Proton Calorimetry/Meetings/2018/11/07: Difference between revisions

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'''JO''':
'''JO''':
*  
* Managed to run Geant4 photon tutorial by connecting from Windows/Mac laptops to plus1.
* Attending HEP lectures: HEP Monday and Tuesday, CDT Thursday.
* Cannot view or analyse results: issues with running ROOT over SSH.
* Going through Geant4 simulations: cannot view graphics on Windows laptop...
* '''MH''' will assist with setting up relevant software environment on Mac.
* Laptop has been ordered by '''SJ''' and '''Tony Hoare'''.
* Going through reading list provided by '''Jamie McClelland''' and '''Adam Gibson'''.
* Met with '''Jamie McClelland''' and '''Adam Gibson''' on 18th October: have been provided with reading list.
* Will take Medical Physics/CDT courses next term: ''Numerical Optimisation'' and ''Inverse Problems''.
* '''To Do''':
* '''To Do''':
** Try analysing Geant4 simulation results in Python.
** Install MacPorts and ROOT on Mac.
** Background reading!
** Try both local and remote data analysis.


'''MH''':
'''MH''':
* Pure Geant4 pCT simulation matches results from GATE.
* Pure Geant4 pCT simulation matches results from GATE.
*  
* Reconstruction not quite working: resulting image does not represent actual object.
* Possibly to do with matching up pairs of protons from pre/post object: might be possible to assign individual proton ID.
* Issues with merging results from multiple simulations: cannot use more than 70,000 particles per simulation.
* '''To Do''':
** Contact '''Simon Rit''' to discuss reconstruction issues.
** Contact '''Ben Morgan''' at Warwick to find solutions to simulation merging issues.


Multithreaded simulations result in multiple data files:  
'''OM''':
** Geant4 cannot merge them itself.
* Starting working on Geant4 simulations.
** Possible to merge manually.
* Reading up on C++: '''SJ''' suggested getting started with the same tutorials as '''JO''' and '''MH'''.
** '''RR''' suggests that merging should work automatically: will investigate.
* Plan of action is to work from Geant4 to BDSIM, then add in CAD modelling, before improving CAD model.
* '''To Do''':
** Build application for Legion cluster: need to speak to Research Computing.
** Test application on HEP and Legion clusters.


'''SS''':
'''SS''':
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'''FFF''':
'''FFF''':
* Background reading on proton therapy: '''LK''' recommended '''Paganetti: Proton Therapy Physics'''.
* Will be working on front end detector electronics design and readout for project.
* Met with '''LK''' to discuss detector development.
* Identified possible photodiodes for range calorimeter.
* Two potential ideas for Masters project:
* Contacted Hamamatsu but specific photodiode not available: will discuss with '''Anastasia Basharina-Freshville''' and '''SJ''' to contact Hamamatsu rep directly.
** Complete range calorimeter simulations.
** Front end electronics design and readout.
* Will contact '''Ruben Saakyan''' to discuss options and find out more about light detection options.


'''LK''':
'''LK''':
* Working on build-up simulation paper: need to check LET definition.
* Working on build-up simulation paper.
* Debugging Geant4 simulations with CentOS 7 environment.
* Preparing detector for HIT trip.
* Organisation of HIT trip.

Latest revision as of 19:07, 7 November 2018

Minutes for UCL Proton Calorimetry Meeting, 7th November 2018 (D17, Physics & Astronomy, UCL)

Present

Simon Jolly, Matthieu Hentz, Laurent Kelleter, Jeremy Ocampo, Saad Shaikh, Fernando Franco Felix, Ohie Mayenin

JO:

  • Managed to run Geant4 photon tutorial by connecting from Windows/Mac laptops to plus1.
  • Cannot view or analyse results: issues with running ROOT over SSH.
  • MH will assist with setting up relevant software environment on Mac.
  • Going through reading list provided by Jamie McClelland and Adam Gibson.
  • To Do:
    • Install MacPorts and ROOT on Mac.
    • Try both local and remote data analysis.

MH:

  • Pure Geant4 pCT simulation matches results from GATE.
  • Reconstruction not quite working: resulting image does not represent actual object.
  • Possibly to do with matching up pairs of protons from pre/post object: might be possible to assign individual proton ID.
  • Issues with merging results from multiple simulations: cannot use more than 70,000 particles per simulation.
  • To Do:
    • Contact Simon Rit to discuss reconstruction issues.
    • Contact Ben Morgan at Warwick to find solutions to simulation merging issues.

OM:

  • Starting working on Geant4 simulations.
  • Reading up on C++: SJ suggested getting started with the same tutorials as JO and MH.
  • Plan of action is to work from Geant4 to BDSIM, then add in CAD modelling, before improving CAD model.

SS:

  • Looking through data from Birmingham experimental runs.
  • Results generally look good:
    • Clear double peak for eyepatch data.
    • Some spectra show unexpected double peaks: SJ suggests PMT rate effects.
  • To Do:
    • Analyse scope data by Christmas.
    • Take data for LeCroy scope trigger rate test.

FFF:

  • Will be working on front end detector electronics design and readout for project.
  • Identified possible photodiodes for range calorimeter.
  • Contacted Hamamatsu but specific photodiode not available: will discuss with Anastasia Basharina-Freshville and SJ to contact Hamamatsu rep directly.

LK:

  • Working on build-up simulation paper.
  • Preparing detector for HIT trip.
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