...
- Switch to tilted data taking with the two LBNL RD53a
- More cosmic telescope data with separate cosmicGui partition
- DAQ clock phase vs beam tests
- Depletion HV scan
Activities (Adrien, Timon, Ben, Maurice, Charilou, Patrick, Mark, Sanha, SD)
9:30 Sanha called the beam control room to start the beam. There is a water leakage in the klystrons, and the repair/replacement will take 3-4 hours. Test beam data taking will be postponed until the repair/replacement is complete (probably in the early afternoon).
...
22:11 After graphing the ToT from runs 522-530, noticed that it was not changing as much as expected, leading us to believe that maybe remotely changing the HV might not be working. To check, we set the voltage to 0 and took data but did not see what we expected. The camera pointed at the equipment rack didn't have the HV PS in the frame so we requested an access to go down and see whether remotely chaning the HV actually works or not. We confirmed that the HV was changing but the script must have an indexing error on its for loop because whenever the HV is set, it always ends up at a value 1 off from what was set. For example if we were at 20V and set it to 15 we would end at 16 and if we were at 10 and set to 15 we would end up at 14. There is also an Errcode flashing n Keithley at each stage. After figuring out that the voltage was changing but not to where we expected, a new webcam was moved to have the HV panel in view so it could be monitored.
22:52 Beam restored and Run 534 started.
2223:03 MC called to take away beam after Run 534 was completed.
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| Cosmic Run | Start | End time | #events | Trigger Delay | Comments |
|---|---|---|---|---|---|
| 051 | ~9:50 | ~9:51 | 1k | -104500, 224 | Testing without the beam for random noises. No significant noise seen. |
| 053 | 11:56 | 12:27 | 10k | -104500, 224 | |
| 054 | 12:34 | 13:05 | 9k | - | Cosmic run ended in order to change the trigger over to the RD 53A's |
| 057 | 14:58 | 15:00 | ~600 | - | Short run to make sure trigger/timing is still working as expected (Runs 55 and 56 before this were empty due to beam being off for access to fix triggers) |
| 058 | 15:05 | 15:40 | 10K | - | |
| 059 | 15:47 | 16:22 | 10K | - | |
| 060 | 16:23 | 16:57 | 10K | - | |
| 061 | 16:58 | 16:34 | 10K | - | |
| 062 | - |
Nov/7
ESTB beam **11am–9pm**
Plan of the Day
- SLAC Rd53a device 0x0A97 (25x100 pixel 150um active thickness) replaces the current channel D 0x0A57 (50x50) early enough in the morning to allow Timon tuning it remotely
- SLAC RD53a readout tests with TLU
- Setup a cleaned up TTL beam trigger from Ch-11 for cosmic telescope to see if the double timing peaks still exist.
- Main data taking runs will be steep tilted 25x100 sensors. One DUT at a time, first 0x0A54 (100um LBNL) then 0x0A97 (150um SLAC).