Proton Calorimetry/Meetings/2017/11/22 - Revision history

SimonJolly at 15:15, 22 November 2017

2017-11-22T15:15:29Z

← Older revision		Revision as of 15:15, 22 November 2017
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	** Very little difference in spectra.		** Very little difference in spectra.
	** OMA Monte Carlo school indicated overlap in geometry boundaries may be a problem...		** OMA Monte Carlo school indicated overlap in geometry boundaries may be a problem...
			* Changed how particles recorded from stepping action to sensitive detector.
			* Given up on installing Geant4 on MacBook Pro: will switch over to piss poor Lenovo CDT laptop:
			** '''SJ''' will ask '''Tim Scanlon''' about swapping for a machine with more horsepower.

			'''LK''':
			* Discussing build-up paper with '''Adam Gibson''':
			** Simplified definition of build-up to be based on Bragg curve.
			** Understanding more about the physics!
			** Reran simulations at higher energies: absorber too small.
			** Will contact various OMA colleagues to understand origin of high entrance dose for protons above 200 MeV.

SimonJolly at 14:40, 22 November 2017

2017-11-22T14:40:41Z

← Older revision		Revision as of 14:40, 22 November 2017
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	== Minutes for UCL Proton Calorimetry Meeting, ~~15th~~ November 2017 (D17, Physics & Astronomy, UCL) ==		== Minutes for UCL Proton Calorimetry Meeting, 22nd November 2017 (D17, Physics & Astronomy, UCL) ==

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

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

	~~'''RS''':~~
	* WaveCatcher has arrived!
	** '''ABF''' will have first look then pass on to '''DW'''.
	* Hamamatsu flat panel sensor needs to be ordered:
	** '''~~ABF~~''' ~~will chase up.~~

	'''ABF''':		'''ABF''':
	* ~~Comparing~~ '''~~Matthieu~~'s''~~' simulated spectrum to results for Clatterbridge single module~~:		* Spoke to '''Ruben Saakyan''' about Nuvia sheets:
	** ~~Spectrum looks closer than before to measured spectrum~~.		** '''Ruben''' visiting Prague in the next few weeks.
	** ~~Landau fit working~~ for ~~peak but long tail not well described~~.		** Waiting for Nuvia to determine whether they can do 2 mm sheets.
	** ~~'''RS''' suggests '''Network Performance Analysis!'''~~		* Spoke to Hamamatsu about flat panel detectors:
	** ~~Will work with Laurent~~ on ~~improving~~ fitting ~~of data.~~		** Contact person might be called Simon...
	* ~~Testing Hamamatsu boosted PMT base~~:		** Preferred detector 50x50 mm version: will check the differences.
	** ~~Erratic behaviour disappears when boosting 6th dynode~~ but ~~peak~~ still ~~drops with increasing frequency~~.		* Working on fitting to single module spectrum:
			** Issues with fitting in ROOT: version dependent...
			** Now fitting to tail as well as peak, but transition still needs work.
			** Will add in exponential term to 'join' two parts of fit.

	'''JS''':		'''JS''':
	* ~~Looking into CAD modelling in Geant4:~~		* Spoke to '''Glen Cowan''' at RHUL on ROOT curve fitting:
	** Issues with each option for CAD import!		** Suggested to add in another convolution;
	** Will email '''SJ''' ~~with details of CAD import issues.~~		** If that doesn't work, try doing piecewise fit.
	* ~~Haven't pursued PRaVDA VM.~~		* Will prototype in Python before moving over to ROOT.
	* ~~Will look at ROOT fitting with details from '''ABF''~~'.
	* Will ~~start~~ to ~~run Clatterbridge simulations from '''Matthieu'''~~.

	'''DW''':		'''DW''':
	* ~~Working~~ to ~~fit waveform~~ files ~~in ROOT~~.		* Very close to finishing off producing spectra from Lecroy binary files.
	* ~~Have simplified filtering: will add in baseline subtraction for each waveform~~.		* Will then move on to curve fitting...
	* '''~~ABF~~''' ~~suggests using alternative method than pulse fitting to distinguish double pulses~~: ~~will~~ be ~~much faster!~~
			'''MH''':
			* Running Clatterbridge simulations with changes in nozzle cap angle:
			** Very little difference in spectra.
			** OMA Monte Carlo school indicated overlap in geometry boundaries may be a problem...

SimonJolly: Created page with "== Minutes for UCL Proton Calorimetry Meeting, 15th November 2017 (D17, Physics & Astronomy, UCL) == === Present === '''Simon Jolly''', '''Ruben Saakyan''', '''Anastasia Bashar..."

2017-11-22T14:13:34Z

Created page with "== Minutes for UCL Proton Calorimetry Meeting, 15th November 2017 (D17, Physics & Astronomy, UCL) == === Present === '''Simon Jolly''', '''Ruben Saakyan''', '''Anastasia Bashar..."

New page

== Minutes for UCL Proton Calorimetry Meeting, 15th November 2017 (D17, Physics & Astronomy, UCL) ==

=== Present ===

'''Simon Jolly''', '''Ruben Saakyan''', '''Anastasia Basharina-Freshville''', '''Jordan Silverman''', '''Dan Walker'''

'''RS''':
* WaveCatcher has arrived!
** '''ABF''' will have first look then pass on to '''DW'''.
* Hamamatsu flat panel sensor needs to be ordered:
** '''ABF''' will chase up.

'''ABF''':
* Comparing '''Matthieu's''' simulated spectrum to results for Clatterbridge single module:
** Spectrum looks closer than before to measured spectrum.
** Landau fit working for peak but long tail not well described.
** '''RS''' suggests '''Network Performance Analysis!'''
** Will work with Laurent on improving fitting of data.
* Testing Hamamatsu boosted PMT base:
** Erratic behaviour disappears when boosting 6th dynode but peak still drops with increasing frequency.

'''JS''':
* Looking into CAD modelling in Geant4:
** Issues with each option for CAD import!
** Will email '''SJ''' with details of CAD import issues.
* Haven't pursued PRaVDA VM.
* Will look at ROOT fitting with details from '''ABF'''.
* Will start to run Clatterbridge simulations from '''Matthieu'''.

'''DW''':
* Working to fit waveform files in ROOT.
* Have simplified filtering: will add in baseline subtraction for each waveform.
* '''ABF''' suggests using alternative method than pulse fitting to distinguish double pulses: will be much faster!