Table of Contents
2011/05/12
| 0000 | Start autorun data series: hour-long; -2.5 V DIB1, +2.5 V DIB2; trace length 409.6 ns; trigger delay 100 μs; phonon channels locked but no QET bias set; charge-only. |
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| 0911 | Found an labview error occurred at 05:27 in the morning and the DAQ was stopped at 07110512_0443_F0008. Tower temperature 53.4mK. |
| 1410 | Fill N2 cold trap full. |
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| Data series taken overnight: 07110511_2353; 07110512_0105; 07110512_0218; 07110512_0330; 07110512_0443 (incomplete). |
Looking for Neutralisation
| Figure 1: First data series 07110511_2353. |
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| Figure 2: Second data series 07110512_0105. |
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| Figure 3: Third data series 07110512_0218. |
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| Figure 4: Fourth data series 07110512_0330. |
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| Figure 5: Final data series 07110512_0443. |
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Mean = 0.000517 ± 0.000044 (8.5%)
Standard deviation = 0.000098 (19% of mean)
| 2025 | Start flashing detector. Both LEDs on both DIBs on: 0.6 mA curent; 100 μs on; 2.5 ms off. |
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| Bring out Ba-133 source and place as close as possible to detector. This should help with baking. | |
| 2045 | Fridge is getting a little warm. Tower temperature is above 1 K. Stop flashing detector and increase LED off time to 5 ms. Commence flashing detector again. |
| 2050 | Tower temperature has fallen to around 700 mK and seems to have stabilised. Looks good. |