These are setting which are safe for the detectors. They may be not the optimal for operation. If the corresponding channel trips one should investigate what is the reason.
PDC-SCI
The HV is selected based on the energy loss in the scintillator. As of 2.2.2020 one has to look at the scope: sdaos19.acc.gsi.de (use a web browser to access it)
Channel mapping:
| Channel | Detector |
|---|---|
| ch1 | GTE1DI1P |
| ch2 | GHHDDI1P |
| ch3 | GTH1DI4P |
| ch4 | GHADDI1P |
| ch5 | GHTCDI1P |
| ch6 | GHTCDI2P |
| ch7 | GHTPDI1P |
General values:
| Parameter | Value |
|---|---|
| Iset | 1200 uA |
| Vset | negative, less than 1600 V |
| Ramp Up | 30 V/s |
| Ramp Down | 30 V/s |
| Trip Time | 500 ms |
PDC-IC
General values:
| Parameter | Value |
|---|---|
| Iset | 40 uA |
| Vset | negative, 1000 V |
| Ramp Up | 30 V/s |
| Ramp Down | 30 V/s |
| Trip Time | 500 ms |
PDC-SEM
General values:
| Parameter | Value |
|---|---|
| Iset | 40 uA |
| Vset | positive, 100 V |
| Ramp Up | 30 V/s |
| Ramp Down | 30 V/s |
| Trip Time | 500 ms |
BLM
These are calibrated with 137Cs gamma source. As of 2.2.2020 the voltages should be as follows (Note the over parameters too):
Calibration of HEST BLM: Sep-Oct 2023
| Det | Voltage | Date Time | Mean Cout Rate [Hz] | FWHM [Hz] | Imon[uA] |
|---|---|---|---|---|---|
| GTH4DL6LV | -1000.0 | 2023-07-13T14:09 | 2998.0 | 297.0 | 542.4 |
| GTH4DL7UV | -943.9 | 2023-07-13T14:22 | 3086.0 | 231.6 | 512.0 |
| GTH4DL8RV | -999.8 | 2023-07-13T14:36 | 3059.4 | 191.8 | 581.9 |
| GTV1DL1LV | -958.7 | 2023-07-13T14:42 | 2923.1 | 258.8 | 494.3 |
| GHTCDL0RV | -965.9 | 2023-07-13T14:49 | 2913.8 | 183.4 | 513.8 |
| GHTCDL1OV | -945.7 | 2023-07-13T14:55 | 3037.7 | 288.6 | 580.2 |
| GHTCDL2LV | -950.1 | 2023-07-13T15:01 | 3083.2 | 173.3 | 477.6 |
| GTV2DL2LV | -949.8 | 2023-07-13T15:16 | 3049.5 | 192.3 | 467.0 |
| GHTTDL1RV | -969.8 | 2023-07-14T09:02 | 2945.8 | 198.6 | 570.0 |
| GTV2DL1UV | -955.6 | 2023-07-14T09:14 | 3006.4 | 248.0 | 591.1 |
| GTH4DL5LV | -954.2 | 2023-07-14T14:29 | 2973.4 | 291.0 | 544.1 |
| GTH4DL4OV | -949.9 | 2023-07-14T14:35 | 2963.7 | 257.7 | 544.7 |
| GTH4DL2UV | -955.0 | 2023-07-14T14:51 | 2998.1 | 262.5 | 525.0 |
| GTH4DL1LV | -836.0 | 2023-07-14T14:59 | 3035.1 | 251.2 | 577.0 |
| GTH3DL3LV | -967.0 | 2023-07-14T15:05 | 2931.3 | 249.4 | 536.4 |
| GTH3DL2UV | -981.2 | 2023-07-14T15:41 | 2922.5 | 254.5 | 538.5 |
| GTH4DL3RV | -965.0 | 2023-07-14T15:47 | 2967.4 | 199.4 | 480.0 |
| GTH3DL1LV | -899.1 | 2023-07-14T15:56 | 2907.7 | 292.0 | 539.6 |
| GTH2DL5OV | -880.2 | 2023-07-14T16:01 | 3052.6 | 176.5 | 546.5 |
| GTH2DL4LV | -908.9 | 2023-07-14T16:08 | 2902.5 | 220.5 | 525.3 |
| GTH2DL3LV | -884.1 | 2023-07-14T16:17 | 3023.4 | 168.3 | 548.4 |
| GTH2DL1OV | -816.2 | 2023-07-14T16:23 | 2931.9 | 157.8 | 534.9 |
| GHHTDL1LV | -833.1 | 2023-07-14T16:37 | 3000.8 | 296.1 | 566.8 |
| GTH1DL1LV | -876.3 | 2023-07-14T16:49 | 3037.4 | 245.0 | 554.9 |
| GHADDL5OV | -871.0 | 2023-07-17T08:33 | 3081.2 | 230.0 | 531.0 |
| GHADDL4OV | -882.0 | 2023-07-17T08:41 | 3000.0 | 258.6 | 527.6 |
| GHADDL3OV | -848.0 | 2023-07-17T08:54 | 3098.1 | 199.9 | 545.8 |
| GHADDL2LV | -870.0 | 2023-07-17T09:00 | 3093.6 | 238.5 | 535.6 |
| GHADDL1OV | -903.0 | 2023-07-17T09:06 | 2908.8 | 271.7 | 519.2 |
| GTE3DL1LV | -867.0 | 2023-07-19T09:36 | 2921.7 | 233.0 | 533.5 |
| GTE3DL2OV | -908.0 | 2023-07-19T09:46 | 3071.4 | 306.6 | 563.5 |
| GTE2DL1LV | -893.0 | 2023-07-19T09:52 | 3052.5 | 263.4 | 539.2 |
| GTE1DL1LV | -961.0 | 2023-07-19T09:57 | 2922.4 | 211.0 | 549.0 |