2012/07/24

2012/07/24

0855	Filled LN2 cold trap.
0925	Fed Cricket 3 pellets.
1215	Begin LHe transfer (3.9%).
1222	Stopped data taking, but it was during 0V collection mode and it was going to flash after. Started flashing detector via detector control vi.
1315	End LHe transfer (86.2%).
1805	Filled LN2 cold trap.
1805	Fed Cricket 4 pellets.

DCRC 31
  P gain: 20 x 4 x [1-7]
  Qi 0x207e 0.2mV
  Qo 0x2081 0.5mV

2015	ZAP SQUIDs on DIB1 and DIB2 twice.
2044	Could not power up or communicate with DCRC32 through the switch with a regular cable between them. Replace the regular Ethernet cable with the crossover cable and the problem disappeared.
2129	Zapped all SQUIDs twice after cycling the power.
2140	DCRC32 looked fine after loading the settings. DCRC33 seemed to have a lot trapped flux. Zap SQUIDs on DCRC33 twice in a row.
2334	Started taking data 07120724_2334_F0001. DIB1/DCRC33=+2V, DIB2/DCRC32=-2V. Trace length 3.2768ms. Pre-trigger 400us. Data/flash/cooldown = 2hour/6s/20min. Will take DIB1/2=-/+2V, +/-4V, -/+4V, +/-6V, -/+6V. With Ba-133 source. QET bias as in 20120723

Data Set 07120724_0011 with Ba-133 & Am-241 and DIB1 -2 V, DIB2 +2 V

Figure 1: Qi and Qo spectra for zip 1 and zip 2 (no cross talk). Bulk, Qi and χ squared cuts.

Figure 2: Qsum spectra. Qi and χ squared cuts.

Figure 3: Qsum vs Event Time. Qi and χ squared cuts.

Figure 4: χ Squared vs. Qsum. Qi cut.

Data Set 07120724_0232 with Ba-133 & Am-241 and DIB1 +4 V, DIB2 -4 V

Figure 5: Qi and Qo spectra for zip 1 and zip 2 (no cross talk). Bulk, Qi and χ squared cuts.

Figure 6: Qsum spectra. Qi and χ squared cuts.

Figure 7: Qsum vs Event Time. Qi and χ squared cuts.

Figure 8: χ Squared vs. Qsum. Qi cut.

Data Set 07120724_0454 with Ba-133 & Am-241 and DIB1 -4 V, DIB2 +4 V

Figure 9: Qi and Qo spectra for zip 1 and zip 2 (no cross talk). Bulk, Qi and χ squared cuts.

Figure 10: Qsum spectra. Qi and χ squared cuts.

Figure 11: Qsum vs Event Time. Qi and χ squared cuts.

Figure 12: χ Squared vs. Qsum. Qi cut.

Data Set 07120724_0716 with Ba-133 & Am-241 and DIB1 +6 V, DIB2 -6 V

Figure 13: Qi and Qo spectra for zip 1 and zip 2 (no cross talk). Bulk, Qi and χ squared cuts.

Figure 14: Qsum spectra. Qi and χ squared cuts.

Figure 15: Qsum vs Event Time. Qi and χ squared cuts.

Figure 16: χ Squared vs. Qsum. Qi cut.

Data Set 07120724_0938 with Ba-133 & Am-241 and DIB1 -6 V, DIB2 +6 V

An error occurred for this data set where Qi and Qo died for Zip 2. This can be seen clearly in Figure 18. This did not occur for any of the other voltage biases.

Figure 17:Qi and Qo spectra for zip 1 and zip 2 (no cross talk). Bulk cut.

Figure 18: Qsum and Qpart spectra. Bulk cut.

A look at the raw pulses verifies that this is not just an issue with the ROOT code. Notice that Qi and Qo are present in Zip 1, but not in Zip 2. This is consistent in the other events.

Figure 19

Data Set 07120724_2334 with Ba-133 & Am-241 and DIB1 +2 V, DIB2 -2 V

Figure 1: Qi and Qo vs Event Time for zip 1 and zip 2 (no cross talk). Bulk, Qi and χ squared cuts.

Figure 2: Qsum spectra. Qi and χ squared cuts.

Figure 3: χ Squared vs. Qsum. Qi cut.

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