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User name D.Wang/X.Deng
Log entry time 15:18:15 on December17,2009
Entry number 307675
keyword=Access work
halog_temp.html
left/right arm LeCroy 428F offset measurement on Dec. 17, 2009.
Left arm 4th module is used for tagger.
The bottom right output of each quad seems to be the capacitor-coupled one, whose offset is fixed to zero.
| module | quad | top left | . | top right | . | bottom left | . | bottom right | . |
| . | . | offset (mV) | used for | offset
(mV) | used for | offset (mV) | used for | offset (mV) | used for |
| 1 | 1 | 5 | gr1 TS->DHN | 5 | gr1 TS->DLN | 0 | . | 0 | . |
| 2 | 5 | gr2 TS->DHN | 5 | gr2 TS->DLN | 5 | . | 0 | . |
| 3 | 5 | gr3 TS->DHN | 5 | gr3 TS->DLN | 5 | . | 0 | . |
| 4 | -2 | gr4 TS->DHN | -2 | gr4 TS->DLN | -2 | . | 0 | . |
| 2 | 1 | 5 | gr5 TS->DHN | 0 | gr5 TS->DLN | 5 | . | 0 | . |
| 2 | 0 | gr6 TS->DHN | 0 | gr6 TS->DLN | 0 | . | 0 | . |
| 3 | 5 | gr1 PS->DMN | 0 | . | 5 | . | 0 | . |
| 4 | 10 | . | 0 | gr2 PS->DMN | 10 | . | 0 | . |
| 3 | 1 | 0 | gr3 PS->DMN | 0 | . | 0 | . | 0 | . |
| 2 | 0 | gr4 PS->DMN | 0 | . | 0 | . | 0 | . |
| 3 | -2 | gr5 PS->DMN | -2 | . | -2 | . | 0 | . |
| 4 | 0 | gr6 PS->DMN | 0 | . | 0 | . | 0 | . |
| 4. | 1 | . | . | . | . | . | . | . | . |
| 2 | . | . | . | . | . | . | . | . |
| 3 | . | . | . | . | . | . | . | . |
| 4 | . | . | . | . | . | . | . | . |
right arm leCroy 428F offset measurement. right arm 2nd and 5th modules are used for taggers.
| module | quad | top left | . | top right | . | bottom left | . | bottom right | . |
| . | . | offset (mV) | used for | offset (mV) | used for | offset (mV) | used for | offset (mV) | used for |
| 1 | 1 | 0 | gr5 TS->DMN | 0 | . | 0 | . | 0 | . |
| 2 | 0 | gr6 PS->DMN | 0 | . | 0 | . | 0 | . |
| 3 | 0 | gr7 PS->DMN | 0 | . | 0 | . | 0 | . |
| 4 | 0 | gr8 PS->DMN | 0 | . | 0 | . | 0 | . |
| 2 | 1 | 0 | tagger | 0 | tagger | 0 | . | 0 | . |
| 2 | -2 | tagger | -2 | tagger | -2 | tagger | -2 | tagger |
| 3 | -2 | tagger | -2 | tagger | -2 | tagger | -2 | tagger |
| 4 | -2 | tagger | -2 | tagger | -2 | tagger | -2 | tagger |
| 3 | 1 | -2 | gr1 TS->DLN | -2 | gr1 TS->DHN | -2 | . | -2 | . |
| 2 | -2 | gr2 TS->DHN | -2 | gr2 TS->DLN | -2 | . | -2 | . |
| 3 | -2 | gr3 TS->DHN | -2 | gr3 TS->DLN | -2 | . | -2 | . |
| 4 | -2 | gr4 TS->DHN | -2 | gr4 TS->DLN | -2 | not labled | -2 | T5 |
| 4 | 1 | -2 | gr5 TS->DLN | -2 | gr5 TS->DHN | -2 | . | -2 | . |
| 2 | -3 | gr6 TS->DLN | -3 | gr6 TS->DHN | -3 | . | -3 | . |
| 3 | -2 | gr7 TS->DLN | -2 | gr7 TS->DHN | -2 | . | -2 | . |
| 4 | -2 | gr8 TS->DLN | -2 | gr8 TS->DHN | -2 | . | -2 | . |
| 5 | 1 | 0 | tagger | 0 | tagger | 0 | tagger | 0 | tagger |
| 2 | . | . | . | . | . | . | . | . |
| 3 | . | . | . | . | . | . | . | . |
| 4 | . | . | . | . | . | . | . | . |
| 6 | 1 | 0 | . | 0 | gr1 PS->DMN | 0 | . | 0 | . |
| 2 | 0 | . | 0 | gr2 PS->DMN | 0 | . | 0 | . |
| 3 | 0 | . | 0 | gr3 PS->DMN | 0 | . | 0 | . |
| 4 | 0 | . | 0 | gr4 PS->DMN | 0 | . | 0 | . |
Did not measure block 2-4 offsets of the 5th module in right arm, since there are no inputs in these blocks.
The offset of the 3rd block of the 6th module on the right arm was -5mV when we measured it. We changed it 0mV.
Besides, we changed the threshold of discriminator high narrow on the left arm from -38mv to -50mv.