Proton Calorimetry/Meetings/2018/02/14 - Revision history

SimonJolly at 15:25, 14 February 2018

2018-02-14T15:25:56Z

← Older revision		Revision as of 15:25, 14 February 2018
Line 15:		Line 15:
	** Make up a list of all equipment needed for [[Proton_Calorimetry/Experimental_Runs/2018/Feb21]]		** Make up a list of all equipment needed for [[Proton_Calorimetry/Experimental_Runs/2018/Feb21]]

	** Sensor is very early in ~~pCT development: readout is slow (~1,000 frames/s)~~.		'''RS''':
	** Potential for pCT collaboration.		* Discussions in Sheffield with '''John MacMillan''' regarding low gain PMT.
	** ~~They are sharing experimental time with us~~ at ~~MedAustron on 22/23 March~~.		* Low gain tubes '''are''' available from RCA, who are long out of business:
	** ~~We will have 6 hours on Thursday night and ~4 hours on Friday night~~.		** Designed for use at very high light levels.
	** ~~Will make single module measurements for them: MedAustron rate and pCT calorimetry~~.		** Only 1 ever made: '''RS''' has obtained it from '''John'''.
	** Accommodation is booked: 4 rooms in Orange Wings (close to MedAustron).		** Tube has 5 dynode stages.
	* Both Zarges enclosures are finally here:		* We should take to MedAustron! May not have time to test it before though...
	** Smaller one is painted: waiting on specs from ISDI to choose patch panel connectors.
	** Larger one just arrived: Derek will paint tomorrow.

	'''LK''':		'''LK''':
	* Running tests on [http://www.hep.ucl.ac.uk/pbt/wikiData/presentations/2018/~~LK20180207_ScintillatorSheetTestsWithLED~~.pdf Scintillator Sheets using LED]:		* Running tests on [http://www.hep.ucl.ac.uk/pbt/wikiData/presentations/2018/LK20180214_ScintillatorSheet2mmTestsWithLED.pdf 2mm Scintillator Sheets using LED]:
	** ~~First tests~~ with ~~Nikon DSLR carried out on 5/6 February~~.		** All sheets marked with thickness.
	** ~~Some sheets not properly painted, so~~ light ~~leaks in around fibre~~.		** Sheets clamped then aligned to make sure they are perfectly square to camera.
	** ~~Camera highly adjustable: '''RS''' suggests running tests with LED settings used for PRIAPUS saturation~~.		** Using minimum aperture with 6s acquisition.
	** ~~Lens aberrations seen with high~~ light levels.		** Using different fibres: very different light output.
	** ~~Variation seen across sheet but average~~ light level ~~approximately the same~~ for ~~all~~ sheets.		** Choosing fibre 8 gives more uniform light output from each sheet.
			** Some measurements have much higher light levels.
			** Repeating measurements gives highly repeatable light level for each sheet.
			** Light levels within +/-25% for each sheet (+-10% for 3mm sheets).
	* ''To Do'':		* ''To Do'':
	** ~~Some sheets need repainting: will speak to '''Derek Attree'''~~.		** Visit ISDI on Friday.
	** ~~Chasing up ISDI!~~		** Run through sensor setup.
	** Test USB3 patch panel connector.		** Bring back to UCL.
	** ~~Finish off analysis~~.		** Get sensor working.
	** ~~Add Remote Desktop information to Wiki~~.

	'''~~ABF~~''':		'''JS''':
			* Scintillator sheet thickness measurements added to [[http://www.hep.ucl.ac.uk/pbt/wiki/Proton_Calorimetry/Experimental_Runs/2018/FebScintSheets 2018/FebScintSheets Wiki page]].
			* Autodesk Inventor currently installing for model construction and STEP-file export.
	* ''To Do'':		* ''To Do'':
	** ~~Continue LED tests: rerun with settings that saturated PRIAPUS; set up radioactive source~~.		** Make CAD models of Clatterbridge beamline components.
	** ~~Label scintillator sheets~~.		** Export models as Geant4-compatible components.
	** ~~Polish scintillator sheets.~~		** Rerun simulations to check differences in simulations with CAD components.
	** Analyse LED data.

	~~'''RS''':~~
	* Had meeting with ~~Hamamatsu.~~
	* 2 potential products available:
	** Linear image sensor.
	** Position sensitive linear image sensor.
	* Both active pixel sensor strips.
	* Industrial devices: less than £50 each!
	* Readout available but expensive (£800).

	'''MH''':		'''MH''':
	* ~~Focussing on buffered event writing in Geant4 to speed~~ up ~~simulations~~.		* Finished cleaning up simulation:
	* ~~Fixed issue by avoiding use of pointers~~: ~~needed a custom accumulator class~~.		** Properly commented, neat code.
	* ~~Factor of 30 speed up~~ with ~~buffering!~~		** Buffered readout also cleaned up: just needs to specify certain variables in run macro.
	* ~~Code needs tidying~~ up..		* Wiki needs updating.
			* In contact with '''Jacinta Yap''' about Clatterbridge simulations:
			** Had contact with '''Oleg''' regarding previous simulations.
			** A file has been sent, but probably completely wrong...
			* Finishing off CDT courses and coursework.
			* Reading up on CT reconstruction: Inverse Problems course still running.
	* ''To Do'':		* ''To Do'':
	** Tidy up Geant4 buffering code.
	** Update Wiki.		** Update Wiki.
			** Finish off Exception handling.
	~~'''JS''':~~		** Group project submitted end of March.
	* ~~[http://www~~.~~hep.ucl.ac.uk/pbt/wikiData/presentations/2018/JS_07_02_18.pptx Reanalysed scintillator sheet thicknesses after painting]:~~
	** ~~Difference in thickness~~ of ~~10 to 70 microns after painting.~~
	* ''To Do'':
	** Write up scintillator sheet measurements on Wiki page.
	** CAD import/export in Geant4.

SimonJolly at 14:23, 14 February 2018

2018-02-14T14:23:47Z

← Older revision		Revision as of 14:23, 14 February 2018
Line 5:		Line 5:
	'''Simon Jolly''', '''Ruben Saakyan''', '''Matthieu Hentz''', '''Jordan Silverman''', '''Dan Walker''', '''Laurent Kelleter'''		'''Simon Jolly''', '''Ruben Saakyan''', '''Matthieu Hentz''', '''Jordan Silverman''', '''Dan Walker''', '''Laurent Kelleter'''

	'''SJ''':		'''DW''':
	* ~~Meeting with~~ '''LK''' ~~at TU Wien HEPHY on 1st February~~:		* Looking into measuring rate of acquisitions for LeCroy scope:
	** ~~TU Wien have 26x26mm sensor developed~~ for ~~Belle they want to use~~ for ~~proton CT.~~		** No built-in function to do this.
			** ''Should'' be possible calculate it using built-in math functions.
			** Manual not particularly clear...
			* Looking at tracker data from '''Tony Price''':
			** Structure very simple: each timestamp also has 5 sets of X-Y-Z data for 4 trackers.
			* ''To Do'':
			** Make up a list of all equipment needed for [[Proton_Calorimetry/Experimental_Runs/2018/Feb21]]

	** Sensor is very early in pCT development: readout is slow (~1,000 frames/s).		** Sensor is very early in pCT development: readout is slow (~1,000 frames/s).
	** Potential for pCT collaboration.		** Potential for pCT collaboration.

SimonJolly: Created page with "== Minutes for UCL Proton Calorimetry Meeting, 7th February 2018 (D17, Physics & Astronomy, UCL) == === Present === '''Simon Jolly''', '''Ruben Saakyan''', '''Matthieu Hentz'''..."

2018-02-14T13:58:23Z

Created page with "== Minutes for UCL Proton Calorimetry Meeting, 7th February 2018 (D17, Physics & Astronomy, UCL) == === Present === '''Simon Jolly''', '''Ruben Saakyan''', '''Matthieu Hentz'''..."

New page

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

=== Present ===

'''Simon Jolly''', '''Ruben Saakyan''', '''Matthieu Hentz''', '''Jordan Silverman''', '''Dan Walker''', '''Laurent Kelleter'''

'''SJ''':
* Meeting with '''LK''' at TU Wien HEPHY on 1st February:
** TU Wien have 26x26mm sensor developed for Belle they want to use for proton CT.
** Sensor is very early in pCT development: readout is slow (~1,000 frames/s).
** Potential for pCT collaboration.
** They are sharing experimental time with us at MedAustron on 22/23 March.
** We will have 6 hours on Thursday night and ~4 hours on Friday night.
** Will make single module measurements for them: MedAustron rate and pCT calorimetry.
** Accommodation is booked: 4 rooms in Orange Wings (close to MedAustron).
* Both Zarges enclosures are finally here:
** Smaller one is painted: waiting on specs from ISDI to choose patch panel connectors.
** Larger one just arrived: Derek will paint tomorrow.

'''LK''':
* Running tests on [http://www.hep.ucl.ac.uk/pbt/wikiData/presentations/2018/LK20180207_ScintillatorSheetTestsWithLED.pdf Scintillator Sheets using LED]:
** First tests with Nikon DSLR carried out on 5/6 February.
** Some sheets not properly painted, so light leaks in around fibre.
** Camera highly adjustable: '''RS''' suggests running tests with LED settings used for PRIAPUS saturation.
** Lens aberrations seen with high light levels.
** Variation seen across sheet but average light level approximately the same for all sheets.
* ''To Do'':
** Some sheets need repainting: will speak to '''Derek Attree'''.
** Chasing up ISDI!
** Test USB3 patch panel connector.
** Finish off analysis.
** Add Remote Desktop information to Wiki.

'''ABF''':
* ''To Do'':
** Continue LED tests: rerun with settings that saturated PRIAPUS; set up radioactive source.
** Label scintillator sheets.
** Polish scintillator sheets.
** Analyse LED data.

'''RS''':
* Had meeting with Hamamatsu.
* 2 potential products available:
** Linear image sensor.
** Position sensitive linear image sensor.
* Both active pixel sensor strips.
* Industrial devices: less than £50 each!
* Readout available but expensive (£800).

'''MH''':
* Focussing on buffered event writing in Geant4 to speed up simulations.
* Fixed issue by avoiding use of pointers: needed a custom accumulator class.
* Factor of 30 speed up with buffering!
* Code needs tidying up..
* ''To Do'':
** Tidy up Geant4 buffering code.
** Update Wiki.

'''JS''':
* [http://www.hep.ucl.ac.uk/pbt/wikiData/presentations/2018/JS_07_02_18.pptx Reanalysed scintillator sheet thicknesses after painting]:
** Difference in thickness of 10 to 70 microns after painting.
* ''To Do'':
** Write up scintillator sheet measurements on Wiki page.
** CAD import/export in Geant4.