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12:35 Channel 10 beam trigger disappeared . Reason unknown
13:05 Swapping the trigger channels 10 (originally feeding the EUDET) and 11 (originally feeding the cosmic telescope). The original trigger settings are: width 200ns, delay -110488ns for channel 10 (EUDET) and width 100ns, delay -104500ns for channel 11 (cosmic telescope).
while Ch 11 was driving the cosmic telescope at 5 Hz happily. Tried to run ch 10 trigger with a generated 10Hz from the trigger module and that also worked. Call Carsten and Mike Dunning and both had no idea how that could happen. The trigger unit was clearly receiving the accelerator signal correctly to run ch 11 while the down stream part delivering trigger to ESTB was also fine with the generated 10Hz.
13:05 When in for access to see what's going on. Swapping the trigger channels 10 (originally feeding the EUDET) and 11 (originally feeding the cosmic telescope). The original trigger settings are: width 200ns, delay 110488ns for channel 10 (EUDET) and width 100ns, delay 104500ns for channel 11 (cosmic telescope). This didn't work and quickly found out that Ch 10 is NIM but Ch 11 is TTL so we cannot really swap. So we are back to the original pattern of ch 10 running TLU. The Ch 10 NIM pulse looked a bit marginal with slow ramps barely getting to asym level. Inceasred the width to 300ns and also noticed some ripple after pulsing. Cleanup up the setup so that CH 10 BNC swicthed to LEMO to go in a NIM Fanout unit input and much more polished square pulse output from the Fanout is sent to the TLU. The fanout unit Thr is tweaked to wipe out the after ripple pulses. This cleanup seemed to have worked, but not clear where things fell exactly before this.
14:55 Beam back after some struggle at MCC with turning on the A-line magnet. Started Run 497.
15:29 Noticed the beam was off but trigger was still firing because magnet was still on, not sure for how long but there will be less data in Run 497 because although the number of events kept increasing there were no hits on RD53a bc the beam was off.
15:31 Full-ish(10K but not really) run 497 ended and Run 498 started.
16:05 Ended run 498 with full 10K events and started Run 499.
16:39 Ended run 499 with full 10K events and autostarted Run 500 but got an event mismatch error that killed all of the producers.
16:42 Started Run 501.
17:15 Ended run 501 with full 10K events and started Run 502.
| Run | Start | End time | #events | RD53a DUT | Particle rate | Comments |
|---|---|---|---|---|---|---|
| 481 | 11:52 | 11:56 | 1k | C, D | RD 53A tilted at 11.8 degrees. Run ended early to change YARR config. | |
| 482 | 11:56 | 12:35 | 7k | C, D | 4.8 / 0.8 | The trigger from the machine stopped. Run ended. |
| 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 | ||
| 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 | ||||||