Proton Calorimetry/Meetings/2018/11/14: Difference between revisions

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'''Simon Jolly''', '''Raffaella Radogna''', '''Laurent Kelleter''', '''Jeremy Ocampo''',  '''Saad Shaikh''', '''Fernando Franco Felix''', '''Ohie Mayenin''', '''James Golbourn'''
'''Simon Jolly''', '''Raffaella Radogna''', '''Laurent Kelleter''', '''Jeremy Ocampo''',  '''Saad Shaikh''', '''Fernando Franco Felix''', '''Ohie Mayenin''', '''James Golbourn'''


'''JO''':
Everybody introduced themselves to '''James'''; James introduced himself to everyone.
* 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.
'''JG'''
* '''MH''' will assist with setting up relevant software environment on Mac.
* Reading through relevant chapters of '''Proton Therapy Physics''' by '''Paganetti'''.
* Going through reading list provided by '''Jamie McClelland''' and '''Adam Gibson'''.
* Lots of background reading on QA devices and processes: '''LK''' promises to forward on paper on PSI QA systems.
* '''To Do''':
* '''To Do''':
** Install MacPorts and ROOT on Mac.
** Read through QA paper from '''LK'''.
** Try both local and remote data analysis.
** 4 days a week of MSc courses: Advanced QM, Molecular BioPhys, Physics of Stars; Climate and Energy, Advanced Stats, Molecular Physics. Also studying particle physics.


'''MH''':
'''JO''':
* Pure Geant4 pCT simulation matches results from GATE.
* Almost finished Geant4 tutorials:
* Reconstruction not quite working: resulting image does not represent actual object.
** Geant4 installed on laptop.
* Possibly to do with matching up pairs of protons from pre/post object: might be possible to assign individual proton ID.
** Installed MacPorts and ROOT on Mac.
* Issues with merging results from multiple simulations: cannot use more than 70,000 particles per simulation.
* Had questions about how Geant4 calculates dose deposition.
* Still going through reading list provided by '''Jamie McClelland''' and '''Adam Gibson'''.
* '''To Do''':
* '''To Do''':
** Contact '''Simon Rit''' to discuss reconstruction issues.
** Build Geant4 simulations of Cherenkov emission in water and scintillation light output from scintillator block.
** Contact '''Ben Morgan''' at Warwick to find solutions to simulation merging issues.
** Contact '''Adam Gibson''' for existing Geant4 Cherenkov simulations.
** Find optimal [https://satechi.net/collections/usb-type-c Satechi USB-C adapter].


'''OM''':
'''OM''':
* Starting working on Geant4 simulations.
* Finished working through first Geant4 tutorial on photon beam: will look at proton 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.
* Plan of action is to work from Geant4 to BDSIM, then add in CAD modelling, before improving CAD model.
* '''To Do''':
** Proton Geant4 tutorials.
** Take a look at BDSIM: will contact '''SJ''' when ready to move on to BDSIM tutorials.


'''SS''':
'''SS''':
* Looking through data from [[Proton_Calorimetry/Experimental_Runs/2018/Oct25-6|Birmingham experimental runs]].
* Started reconstructing spectra from LeCroy waveform data from [[Proton_Calorimetry/Experimental_Runs/2018/Oct25-6|Birmingham experimental runs]]:
* Results generally look good:
** Parameters need tweaking in '''Dan Walker's''' reconstruction code to match Caen spectra.
** Clear double peak for eyepatch data.
** Needed to widen window in which pulse arrives: '''SJ''' suggests contacting '''Dan''' to implement code to find pulse rising edge.
** Some spectra show unexpected double peaks: '''SJ''' suggests PMT rate effects.
* Still trying to quantify LeCroy scope dead time: will contact '''SJ''' when next tests need to be made to check setup.
* '''To Do''':
* '''To Do''':
** Analyse scope data by Christmas.
** Talk to '''Dan Walker''' about pulse rising edge finding.
** Take data for LeCroy scope trigger rate test.
** Check total number of protons in each peak for eyepatch data.
** Send spectra to '''Tony Price'''.
** Plan to have all Birmingham data analysed by Christmas: both spectra and tracker.
 
'''MH''':
* Still checking through Geant4 simulations:
** Phantom rotating in visualiser but not in actual simulation...
** Rotation now fixed: managed to reconstruct and view images of phantom.
* Need to convert ITK format to something with 2D slices to analyse data:
** '''SJ''' suggests contacting '''Jamie McClelland''' for DICOM conversion and viewing tools.
* Probably don't need to run on Legion: better reconstruction using fan beam with 10 million protons.
* '''To Do''':
** Assign ID to each proton to speed up pre and post matching.
** Contact '''Simon Rit''' and '''Niels Krah''' to convert ITK images to DICOM.
** Contact '''Jamie McClelland''' for DICOM image conversion and reconstruction tools.
** Transfer report due 30th November.


'''FFF''':
'''FFF''':
* Will be working on front end detector electronics design and readout for project.
* Met '''Daniel Spring''' from Hamamatsu to look into optimal photodiodes:
* Identified possible photodiodes for range calorimeter.
** New products ''may'' be available that fit our needs.
* Contacted Hamamatsu but specific photodiode not available: will discuss with '''Anastasia Basharina-Freshville''' and '''SJ''' to contact Hamamatsu rep directly.
** Custom photodiode also possible: removing resin that covers photodiode reduces transverse size but makes it ''much'' more sensitive.
 
'''LK''':
* Working on build-up simulation paper.
* Preparing detector for HIT trip.

Latest revision as of 16:30, 14 November 2018

Minutes for UCL Proton Calorimetry Meeting, 14th November 2018 (D17, Physics & Astronomy, UCL)

Present

Simon Jolly, Raffaella Radogna, Laurent Kelleter, Jeremy Ocampo, Saad Shaikh, Fernando Franco Felix, Ohie Mayenin, James Golbourn

Everybody introduced themselves to James; James introduced himself to everyone.

JG

  • Reading through relevant chapters of Proton Therapy Physics by Paganetti.
  • Lots of background reading on QA devices and processes: LK promises to forward on paper on PSI QA systems.
  • To Do:
    • Read through QA paper from LK.
    • 4 days a week of MSc courses: Advanced QM, Molecular BioPhys, Physics of Stars; Climate and Energy, Advanced Stats, Molecular Physics. Also studying particle physics.

JO:

  • Almost finished Geant4 tutorials:
    • Geant4 installed on laptop.
    • Installed MacPorts and ROOT on Mac.
  • Had questions about how Geant4 calculates dose deposition.
  • Still going through reading list provided by Jamie McClelland and Adam Gibson.
  • To Do:
    • Build Geant4 simulations of Cherenkov emission in water and scintillation light output from scintillator block.
    • Contact Adam Gibson for existing Geant4 Cherenkov simulations.
    • Find optimal Satechi USB-C adapter.

OM:

  • Finished working through first Geant4 tutorial on photon beam: will look at proton simulations.
  • Plan of action is to work from Geant4 to BDSIM, then add in CAD modelling, before improving CAD model.
  • To Do:
    • Proton Geant4 tutorials.
    • Take a look at BDSIM: will contact SJ when ready to move on to BDSIM tutorials.

SS:

  • Started reconstructing spectra from LeCroy waveform data from Birmingham experimental runs:
    • Parameters need tweaking in Dan Walker's reconstruction code to match Caen spectra.
    • Needed to widen window in which pulse arrives: SJ suggests contacting Dan to implement code to find pulse rising edge.
  • Still trying to quantify LeCroy scope dead time: will contact SJ when next tests need to be made to check setup.
  • To Do:
    • Talk to Dan Walker about pulse rising edge finding.
    • Check total number of protons in each peak for eyepatch data.
    • Send spectra to Tony Price.
    • Plan to have all Birmingham data analysed by Christmas: both spectra and tracker.

MH:

  • Still checking through Geant4 simulations:
    • Phantom rotating in visualiser but not in actual simulation...
    • Rotation now fixed: managed to reconstruct and view images of phantom.
  • Need to convert ITK format to something with 2D slices to analyse data:
    • SJ suggests contacting Jamie McClelland for DICOM conversion and viewing tools.
  • Probably don't need to run on Legion: better reconstruction using fan beam with 10 million protons.
  • To Do:
    • Assign ID to each proton to speed up pre and post matching.
    • Contact Simon Rit and Niels Krah to convert ITK images to DICOM.
    • Contact Jamie McClelland for DICOM image conversion and reconstruction tools.
    • Transfer report due 30th November.

FFF:

  • Met Daniel Spring from Hamamatsu to look into optimal photodiodes:
    • New products may be available that fit our needs.
    • Custom photodiode also possible: removing resin that covers photodiode reduces transverse size but makes it much more sensitive.
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