Current primary objectives:

  1. Understand the root cause for the non-linearity (checker mark) observed for the ePix10k small detectors (on hold for beamtime);
  2. Develop the backplane pulsing system;
  3. Investigate the relative gain ratios for the ePix10k2M to understand the effect of applying per pixel gains to correct the switched gain tiger-teeth pattern (ties into the work with the Berkley grup);
  4. Effect of increasing the ACQ/R0 windows, and the CompEnOn window length, on the tiger-teeth pattern;
  5. Develop and apply Gabriel's calibration method for the LCLS detector.


Topics to discuss during the meeting (progress): 

  1. Additional M&S for calibration work:
  2. Preparation for beamtimes:

    1. The beamtime requests that have been sent to Sebastien:

      Camera testing

      Station

      Dates

      Objective

      ePix10ka small and 2M

      MFX

      13 July + second shift sometime between 15-17 July

      Verify we understand the checker mark problem with the ePix10k small and 2M.

      ePix10k smalls

      MFX

      July 21

      Retake the calibration data needed to come up with calibration constant for these cameras.

      ePixHR

      MFX

      Aug 29, Sept 14+15

      Evaluate the operation and performance of the ePixHR detector (ideally ASIC v4)

      Conny has discussed the possibility of creating a non-ghosting 10k camera for beamtimes 1/2 and is hopeful this will be possible. The ePixHR ASIC v4. the prototype was also addressed, and he needs six weeks after the arrival of the ASIC to be able to make one/two for us.

    2. Discuss what testing needs to be done, what additional equipment needs to be ready (ACQ/pulse oscilloscope system), DAQ scripts we want to try and realize, and what direct visualization scripts need to be available.
    3. Kaz has also talked to Meng and Andy, and they will try and give us ~3hrs of testing from their CXI check-out time as well;
    4. IH proposal review panel for run 22 was held yesterday, we are currently making the cut with our UHR proposal.
  3. Progress for the past week:
    1. ACQ window increase testing;
    2. Progress in getting the pulser system up and running at ASC - Xilinx cards have been flashed;
    3. Relative gain ratios;
    4. Gabriel's calibration method;
    5. any other business;
  4. Initial ePixM test plan for the non-back-thinned and back-thinned prototypes. Test plan to be discussed can be found here: 1.4.8. Performance evaluation


Meeting notes:

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