UMN CDMS Wiki archive
start › cdms › k100 › run_diary › 20110410

Table of Contents

2011/04/10

0039 Stop DAQ after 1hour run. I don't think the fridge can take any heat from flashing. I'll leave it like this. Disable charge polarity flipping.
1004 Without flashing, the fridge was running OK except 1K pot was a bit cold.
The spike is due to detector flashing.

1009 Open 1K pot a bit more. Pot temperature went up to 1.7 and drops slowly. I'll try to flash the detector.
1057 Flashed detector for 20min. Everything went OK. Stop the DAQ.
1205 Start to take data 07110410_1205_F0001. Calibrated -2V on Q1-4. Trigger: Q1(60ADC) OR Q2(36ADC) OR Q3(30ADC) OR Q4(30ADC); coincidence time 50us. Trace length 1024, lookback time 100us. DCRC30 on DIB1, ZIP2, master; DCRC33 on DIB2, ZIP1, slave. Take data 60min after 20min flashing. Tower T 61.7mK.
I forgot to stop the run after flashing. One more data set 07110410_1406 was taken for -2V bias.
1430 Filled N2 cold trap.
07110410_1611: 1 hour data at -3V after 20min flashing. 07110410_1814: 1 hour data at -4V after 20min flashing.
2043 Start -5V 1 hour run. This is the first run of automatic data taking. Will take -6, -7, -8, -1234, -4321 biases.
2051 Filled N2 cold trap. Turned off Helium level meter to avoid the labview error.

-2V 1 hour neutralization

Data:

07110410_1205
07110410_1406

Scipt

The cuts are defined as

  • cQ# = max([Q1, Q2, Q3, Q4], [], 2)==#
  • cQCchisq = cQ1chisq & cQ2chisq & cQ3chisq & cQ4chisq
  • cE1 = 15 < Q1;
  • cE2 = 15 < Q2;
  • cE3 = 10 < Q3;
  • cE4 = 20 < Q4;
  • cE = 50 < Qsum.

Plots

-3V 1 hour neutralization

Data:

07110410_1611

Script

Plots

-4V 1 hour neutralization

Data:

07110410_1814

Script

Plots

-5V 1 hour neutralization

Data:

07110410_2043

Script

Plots

-6 V 1 hour neutralization

Data:

07110410_2244

Script

Plots