2011/10/24

1345	Tower temperature 78.9 K. Start pumping out N2 exchange gas.
1620	Fill N2 cold trap full.
1632	Resistance check at 77K. The standard check out was OK. QETB-QETC: 350 Ohm, QETB-QETD: 5kOhm, QETC-QETD: 5kOhm.

Qo(DIB1)-QETB 9.9 nS
Qo(DIB1)-QETC 9.9 nS
Qo(DIB1)-QETD 9.8 nS

Qi(DIB1)-QETB 9.9 nS
Qi(DIB1)-QETC 9.7 nS
Qi(DIB1)-QETD 9.6 nS

Qi(DIB2)-QETB 9.5 nS
Qi(DIB2)-QETC 9.4 nS
Qi(DIB2)-QETD 9.4 nS

Qo(DIB2)-QETB 9.5 nS
Qo(DIB2)-QETC 9.5 nS
Qo(DIB2)-QETD 9.4 nS

1740	Start blowing out nitrogen.
1840	Nitrogen is out of main bath. Close helium supply.
1950	Conduct throughput test: 45 mbar/min.
2110	Fill IVC with 0.1 mbar He-4 exchange gas.
	Start helium transfer.
2245	Pump out exchange gas at mixing chamber temperature 10 K.
2330	Mixing chamber temperature 4.28 K. Conduct electrical check: no problems.

Cooldown checkout sheet (rev C SQUET)
Detector:	G102 DIB1		BH:			Stripline:	19
SC:	ZB1-4-8		300 K			80K			LHe
Face:	2		Date	2011-10-22		Date	2011-10-24		Date	2011-10-24
SQUET:	ZC23		Who	JZ & HC		Who	JZ		Who	HC & AC
Signal	Pos. lead	Gnd lead	Nominal	Actual	Chassis	Nominal	Actual	Chassis	Nominal	Actual	Chassis
					(Gnd lead)			(Gnd lead)			(Gnd lead)
					Nominal:			Nominal:			Nominal:
					< 0.1 nS			< 0.1 nS			< 0.1 nS
Phonon
SQUID bias A/Ret	4	20	3 - 5 k	4.4	OK	1 - 2 k	1.6	OK	80 - 140	101	OK
SQUID bias B/Ret	19	34		5	OK		2	OK	80 - 140	89	OK
SQUID bias C/Ret	8	24		4.6	OK		1.7	OK	80 - 140	99	OK
SQUID bias D/Ret	23	39		4.3	OK		1.6	OK	80 - 140	89	OK

Feedback A/Ret	37	21	15 - 25 k	18	OK	9 - 13 k	7.3	OK	1.0 - 1.3 k	1.28	OK
Feedback B/Ret	2	18		20	OK		8.2	OK	1.0 - 1.3 k	1.28	OK
Feedback C/Ret	41	25		19	OK		7.6	OK	1.0 - 1.3 k	1.27	OK
Feedback D/Ret	22	6		18	OK		7	OK	1.0 - 1.3 k	1.27	OK

QET A/Ret	3	1, 13, 14, 17, 32	60 - 80	110,96,86,87,86	OK	30 - 40	70,62,46,49,47	OK	20 - 30	43,38,28,31,28	OK
QET B/Ret	35	29, 33, 47, 48		86,86,89,86	OK		46,46,49,46	OK	20 - 30	27,27,31,27	OK
QET C/Ret	7	5, 9, 10, 28		84,85,74,84	OK		44,44,34,44	OK	20 - 30	27,27,16,26	OK
QET D/Ret	38	36, 40, 43, 44		89,84,84,84	OK		49,45,44,45	OK	20 - 30	32,27,26,27	OK

Charge
FET heater +/-	45	46	1.0 - 1.1 k	1.068	OK	1.0 - 1.1 k	1.044	OK	1.0 - 1.1 k	1.25	OK

Qi bias/QET Ret	15		24 - 26 nS	39 MOhm	OK	< 1 nS	OK	OK	<1 nS	OK	OK
Qo bias/QET Ret	11			39 MOhm	OK		OK	OK	<1 nS	OK	OK

Qi feedback/Drain/Source	50	16, 31	15 - 17 nS	44 MOhm	OK	6 - 8 nS	50MOhm	OK	<1 nS	55 MOhm	OK
Qo feedback/Drain/Source	30	12, 27		44 MOhm	OK		50MOhm	OK	<1 nS	54 MOhm	OK

Qi drain	16	chassis	< 0.1 nS	–	OK	< 0.1 nS	–	OK	<0.1 nS	–	OK
Qo drain	12	chassis		–	OK		–	OK	<0.1 nS	–	OK
Qi source	31	chassis		–	OK		–	OK	<0.1 nS	–	OK
Qo source	27	chassis		–	OK		–	OK	<0.1 nS	–	OK

FET Tsense +/FET heater-	49	46	0.6 - 0.7 V	0.723	OK	0.9 - 1.0 V	1.092	OK	—		OK
LED 1	42	chassis	1.0 - 1.1 V	1.139	–	1.2 - 1.5 V	1.416	–	—		–
LED 2	26	chassis		1.128	–		1.407	–	—		–

Cooldown checkout sheet (rev C SQUET)
Detector:	G102 DIB2		BH:			Stripline:	20
SC:	ZB1-4-6		300 K			LN			LHe
Face:	5		Date	2011-10-22		Date	2011-10-24		Date	2011-10-24
SQUET:	ZC70		Who	JZ & HC		Who	JZ		Who	HC & AC
Signal	Pos. lead	Gnd lead	Nominal	Actual	Chassis	Nominal	Actual	Chassis	Nominal	Actual	Chassis
					(Gnd lead)			(Gnd lead)			(Gnd lead)
					Nominal:			Nominal:			Nominal:
					< 0.1 nS			< 0.1 nS			< 0.1 nS
Phonon
SQUID bias A/Ret	4	20	3 - 5 k	4.9	OK	1 - 2 k	1.9	OK	80 - 140	95	OK
SQUID bias B/Ret	19	34		4.4	OK		1.7	OK	80 - 140	100	OK
SQUID bias C/Ret	8	24		4.7	OK		1.8	OK	80 - 140	92	OK
SQUID bias D/Ret	23	39		5.2	OK		2.1	OK	80 - 140	91	OK

Feedback A/Ret	37	21	15 - 25 k	29	OK	9 - 13 k	14.9	OK	1.0 - 1.3 k	1.26	OK
Feedback B/Ret	2	18		25	OK		9.2	OK	1.0 - 1.3 k	1.26	OK
Feedback C/Ret	41	25		28	OK		14.1	OK	1.0 - 1.3 k	1.27	OK
Feedback D/Ret	22	6		34	OK		17.4	OK	1.0 - 1.3 k	1.25	OK

QET A/Ret	3	1, 13, 14, 17, 32	60 - 80	104,91,80,83,80	OK	30 - 40	62,55,44,47,44	OK	20 - 30	40,32,21,24,21	OK
QET B/Ret	35	29, 33, 47, 48		77,77,80,77	OK		38,38,41,38	OK	20 - 30	21,21,25,21	OK
QET C/Ret	7	5, 9, 10, 28		76,76,69,76	OK		40,41,33,40	OK	20 - 30	19,19,12,19	OK
QET D/Ret	38	36, 40, 43, 44		85,80,80,80	OK		48,44,44,44	OK	20 - 30	26,21,21,21	OK

Charge
FET heater +/-	45	46	1.0 - 1.1 k	1.06	OK	1.0 - 1.1 k	1.04	OK	1.0 - 1.1 k	1.23	OK

Qi bias/QET Ret	15		24 - 26 nS	40 MOhm	OK	< 1 nS	OK	OK	<1 nS	OK	OK
Qo bias/QET Ret	11			39 MOhm	OK		OK	OK	<1 nS	OK	OK

Qi feedback/Drain/Source	50	16, 31	15 - 17 nS	43 MOhm	OK	6 - 8 nS	49MOhm	OK	<1 nS	54 MOhm	OK
Qo feedback/Drain/Source	30	12, 27		43 MOhm	OK		49MOhm	OK	<1 nS	53 MOhm	OK

Qi drain	16	chassis	< 0.1 nS	–	OK	< 0.1 nS	–	OK	<0.1 nS	–	OK
Qo drain	12	chassis		–	OK		–	OK	<0.1 nS	–	OK
Qi source	31	chassis		–	OK		–	OK	<0.1 nS	–	OK
Qo source	27	chassis		–	OK		–	OK	<0.1 nS	–	OK

FET Tsense +/FET heater-	49	46	0.6 - 0.7 V	open	OK	0.9 - 1.0 V	open	OK	—		OK
LED 1	42	chassis	1.0 - 1.1 V	1.137	–	1.2 - 1.5 V	1.416	–	—		–
LED 2	26	chassis		1.127	–		1.407	–	—		–

2335	Perform conductivity check at 4.2 K.

Qo(DIB1)-QETB <.1 nS
Qo(DIB1)-QETC <.1 nS
Qo(DIB1)-QETD <.1 nS

Qi(DIB1)-QETB <.1 nS
Qi(DIB1)-QETC <.1 nS
Qi(DIB1)-QETD <.1 nS

Qi(DIB2)-QETB <.1 nS
Qi(DIB2)-QETC <.1 nS
Qi(DIB2)-QETD <.1 nS

Qo(DIB2)-QETB <.2 nS
Qo(DIB2)-QETC <.2 nS
Qo(DIB2)-QETD <.2 nS

2350	Helium liquid level 89.9%. Stop helium transfer.
2355	Fill N2 cold trap full.
	Start cryocleaning mixture through nitrogen cold trap 2.