P side N side Vi Nham Results (Raw data from May 13th, 2007)
Ladder position Low voltage power supply Low voltage power supply Biasing Voltage Leakage current comments Pside Nside comment
  Voltage (V) Current (A) Voltage (V) Current (A) Voltage (V) Current (I) Voltage (V) Current (A) (V) (ľA)        
                             
top 3 ladders sector 20 -2.2 1.7 2 0.45 -2.1 1.6 2 0.5 30 120 module 15P one Alice128 bad 4P one bad alice ok High voltage trip
1 -2.2 1.6 2 0.44 -2.2 1.6 2 0.47 50 45 Pside perfect, problem with the digital output on Nside : the most significant bit is oscillating Pside OK Nside OK  
2 -2.2 1.6 2 0.49 -2.2 1.66 2 0.48 30 800 modules ok (Pside and Nside), leakage current to high, HV coupling capacitors need to be changed 4P weird data ok High voltage trip
North 7 ladders sector 3 -2.2 1.45 2 0.45 -2.2 1.5 2 0.44 25 136 JTAG problem with 11P, 14P and 1N,. 11P OK OK high voltage trip
4 -2.2 1.6 2 0.46 -2.2 1.56 2 0.48 30 110 JTAG problem with 12P 12P OK ok  
5 -2.2 1.54 2 0.46 -2.2 1.58 2 0.45 30 106 JTAG problem with 1P OK OK  
6 -2.2 1.59 2 0.47 -2.2 0 2 0 30 91 Nside not responding, Pside OK OK Dead  
7 -2.2 1.65 2 0.5 -2.2 1.53 2 0.45 35 144 JTAG problem with 13N, Pside no data Dead Dead  
8 -2.2 0 2 0.02 -2.2 1.59 2 0.44 40 135 Pside ok at the begining, then datas are degrading. High current on the +2V : probably it comes from the output currrent of the ALICE128 output buffer. After waiting for a while, it is ok again and starts to degrade again OK, 8P noisy Noisy with pedestal variation  
9 -2.2 1.59 2 0.47 -2.2 1.6 2 0.45 50 174 power supply connector problem on Pside 7P with dead strips OK  
bottom 3 ladders sector 10 -2.2 1.67 2 0.54 -2.2 1.5 2 0.45 30 220 module 7N not responding with JTAG, biasing current to high 8P: pedestal value higher than 255, 4P pedestal value strange ok High voltage trip
11 -2.2 1.65 2 0.52 -2.2 1.58 2 0.49 40 72 module 9N not responding with JTAG OK ok  
12 -2.2 1.64 2 0.49 -2.2 1.59 2 0.46 40 77 good ladder OK OK  
South 7 ladders sector 13 -2.2 1.65 2 0.49 -2.2 1.6 2 0.46 30 240 Data problem with 6P, biasing current to high problem with 6P ok High voltage trip
14 -2.2 1.6 2 0.47 -2.2 1.44 2 0.44 30 180 JTAG problem with 15N and 16N. OK data problem with 15N (while OFF)  
15 -2.2 1.54 2 0.47 -2.2 1.6 2 0.47 30 125 HV and LV connection to be checked side P. Pedestal high with 16P Pside noisy ok  
16 -2.2 1.11 2 0.36 -2.2 1.49 2 0.43 30 173 JTAG problem with 4P, 5P, 7P, 8P, 12P, 13P, 1N, 10N. 4P, 7P, 8P, 13P OK, but no data from 12P 10N ok  
17 -2.2 1.52 2 0.46 -2.2 1.55 2 0.44 30 144 JTAG problem with 5P. HV connection to be checked. 5P forced (on May 16th) OK  
18 -2.2 1.6 2 0.46 -2.2 1.59 2 0.45 30 137 good ladder OK 11N dodgy  
19 -2.2 1.44 2 0.48 -2.2 1.64 2 0.42 30 174 JTAG problem with 13P. No data with 11P because power supply disconnected by latchup detection. OK 6N high pedestal, 11N noisy