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Flight Hardware : TKR (FM8) & CAL (FM101) on bay 3 (close to the edge) and CAL (FM109) on bay 1. We took photos from photos from arrival and during installation in the clean room.
No modifications were done or rework on towers during the beam test. During integration into the 1 x 4 grid one TKR connector (between flex cable 7 and the TEM) of non-flight TKR was slightly offset and we added a connector saver to avoid stress in the cable.
Note for mechanical crew : For future operations, note that clearance inside is very small, so exercise care before remving the Inner Shipping Container. Since SLAC has a precision crane this will not be an issue.
Eliazar Ortiz assured us that the clean room (room 104) is continuously monitored for humidity and temperature.
Downloaded data from recorder: max humidity 7%, max temp 33 C, Max force 4 g. Eliazar downloaded all data , which was then provided to John Ku for review. Note: Dates are logged in awkward format: first day was April 24, last day was May 1 2007.
Summary of Results
The CU is different from the LAT in many respects, so is the software to run it. There is essentially only a single local installation allowing to run the CU, right now, and it resides on the lat-btserver - latbt01/lat-bt04 (spare) machines. Here are some notes about the installation itself, the tests that can be performed, the schema files to be used.No modifications were done or rework on towers during the beam test. During integration into the 1 x 4 grid one TKR connector (between flex cable 7 and the TEM) of non-flight TKR was slightly offset and we added a connector saver to avoid stress in the cable.
No anomalies or failures were experience over the course of the beam test that would degrade the flight hardware. The fact that CU passed functional tests below demonstrates that.
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As part of the knowledge transfer process from Pisa to SLAC, Luca and Carmelo taught Jana how to operate the CU.
Note for mechanical crew : For future operations, note that clearance inside is very small, so exercise care before remving the Inner Shipping Container. Since SLAC has a precision crane this will not be an issue.
Eliazar Ortiz assured us that the clean room (room 104) is continuously monitored for humidity and temperature.
Downloaded data from recorder: max humidity 7%, max temp 33 C, Max force 4 g. Eliazar downloaded data. Data was provided to John Ku for review. Note: Dates are logged in awkward format: first day was April 24, last day was May 1 2007.
Tests
Here is the list of functional tests we performed as part of the incoming procedure.
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For charge injection runs, tests are self-contained and results labeled PASSED are indeed meaningful (we also inspected the reports). Charge injection tests are done one tower at the time.
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- Noise and gain measurement (TkrNoiseAndGain.py)
- Reference run for the TKR module attached to TEM 3: run 700004421 (PASSED)
- Reference run for the TKR module attached to TEM 2: run 700004435 (PASSED*)
* Note that TKR FM16 (connected to TEM 2) is not filght and it does have its "features" and idiosyncrasies. In particular there are quite a few layers failing in terms of disconnecetd/defecting channels (Y15, X13, Y11, Y10, Y2). A good reference run for comparison (though quite old, now, and taken with a different software version) is run 700000107:
- Noise occupancy measurement (TkrNoiseOccupancy)
- Reference run for the TKR module attached to TEM 3: run 700004422 (PASSED)
- Reference run for the TKR module attached to TEM 2: run 700004436 (PASSED)
CAL
- Standard CPT (CPT_beamtest.py)
- Reference run for the CAL module attached to TEM 3: runs 700004423-700004433, summary 700004434 (PASSED)
- Reference run for the CAL module attached to TEM 2: runs 700004437-700004447, summary 700004448 (PASSED)
- Reference run for the CAL module attached to TEM 1: runs 700004449-700004459, summary 700004460 (PASSED)
Data taking
- Standard end2end (BT 2, nominal conditions, all triggers enabled). See table of configurations
- 700004466 ~ 2 kevents
- 700004467 ~ 12 kevents
- reference run from BT 70000657Triggers rates for TKR 2 and 3 are slightly different but consistent with results from CERN tests
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