GENERAL INFORMATION
- WEBDCS904 - inside cern local network; (login: testbeam pass: testbeam);
- tunnel + setting your browser;
- AD/DT [ns] - ActiveDelay [ns] / DeadTime [ns];
Parametors: febproto_cern_1; FEB_1112_18; SpillON=6500 SpillOFF=100.
| WEBDCS | run | THR [DACu] | HVeff [kV] | N trig | Veto | state | Position | comment |
|---|---|---|---|---|---|---|---|---|
| 1202 | 748312 | 500 | 7.4 | 3 | Yes | FEB_1112_18 | FEB12 - Internal close to Strip HR | |
| 1201 | 748309 | 500 | 7.4 | 3 | Yes | FEB_1112_18 | FEB11 - External close to Strip HR | |
| 1200 | 748266-748307 | 500 | Scan: TOP, BOT, BOTH | 3 | Yes | FEB_1112_18 | FEB12 - Middle close to Strip center | |
| 1194 | 748189-748210 | 495 | Scan: BOTH | 2 | Yes | ?? | ?? | |
Laurent and Christoph went Monday 01/04 ad performed following improvements:
1) Solder the connectors grounding top the strip PCB 2) Connected by tape the LV module to the cassette 3) Added wood below the chamber to avoid contact with table that is not grounded. 4) Realigned
| WEBDCS | run | THR [DACu] | HVeff [kV] | N trig | Veto | state | Position | comment |
|---|---|---|---|---|---|---|---|---|
| 1205 | 748432-443 | 503 | 6.9-7.9 | 2 | No | FEB_1112_27 | FEB12 - Internal close to HR | |
| 1206 | 748460-475 | 508 | 6.9-7.9 | 2 | No | FEB_1112_27 | FEB12 - Internal close to HR | |
| 1207 | 748485-491 | 513 | 6.9-7.9 | 2 | No | FEB_1112_27 | FEB12 - Internal close to HR | |
| 1208 | 748492-498 | 510 | 6.9-7.9 | 2 | No | FEB_1112_27 | FEB12 - Internal close to HR | |
| 1213 | 748524-530 | 513 | 6.9-7.9 | 2 | No | FEB_1112_27 | FEB12 - Moved 6 cm from internal. Closer to Center by 40 cm. | |
| 1214 | 513 | 6.9-7.9 | 2 | No | FEB_1112_27 | FEB12 - Moved 6 cm from internal. Closer to LR by 80 cm. | ||
5) Added condensators to stabilize the LV (Monday 07)
| 1216 | 748606-609 | 513 | 6.9-7.8 | 2 | No | FEB_1112_29 | FEB12 - Center. |
| 1217 | 748615-619 | 505 | 6.9-7.8 | 2 | No | FEB_1112_29 | FEB12 - Center. |
| 1218 | 748620-626 | 513 | 6.9-7.8 | 2 | Yes | FEB_1112_29 | FEB11 - Center. |
| 1219 | 74862… | 505 | 6.9-7.8 | 2 | Yes | FEB_1112_29 | FEB11 - Center. |
| 1220 | 74863… | 513 | 7.4 | 3 | Yes | FEB_1112_29 | FEB11 - Center. High stats, high precision |
5) Made shorter the HV cable after the filter (Thursday 11/04)
| 1222 | 748657-666 | 513 | 6.6-7.8 | 2 | Yes | FEB_1112_29, feb_proto_2 | FEB11 - Center. |
6) Added Yuri box using state FEB_1112_30
Lots of scans to be added there
7) Maxime realigned the TDC channels using 6BDac. Spoiled by mistake FEB_1112_30. Recreated state FEB_1112_35.
Unsucsessful attemps: For the state FEB_1112_36 all the even channels piedestals was moved up by 2 6BDac. This shall correspond to 6 DAQu. This shall make LR more sensible.
Second attempt: I used the following mask and built FEB_1112_37
cor12_1= [0 0 0 0 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 0 2 0 0 0 2 0]
trying to make sense of what I've seen in .xml files
12.1 <DAC6B>0 0 0 0 16 17 20 19 21 19 24 18 21 24 21 23 23 22 20 27 24 25 30 22 29 0 29 0 34 0 31 0 </DAC6B>
and in https://cms.wiki.ipnl.in2p3.fr/debug_febv1_1#mapping_correct_pour_32_cannaux
But when I scan the piedestals I see al channels that moved by 6 DAQu. I'm lost.
—
MAY LR-collebration
Chamber 90-52 =38 degree from the horizontal line. Middle ~1m of PCB from HR
FEB_1112_39 - all pedestals in same position. FEB_1112_40 - +6 DACu for LR channels.
749172 - thrscan from FEB_1112_39 calibration.
