Proton Calorimetry/Meetings/2021/09/29: Difference between revisions

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== Minutes for UCL Proton Calorimetry Meetings, 15th September ==
== Minutes for UCL Proton Calorimetry Meetings, 29th September ==


=== Present ===
=== Present ===
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**±5mm in x-y plane for given z
**±5mm in x-y plane for given z
**Range steps, no x-y scanning (demo live fit)
**Range steps, no x-y scanning (demo live fit)
***Will investigate behaviour of live fit when detector is seeing darkness. May require some gating feature.
**Box field treatment plan
**Box field treatment plan
**Steer beam towards photodiodes(?)
**Steer beam towards photodiodes(?)
*Will test experimental setup next week. CMOS sensor to not be used.
*Beam test at Clatterbridge likely to not happen until new year.
*Beam test at Clatterbridge likely to not happen until new year.
*Fern has provided headless pi
*Fern has provided headless Pi, will take home to test.
 
**Probably easiest to SSH from Mac when using it, requires static IP address.
*Marked up white scintillator sheets with numbers and thicknesses.
*Looking into multi-threading for live fitting.
*Discussion about stack holder design:
*Brief investigation into executing bash commands from webpage, [https://stackoverflow.com/questions/6235785/run-a-shell-script-with-an-html-button this forum post] may be useful.
**Connor has started mocking up designs, will present at next meeting
*Discussed first version of Connor's stack design:
**Current method of calibration with proton shoot-through is not sufficient for large numbers of scintillator sheets – requires 32 sheet modules where photodiodes do not move between calibration and insertion to full detector.
**Main issue is providing enough support for sheets of different sizes.
**Using radioactive source or UV LED injection can be an alternative method for calibration. Latter is easier, will inquire with Derek about this. Using protons for calibration also presents practical issues with obtaining beam-time.
**Current method would require entire detector recalibration if a module is removed.
*Fern will provide headless Pi later this week for testing.
**Is there a way of securing 32 sheets in a gapless holder?
*Work on more efficient GUI is underway.
**Will reconvene with Connor to discuss feedback.
**Will need to investigate detector control with GUI after handover.
*Will meet with Marko and Clive tomorrow to discuss Rev C design.
*Heard back from Raffy, will continue work on IEEE NSS MIC presentation.
*No word from Spyros/UCLH, but Clatterbridge beam test is possible.

Latest revision as of 11:22, 7 October 2021

Minutes for UCL Proton Calorimetry Meetings, 29th September

Present

Simon Jolly, Saad Shaikh, Jeremy Ocampo

Saad Shaikh

  • Met with Raffy to discuss poster for IEEE NSS MIC
    • Raffy to draft landscape version of poster and slides for video presentation.
    • Will meet again to discuss recording of video.
  • Raffy mentioned that we have a UV LED already, will look for it.
    • Will take care not to dismantle detector after next UCLH beam in order to take calibration measurements with UV LED.
  • Simon has heard back from Andy: UCLH beam test possible within next 1-2 months. Exact date TBC. Measurements to be made:
    • Background & calibration
    • Pencil beams, 70-110 MeV, 3 currents (high, low, very low)
    • ±5mm in x-y plane for given z
    • Range steps, no x-y scanning (demo live fit)
      • Will investigate behaviour of live fit when detector is seeing darkness. May require some gating feature.
    • Box field treatment plan
    • Steer beam towards photodiodes(?)
  • Will test experimental setup next week. CMOS sensor to not be used.
  • Beam test at Clatterbridge likely to not happen until new year.
  • Fern has provided headless Pi, will take home to test.
    • Probably easiest to SSH from Mac when using it, requires static IP address.
  • Looking into multi-threading for live fitting.
  • Brief investigation into executing bash commands from webpage, this forum post may be useful.
  • Discussed first version of Connor's stack design:
    • Main issue is providing enough support for sheets of different sizes.
    • Current method would require entire detector recalibration if a module is removed.
    • Is there a way of securing 32 sheets in a gapless holder?
    • Will reconvene with Connor to discuss feedback.
  • Will meet with Marko and Clive tomorrow to discuss Rev C design.
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