Channels to be fixed

In the table below are the channels we are currently working on.
ADC channel Drawer LED adc LED ratio preamp adc preamp ratio preliminary diagnosis
0_1_5 NW8 705 2.74 10297 4.24
0_2_1 NW7 -49 -0.13 682 0.28 broken preamp
0_5_3 NW5 748 3.43 10322 4.22
0_8_2 NW3 182 0.31 696 0.28 broken preamp
0_11_6 NW1 11 0.03 10400 4.21
1_5_3 NW13 745 4.97 10305 4.17
1_10_6 NW10 28 4.67 9799 4.12
1_11_5 NW9 630 1.81 10894 4.2
4_1_6 SW9 587 4.89 9819 4.13 hv low
4_1_5 SW9 565 4.56 9807 146.37 hv low
4_1_4 SW9 682 4.7 9676 3.9 hv low
4_4_4 SW11 422 4.31 9678 156.1
4_10_1 SW15 728 4.89 9996 4.19
5_1_5 SW1 2156 5.03 255 0.11 loose pulser controller cable
5_1_3 SW1 1379 4.79 263 0.11 loose pulser controller cable
5_1_1 SW1 2017 4.8 0 0 loose pulser controller cable
10_4_6 NE11 434 5.64 9395 4.05
11_1_5 NE1 56 0.08 10675 427
11_2_5 NE2 121 0.17 10533 87.78


The charts on this page represent our (relatively) current understanding of broken channels in the ICD. Channels can fail in 4 ways:
  1. The channel can have a mean ADC count < 750 in an LED run.
  2. The channel can have a mean ADC count < 750 in a preamp pulser run.
  3. The ratio of mean ADC in the LED run to reference LED run 216345 is less than 3.5.
  4. The ratio of mean ADC in the preamp pulser run to reference preamp pulser run 216711 is less than 3.5.
Each plot is labeled using run numbers in the form LED_preamppulser. The z-axis (color) is z=(cut-value)/cut. Thus a channel reporting 500 ADC counts would have a z value of .33 and a channel reporting a ratio of 3.0 would have a z value of .14. The closer to 0, the closer to passing the cut.
Since it can be difficult to see the x-axis labels, which are ADC crate_ADC card_Drawer ch., I have included a link to the .root file so you can zoom in as you like (click on the image).

*There is no preamp pulser data in this plot because the pulsers have broken.





jtorborg
Last modified: Tue May 16 09:44:24 CDT 2006