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Run 47

Run Det Det Type Source Purpose
47 G112 100 mm IZIP v6 1 x Am-241, 1 x Pb-210 100 mm IZIP test.
2014/05/30 Uninstall tower, mount G112 on tower.
2014/05/31 Install tower, electrical check.
2014/06/01 Leak check, raise dewar.
2014/06/02 Nitrogen transfer.
2014/06/03 Nitrogen blow out, leak detected, warm up.
2014/06/04 Raise dewar, lower dewar.
2014/06/05 Raise dewar, nitrogen transfer.
2014/06/06 Nitrogen blow out, helium transfer.
2014/06/07 Condense and circulate mixture.
2014/06/08 Helium transfer.
2014/06/09 IbIs measurements.
2014/06/10 Tc measurements, charge breakdown measurements, take data.
2014/06/11 Tc measurements, lower dewar, warm up.
2014/06/12 Uninstall and disassemble tower. End of run.

Run 46

Run Det Det Type Source Purpose
46 G106a 100 mm IZIP v6 1 x Am-241, 1 x Pb-210 100 mm IZIP test.
2014/03/03 Tower assembly, Electrical check.
2014/03/06 Electrical check, Reinstall SQUETs.
2014/03/07 Seal IVC.
2014/03/08
2014/03/10 Leak Check: Leak detected in Ebox.
2014/03/11 Leak Check, Nitrogen transfer.
2014/03/12 First helium transfer.
2014/03/13 Helium transfer, Cryoclean mixture.
2014/03/14
2014/03/15
2014/03/16 Helium transfer, Erect shield.
2014/03/17 Condense mixture.
2014/03/18 Take data.
2014/03/19 Helium transfer. Begin circulation.
2014/03/20
2014/03/21 Helium transfer, Lock SQUIDs.
2014/03/22
2014/03/23 Helium transfer.
2014/03/24 Take data.
2014/03/25 Helium transfer, Charge breakdown analysis.
2014/03/26 Compute QET bias, Take data.
2014/03/27 Take data.
2014/03/28 Relock SQUIDs, Helium transfer, Charge neutralization analysis.
2014/03/29
2014/03/30 Helium transfer.
2014/03/31 Helium transfer, Take data.
2014/04/01
2014/04/02 Take data.
2014/04/03 Helium transfer, Take data.
2014/04/04 Take data.
2014/04/05 Helium transfer, Take data.
2014/04/06
2014/04/07 Take data.
2014/04/08 Helium transfer.
2014/04/09 DCRC Troubleshooting.
2014/04/10 DCRC Troubleshooting, Helium transfer.
2014/04/11 IbIs measurements, Calculate 69mK QET bias, Take data.
2014/04/12
2014/04/13 Helium transfer.
2014/04/14 Take data, Helium transfer.
2014/04/15
2014/04/16 Prepulse standard deviation, Charge-only data acquisition, Reiterate QET Biases.
2014/04/17 Charge-only data acquisition, Helium transfer.
2014/04/18 Take data.
2014/04/19 Helium transfer.
2014/04/20
2014/04/21 Helium transfer, take data.
2014/04/22 IbIs curves analysis.
2014/04/23 Tc Measurements.
2014/04/24 Tc Measurements, Swap DCRCs on DIBs 2&3, Relock SQUIDs, IbIs Measurements.
2014/04/25 Relock DIB3 SQUIDs, IbIs Measurements, clean nitrogen cold trap 1, suspect helium cold trap blocked, extract mixture and warm to 4.2 K.
2014/04/26 Clean cold traps.
2014/04/27 Cryoclean mixture, helium transfer.
2014/04/28 Helium transfer.
2014/04/29
2014/04/30 Swap back DCRCs on DIBs 2&3, Relock SQUIDs, IbIs Measurements.
2014/05/01 Helium transfer, Relock DIB2 SQUIDs, IbIs Measurements.
2014/05/02 Data taken, Helium transfer
2014/05/03
2014/05/04 G106a neutralisation study.
2014/05/05 Helium transfer, MIDAS testing.
2014/05/06 Helium transfer, MIDAS testing.
2014/05/07
2014/05/08 Helium transfer, take data.
2014/05/09 Change 1 K pot pump, take data.
2014/05/10 Take data.
2014/05/11 Helium transfer, take data.
2014/05/12 Take data.
2014/05/13 Take data, helium transfer.
2014/05/14 Take data.
2014/05/15 Take data, helium transfer.
2014/05/16 Take data.
2014/05/17 Helium transfer, take data.
2014/05/18 Take data.
2014/05/19
2014/05/20
2014/05/21
2014/05/22
2014/05/23
2014/05/24 Helium transfer.
2014/05/25 Take data.
2014/05/26 Take data.
2014/05/27 Take data.
2014/05/28 Take data.
2014/05/29 Remove Shield, and lower dewar.

Run 45

Run Det Det Type Source Purpose
45 G101b 100 mm Spiral v2 1 x Am-241 Floating phonon rails spiral mask ionisation test.
2014/01/23 Perform tower electrical check. Seal up IVC.
2014/01/24 Perform leak check and raise dewar.
2014/01/27 Through-put test, Initial LHe transfer.
2014/01/28
2014/01/29
2014/01/30
2014/01/31
2014/02/01 Helium transfer.
2014/02/02 Issues with DCRC31. 0 V bias settings for Qi & Qo reverted back to old, incorrect values.
2014/02/03 Take data.
2014/02/04 Helium transfer.
2014/02/05 Take data, recalibrate DCRC 31.
2014/02/06 Take data, helium transfer.
2014/02/07 Take data.
2014/02/08 Helium transfer, take data.
2014/02/09 Take data.
2014/02/10 Helium transfer, take data.
2014/02/11
2014/02/12 Take data.
2014/02/13 Helium transfer, take data.
2014/02/14 Take data.
2014/02/15 Helium transfer.
2014/02/16 Take data.
2014/02/17 Take data.
2014/02/18 Helium transfer, take data.
2014/02/19 Take data.
2014/02/20 Helium transfer, take data.
2014/02/21 Take data.
2014/02/22 Helium transfer.
2014/02/23 Take data.
2014/02/24
2014/02/25 Begin warm up procedure.
2014/02/26 Remove shield.
2014/02/27

Run 44

Run Det Det Type Source Purpose
44 G101b 100 mm Spiral v2 1 x Am-241 Floating phonon rails spiral mask ionisation test.
2013/12/05 Final electrical check on G114. Mount G101b, perform electrical check, and install in IVC. Pump out IVC.
2013/12/09 Leak check, Nitrogen transfer.
2013/12/10 Leak check, cryoclean mixture, possible leak in pump detected.
2013/12/11 Cryopump remaining mixture in IGH lines.
2013/12/19
2013/12/20

Run 43

Run Det Det Type Source Purpose
43 G114 100 mm IZIP v6 1 x Am-241 AJA 100 mm IZIP v6 Tc & Rn measurements.
2013/11/11 Unpack detector, electrical check.
2013/11/19 Tower electrical check, IVC sealed.
2013/11/20 Raise dewar, clean mixture, Nitrogen transfer. Nitrogen blowout, leak detected, lower dewar.
2013/11/21 Reseal IVC, raise dewar, Nitrogen transfer, Helium transfer.
2013/11/22 Condense mixture, reach base temperature.
2013/11/25 Lower dewar, begin pumping on dewar jacket.
2013/11/26 Pump on dewar jacket, cryoclean mixture through cold trap 2.
2013/11/27 Continue pumping on dewar jacket, clean and pump on He and LN2 cold traps.
2013/12/02 Cease pumping on dewar jacket, open IVC.
2013/12/03 Uninstall tower.
2013/12/04

Run 41

Run Det Det Type Source Purpose
41 G101b 100 mm Spiral v2 1 x Am-241 Floating phonon rails spiral mask ionisation test.
2013/10/22 Electrical check on striplines.
2013/10/23 Assemble tower, electrical check.
2013/10/24 Install tower, evacuate IVC, cryoclean mixture.
2013/10/25 Raise dewar, leak check, leak detected, lower dewar, leak check, tighten screws around indium seals, raise dewar, leak check, leak detected, nitrogen transfer, evacuate IVC, cryoclean mixture.
2013/10/26 Blow out nitrogen, leak check, throughput test, first helium transfer, evacuate IVC, cryoclean mixture.
2013/10/27 Condense & circulate mixture.
2013/10/28 Play around with mixture, helium transfer, flash detector.
2013/10/29 Noisy charge baseline on DIB 2.
2013/10/30 Quiet charge baseline on DIB 2, helium transfer, flash detector.
2013/10/31 Noisy charge baseline on DIB 2.
2013/11/01
2013/11/02 Extract mixture, warm up.
2013/11/04 Open IVC, swap SQUET card ZC-13 with ZC-23 for DIB 2, leave stripline 19 connected to DIB 2, reseal & evacuate IVC.
2013/11/05 Leak check, raise dewar, leak check, leak detected, nitrogen transfer, evacuate IVC, problem with cryocleaning mixture.
2013/11/06 Investigate problem with cryocleaning mixture, valve V6 broken, first helium transfer, evacuate IVC.
2013/11/07 Valve V6 repaired, cryoclean mixture, circulate & condense mixture.
2013/11/08 Helium transfer.
2013/11/09 Short D-sub 50 connector pins to ground and connect to DIB 2, flash detector.
2013/11/10 DAQ error, helium transfer.
2013/11/11 Attempted to determine boost parameter, 0 V bias on DCRC31 incorrect so changed, flash detector & acquire data.
2013/11/12 Acquire data.
2013/11/13 Helium transfer, acquire data, analyse data.
2013/11/14 Pump failure, acquire data.
2013/11/15 Helium transfer, acquire data.
2013/11/16 Dismantle shield, warm up.
2013/11/17 Lower dewar.

Run 40

Run Det Det Type Source Purpose
40 none N/A N/A Cryogenics test.
2013/09/14 Evacuate IVC.
2013/09/15 Leak check, raise dewar, nitrogen transfer, cryoclean mixture.
2013/09/16 Problem with nitrogen cold trap 2, cryoclean mixture, leak check nitrogen cold trap 2.
2013/09/17 Leak check nitrogen cold trap 2, clean nitrogen cold traps.
2013/09/18 Leak check nitrogen cold trap 2.
2013/09/19 Cryoclean mixture, nitrogen transfer.
2013/09/20 Blow out ntirogen, positive leak check, throughput test, lower dewar, leak check.
2013/09/24 Clean nitrogen cold traps.
2013/09/26 Leak check, raise dewar, nitrogen transfer, (detector checkout of S11C - unrelated to current run), cryoclean mixture.
2013/09/27 Blow out nitrogen, leak check, throughput test, cryoclean mixture.
2013/09/28 First helium transfer.
2013/09/29 Condense 350 mbar (dump pressure) of mixture.
2013/09/30 Helium transfer, circulate mixture, still heater tests with 350 mbar (dump pressure) of mixture.
2013/10/01 Single-shot test with 350 mbar (dump pressure) of mixture, clean nitrogen cold trap 1, cryoclean mixture.
2013/10/02 Helium transfer, condense & circulate 400 mbar (dump pressure) of mixture.
2013/10/03 Still heater tests with 400 mbar (dump pressure) of mixture.
2013/10/04 Single-shot test with 400 mbar (dump pressure) of mixture, helium transfer, condense 450 mbar (dump pressure) of mixture.
2013/10/05 Circulate mixture, still heater tests with 450 mbar (dump pressure) of mixture.
2013/10/06
2013/10/07 Single-shot test with 450 mbar (dump pressure) of mixture, helium transfer, condense & circulate 500 mbar (dump pressure of mixture).
2013/10/08 Still heater tests with 500 mbar (dump pressure) of mixture.
2013/10/09 Single-shot test with 500 mbar (dump pressure) of mixture, helium transfer, (detector checkouts of G101b & G102a - unrelated to run).
2013/10/10 Condense & circulate mixture.
2013/10/11 Single-shot test, condense & circulate mixture, helium transfer, bleed remaining mixture out of dump into fridge.
2013/10/13 Single-shot test (results shown on 2013/10/14).
2013/10/14 Results from yesterday's single-shot test, helium transfer, condense & circulate mixture.
2013/10/15 Remove excess He-3 from mixture using single-shot method, helium transfer.
2013/10/16 Still heater tests, single-shot test, condense mixture.
2013/10/17 Circulate mixture, remove excess He-3 from mixture in stages using single-shot method, single-shot test, helium transfer.
2013/10/18 Remove helium cold trap from circulation line and replace with temporary manifold.
2013/10/19 Condense & circulate 350 mbar (dump pressure) of mixture.
2013/10/20 Still heater tests, add some mixture from dump in stages, single-shot test.
2013/10/21 Lower dewar, warm up.

Run 39

Run Det Det Type Source Purpose
39 G106a 100 mm 1 x Am-241 source & 1 x Pb-210 source 100 mm IZIP run.
2013/07/25 Electrical check, shorts found on Candy.
2013/08/11 Solder PCBs to combine striplines 27 & 21, electrical check.
2013/08/12 Assemble tower, tower level continuity check.
2013/08/13 Install tower.
2013/08/14 Electrical check, clean ebox flange, electrical check, evacuate IVC.
2013/08/15 Raise dewar, nitrogen transfer, cryoclean mixture
2013/08/16 Preparation for power cut, cryoclean mixture.
2013/08/17 Electrical check, blow out nitrogen, leak check, first helium transfer, cryoclean mixture.
2013/08/18 Evacuate IVC, cryoclean mixture.
2013/08/19 Condense mixture, electrical check, circulate mixture.
2013/08/20 Electrical check, helium transfer, battle high base temperature.
2013/08/21 Battle high base temperature.
2013/08/22
2013/08/23
2013/08/24
2013/08/25
2013/08/26
2013/08/27
2013/08/28
2013/08/29
2013/08/30
2013/08/31
2013/09/01
2013/09/02
2013/09/03
2013/09/04
2013/09/05

Run 38

Run Det Det Type Source Purpose
38 N/A 50 pF Capacitor N/A Flexible Side Coax Test
2013/07/18 Assemble tower, tower level continuity check.
2013/07/19 Install tower, electrical check.
2013/07/20 Evacuate IVC, leak check, raise dewar, leak check, nitrogen transfer, cryoclean mixture.
2013/07/21 Electrical check, clean nitrogen cold traps, cryoclean mixture, blow out nitrogen, leak check, first helium transfer.
2013/07/22 Condense mixture, electrical check, circulate mixture, acquire data.
2013/07/23 Finished data aquisition, begin warm - up.
2013/07/24 Warm up.

Run 37

Run Det Det Type Source Purpose
37 G101b 100 mm 1 x Am-241 source & 1 x Pb-210 source 100 mm spiral mask run.
2013/06/05 Assemble G101b on tower. Discovered broken side coax
2013/06/06 Finish assembling tower. Tower electrical check.
2013/06/17 Install tower. Seal IVC.
2013/06/18 Evacuate IVC.
2013/06/19 Leak Check. Electrical Check.
2013/06/20 Change O-ring. Leak Check. Evacuate Dewar.
2013/06/21 Evacuate IVC, leak check, raise dewar, leak check, nitrogen transfer.
2013/06/22 Expected power cut so deliberately slow day, evacuate N2 exchange gas.
2013/06/23 Blow out nitrogen, electrical check, leak check, feed mixture from cryopump into dump, cryoclean mixture, first helium transfer.
2013/06/24 Cold trap cleaning. Manual condensation of mixture.
2013/06/25 Electrical check. Attach DCRCs.
2013/06/26
2013/06/27 Began taking data.
2013/06/28 Graphs to summarize +/-4V and -/+4V data taken.
2013/06/29 Graphs of data at +/-2.5V and -/+ 2.5V. Some evidence of strange ~50keV peak for -/+2.5V on spectra from both sides.
2013/06/30
2013/07/01 Started bias sweeps with Am-241 & Pb-210. Improper trigger files led to unacceptably low statistics.
2013/07/02 Continued bias sweeps with improper trigger files.
2013/07/03 Abandoned previous bias sweep. Began new bias sweep with proper trigger files.
2013/07/04 Spectra for +/-1V, -/+1V, +/-1.5V, -/+1.5V, +/-2V, -/+2V, +/-3V, -/+3V, +/-3.5V, -/+3.5V. Note: on source side, collecting electrons reveals ~50keV peak not found when collecting holes.
2013/07/05 Spectra for +/-5V, -/+5V, +/-6V, -/+6V, +/-8V, -/+8V. Double peak ~60keV when collecting holes with 6V bias.
2013/07/06 Spectra for +/-10V, -/+10V, +/-12V, -/+12V. Two peaks ~0.8 and ~0.9 found on Qpartition plot. Investigated these peaks and found they contained good data with events almost exclusively at 2 low energy peaks.
2013/07/07 Cryocleaning mixture.
2013/07/08 Pump mixture to dump. Condense mixture.
2013/07/09
2013/07/10 Summary of Ba-133 data at +/-2.5V, -/+2.5V, +/-3V, -/+3V, +/-3.5V, -/+3.5V,
2013/07/11 Took Ba-133 data at +/-5V, -/+5V, +/-8V, -/+8V, +/-10V, -/+10V, +/-12V, -/+12V,
2013/07/12 Took data at -/+0.5V, -/+2.5V, -/+4V without Ba-133 to supplement seagull plot for surface events.
2013/07/13 Pumped mixture to dump. Began warming up.
2013/07/14 Pumped mixture to dump. Began warming up.
2013/07/17 Uninstalled and Run 37 tower, installed Run 38 tower.

Maintenance (2013/03/27)

  • Investigation of leak in mixing chamber lines.
  • Assessment of DCRC power supply problem.
  • Clean PKR 251 pressure sensor.
2013/03/27 DCRC tests, leak checking mixing chamber lines.
2013/03/28 Leak tests done.
2013/03/29 Cryopump mixture from behind exhaust. Mixture stored in cryopump.
2013/03/30 Leak tests done on He3 pump. Big leak suspected above motor at back of pump.
2013/03/31 DCRC tests.
2013/04/01 Leak check He-3 pump.
2013/04/02 Dismantle PKR 251 pressure sensor and clean, broken anode.
2013/04/03
2013/04/04 Check integrity of stripline 20.
2013/04/05 Dismantle He-3 pump in attempt to replace shaft seal.
2013/04/06
2013/04/07
2013/04/08 Removed shaft seal from centering disc, bushing stuck on shaft, additional special shaft seal required.
2013/04/12 Assemble PKR 251 pressure sensor with new anode, leak test, calibrate gauge, overnight test.
2013/04/13 Test PKR 251 pressure sensor.
2013/04/14 Test PKR 251 pressure sensor.
2013/04/15 Remove 30 mK, 100 mK & 4.2 K cans, remove shield around mixing chamber.
2013/05/04 Update on stripline work.
2013/05/13 Update on stripline work, replacement of He-3 pump's shaft seals.
2013/05/20 Update on stripline work.
2013/06/03

Run 36

Run Det Det Type Source Purpose
36 G101b 100 mm 1 x Am-241 source & 1 x Pb-210 source 100 mm spiral mask run.
2013/03/06 Assemble tower, electrical check, install tower, electrical check, problem with Qo bias on stripline 20.
2013/03/07 Cryoclean mixture, electrical check, short channels on SQUET card ZC-70, electrical check, seal and evacuate IVC, install inner polyethylene shield.
2013/03/08 Clean cold traps, leak check, quick electrical check, cryoclean mixture, raise dewar, leak check, nitrogen transfer.
2013/03/09 Electrical check, nitrogen blowout, leak check, first helium transfer, clean nitrogen cold traps.
2013/03/10 Evacuate IVC overnight, cryoclean mixture, quick electrical check, condense mixture, erect poly-lead shield, electrical check.
2013/03/11 Condense mixture.
2013/03/12 Take data, clean cold traps.
2013/03/13
2013/03/14 Take data, clean cold traps.
2013/03/15 Take data
2013/03/16 Pump all mixture to dump.
2013/03/17 Install new speedivalve; Clean cold traps; Clean mixture; Clean cold traps.
2013/03/18 Helium transfer; Condense, Circulate;
2013/03/19 Take test data; Test out new circulation methods and cleaning cold traps w/ thoughts.
2013/03/20 Take test data; Attempt leak tests on cold traps. Blockage occurred. Clean cold traps.
2013/03/21 Take test data; Switch circulation to cold trap 2.
2013/03/22
2013/03/24

Run 35

Run Det Det Type Source Purpose
35 G106a 100 mm 1 x Am-241 source Fourth 100 mm iZIP run.
2013/02/20 Open IVC, replace SQUET card.
2013/02/21 Problem with stripline 21, attempt patch-up, seal and evacuate IVC.
2013/02/22 Leak check, raise dewar, leak check, nitrogen transfer.
2013/02/23 Blow out nitrogen, leak check, throughput test, leak check, electrical check, first helium transfer.
2013/02/24 Condense mixture, electrical check.
2013/02/25 Circulate mixture.
2013/02/26 Flash detector, helium transfer.
2013/02/27 Loss of base temperature, extract mixture and warm up to 4.2 K.
2013/02/28 Leak check mixing chamber lines, clean cold traps.
2013/03/01 Cryopump mixture out of He-3 pump's exhaust, attempt to replace He-3 pump's oil mist eliminator, cryoclean mixture.
2013/03/02 Clean cold traps, cryoclean mixture.
2013/03/03 Condense and circulate mixture, flash detector.
2013/03/04 IbIs and Tc measurements for C2, loss of base temperature, commence warm-up procedure, lower dewar.
2013/03/05 Open IVC, uninstall tower.

Run 34

Run Det Det Type Source Purpose
34 G106a 100 mm 1 x Am-241 source Third 100 mm iZIP run.
2013/01/02 Clean cold traps.
2013/01/03 Mixture cleaning, LN2 transfer
2013/01/04 Blow out nitrogen, electrical check, leak check, throughput test, leak check.
2013/01/05 Leak check, first helium transfer.
2013/01/06 Cryoclean mixture, condense and circulate mixture.
2013/01/07 Helium transfer, tune SQUIDs.
2013/01/08 Tune SQUIDs.
2013/01/09 IbIs measurements
2013/01/10 SQUID settings finalized; Take IbIs measurements
2013/01/11 LHe transfer;
2013/01/12 IbIs measurements.
2013/01/13
2013/01/14
2013/01/15
2013/01/16 Charge breakdown tests
2013/01/17 LHe transfer; Charge breakdown tests.
2013/01/18 LHe transfer
2013/01/19
2013/01/20 Helium transfer, flash detector.
2013/01/21 Dib1 Tc measurements
2013/01/22 Board problems; Charge breakdown tests; LHe transfer
2013/01/23 Dib3 Tc measurements; Charge breakdown tests
2013/01/24 LHe transfer; Charge breakdown tests.
2013/01/25 Dib2 Tc measurements
2013/01/26 LHe transfer
2013/01/27 Board debugging. Issues with data taking; PSDs
2013/01/28 LHe transfer; B3 and C2 Tc measurements
2013/01/29 Attempts at data taking (quality not good)
2013/01/31 Attempts at data taking (quality not good)
2013/02/01 Attempts at data taking (quality not good)
2013/02/02 Attempts at data taking (quality not good)
2013/02/03 LHe transfer
2013/02/04 Take data!
2013/02/05 Take data!
2013/02/06 Take data!
2013/02/07 Take data!
2013/02/08 Clean cold traps; Take data!
2013/02/09
2013/02/10
2013/02/11
2013/02/12
2013/02/13 Boards debugging. Take data.
2013/02/14
2013/02/15
2013/02/16 New DCRC/ DAQ settings. Take data
2013/02/17 Data debugging. Begin warm-up.

Run 33

Run Det Det Type Source Purpose
33 G106a 100 mm 1 x Am-241 source Second 100 mm iZIP run.
2012/11/27 Unpack detector. Tower assembly.
2012/11/28 Tower installation. Evacuate IVC overnight.
2012/11/29 Raise dewar. LN2 transfer.
2012/11/30 Pump out N2 exchange gas. Mixture cleaning.
2012/12/01 Blow out LN2; Slow LHe transfer; Pump out He exchange gas
2012/12/02 Start 1 K pot, condense, circulate mixture; Electrical check (posted)
2012/12/03 Flash detector. LHe transfer
2012/12/04 DCRC board testing.
2012/12/05 LHe transfer; Still heating tests
2012/12/06 Testing DCRCs and studying effect of old vs. new PoE.
2012/12/07 Testing DCRC heat load; Modifying Mixture; LHe transfer; Electrical check
2012/12/08 Add mixture, single-shot test.
2012/12/09 Pump mixture to dump and warm up to 4.2 K, leak check, helium transfer, change He-4 pump oil.
2012/12/10 Leak check, evacuate IVC overnight.
2012/12/11 Leak check, cryoclean mixture, helium transfer, condense mixture.
2012/12/12 Circulate mixture, DCRC board testing, pump mixture to dump and warm up, evacuate IVC overnight.
2012/12/13
2012/12/14 Leak check, overpressurise main bath, leak check, nitrogen transfer, blow out nitrogen, leak check, dump mixture into fridge, leak check, warm up.
2012/12/15 Lower dewar, open IVC.
2012/12/16 Electrical check, replace indium seal, evacuate IVC, leak check.
2012/12/17 Raise dewar, overpressurise main bath, leak check, cryoclean mixture, nitrogen transfer, quick electrical check, evacuate IVC.
2012/12/18 Blow out nitrogen, leak check, overpressurise main bath, leak check, electrical check, throughput test, helium transfer, evacuate IVC, cryoclean mixture.
2012/12/19 Leak check.
2012/12/20 Leak check, condense mixture, leak check hose to IVC, helium transfer, electrical check, circulate mixture.
2012/12/21 DCRC board testing: successful, flash detector.
2012/12/22
2012/12/23
2012/12/24
2012/12/25
2012/12/26
2012/12/27
2012/12/28

Run 32

Run Det Det Type Source Purpose
32 G103a 100 mm 1 x Am-241 source 100 mm iZIP run.
2012/09/27 Seal and evacuate IVC, electrical check.
2012/09/28 Leak check, electrical check, evacuate dewar, clean cold traps, raise dewar, leak check, cryoclean mixture.
2012/09/29 Cryoclean mixture, nitrogen transfer, blow out nitrogen, leak check.
2012/09/30 Throughput test, leak check, first helium transfer, cryoclean mixture, electrical check, condense mixture.
2012/10/01 Reach base temperature, partial electrical check, flash detector.
2012/10/02 Flash detector, helium transfer.
2012/10/03
2012/10/04 Helium transfer.
2012/10/05 Erect polyethylene-lead shield, SQUID tuning, flash detector.
2012/10/06 Helium transfer, SQUID tuning.
2012/10/07
2012/10/08 SQUID tuning, helium transfer, interrupt circulation, clean nitrogen cold traps, restart circulation.
2012/10/09 SQUID tuning, flash detector.
2012/10/10 Helium transfer, tuned SQUIDs for all 3 boards, take first data set.
2012/10/11 Retune SQUIDs, take data.
2012/10/12 Helium transfer, retune SQUIDs.
2012/10/13 Retune SQUIDs, take data.
2012/10/14 Take data, helium transfer.
2012/10/15
2012/10/16 Helium transfer.
2012/10/17 Take Ba-133 data, interrupt circulation, clean nitrogen cold traps, helium transfer, restart circulation.
2012/10/18 Zap SQUIDs, take Ba-133 data.
2012/10/19 Helium transfer.
2012/10/20 Take Ba-133 data, DAQ crash, take Ba-133 data.
2012/10/21 Helium transfer, take data.
2012/10/22
2012/10/23 Take data, helium transfer.
2012/10/24 Take data, comparison of SQUID settings.
2012/10/25 Helium transfer.
2012/10/26
2012/10/27 Charge breakdown measurements, take charge-only data, helium transfer.
2012/10/28 Take charge-only data, DAQ crash.
2012/10/29 Helium transfer, zap SQUIDs.
2012/10/30 Zap SQUIDs, take charge-only data, a look at relative phonon calibration.
2012/10/31 Take charge-only data, helium transfer, analyse charge-only data, reset DAQ and boards, zap SQUIDs.
2012/11/01 Zap SQUIDs, take charge-only data, analyse charge-only data, take charge-only data.
2012/11/02 Helium transfer, take charge-only data.
2012/11/03 Take charge-only data.
2012/11/04 Helium transfer.
2012/11/05 Zap SQUIDs, take charge-only data, initial IbIs measurements.
2012/11/06 Take charge-only data, helium transfer.
2012/11/07
2012/11/08 Take Ba-133 charge-only data, helium transfer.
2012/11/09 Take Ba-133 charge-only data.
2012/11/10 Take charge-only data, helium transfer, reset DAQ and DCRCs, zap SQUIDs.
2012/11/11 Take Ba-133 charge-only data, analyse Ba-133 charge-only data, odd baseline behaviour during IbIs measurement for A3, take Ba-133 charge only data.
2012/11/12 Helium transfer, analyse Ba-133 charge-only data.
2012/11/13 Take Ba-133 charge-only data, analyse Ba-133 charge-only data.
2012/11/14 Take Ba-133 charge-only data, helium transfer.
2012/11/15
2012/11/16 Helium transfer.
2012/11/17 IbIs measurements, final SQUID settings, take Ba-133 data.
2012/11/18
2012/11/19
2012/11/20
2012/11/21
2012/11/22
2012/11/23
2012/11/24
2012/11/26

Run 31

Run Det Det Type Source Purpose
31 G103a 100 mm 1 x Am-241 source First 100 mm iZIP run.
2012/06/26 Unpack crystal, electrical check, accelerometer data.
2012/06/27 Cryoclean mixture.
2012/06/28 Evacuate dewar, assemble tower.
2012/06/29 Assemble tower, short found & remedied on SCUHBA extender plug PCB, clean cold traps, electrical check, install tower, cryoclean mixture, electrical check, short found on QET lines.
2012/06/30 Clean ebox feedthroughs, short still present, evacuate IVC, leak check, raise dewar, leak check, nitrogen transfer, cryoclean mixture.
2012/07/01 Blow out nitrogen, leak check, found gross leak, cryoclean mixture.
2012/07/02 Lower dewar, leak check.
2012/07/03 Replace bottom indium seal, tighten bolts around other indium seals, electrical check, evacuate IVC, leak check, raise dewar, leak check, nitrogen transfer, pump on mixing chamber lines.
2012/07/04 Blow out nitrogen, leak check, electrical check, first helium transfer, cryoclean mixture.
2012/07/05 Electrical check, condense & circulate mixture.
2012/07/06 Battle high base temperature, Play around with still heater.
2012/07/07 Tc measurements.
2012/07/08 Cooling power measurements, extract mixture from fridge.
2012/07/09 Clean cold traps, recondense mixture.
2012/07/10 Circulate mixture, tune SQUIDs.
2012/07/11 Helium transfer, Tc measurements, flash detector.
2012/07/12 IbIs measurements (not shown), flash detector, helium transfer.
2012/07/13 IbIs measurements (not shown).
2012/07/14
2012/07/15
2012/07/16
2012/07/17
2012/07/18
2012/07/19
2012/07/20
2012/07/21
2012/07/22 LHe transfer
2012/07/23 Test DCRC boards; new DCRC settings made; IbIs measurement; Take data
2012/07/24 LHe transfer; Zap SQUIDS; Take data
2012/07/25 Connect up DCRC31- establish settings; Zap SQUIDs
2012/07/26 Take data; LHe transfer; Analyze data; Take data
2012/07/27 Modify DCRC phonon settings; Tc measurements
2012/07/28 Take data; LHe transfer; Flash detector
2012/07/29 Rise in MC temp; Take charge data
2012/07/30 DAQ crashed; Clean cold traps; LHe transfer; Flash detector
2012/07/31 Clean cold traps;
2012/08/01 LHe transfer; Base temp. investigation; Analyze data
2012/08/02 1-shot method; Base temp. investigation; Analyze data
2012/08/03 LHe transfer; Base temp. investigation; Analyze data
2012/08/04 Base temp. investigation
2012/08/05 LHe transfer; Base temp. investigation
2012/08/06 Base temp. investigation; Take data
2012/08/07 LHe transfer; Take data; Analyze data
2012/08/08 Put on top part of lead shield; Analyze data; Take data
2012/08/09 Take data; Study of normal resistances for DCRC33 and DCRC32; LHe transfer.
2012/08/10 Study of resistances; Stop 1K pot, warm up to 4K
2012/08/11 LHe transfer
2012/08/12 Leak check; Pump IVC overnight
2012/08/13 Spray test; LHe transfer Re-circulate mixture
2012/08/14 Stopped circulation; Re-started; Mixture-in-dump tests; Pump out mixture overnight
2012/08/15 LHe transfer; Condensed mixture to leave 200 mbar in dump; Circulate
2012/08/16 Bleed mixture out of dump and take temperature and pressure readings.
2012/08/17 Assess effect of still heater on temperatures and pressures, helium transfer, single shot test.
2012/08/18 Condense and circulate mixture, single shot test.
2012/08/19 Add He-4 to mixture, cryoclean mixture, helium transfer.
2012/08/20 Condense and circulate mixture, helium transfer.
2012/08/21 Assess effect of still heater on temperatures and pressures, extract He-3 from mixture in stages to see effect on base temperature.
2012/08/22 Extract mixture from fridge, helium transfer, leak check.
2012/08/23 Leak check, cryopump mixture from He-3 pump exhaust, change He-3 pump oil, feed cryopumped mixture back into dump.
2012/08/24 Cryoclean mixture, clean cold traps, cryoclean mixture, helium transfer.
2012/08/25 Condense and circulate mixture.
2012/08/26 Assess effect of 1 K pot temperature on base temperature, helium transfer, bleed mixture out of dump and take pressure and temperature readings.
2012/08/27 Bleed mixture out of dump and take pressure and temperature readings.
2012/08/28 Bleed mixture out of dump and take pressure and temperature readings, restart pumps after power failure, helium transfer, single shot test, summary of findings so far regarding base temperature problem.
2012/08/29 Condense and circulate mixture.
2012/08/30 Assess effect of still heater on temperatures and pressures, extract mixture from fridge, condense and circulate mixture.
2012/08/31 Extract mixture from fridge, evacuate IVC, leak check.
2012/09/01 Leak check, helium transfer.
2012/09/02 Leak check.
2012/09/03 Helium transfer, superfluid leak check from 1 K pot.
2012/09/04 Leak check, condense and circulate mixture, extract mixture from fridge
2012/09/05 Superfluid leak check from mixing chamber, helium transfer, uncalibrated He-3 leak check, cryoclean mixture.
2012/09/06 Leak check, uncalibrated He-3 leak check, cryoclean mixture.
2012/09/07 Condense and circulate mixture, helium transfer.
2012/09/08 Extract He-3 from mixture to see effect on base temperature.
2012/09/09 Extract He-3 from mixture to see effect on base temperature, helium transfer.
2012/09/10 Flash detector, take charge-only Ba-133 data.
2012/09/11 Extract mixture from fridge, helium transfer, condense and circulate mixture, flash detector.
2012/09/12 Take charge-only Ba-133 data.
2012/09/13 Extract mixture from fridge, remove poly-lead shield, leak check.
2012/09/14 Leak check.
2012/09/15
2012/09/16 Leak check.
2012/09/17 Leak check.
2012/09/18 Nitrogen transfer.
2012/09/19 Blow out nitrogen, leak check: found gross leak in bottom flange, overpressurise main bath, leak check: gross leak confirmed.
2012/09/20
2012/09/21

Run 30

Run Det Det Type Source Purpose
30 N/A N/A N/A Empty run to perform leak checks after upgrade; cool down to 77 K to perform cryoleak check
2012/06/25 Electrical check, evacuate IVC, leak check, electrical check, raise dewar, leak check, nitrogen transfer, cryoclean mixture.
2012/06/26 Blow out nitrogen, leak check, throughput test, leak check, cryoclean mixture, lower dewar and warm up.

Run 29

Run Det Det Type Source Purpose
29 N/A 50 pF Capacitor N/A Fourth Flexible Side Coax Test
2012/05/30 Assemble tower, electrical check.
2012/05/31 Electrical check, install tower, electrical check, evacuate IVC.
2012/06/01 Leak check, raise dewar, leak check, nitrogen transfer, cryoclean mixture.
2012/06/02 Electrical check, blow out nitrogen, leak check, throughput test, leak check, first helium transfer, electrical check, cryoclean mixture.
2012/06/03 Condense and circulate mixture, charge gain measurements.
2012/06/04
2012/06/05

Run 28

Run Det Det Type Source Purpose
28 G101b 100 mm 1 x Am-241 Q2 position
2011/11/07 Unpack crystal, detector level continuity check.
2012/05/03 Cryoclean mixture.
2012/05/04 Cryoclean mixture.
2012/05/05 Cryoclean mixture.
2012/05/06 Cryoclean mixture.
2012/05/07 Assemble tower, electrical checks, cryoclean mixture.
2012/05/08 Install tower, electrical checks, cryoclean mixture.
2012/05/09 Leak check, raise dewar, leak check, nitrogen transfer, cryoclean mixture.
2012/05/10 Blow out nitrogen, leak check, throughput test, leak check, first helium transfer, cryoclean mixture.
2012/05/11 Condense and circulate mixture.
2012/05/12 Flash detector.
2012/05/13 Take first data series, DAQ crash, helium transfer, Qo DIB 1 noise study, charge breakdown study, analyse first data series.
2012/05/14 DAQ crashes, struggle to take data.
2012/05/15 DAQ crash, flash detector, change DAQ, take data, DAQ crash, data reduction problem.
2012/05/16 DAQ crash, DAQ problems, flash detector, revert to old DAQ, take Ba-133 data.
2012/05/17 Take Am-241 data, flash detector, analyse Ba-133 data.
2012/05/18 Take first set of bias sweeps with Ba-133 source, helium transfer, flash detector.
2012/05/19 Take second set of bias sweeps with Ba-133 source, power cut, restart IGH, recirculate mixture, flash detector, retake second set of bias sweeps with Ba-133 source.
2012/05/20
2012/05/21
2012/05/22
2012/05/23
2012/05/24
2012/05/25
2012/05/26
2012/05/27
2012/05/28
2012/05/29

Run 27

Run Det Det Type Source Purpose
27 N/A 50 pF Capacitor N/A Third Flexible Side Coax Test, Second Attempt (version 3.1).
2012/04/14 Assemble flexible side coax, assemble tower, electrical checks, install tower, electrical checks.
2012/04/15 Leak check, crycoclean mixture, raise dewar, leak check, nitrogen transfer.
2012/04/16 Cryoclean mixture, clean nitrogen cold traps, blow out nitrogen, leak check, warm up.
2012/04/17 Lower dewar, cryoclean mixture.
2012/04/18 Open IVC, replace indium seal, close IVC, cryoclean mixture.
2012/04/19 Leak check, open IVC, cryoclean mixture.
2012/04/20 Replace indium seal, close IVC, cryoclean mixture.
2012/04/21 Leak check, raise dewar, leak check, nitrogen transfer, cryoclean mixture.
2012/04/22 Blow out nitrogen, leak check, throughput test, leak check, first helium transfer, cryoclean mixture.
2012/04/23 Condense and circulate mixture, take PSDs.
2012/04/24 20 cm drop test to at rest ratios.
2012/04/25 Helium transfer.
2012/04/26 Play around with speaker to reduce electrical coupling.
2012/04/27 Helium transfer, play around with speaker to reduce electrical coupling.
2012/04/28 Retake selected PSDs, attempt to induce microphonics through hitting needle valve.
2012/04/29 Take PSDs with 1 K pot pump off, warm up.

Run 26

Run Det Det Type Source Purpose
26 N/A 50 pF Capacitor N/A Third Flexible Side Coax Test
2012/03/16 Solder pins and components to Flexible Side Coax SCAB & SCHUBA v2.
2012/03/28 Assemble flexible side coax, assemble tower, electrical checks.
2012/03/29 Install tower, cryoclean mixture.
2012/03/30 Leak check, raise dewar, leak check, clean cold traps, cryoclean mixture, nitrogen transfer.
2012/03/31 Blow out nitrogen, leak check, throughput test, leak check, helium transfer.
2012/04/01 Condense and circulate mixture, attempt to take data but run into problems.
2012/04/02
2012/04/03 Helium transfer.
2012/04/04 Problem with circuit.
2012/04/06 Warm up.

Run 25

Run Det Det Type Source Purpose
25 N/A 50 pF Capacitor N/A Second Flexible Side Coax Test
2012/03/10 Solder pins and components to Flexible Side Coax SCAB v1.
2012/03/15 Cryoclean mixture, construct tower.
2012/03/16 Cryoclean mixture, install tower, clean cold traps.
2012/03/17 Reseal IVC
2012/03/18 LN2 Transfer
2012/03/19 Pump / pressure gauge diagnosing
2012/03/20 LHe transfer.
2012/03/21 Condense / circulate. Take data
2012/03/22 Take data. Warm-up
2012/03/23 Cool-down again. Re-take data
2012/03/26 Lower dewar. Warm up

Run 24

Run Det Det Type Source Purpose
24 N/A 50 pF Capacitor N/A First Flexible Side Coax Test
2012/02/28 Evacuate dewar.
2012/03/01 Create flexible side coax: problems, create fake detector.
2012/03/02 Create flexible side coax: more problems.
2012/03/03 Assemble tower, install tower, flexible side coax problems, uninstall tower.
2012/03/04 Brief description of flexible side coax, fix problem with side coax, reassemble tower, install tower.
2012/03/05 Install tower, electrical check, seal IVC.
2012/03/06
2012/03/07
2012/03/08
2012/03/09
2012/03/10

Run 23

Run Det Det Type Source Purpose
23 G102a 100 mm 1 x Am-241 on ground electrode side under Q2 “High” voltage test
2012/01/24 Evacuate IVC, electrical check, cryoclean mixture, circuit diagram & PCB layout for HV DCRC interface board.
2012/01/25 Leak check, nitrogen transfer, clean nitrogen cold traps.
2012/01/26 Clean nitrogen cold traps, cryoclean mixture, electrical check, blow out nitrogen, leak check, first helium transfer.
2012/01/27 Second helium transfer, electrical check, condense & circulate mixture, flash detector.
2012/01/29 Base temperature problems, helium transfer.
2012/01/30
2012/01/31 Take first data series: -7 V bias; Am-241 only, helium transfer.
2012/02/01 Take data with Ba-133 source.
2012/02/02 Helium transfer, take data with Ba-133 source.
2012/02/03 DAQ crash, take data with Ba-133 source, solder components onto and perform continuity checks on HV DCRC interface boards, helium transfer, take Am-241 only data.
2012/02/04 Bench tests on HV DCRC interface boards and first look at traces, take Ba-133 data.
2012/02/05 Helium transfer, base temperature problems, take Ba-133 data.
2012/02/06 Battle with noise from HV DCRC interface boards, take Ba-133 data.
2012/02/07 Helium transfer, battle with noise from HV DCRC boards.
2012/02/08 Battle with noise from HV DCRC interface boards, take Ba-133 data.
2012/02/09 Take Ba-133 data.
2012/02/10 Helium transfer, base temperature problems.
2012/02/11 Clean helium cold trap, battle with noise from HV DCRC interface boards.
2012/02/12 Take Ba-133 data, battle with low energy events, base temperature problems, helium transfer, circulation problems: V6 screw on IGH broken.
2012/02/13 Battle with noise from HV DCRC interface boards, first data with HV DCRC interface boards: +10 V bias on ground electrode (ie. collect holes), charge breakdown witnessed at 15-20 V, helium transfer.
2012/02/14 Base temperature problems, take Ba-133 data, problem with DCRC33.
2012/02/15 Battle with noise from HV DCRC interface boards, helium transfer, confirmed hints of charge breakdown at +15 V bias; unstable, complete charge breakdown at +20 V bias.
2012/02/16 Problem with DCRC33, take Ba-133 data, take Ba-133 data at elevated temperature.
2012/02/17 DAQ crash, take Ba-133 data, helium transfer, take Am-241 only data.
2012/02/18 DAQ crash, take Ba-133 data at elevated temperature.
2012/02/19 Helium transfer, take Ba-133 data at elevated temperature.
2012/02/20 Take Ba-133 data at elevated temperatures.
2012/02/21 Take Am-241 only data at base and elevated temperatures, apply negative biases to ground electrode with HV DCRC interface boards: hints of charge breakdown at -40 V bias; complete charge breakdown at -45 V bias, helium transfer.
2012/02/22 DAQ crash, take Am-241 data at elevated temperature.
2012/02/23 Take Ba-133 data at elevated temperature, clean helium and nitrogen cold traps.
2012/02/24 Take Ba-133 data with HV DCRC interface boards, warm up.

Run 22

Run Det Det Type Source Purpose
22 G102a 100 mm 1 x Am-241 on ground electrode side under Q2
2011/11/23 Assemble tower, tower level continuity check.
2011/11/24 Install tower, electrical check, cryoclean mixture.
2011/11/25 Nitrogen transfer.
2011/11/26 Electrical checks, throughput tests, blow out LN2 → leak found
2011/11/28 Re-seal IVC; Pump IVC.
2011/11/29 Electrical check, leak checks, throughput tests, LN2 transfer.
2011/11/30 Cooling, throughput test to find optimal opening for V6 when cleaning mixture
2011/12/01 Blow out LN2, cryoclean mixture, LHe transfer
2011/12/02 Condense/circulate mixture; Flash detector
2011/12/03 LHe transfer, take data
2011/12/04 Analyze data, take data w/ Ba-133 source
2011/12/05 Analyze data
2011/12/06 Analyze data, LHe transfer
2011/12/07 Analyze data
2011/12/08 Take data
2011/12/09 Take data
2011/12/10 Take data
2011/12/11 Take data
2011/12/12 Take data
2011/12/13 Take data
2011/12/14 Take data
2011/12/15 Take data
2011/12/16 Take data
2011/12/17 Take data
2011/12/18 Take data
2011/12/19 Take data
2011/12/20 Take data
2011/12/21 Take data
2011/12/22 Take data
2011/12/23 Take data
2011/12/24 Take data
2011/12/25 Take data

Run 21

Run Det Det Type Source Purpose
21 G21A 1 cm x 3“ single-sided iZIP 1 x Am-241 above phonon channel C
1 x Am-241 on edge of phonon channel B
TAMU iZIP test
2011/11/04 Wire bond scheme, detector level continuity checks.
2011/11/05 QET A shorted to chassis, broken wire bonds during debugging.
2011/11/08 New wire bond scheme, detector & tower level continuity checks.
2011/11/09 Fabricate spacers.
2011/11/10 Assemble tower, tower level continuity checks, install tower, electrical check, cryoclean mixture.
2011/11/11 Nitrogen transfer, blow out nitrogen, electrical check, throughput test, first helium transfer, cryoclean mixture.
2011/11/12 Cryoclean mixture, possible leak.
2011/11/13 Condense mixture.
2011/11/14 Warm up, reseal flange, evacuate IVC.
2011/11/15 Electrical check, raise dewar, nitrogen transfer, cryoclean mixture.
2011/11/16 Electrical check, blow out liquid nitrogen, throughput test, helium transfer, electrical check, cryoclean mixture.
2011/11/17
2011/11/18
2011/11/19
2011/11/20
2011/11/21 Sample pulses from phonon channel B, IbIs curve from phonon channel B

Run 20

Run Det Det Type Source Purpose
20 G102 100 mm 1 x Am-241 on ground electrode side under Q2
2011/10/17 Evacuate dewar, assemble tower.
2011/10/18 Install tower, evacuate IVC, cryoclean mixture.
2011/10/19 Leak check, raise dewar, leak check, nitrogen transfer.
2011/10/20 Blow out nitrogen, electrical check, warm up due to possible short between Q4 and QET B (DIB1).
2011/10/21 Uninstall tower, electrical check.
2011/10/22 Install tower, evacuate IVC.
2011/10/23 Raise dewar, nitrogen transfer.
2011/10/24 Electrical check, blow out nitrogen, throughput test, helium transfer, electrical check.
2011/10/25
2011/10/26
2011/10/27
2011/10/28
2011/10/29
2011/10/30
2011/10/31
2011/11/01

Run 19

Run 18

Run Det Det Type Source Purpose
18 G51 iZIPv4 none iZIP stability test
2011/09/19 Assemble tower, install tower, pump IVC.
2011/09/20 Leak check, raise dewar, transfer liquid N2.
2011/09/21
2011/09/22
2011/09/23
2011/09/24
2011/09/25
2011/09/26
2011/09/27

Run 17

Run Det Det Type Source Purpose
17 G53 iZIPv5 none iZIP stability test
2011/09/08 Electrical check, assemble tower, electrical check, install tower, electrical check, evacuate IVC.
2011/09/09 Leak check.
2011/09/10
2011/09/11
2011/09/12
2011/09/13
2011/09/14
2011/09/15
2011/09/16
2011/09/17
2011/09/18

Run 16

Run Det Det Type Source Purpose
16 G102 100 mm 1 x Am-241 on ground electrode side under Q2
2011/08/25 Assemble tower, electrical check, install tower.
2011/08/26 Electrical check, evacuate IVC, leak check, raise dewar, leak check, LN2 transfer, cryoclean mixture.
2011/08/27 Cryoclean mixture, throughput test, blow out LN2, clean 1 K pot pump exhaust piping.
2011/08/28 Electrical check, first LHe transfer. Condense and circulate mixture, bake detector.
2011/08/29 Take -/+4V test data trigger on Q1-4.
2011/08/30 Take test data trigger on Q1-3.
2011/08/31 Take data
2011/09/01 Take data
2011/09/02 Take data
2011/09/03 Take data
2011/09/04 Take data
2011/09/05 Take data
2011/09/06 Heating power test, commence warm up.
2011/09/07 Remove tower, disassemble tower, electrical check.

Run 15

Run Det Det Type Source Purpose
15 G16K iZIPv4 none iZIP stability test.
2011/07/13 Assemble tower, electrical check, install tower, electrical check, disassemble tower.
2011/07/14 Assemble tower, electrical check, install tower.
2011/07/15
2011/07/16
2011/07/17
2011/07/18 Take data
2011/07/19 Take data
2011/07/20 Take data
2011/07/21 Take data
2011/07/22 Take data
2011/07/23 Take data
2011/07/24 Take data
2011/07/25 Take data
2011/07/26 Take data
2011/07/27 Take data

Run 14

Run Det Det Type Source Purpose
14 G19N iZIPv4.4 2 x Am-241 iZIP stability test.
2011/06/29 Assemble tower, electrical check, install tower.
2011/06/30 Flush IVC with nitrogen, clean cold traps, leak check, raise dewar, leak check, LN2 transfer.
2011/07/01 Blow out LN2, pump transfer stick, fill cold trap, first helium transfer, flash & bake detector.
2011/07/02 Tune phonon channels.
2011/07/03 Tune phonon channels, warm up fridge to 4.2 K, pump on IVC to expunge helium.
2011/07/04 Helium transfer, cryoclean mixture, start 1 K pot, condense mixture.
2011/07/05
2011/07/06
2011/07/07
2011/07/08
2011/07/09
2011/07/10
2011/07/11
2011/07/12
2011/07/13

Run 13

Run Det Det Type Source Purpose
13 G102 100mm 4Q R&D Detector Four Am-241 on electrode side Second 100 mm crystal test.
2011/05/25 Unpack crystal, detector level continuity check, accelerometer data.
2011/06/07 Assemble tower, electrical check, install tower, electrical check.
2011/06/08 Leak check, raise dewar, LN2 transfer, cryoclean mixture.
2011/06/09 Throughput test, leak check, blow out LN2, leak check, electrical check, LHe transfer, condense mixture, electrical check, circulate mixture.
2011/06/10
2011/06/11
2011/06/12
2011/06/13
2011/06/14
2011/06/15
2011/06/16
2011/06/17
2011/06/18
2011/06/19
2011/06/20
2011/06/21
2011/06/23
2011/06/24
2011/06/25
2011/06/26
2011/06/27
2011/06/28
2011/06/29 End of run, warm up fridge.

Run 12

Run Det Det Type Source Purpose
12 G42 iZIPv4 Two Am-241 First test of iZIP performance in K100 setup.
2011/04/21 Cryoclean mixture.
2011/04/22 Cryoclean mixture, assemble tower
2011/04/23 Crycoclean mixture, tower level continuity checks, install tower, electrical check, evacuate IVC.
2011/04/24 Cryoclean mixture, leak check, evacuate and raise dewar, leak check, transfer nitrogen.
2011/04/25 Cryoclean mixture, blow out LN2, leak check, throughput test, leak check, first LHe transfer.
2011/04/26 Clean N2 cold trap 2, cryoclean mixture, start 1 K pot, condense mixture, electrical check.
2011/04/27 Circulate mixture, flash detector, second LHe transfer, DAQ issues.
2011/04/28 Flash detector, DAQ issues, take data
2011/04/29 Flash detector, DAQ issues, LHe transfer.
2011/04/30 Flash detector, DAQ issues, take data
2011/05/01 Flash detector, LHe transfer, analyse charge-only Am-241 data.
2011/05/02 Take data, flash detector, data reduction issues, DAQ issues.
2011/05/03 Flash detector, take data, LHe transfer.
2011/05/04 Flash detector, take data, analyse iZIP format data.
2011/05/05 Flash detector, take data, analyse iZIP format data.
2011/05/06 LHe transfer.
2011/05/07 Blockage sleuthing, pump mixture into dump and recondense, start circulation, LHe transfer, clean helium cold trap.
2011/05/08 Flash detector, turn still heater on, take data.
2011/05/09 Flash detector, LHe transfer, phonon noise PSDs.
2011/05/10 Take data, flash detector, analyse data for neutralisation.
2011/05/11 Flash detector, take data, analyse data.
2011/05/12 Take data, analyse data, flash & bake detector.
2011/05/13 LHe transfer, take data.
2011/05/14 Flash detector, LHe transfer, analyse data, take data.
2011/05/15 DAQ issues, analyse data.
2011/05/16 DAQ issues, LHe transfer.
2011/05/17 Take data, tune phonon channels, LHe transfer, analyse data.
2011/05/18 Tune phonon channels.
2011/05/19 Take data, analyse data.
2011/05/20 LHe transfer.
2011/05/21 Take data.
2011/05/22 Analyse data, take data.
2011/05/23 LHe transfer, analyse data.
2011/05/24 Take data, LHe transfer.
2011/05/25 Take data.
2011/05/26 Take data, LHe transfer.
2011/05/27 Take data, DAQ issues.
2011/05/28 Take data, DAQ issues.
2011/05/29 Take data, analyse data.
2011/05/30 Take data, LHe transfer.
2011/05/31
2011/06/01
2011/06/02
2011/06/03
2011/06/04
2011/06/05
2011/06/06
2011/06/10
2011/06/13 Six Hour run. 07110605_1721

Run 11

Run Det Det Type Source Purpose
11 G101 100 mm Crystal Four Am-241 on electrode side First 100 mm crystal test.
2011/02/26 Procedure for unpacking crystal, accelerometer data
2011/03/07 Clean Cu parts, remove tower and disassemble, reassemble with 100 mm detector, issue with Schuba extender plugs
2011/03/08 Modify one Schuba extender plug, attach one side coax to tower
2011/03/09 Check LEDs
2011/03/10 Check LEDs
2011/03/11 Assemble tower, electrical check, install tower
2011/03/12 Install tower, electrical check, leak check, LN2 transfer, crycolean mixture
2011/03/13 Electrical check, throughput test
2011/03/14 Blow out LN2, leak check, throughput test, lower dewar, leak check, open IVC, replace indium seal, electrical check, close IVC, evacuate IVC
2011/03/15 Leak check, raise dewar, leak check, LN2 transfer, leak check mixture lines
2011/03/16 Leak check mixture lines, cryoclean mixture, throughput test, leak check, blow out LN2, leak check, first LHe transfer, start 1 K pot, condense mixture, circulate mixture, flash detector
2011/03/17 Take data
2011/03/18 Take data
2011/03/19 Take data
2011/03/20 Take data
2011/03/21 Take data
2011/03/22 Take data
2011/03/23 Take data
2011/03/24 Take data
2011/03/25 Take data
2011/03/26 Take data
2011/03/27 Take data
2011/03/28 Take data
2011/03/29 Take data
2011/03/30 Take data
2011/03/31 Take data
2011/04/01 Take data
2011/04/02 Take data
2011/04/03 Take data
2011/04/04 Take data
2011/04/05 Take data
2011/04/06 Take data
2011/04/07 Take data
2011/04/08 Take data
2011/04/09 Take data
2011/04/10 Take data
2011/04/11 Take data
2011/04/12 Take data
2011/04/13 Take data
2011/04/14 Take data
2011/04/15 Take data
2011/04/21 Remove tower and disassemble, visible crystal check, measure Am-241 source activities.
2011/05/05 Assemble shipping container.

Run 10

Run Det Det Type Source Purpose
10 G8&G9 CDMS II ZIP Two Am-241 on G9 Assess performance of neutron shield
2011/02/14 Clean N2 cold traps
2011/02/15 Throughput test, clean He cold trap, throughput test, cryoclean mixture
2011/02/16 Throughput test, clean N2 cold traps
2011/02/17 Cryoclean mixture, clean N2 cold traps
2011/02/18 Cryoclean mixture, clean N2 cold traps
2011/02/19 Cryoclean mixture
2011/02/20 Evacuate mixing chamber, LN2 transfer
2011/02/21 Cryoclean mixture, throughput test
2011/02/22 Cryoclean mixture, pump out N2 exchange gas
2011/02/23 Cryoclean mixture
2011/02/24 Electrical check, blow out LN2, leak check, first LHe transfer
2011/02/25 Cryoclean mixture, start 1 K pot, condense mixture, circulate mixture, flash detectors, second LHe transfer
2011/02/26 Battle relatively high tower temperature and DCRC noise
2011/02/27 Battle frozen DAQ issue, LHe transfer
2011/02/28 Battle frozen DAQ issue
2011/03/01 Battle frozen DAQ issue
2011/03/02 Battle frozen DAQ issue
2011/03/03 Battle frozen DAQ issue, tune phonon channels
2011/03/04 Take data
2011/03/05 Take data
2011/03/06 Take data, end of run, warm up fridge

Run 9

Run Det Det Type Source Purpose
9 G8&G9 CDMS II ZIP Two Am-241 on G9 Warm electronics tests in preparation for DCRCv3 & 100 mm crystal
2011/01/24 Pump IVC
2011/01/25 Leak check, electrical check, LN2 transfer
2011/01/26 Electrical check at 77 K, throughput test
2011/01/27 Clean N2 cold trap 1, throughput test, clean He cold trap, throughput test, blow out LN2, leak check, first LHe transfer
2011/01/28 Start 1 K pot, condense mixture
2011/01/29 Second LHe transfer, circulate mixture
2011/01/30 Circulate mixture, early DCRC test
2011/01/31 DCRC debugging, LHe transfer, circulate mixture
2011/02/01 DCRC debugging, circulate mixture
2011/02/02 DCRC debugging, take data
2011/02/03 End of run, warm up fridge

Run 8

Run Det Det Type Source Purpose
8 G8&G9 CDMS II ZIP Two Am-241 on G9 Cold hardware tests in preparation for DCRCv3 & 100 mm crystal
2010/12/07 Pump Dewar, clean Cu parts, install detectors, and tower electrical check.
2010/12/10 Install tower, electrical check.
2010/12/12 Leak check.
2010/12/13 Leak check.
2010/12/14 Leak check.
2010/12/15 Leak check.
2010/12/16 Electrical check at 77K, throughput test, blowing out N2, leak check, transfer He.
2010/12/17 Condensing and circulation, bake detector.
2010/12/18 Flash detector
2010/12/19 Tune phonon channels
2010/12/20 Turn detector
2010/12/21 More tuning, take data
2010/12/22 Take more data
2010/12/23 Take data

Run 7

Run Det Det Type Source Purpose
7 G41 1” IZIP Cold hardware tests in preparation for DCRCv3 & 100 mm crystal
Date Summary
2010/11/13 Pump dewar, install SQUET card, electrical check and evacuate IVC
2010/11/14 Leak check, raise Dewar, transfer liquid N2, fill N2 cold trap
2010/11/15 Throughput test, cryoclean, blow out liquid N2, transfer LHe
2010/11/16 Start circulation. DCRC charge channel test. Bake detector
2010/11/17 SQUID zapping and tuning function check. DAQ data format check.
2010/11/18 LED flashing function fix. SQUID modulation magnetic shield position dependence check. DAQ file format fix.
2010/11/19 Charge noise diagnosis
2010/11/20 Labview upgrade
2010/11/21 Debug DAQ
2010/11/22 Tweaking cdmsbats
2010/11/23 Tweaking cdmsbats
2010/11/24 Warm up fridge, end of run.
2010/11/29 Lower dewar and warm up IVC.

Run 7A (ABANDONED!)

Run Det Det Type Source Purpose
7 G41 1“ IZIP Cold hardware tests in preparation for DCRCv3 & 100 mm crystal
Date Summary
2010/10/13 Assemble tower, electrical check
2010/10/14 Install tower, pump IVC
2010/10/15 Leak check, electrical check
2010/10/16 Open IVC, electrical check
2010/10/17 Electrical check, seal and evacuate IVC

Run 6

Run Det Det Type Source Purpose
6 G41 1” IZIP Measure Tc's of phonon channels on DIB2, A2, B2, C2, and D2
Date Summary
2010/08/09 Dropped Dewar, IVC T=241K, blow air to IVC and bath, and wait IVC to warm up
2010/08/10 Opened IVC, took out tower, removed Cu tape from 1 Am-241 source, put G41 and Am-241 source on the tower, electrical check, pump the Dewar
2010/08/11 Install tower, electrical check, leak check, raise dewar, transfer liquid N2
2010/08/12 Blow out liquid N2, leak check, throughput test; a leak of 4.2cc/s is found between IVC and He bath
2010/08/13 Hunt the leak between the IVC and the bath
2010/08/14 Leak check and transfer liquid N2
2010/08/15 Leak check and transfer liquid Helium
2010/08/16 Start circulation
2010/08/17 Pulse, Rn, Tc, Ic measurements

Run 5

Installed 4“ can. Put 2 Am-241 sources and detector G9 together.

Date Run # Subject
2010/07/21 5 Pump Dewar, cryoclean mixture, order liquid N2
2010/07/22 5 Assemble tower, electrical check, install tower, electrical check, pump IVC
2010/07/23 5 Leak check, raise Dewar, transfer liquid N2, fill N2 cold trap
2010/07/24 5 Fill N2 cold trap
2010/07/25 5 Electrical check at 77K, throughput test, blow N2 out, transfer liquid He
2010/07/26 5 Condensing and circulating mixture, setting SQUID, baking detector overnight
2010/07/27 5 Tune SQUID from DCRC v2 (didn't work). Take pulse data using DCRC v1
2010/07/28 5 Overnight Am-241 run
2010/07/29 5 Analyse overnight Am-241 run, take Cf-252 data to test effectiveness of neutron shield
2010/07/30 5 Take Ba-133 data
2010/07/31 5 Overnight Ba-133 run and analysis

Run 4

Replaced Qi gate wire in the longest sidecoax with a low noise coaxial cable (5.6” with 30pF/ft). Test the coaxial cable noise performance.

Date Run # Subject
2010/06/11 4 Blow out N2, electrical check at 77K, throughput test, transfer liquid He
2010/06/12 4 Start circulation
2010/06/13 4 Circulation stopped possibly because of an overwhelming still heating power. Restarted circulation. Transfer liquid He
2010/06/14 4 Measure charge noise
2010/06/15 4 Measure charge noise
2010/06/16 4 Measure charge noise
2010/06/17 4 Measure charge noise

Run 3

Test with DCRC v2 and the detector used in Run 2 (G9 or T1Z5)

Date Run # Subject
2010/04/29 3 Pumping IVC
2010/04/30 3 Electrical check, cryoclean mixture
2010/05/01 3 Leakcheck, transfer liquid N2
2010/05/02 3 Fridge at 77K
2010/05/03 3 Electrical check at 77K, blow out N2, leak check, throughput test, transfer liquid He
2010/05/04 3 Start circulation, setup analysis package, bake detector over night
2010/05/05 3
2010/05/06 3 Calibration data, background data, charge only
2010/05/07 3 Charge only calibration data. Test functions of DCRC v2
2010/05/08 3 Bake detector
2010/05/09 3 Bake detector
2010/05/10 3 Calibrate DCRC v2
2010/05/11 3 IbIs
2010/05/12 3 Debug DCRC control vi
2010/05/13 3 Take data with DCRC v1
2010/05/14 3 Work on the phonon channels of DCRC v2
2010/05/15 3 Work on the phonon channels of DCRC v2
2010/05/16 3 Take 133Ba data with v1

Run 2

Added 600 mK heat sink to the tower and a thermometer on the detector housing.

Date Run # Subject
2010/02/11 2 Mounted thermometer, tower; electrical check; closed fridge.
2010/02/12 2 A leak found on the IVC valve. All four leads of the new thermometer shorted to fridge.
2010/02/15 2 Cleaned and greased IVC valve and put it back. A leak of response time ~2min found on NW50 feed through.
2010/02/16 2 IVC valve fixed. Open IVC and fix thermometer wire.
2010/02/17 2 Close IVC and leak check again, pump Dewar, cryoclean mixture.
2010/02/18 2 Raise Dewar, clean mixture, order LN2, LHe.
2010/02/19 2 Leak check, transfer LN2.
2010/02/20 2 Electrical check at 77K (result), pump out N2 exchange gas.
2010/02/21 2 Transfer LHe, cool down to 4.2K.
2010/02/22 2 Start circulation. Measure Tc
2010/02/23 2 Measure Ic
2010/02/24 2 Measure Ic
2010/02/25 2 Measure Ic
2010/02/26 2 IbIs measurement
2010/03/01 2 Debug DAQ
2010/03/02 2 Jeter did a fix on lookback time issue. BatRoot installation not complete
2010/03/03 2 Debug DAQ
2010/03/04 2 Debug DAQ
2010/03/12 2 Flashing and taking data
2010/03/13 2 Flashing and taking data
2010/03/14 2 Flashing and taking data
2010/03/15 2 Flashing and taking data
2010/03/16 2 Flashing and taking data
2010/03/17 2 Flashing and taking data

Run 1

Date Run # Subject
2009/11/09 1 SQUID tuning. SQUIDs A and D have modulation depth ~250mV; B and C have modulation depth ~500mV. D seemed have trapped flux which can not be removed by zapping. Plan to try zapping manually from the breakout box without DCRC.
2009/11/10 1 Still power optimization. The optimal still power is or close to 6 mW. A stable base temperature of 36.5 mK with the detector powered up is obtained. P1=0.18mBar, 1K pot=1.62K, P2=12mBar. Also tried IbIs but didn't work out.
2009/11/11 1 Noise spectrum measurement with “0” and the 1480 uA QET biases.
2009/11/12 1 IbIs measurement at base temperature (36.5mK).
2009/11/18 1 Noise debugging
2009/11/19 1 Noise debugging
2009/11/20 1 Noise debugging
2009/11/30 1 Ic and noise measurements
2009/12/01 1 Ic and noise measurements
2009/12/02 1 Noise measurements
2009/12/03 1 Noise measurements
2009/12/04 1 Noise measurements
2009/12/07 1 Noise measurements
2009/12/08 1 Charge noise measurements and LED flashing
2009/12/09 1 LED flashing.
2009/12/10 1 Take pulse data.
2009/12/11 1 Calibrate DCRC.
2009/12/22 1 Check DCRC and software.