2016/01/14 (Thursday)

	Setup: iZIP mode, DIB1/2/3 → cables → 3.2 MHz filters → DCRC55/33/50
	Taking Y-88 data overnight. Last flash at 08:15
0915	Tower/MC(H35)/MC sensor/Cold Plate = 31.8/26.3/41.0/162 mK, Still = 1.28 K / 0.12 mbar, G1/G2 = 160/165 mbar, 1K Pot = 1.73 K / 19 mbar, Main bath = 56.7%
0920	Fill LN2 cold trap Dewar.
0955	Measuring event rate from strong Y-88 source:
	method: use pulse-viewing GUI, set N Beginning Randoms to 600, Rate 10 Hz (for 1 minute of randoms). Set trace length to 100 ms or 10 ms. Count pulses visible in several traces.
	With weaker Y source still present from last night: 98 Hz (counted for 0.5 seconds)
	With all external sources removed: 76 Hz (counted for 1 second)
	Place strong Y source behind fridge (West side) on stool, near shield. Three lead bricks to form small castle. Note: no lead beneath source. Source is about 33 cm below detector level.
	With strong Y source present, no extra lead between source and fridge shield: 840 Hz (counted for 50 ms). This implies 94% pileup for 3.2768 ms traces.
	With strong Y source and additional 2“ of lead: 164 Hz (counted for 0.25 s). (42% pileup)
	With strong Y source and additional 4” of lead: 104 Hz (counted for 0.25 s). (29% pileup)

1035	Place strong 88-Y source in safe.
1040	Place (usual) 88-Y source inside shield ~6“ down from top.
1100	Start 2 hours of 30min 88-Y series at +4/-4V with FG=5/2/5, OG=3, with 1000 initial randoms, 1000 ending randoms, 30s flash and 25 minute cooldown before series. Trigger on DIB1 phA with threshold of 30ADC bins.
1305	Main bath = 51.2%
1305	Commence LHe transfer (49.2%).
1350	Cease LHe transfer (85.8%).
1400	No noticeable low-f noise in DIB1 phonons with bath at 86.0%
1440	Slight low-f noise on DIBs 2&3 phonon channels with bath at 85.5%. Noise unnoticeable on the scale of pulses.
1450	Start 18 hours of 30min 88-Y series at -4/+4V with FG=5/2/5, OG=3, with 1000 initial randoms, 1000 ending randoms, 30s flash and 25 minute cooldown before series. Trigger on DIB1 phA with threshold of 30ADC bins.
1605	Stop data to fiddle with DCRCs and calibration settings for charge bias. Nothing actually implemented. Will do tomorrow.
1623	Start 16 hours of 30min 88-Y series at -4/+4V with FG=5/2/5, OG=3, with 1000 initial randoms, 1000 ending randoms, 30s flash and 25 minute cooldown before series. Trigger on DIB1 phA with threshold of 30ADC bins.
1625	Fill LN2 cold trap full.