SimonJolly at 15:11, 24 January 2018

2018-01-24T15:11:32Z

← Older revision		Revision as of 15:11, 24 January 2018
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	'''Simon Jolly''', '''Laurent Kelleter''', '''Matthieu Hentz''', '''Anastasia Basharina-Freshville''', '''Jordan Silverman''', '''Dan Walker'''		'''Simon Jolly''', '''Laurent Kelleter''', '''Matthieu Hentz''', '''Anastasia Basharina-Freshville''', '''Jordan Silverman''', '''Dan Walker'''

	'''DW''':		'''LK''':
	* ~~Integration of Leroy binary signals were giving negative results~~:		* Investigating [http://www.hep.ucl.ac.uk/pbt/wikiData/presentations/2018/LK20180124_AnalyseImageData.pdf image acquisition for Nikon camera]:
	** Probably a result of including rising edge of pulse when calculating baseline.		** Using '''SJ''' liquid scintillator image to test reconstruction.
	** By cutting off the second half of pre-trigger pulse, only 1 pulse giving negative integral.		** Integrating single column of pixels to get 1D curve.
	** '''SJ''' ~~suggests looking at smallest pulses~~ to ~~make sure integration is valid; also check negative result~~.		** Gets an approximate Bragg curve from integrated signal but reflections in image make curve poor.
	** ~~'''ABF''' suggests comparing integration windows~~ of ~~150 ns and lower~~ to ~~Caen ADC data: currently using window over whole pulse~~.
	* ''To Do'':		* ''To Do'':
	** ~~Fix negative pulse~~.		** Computer upgraded to Centos7: fit doesn't work any more (ROOT integrator fails).
	** ~~Adjust timing window~~ to ~~replicate Caen spectrum.~~		** Find a way to deal with very different scintillator slice thicknesses
	** ~~Meeting on Monday with '''Tony Price'''~~.		** Data format of ISDI sensor?
			** Make everything more smooth and ready-to-use for users
			** Make sure camera hardware is set up ready for DAQ.

	'''JS''':		'''JS''':
	* ~~Reading (and reading (and reading)) Geant4 manuals, MSci report~~ from '''MH''' ~~and~~ PBTWiki ~~pages on Clatterbridge simulations~~.		* Making measurements of [http://www.hep.ucl.ac.uk/pbt/wikiData/presentations/2018/JS_23_01_2018.pdf scintillator sheet thickness]:
			** 3 mm sheets are closer to 2.75 mm but variation is mostly below 100 microns.
			** 2 mm sheets have 2 groupings:
			** 2.0 mm group has better flatness than 2.6 mm group.
			* Also been playing around with Clatterbridge simulations:
			** Tried running on Centos7.
			** Will go back to SL6 as it actually works properly...
			* ''To Do'':
			** Split up 2 mm sheet results into the 2 groups.
			** Meeting with Matthieu on Clatterbridge simulations.
			** Get them running on SL6.

			'''DW''':
			* Investigating negative integrated waveforms form LeCroy binary files:
			** One bad pulse comes from small tail in leading pulse region.
			** Reducing standard deviation for this region cuts out bad pulse.
			* Put up instructions on LeCroy binary file conversion for '''Tony Price''' on PBTWiki.
	* ''To Do'':		* ''To Do'':
	** ~~Will set up meeting with~~ '''MH''' ~~to check progress on Clatterbridge simulations.~~		** Adding integration window to get spectrum to match Caen ADC data.
	** Copy over simulations to user directory to play around with simulations.		** Badger '''Tony Price''' for tracker files.

	'''ABF''':		'''ABF''':
	* Will ~~get~~ '''JS''' and '''DW''' ~~to check thickness~~ of ~~scintillator sheets.~~		* Writing paper: finish off plots and majority of writing.
	* Update on [http://www.hep.ucl.ac.uk/pbt/wikiData/presentations/2018/ABF_groupMeeting_17.01.2018.pdf single module detector simulations and scintillator paint tests]:		* Painting scintillator sheets:
	** Checking Monte Carlo Truth with ~~detector output~~.		** Both paints look good so far.
	** ~~Still a difference between MC Truth and reconstructed resolutions~~, but ~~much smaller than before when using mono energetic proton beam~~.		** Will check on Monday for painting all sheets.
	** ~~Resolutions are good enough for paper.~~		* Final version of 3 month plan requested by '''SJ''':
	* Paint tests with ~~scintillator still pending:~~		** Will include notes from previous meetings and circulate.
	** Retested painted scintillator sheet with higher LED voltage: resolution now matches unpainted, wrapped scintillator.		** Will '''not''' include any details of final plans for beam tests: waiting for discussion with '''Ruben Saakyan'''.
			** '''SJ''' strongly objected to choice not to decide on complete schedule in advance, but left choice to '''ABF'''.
			** '''SJ''' requested to be involved in meeting with '''RS''' regarding final beam schedule.
	* ''To Do'':		* ''To Do'':
	** ~~Paint another sheet with aerosol~~.		** Complete main draft of schedule (but NOT including requirements for beam tests).
	** ~~Writing paper~~.		** Painting scintillator.
	** ~~Sensor selection for beam test~~.		** First draft by next week.

	'''MH''':		'''MH''':
	* ~~Mostly~~ coursework ~~for CDT courses: Numerical Optimisation, High Performance Computing, Machine Learning with Big Data, Research Computing with C++, Inverse Problems in Imaging~~.		* Finished all first term exams and coursework.
	* ~~Background reading on pCT reconstruction and group project at The Economist~~.		* Second term courses starting to bear fruit! But needs to learn background mathematics...
	** Mathematical background to CT reconstruction.		* Will attend proton imaging workshop in Lyon, 14–15 June.
	** Notation in ~~Comp Sci is different..~~.		* Currently compiling Geant4 on Virtual Machine on '''new''' MacBook.
	* ~~Staging of Clatterbridge now finished!~~
	** Some behaviour doesn'~~t quite make sense: will investigate.~~
	** Still need to get faster particle readout working with buffering.
	* ''To Do'':		* ''To Do'':
	** Exams Monday & Tuesday.
	** Meeting with Jordan on Wednesday.		** Meeting with Jordan on Wednesday.
	** Buffering of readout in Geant4.		** Buffering of readout in Geant4.

SimonJolly: Created page with "== Minutes for UCL Proton Calorimetry Meeting, 24th January 2018 (D17, Physics & Astronomy, UCL) == === Present === '''Simon Jolly''', '''Laurent Kelleter''', '''Matthieu Hentz..."

2018-01-24T14:06:07Z

Created page with "== Minutes for UCL Proton Calorimetry Meeting, 24th January 2018 (D17, Physics & Astronomy, UCL) == === Present === '''Simon Jolly''', '''Laurent Kelleter''', '''Matthieu Hentz..."

New page

== Minutes for UCL Proton Calorimetry Meeting, 24th January 2018 (D17, Physics & Astronomy, UCL) ==

=== Present ===

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

'''DW''':
* Integration of Leroy binary signals were giving negative results:
** Probably a result of including rising edge of pulse when calculating baseline.
** By cutting off the second half of pre-trigger pulse, only 1 pulse giving negative integral.
** '''SJ''' suggests looking at smallest pulses to make sure integration is valid; also check negative result.
** '''ABF''' suggests comparing integration windows of 150 ns and lower to Caen ADC data: currently using window over whole pulse.
* ''To Do'':
** Fix negative pulse.
** Adjust timing window to replicate Caen spectrum.
** Meeting on Monday with '''Tony Price'''.

'''JS''':
* Reading (and reading (and reading)) Geant4 manuals, MSci report from '''MH''' and PBTWiki pages on Clatterbridge simulations.
* ''To Do'':
** Will set up meeting with '''MH''' to check progress on Clatterbridge simulations.
** Copy over simulations to user directory to play around with simulations.

'''ABF''':
* Will get '''JS''' and '''DW''' to check thickness of scintillator sheets.
* Update on [http://www.hep.ucl.ac.uk/pbt/wikiData/presentations/2018/ABF_groupMeeting_17.01.2018.pdf single module detector simulations and scintillator paint tests]:
** Checking Monte Carlo Truth with detector output.
** Still a difference between MC Truth and reconstructed resolutions, but much smaller than before when using mono energetic proton beam.
** Resolutions are good enough for paper.
* Paint tests with scintillator still pending:
** Retested painted scintillator sheet with higher LED voltage: resolution now matches unpainted, wrapped scintillator.
* ''To Do'':
** Paint another sheet with aerosol.
** Writing paper.
** Sensor selection for beam test.

'''MH''':
* Mostly coursework for CDT courses: Numerical Optimisation, High Performance Computing, Machine Learning with Big Data, Research Computing with C++, Inverse Problems in Imaging.
* Background reading on pCT reconstruction and group project at The Economist.
** Mathematical background to CT reconstruction.
** Notation in Comp Sci is different...
* Staging of Clatterbridge now finished!
** Some behaviour doesn't quite make sense: will investigate.
** Still need to get faster particle readout working with buffering.
* ''To Do'':
** Exams Monday & Tuesday.
** Meeting with Jordan on Wednesday.
** Buffering of readout in Geant4.

Proton Calorimetry/Meetings/2018/01/24 - Revision history

SimonJolly at 15:11, 24 January 2018

SimonJolly: Created page with "== Minutes for UCL Proton Calorimetry Meeting, 24th January 2018 (D17, Physics & Astronomy, UCL) == === Present === '''Simon Jolly''', '''Laurent Kelleter''', '''Matthieu Hentz..."