| 0056 | Taking data 07120217_0056_F0001. Q1-3 at -10V, Q4 at 0V; trigger on Q1-3 at 40 ADC bin. will take 2 series. Data/flash/cooldown = 30/0.1/20 min. Temperature 77.6mK. |
| | Will take Q1-3 at -6V, +6V, +10V; Q4 at 0V data with same settings after the above data. |
| | Will take Q1-4 at +10V; trigger on Q1-3 at 40ADC bin; 3 hour long run after the above data. |
| 0856 | Filled LN2 cold trap. |
| 0940 | DAQ error occurred after 4 series. +6V data wasn't taken yet. |
Data taken before the DAQ error
# Am241 & Ba133 all below
# Q1-3 at -10V, Q4 at 0V; trigger on Q1-3 at 40 ADC bin; Data/flash/cooldown = 30/0.1/20 min.
576M ./07120217_0056
582M ./07120217_0146
# Q1-3 at -6V, Q4 at 0V; trigger on Q1-3 at 40 ADC bin; Data/flash/cooldown = 30/0.1/20 min.
581M ./07120217_0241
575M ./07120217_0331
| 0948 | Found the two DCRC's were not synchronized. I'm not sure if the data taken last night have this problem. This may happen in the middle of a run and have caused the DAQ error. Need to check the data. |
| | Set high trigger threshold on both boards and they look synchronized. |
| 0951 | Taking 07120217_0951_F0001, +6V Ba-133 data with Q4 at 0V and trigger at Q1-3 at 40ADC bin |
| | Q4 pulses have both polarities. This will take much longer to process. |
| 1144 | DAQ error occurred again after +6V data. |
# Am241 & Ba133 all below
# Q1-3 at +6V, Q4 at 0V; trigger on Q1-3 at 40 ADC bin; Data/flash/cooldown = 30/0.1/20 min.
811M ./07120217_0951
817M ./07120217_1041
| 1149 | Rechecked synchronization, OK. |
| 1151 | Taking +10V data. |
| 1437 | 07120217_1336_F0011. Temperature rose up to 83mK between 13:48 and 14:12 |
# Am241 & Ba133 all below
# Q1-3 at +10V, Q4 at 0V; trigger on Q1-3 at 40 ADC bin; Data/flash/cooldown = 30/0.1/20 min.
801M ./07120217_1151
802M ./07120217_1241
# Q1-4 at +10V; trigger on Q1-3 at 40ADC bin; 3 hour long run
5.1G ./07120217_1336
| 1720 | Begin LHe transfer (12.1%). |
| 1815 | End LHe transfer (90.2%) |
| 1932 | Filled N2 cold trap. |
| 2234 | Checked timing link: OK. |
| 2247 | Taking data 07120217_2247_F0001. -7V Am-241 2 hour long run. Trigger on Q1-4 at 40 ADC bin. 1 series. Tower temperature 79.2mK. |
| | Will take 0V data/flash/cooldown = 120/0.1/20 min data right after the above series with out flashing. |
| | +7V 120 min; 0V data/flash/cooldown = 120/0.1/20 min. |
| | -10V 120 min; 0V data/flash/cooldown = 120/0.1/20 min. |
| | +10V 120 min; 0V data/flash/cooldown = 120/0.1/20 min. |
| To-Do list as of today's DMC meeting |
Bias detector for 2 hours, then take 0V data
Absolute calibration based on feedback capacitor
Take data at temperatures 400 mK and above, if possible
Take +7V, +10V with Am-241 only
Electrical check with the interface boards (Vuk's suggestion)