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- Some description and tutorials how to take the calibration scans is https://atlaswww.hep.anl.gov/asc/wikidoc/doku.php?id=itk:testbeam. All figures correspond to the previous scan on Sep 29 ( RTISC2B/config/RTISC2B__cern__93.cfg)
- 5.00AM: New ANALOG and THRESHOLD scans. It was found that, without calibration, we see large number of low-efficient analog channels. About 70% of channels have 40 counts (50 expected). This drastic difference compared to Sep 29, right after installation, when about 1% of channels showed 40 counts (mostly for first 2 rows). The noise level from the threshold scan increased by a factor 2.
- 5.1515AM: New calibration for the RTI module is RTISC2B/config/RTISC2B__cern__158.cfg. After the calibration, it was noticed a large number of bad modules, large noise 400e, and the analog scan has more loses on the left edge.
- Preliminary conclusion: Similar to the red module installed on Sep 28, the green module shown signs of the degraded performance for the analog part: lower efficiency and a larger noise after 6h inside the test beam setup. This cannot be related to the beam, since there was no beam for the red module on Sep 28. This also not related to the light, since the sensor of the green module was covered.
- New calibration RTISC2B/config/RTISC2B__cern__225.cfg