Dark testing results for wafer 8.2.0

• PB_8.2.0_netanal_18Nov2009.pdf: NA with higher carrier amp and demod gain settings. 22 uH fitting
• PB_8.2.0_boloIV_Nov13.pdf: IV curves for the most detectors
• PB_8.2.0_etf.pdf: ETF analysis.
• Nov14Tc.tar.gz: Archive of Tc plots for all bolometers
• spectaData.tar.gz: Archive of spectra data for some combs
• spectraPlots.tar.gz: Archive of spectra plots for some combs

Bolo	A	B	C	D	E	F	G	H
1	460 - 470	460 - 470	460 - 470	460 - 470	450 - 460	445 - 465	-	450 - 465
2	470 - 480	470 - 480	475 - 485	467 - 477	440 - 460	445 - 460	-	445 - 460
3	460 - 470	460 - 470	460 - 470	458 - 468	464 - 470	460 - 470	-	460 - 470
4	460 - 470	460 - 470	460 - 470	460 - 470	453 - 463	450 - 465	-	450 - 465
5	455 - 465	455 - 465	455 - 465	455 - 465	445 - 460	445 - 460	-	445 - 460
6	455 - 470	455 - 470	455 - 470	455 - 465	x	x	-	-
7	x	x	x	-	-	x	-	-
8	x	-	-	-	-	-	-	-

Bolo	Q	R	S	T	U	V	W	X
1	450 - 460	450 - 460	445 - 460	445 - 470	455 - 465	445 - 465	455 - 465	455 - 465
2	445 - 460	445 - 460	440 - 460	440 - 477	450 - 460	450 - 460	450 - 460	450 - 462
3	450 - 460	450 - 460	445 - 460	450 - 468	470 - 480	470 - 480	468 - 480	468 - 480
4	455 - 465	455 - 465	455 - 465	450 - 470	465 - 475	465 - 475	465 - 475	465 - 475
5	450 - 460	450 - 465	450 - 460	450 - 465	462 - 472	465 - 470	460 - 470	465 - 470
6	-	450 - 465	450 - 470	450 - 470	462 - 470	-	-	460 - 470
7	-	-	-	-	435 - 450	-	-	435 - 450
8	-	-	-	-	-	-	-	435 - 440

Notes: There seem to be some problems with matplot lib fitting properly, but instead of taking the time to run all that down I changed the HWM by hand to make the frequencies for bolometers F6, H3 and Q4 closer to where I think the resonance should be. This was very quick and dirty so we should expect some issues with those bolometers.

The combs missing in ETF are from bolometers that were unable to renull after the measurement. If this happened on the final bolometer then it wasn't a problem, but if it was not the last bolometer the entire comb was thrown out. Later I can go back and try to process the data as if there were fewer bolometers on the comb.

Nov14Tc.tar.gz has .png and .eps plots for each bolometer's transition. In the tables '-' means there is no bolometer, 'x' means that the data returned was bad (reason unknown) and there is no Tc measured. All the temperatures are in mK. The values are my estimates by eye from the plots.

spectaData.tar.gz contains pickle files with data from Mike's specAnal function (part of ucb.py). In the files 'xdata' is the frequency in Hz and 'ydata' is the average ADC counts for 100 points of data at that frequency. All data was streamed at FIR3. A note on the data: The 'ydata' for D, F, Q, and U take IQ measurements of 100 points, average I and Q separately and then calculate the magnitude. This really is only sensitive to the signal at the demodulator frequency. B, E, H, R, and V take a single demodulator measurement, calculate the rms of the of the entire 100 points and return that. This is also sensitive to the signals in the readout bandwidth.

spectaPlots.tar.gz contains .png files for all the combs with spectrum data. These are B, D, E, F, H, Q, R, U, and V.

Tc data was taken with a nuller gain=0, amplitude 0.1 and demod gain=1. No carriers were harmed, or used, in the taking of this data. Tcs are given in mK.

-- PeterHyland - 11 Nov 2009

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This topic: BolometerTesting > WebHome > PolarBear > 2009_PB_Bolo820 Topic revision: r9 - 2010-01-06 - PeterHyland

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