Proton Calorimetry/Meetings/2017/10/04: Difference between revisions

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== Minutes for UCL Proton Calorimetry Meeting, 20th September 2017 (D17, Physics & Astronomy, UCL) ==
== Minutes for UCL Proton Calorimetry Meeting, 4th October 2017 (D17, Physics & Astronomy, UCL) ==


=== Present ===
=== Present ===


'''Simon Jolly''', '''Laurent Kelleter''', '''Anastasia Basharina-Freshville''', '''Jordan Silverman''', '''Matthieu Hentz'''
'''Simon Jolly''', '''Ruben Saakyan''', '''Laurent Kelleter''', '''Anastasia Basharina-Freshville''', '''Jordan Silverman''', '''Matthieu Hentz''', '''Dan Walker'''
 
'''JS''':
* Working on different visualisers for tutorials.
* Tried using Google visualisation package (the name of which escapes us...).
* Waiting on information from '''Tony Price''' on Geant4 visualisation: '''SJ''' will chase up...


'''ABF''':
'''ABF''':
* Detector simulations now working:
* Detector simulations now include hexagonal module and Clatterbridge nozzle collimator.
** Ported from SLC5 to SL6 (Geant4.10.2).
* Trying to pin down origin of non-Gaussian shape of ADC peak from Clatterbridge data:
** Bragg curve plot inside detector fixed.
** Background measurements do show low energy peak but nothing at high energies.
** Can read in output files from '''MH''''s Clatterbridge simulations.
** Low energy peak slightly reduced due to absorption in 4cm PMMA.
* Have heard back from Hamamatsu regarding wiring for PMT bases.
** Using Matthieu's latest simulations with 2mm collimator does show a non-Gaussian shape on main peak but not large enough.
 
* '''RS''' suggests putting an angle on the collimator in '''MH''''s simulations to check the effect.
'''RS'''
* Also modifying mylar thickness to check effects.
* Still working with Hamamatsu to provide PMT for single module:
* Have all parts for boosted PMT: should be ready to test.
** Supply last dynode stages in PMT from 2 HV PSUs.
** Concern over no limiting resistor between HV and dynode...


'''MH'''
'''MH'''
* Welcome back!
* Running Clatterbridge simulations that Anastasia has been demanding!
* Courses start next week: will add in some Medical Physics courses.
* Working on splitting many particle simulation to increase proton numbers at nozzle.
* Will look into rerunning Clatterbridge simulations to provide input for Anastasia:
** Having trouble killing particles...
* Split beamline into 3 sections:
** Will split simulation into 4 steps.
** Up to 1st collimator (doughnut).
* Wiki needs updating.
** Between doughnut and stopper.
** After stopper.


'''LK''':
'''LK''':
* Transfer talk almost finished: ready for inspection...
* Been learning Java for PHAS3459.
* Will add in latest results to Build-Up publication, but also need to speak to Adam.
* Will email '''Michela Esposito''' and '''Tony Price''' regarding MAPS readout.
* '''SJ''' will contact '''Claus-Stefan Schmitzer''' regarding OMA placements.


'''JS''':
'''DW''':
* Updated and corrected all Geant4 tutorials.
* Shelved Java and Python versions of Lecroy binary file readout: all now in C++.
* '''SJ''' to create a page for Eclipse tutorials.
* Next step is to read data into ROOT.
* Will take over from Matthieu running Clatterbridge simulations...

Latest revision as of 14:11, 4 October 2017

Minutes for UCL Proton Calorimetry Meeting, 4th October 2017 (D17, Physics & Astronomy, UCL)

Present

Simon Jolly, Ruben Saakyan, Laurent Kelleter, Anastasia Basharina-Freshville, Jordan Silverman, Matthieu Hentz, Dan Walker

JS:

  • Working on different visualisers for tutorials.
  • Tried using Google visualisation package (the name of which escapes us...).
  • Waiting on information from Tony Price on Geant4 visualisation: SJ will chase up...

ABF:

  • Detector simulations now include hexagonal module and Clatterbridge nozzle collimator.
  • Trying to pin down origin of non-Gaussian shape of ADC peak from Clatterbridge data:
    • Background measurements do show low energy peak but nothing at high energies.
    • Low energy peak slightly reduced due to absorption in 4cm PMMA.
    • Using Matthieu's latest simulations with 2mm collimator does show a non-Gaussian shape on main peak but not large enough.
  • RS suggests putting an angle on the collimator in MH's simulations to check the effect.
  • Also modifying mylar thickness to check effects.
  • Have all parts for boosted PMT: should be ready to test.

MH

  • Running Clatterbridge simulations that Anastasia has been demanding!
  • Working on splitting many particle simulation to increase proton numbers at nozzle.
    • Having trouble killing particles...
    • Will split simulation into 4 steps.
  • Wiki needs updating.

LK:

  • Been learning Java for PHAS3459.
  • Will add in latest results to Build-Up publication, but also need to speak to Adam.
  • Will email Michela Esposito and Tony Price regarding MAPS readout.
  • SJ will contact Claus-Stefan Schmitzer regarding OMA placements.

DW:

  • Shelved Java and Python versions of Lecroy binary file readout: all now in C++.
  • Next step is to read data into ROOT.
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