Proton Calorimetry/Meetings/2017/12/13 - Revision history

SimonJolly at 15:02, 13 December 2017

2017-12-13T15:02:40Z

← Older revision		Revision as of 15:02, 13 December 2017
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	'''ABF''':		'''ABF''':

	* Fixed smearing of energy resolution in simulations:		* Fixed smearing of energy resolution in simulations:
	** Was smearing pre and post simulations: post-simulation always used 8.5%; now only smearing pre-simulation with variable resolution.		** Was smearing pre and post simulations: post-simulation always used 8.5%; now only smearing pre-simulation with variable resolution.
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	'''LK''':		'''LK''':

	* PPRIG was good!		* PPRIG was good!
	** Mike Merchant wants particle spectra for Geant4-DNA simulations.		** Mike Merchant wants particle spectra for Geant4-DNA simulations.
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	* Lots of code housekeeping!		* Lots of code housekeeping!
	* Will contact '''Michaela Esposito''' and '''Tony Price''' about ISDI sensors.		* Will contact '''Michaela Esposito''' and '''Tony Price''' about ISDI sensors.

	~~'''DW''':~~

	* Working on [http://www.hep.ucl.ac.uk/pbt/wikiData/presentations/2017/DW_LeCroyRoutines_06-12-17.pptx ROOT fitting for LeCroy binary data]:
	** Two classes for loading (LeCroyData) and analysing (LeCroySpectrum) data.
	** Methods that get time/voltage arrays for individual triggers reset time to zero.
	** Current integration in LeCroySpectrum chooses region based on voltage levels: '''SJ''' and '''LK''' suggested more robust to use time window. '''ABF''' said Caen integration window 100–200 ns.
	* Will contact '''Tony Price''' at Birmingham regarding taking some data with trackers!

	'''JS''':		'''JS''':

	* Gone back to looking into CAD modelling in Geant4.		* Gone back to looking into CAD modelling in Geant4.
	* Going through Matthieu's Clatterbridge simulations:		* Going through Matthieu's Clatterbridge simulations:
	** Learning how simulations run.		** Learning how simulations run.
	** Investigating introducing sensitive detectors for particle measurements.		** Investigating introducing sensitive detectors for particle measurements.

			'''DW''':
			* Improved code to integrate waveforms.
			* Reconstructed Caen ADC spectrum: needs corresponding LeCroy binary files.

SimonJolly at 14:47, 13 December 2017

2017-12-13T14:47:35Z

← Older revision		Revision as of 14:47, 13 December 2017
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	'''Matthieu Hentz''':		'''Matthieu Hentz''':

	* Refining Clatterbridge simulations:		* Refining Clatterbridge simulations:
	** Noticed that particles were getting through a gap between the dosimetry box and the nozzle: due to Geant having difficulties with coinciding boundaries.		** Noticed that particles were getting through a gap between the dosimetry box and the nozzle: due to Geant having difficulties with coinciding boundaries.

SimonJolly at 14:47, 13 December 2017

2017-12-13T14:47:27Z

@@ Line 11: / Line 11: @@
 ** Fixed by putting a brass ring around the nozzle on the outside of the box.
 * Completing coursework and reading up on proton CT.
 '''DW''':
@@ Line 21: / Line 41: @@
 '''JS''':
-'''ABF''':
+* Gone back to looking into CAD modelling in Geant4.
-* Investigating [http://www.hep.ucl.ac.uk/pbt/wikiData/presentations/2017/ABF_groupMeeting_06.12.17_fitStudies.pdf difference between MC truth and energy resolution returned by fit]:
+* Going through Matthieu's Clatterbridge simulations:
-** Adjusting energy resolution of scintillator (nominally 8.5%): gives Monte Carlo truth resolution of 1.36% at 60MeV.
+** Learning how simulations run.
-** Fit resolution doesn't change with increasing energy resolution.
+** Investigating introducing sensitive detectors for particle measurements.

SimonJolly: Created page with "== Minutes for UCL Proton Calorimetry Meeting, 6th December 2017 (D17, Physics & Astronomy, UCL) == === Present === '''Simon Jolly''', '''Laurent Kelleter''', '''Anastasia Bash..."

2017-12-13T14:02:50Z

Created page with "== Minutes for UCL Proton Calorimetry Meeting, 6th December 2017 (D17, Physics & Astronomy, UCL) == === Present === '''Simon Jolly''', '''Laurent Kelleter''', '''Anastasia Bash..."

New page

== Minutes for UCL Proton Calorimetry Meeting, 6th December 2017 (D17, Physics & Astronomy, UCL) ==

=== Present ===

'''Simon Jolly''', '''Laurent Kelleter''', '''Anastasia Basharina-Freshville''', '''Jordan Silverman''', '''Dan Walker'''

'''Matthieu Hentz''':

* Refining Clatterbridge simulations:
** Noticed that particles were getting through a gap between the dosimetry box and the nozzle: due to Geant having difficulties with coinciding boundaries.
** Fixed by putting a brass ring around the nozzle on the outside of the box.
* Completing coursework and reading up on proton CT.

'''DW''':

* Working on [http://www.hep.ucl.ac.uk/pbt/wikiData/presentations/2017/DW_LeCroyRoutines_06-12-17.pptx ROOT fitting for LeCroy binary data]:
** Two classes for loading (LeCroyData) and analysing (LeCroySpectrum) data.
** Methods that get time/voltage arrays for individual triggers reset time to zero.
** Current integration in LeCroySpectrum chooses region based on voltage levels: '''SJ''' and '''LK''' suggested more robust to use time window. '''ABF''' said Caen integration window 100–200 ns.
* Will contact '''Tony Price''' at Birmingham regarding taking some data with trackers!

'''JS''':
* Investigating alternative methods for [http://www.hep.ucl.ac.uk/pbt/wikiData/presentations/2017/JS_Different_Curve_fitting_method_6-12-17.pptx fitting to Matthieu's simulated energy spectrum for Clatterbridge data].

'''ABF''':
* Investigating [http://www.hep.ucl.ac.uk/pbt/wikiData/presentations/2017/ABF_groupMeeting_06.12.17_fitStudies.pdf difference between MC truth and energy resolution returned by fit]:
** Adjusting energy resolution of scintillator (nominally 8.5%): gives Monte Carlo truth resolution of 1.36% at 60MeV.
** Fit resolution doesn't change with increasing energy resolution.
** Spectra look very similar for different scintillator resolutions: overlap within error?
** Will run simulations with very small resolutions and dig further into fit.
* Will chase up Hamamatsu regarding flat panels.

'''MH''':
* Run Clatterbridge simulations with angled stopper:
** Largest angular offset of 15 degrees means 0.75mm difference in depth.
** Angle offset causes spectrum to flatten.

'''LK''':
* Has written a talk for PPRIG...