Schedule
| Day/Week | Date | Activities | Program | |
|---|---|---|---|---|
| Thursday-Saturday | Dec/6-8 | T577 stand alone running. Day shift AMO beam unusable. | ||
| Sunday | Dec/9 | T577 running at 5 GeV | ||
| Monday | Dec/10 | Day: T577 changing energy to 8 GeV. | Night: T539 at 8 GeV | |
| Tuesday | Dec/11 | Day: T577 running at 8 GeV. | Night: T539 at 8 GeV | |
| Wednesday | Dec/12 | Day: T577 changing to 3 GeV until beam off 1pm | ||
| Thursday | Dec/13 | Day: T578 (UCSC/HGTD) setup | Night: T539 at 12.6 GeV | |
| Friday | Dec/14 | Day: MD, no beam. HGTD setup continues | Night: T539 at 12.6 GeV | |
| Saturday | Dec/15 | T578 HGTD runs start | ||
Main Goal
The Nov/2018 T539+T545 session had reduced beam time due to one primary LCLS experiment didn't permit the 5 Hz parasitic beam to ESTB. A makeup shared session was negotiated during this period with T577 (Moller calorimeter) also using secondary beam. The main goals of this test session:
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2) An independent examination of the L1A time distribution with the SLAC HSIO2+FEB readout. Data taken so far with YARR all exhibited a very broad distribution.
Preparation
Caladium was moved into place at the start of T577 and remote driven to far wall with 1-2 inch clearance from beam line so that we can remote drive it back to beam line.
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| B53 | Thresholds | Noise map |
|---|---|---|
| YARR |  |  |
| HSIO2+FEB |
Installation Inventory
- RD53A module on DUT mounting frame
- FEB board + 12V supply
- HSIO2 (C02) with 12V supply
- FEB-HSIO2 QSFP->LS fiber
- DisplayPort cable
- Agilent LV supply with GPIB controller, LV cable to FEB. Ethernet cable to Fanless box.
- Keithley HV
- TLU box with its voltage supply + square USB link to Fanless box
- Additional NIM discriminator from ESA for better trigger fanout cleanup + LEMO cables
- Tie-wrap mounting for FEB
Dec/10 Night shift
Zijun, Ke, SD
9:30pm T577 wrapping up last scan. Since we would like to go to ~100e/pulse for tuning first, T577 decided to turn off and moved out of beamline.
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10:30am Still cannot turn on magnet. Give up. Moved Caladium out of beam line for T577 to take over day shift.
Dec/11 Night shift
Zijun, Ke, SD
9:00pm T577 needs another 2 hours to wrap up this round of tests until 11pm. Tonee found space heater for the kicker magnet so hopefully access is no longer as ,much of a risk, but we still need to avoid long access.
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| Run | Start | End | Event | Particle rate | Tilt | Comments |
|---|---|---|---|---|---|---|
| 653 | 1:50 | 2:05 | 4852 | 40 | 0 | Ended to try new version of producer |
| 683 | 3:22 | 3:55 | 9906 | 40 | 0 | (eventNumber offset -1, new version of YarrProd still can not sync with MIMOSA) |
| 684 | 4:00 | 4:34 | 9908 | 40 | 0 | ((eventNumber offset 0, new version of YarrProd still can not sync with MIMOSA) |
| 686 | 4:49 | 5:20 | 9908 | 40 | 60 | (x increase 5 mm) |
| 687 | 5:23 | 5:56 | 9928 | 40 | 60 | same running condition as 686. Suddenly found YarrProd sync with MIMOSA, so, maybe run 684 and 686 also sync. |
| 688 | 5:58 | 6:05 | 2338 | 40 | 60 | (Not sync, so, looks like 687 just accidently sync) |
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|---|---|---|
| Run 684 beam spot from 3rd MIMOSA plane | Run 684 RD53A (A97) hit map | |
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tilt photo for run 686,687
Plots from tilted Run 686:
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|---|---|---|
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7:40 stop testing A97, replace with B53.
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9:03 beam change, so no beam for ESA. Beam is expected to be back after ~15mins
stop at 9:24.
Dec/11
Zijun, SD
T578 HGTD period starts today but they are not ready to run until Saturday. Some additional time for ITk at the mean time.
Surrendered the HSIO2 Ethernet cable (Belden ch 8) to HGTD setup and the ESA-RESTRICTED network ports on the ESA switch 25-48 is completely jammed full. Took a long time to find Belden ch 24 is for power strip on an unused rack just outside the ESTB tunnel mouth. Displaced that cable at Ch 24 with Ch 11 cable connected to HSIO2 to bring that back int the network.
Night shift got Howard to produce a new setup to derive a 12.65 GV secondary beam for the 14.65 GeV primary beam. It looks like this set can work with the remaining night shifts of this period, but Day shifts with MEC starting Saturday is 10 GeV primary beam which needs a separate setup to run 8 GeV secondary. The tuning of the 12.65 secondary beam had a few surprises with momentum cuts moving spot location etc. We settled with a round beam spot covering ~1/3 of the MIMOSA at ~70 particles/pulse. The beam spot is shift by a few mm in -X and -Y which needed to move whole Caladium to recenter.
Whole shift of test runs debugging the loss of event ID match between Caladium and RD53A readout. Some runs got good MIMOSA vs RD53A X,Y correlation at start at least and other runs were not aligned. There were some odd extra event looking like real distinctive RD53A beam hit data at DUT readout but never found a matching MIMOSA event data. TLU ch-2 RJ45 port is somewhat suspicious and sometimes could not communicate with FEB. Moved FEB link to TLU ch 3. More stable communication to FEB, but the issue of extra event on RD53A side remains.
Dec/12
Day shift: UCSC T788 setup continues during MD. One main issue to resolve is the dead Trg-10 for Caladium. T578 needs both Trg-10 (NIM for Caladium) and Trg-11 (TTL for HGTD). Didn't manage with connect with Doug to debug the dead Trg-10, but he passed on a schematic for the ESTB trigged patch scheme:
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The issue with Trg-10 is not obvious: EVG rear expansion board ch 11 (LVTTL?) is one of the inputs (the other input is EVG Front trigger 2) to the Lecroy level adaptor in compl mode tuning that into a -1.2V and 300ns width NIM. The only part looking suspicious is the LEMO cable taking the NIM output to J10 looks very tight. Replaced that part with a slightly longer cable.
Night shift: ZiJun,SD