Proton Calorimetry/Meetings/2025/02/29 - Revision history

JosephBateman: Blanked the page

2025-02-10T16:18:15Z

Blanked the page

← Older revision		Revision as of 16:18, 10 February 2025
Line 1:		Line 1:
	~~== Minutes for UCL Proton Beam Therapy Group Meetings, 4th February ==~~

	~~=== Present ===~~

	~~'''Joe Bateman''', '''Sonia Escribano''', '''Simon Jolly''', '''Raffaella Radogna (via Teams)''', '''Kirsty Hall (from Hamamatsu)'''~~

	* Discussion with Kirsty Hall from Hamamatsu about photodiode arrays for scintillating fibre array to allow for better integration with QuARC.
	* Kirsty to investigate two possible routes for going forward:
	** Possibility of having on board DDC or way of connecting S13885-128 photodiode array to DDC board.
	** Possibility of having surface mounted photodiodes (such as S12859-021) shrunk to a smaller size so that pixel pitch is comparable with 0.5mm fibre diameter.
	* Also will look into questions Raffy has a about current experience with S13885-128 photodiode array, i.e.:
	** If observed response at saturation (e.g., decreasing signal rather than plateau or charge sharing among neighbours) is expected
	** How response of individual photodiodes within array vary and how to characterise this.

	~~=== [[ELogs/RaffaellaRadogna\|Raffaella Radogna]] ===~~

	* Discussed with Bari mech eng Producing second prototype with resin material harry suggested - use inventor files (should be able to open fusion) will share with them once harry has finished with the fusion file
	* Produce 2 new prototypes (frame + fibres + screws etc) and have one sent here
	* Beam test in Trento
	** ~5s per beam
	** 10 beam deliveries each for CONV and UHDR calibrations (but may only need 8)
	** Background measurement at FSR for 12.5pC acquisition and for for FLASH
	** Happy to cut out as many pristine Bragg peaks as necessary to keep within FLASH time limits at Trento
	** I.e. 1 minute = 12 Bragg peaks at ~5s per measurements
	** Or Bragg peaks at lower measurement time per FLASH Bragg peak (i.e. <5 s)
	** Spot scanning at CONV dose rates
	** Potentially WET measurement of fibres at next UCLH if using giraffe on new QuARC electronics


	~~=== [[ELogs/SoniaEscribano\|Sonia Escribano]] ===~~

	* Looking at new calibration method - now works with txt file that is generated with calibration values
	* Problem with calibration
	** Need calibRMS - need separate file with these values?
	*** Important for the fit
	*** Include rms beneath calibration coefficients
	** How do we save name of header file for calibration file
	** Include in header file which files were used to generate calibration coefficients

	* In new file structure maybe have new file directory for background data, i.e. calibration, background, date
	** For now do it manually
	* New calibration and fitting procedure
	** generate calibration txt files using shoot throughs
	** Apply calibration values generates calibrated txt with every single measurement
	** Fit data averaged at 25 Hz -read calibrated data and fit at desired frequency (default 25hz)
	* Things for new experiment
	** Raw data = 160*8 (hex length and 8 modules)
	** Calibration: 4 calibration_i files
	** Calibrate data
	** Initially split the raw data in two files for each Bragg peak
	* Messaged harry about scintillators waiting to hear from John and Wayne but still hasn't sent them scintillator sheets yet
	* Simon and Sonia to check final design on fusion

	* How do you ensure consistency between modules if there's difference in coupling etc
	** Take Manchester data and do shoot-through calibration in current way then apply it to one of the shoot-through calibration files and see how it looks for each module (i.e. treat each module independently)
	** Need to find a way to scale to dose in each of the modules


	~~=== [[ELogs/JoeBateman\|Joe Bateman]] ===~~

JosephBateman at 16:16, 10 February 2025

2025-02-10T16:16:37Z

← Older revision	Revision as of 16:16, 10 February 2025
Line 1:	Line 1:
		== Minutes for UCL Proton Beam Therapy Group Meetings, 4th February ==

		=== Present ===

		'''Joe Bateman''', '''Sonia Escribano''', '''Simon Jolly''', '''Raffaella Radogna (via Teams)''', '''Kirsty Hall (from Hamamatsu)'''

		* Discussion with Kirsty Hall from Hamamatsu about photodiode arrays for scintillating fibre array to allow for better integration with QuARC.
		* Kirsty to investigate two possible routes for going forward:
		** Possibility of having on board DDC or way of connecting S13885-128 photodiode array to DDC board.
		** Possibility of having surface mounted photodiodes (such as S12859-021) shrunk to a smaller size so that pixel pitch is comparable with 0.5mm fibre diameter.
		* Also will look into questions Raffy has a about current experience with S13885-128 photodiode array, i.e.:
		** If observed response at saturation (e.g., decreasing signal rather than plateau or charge sharing among neighbours) is expected
		** How response of individual photodiodes within array vary and how to characterise this.

		=== [[ELogs/RaffaellaRadogna\|Raffaella Radogna]] ===

		* Discussed with Bari mech eng Producing second prototype with resin material harry suggested - use inventor files (should be able to open fusion) will share with them once harry has finished with the fusion file
		* Produce 2 new prototypes (frame + fibres + screws etc) and have one sent here
		* Beam test in Trento
		** ~5s per beam
		** 10 beam deliveries each for CONV and UHDR calibrations (but may only need 8)
		** Background measurement at FSR for 12.5pC acquisition and for for FLASH
		** Happy to cut out as many pristine Bragg peaks as necessary to keep within FLASH time limits at Trento
		** I.e. 1 minute = 12 Bragg peaks at ~5s per measurements
		** Or Bragg peaks at lower measurement time per FLASH Bragg peak (i.e. <5 s)
		** Spot scanning at CONV dose rates
		** Potentially WET measurement of fibres at next UCLH if using giraffe on new QuARC electronics


		=== [[ELogs/SoniaEscribano\|Sonia Escribano]] ===

		* Looking at new calibration method - now works with txt file that is generated with calibration values
		* Problem with calibration
		** Need calibRMS - need separate file with these values?
		*** Important for the fit
		*** Include rms beneath calibration coefficients
		** How do we save name of header file for calibration file
		** Include in header file which files were used to generate calibration coefficients

		* In new file structure maybe have new file directory for background data, i.e. calibration, background, date
		** For now do it manually
		* New calibration and fitting procedure
		** generate calibration txt files using shoot throughs
		** Apply calibration values generates calibrated txt with every single measurement
		** Fit data averaged at 25 Hz -read calibrated data and fit at desired frequency (default 25hz)
		* Things for new experiment
		** Raw data = 160*8 (hex length and 8 modules)
		** Calibration: 4 calibration_i files
		** Calibrate data
		** Initially split the raw data in two files for each Bragg peak
		* Messaged harry about scintillators waiting to hear from John and Wayne but still hasn't sent them scintillator sheets yet
		* Simon and Sonia to check final design on fusion

		* How do you ensure consistency between modules if there's difference in coupling etc
		** Take Manchester data and do shoot-through calibration in current way then apply it to one of the shoot-through calibration files and see how it looks for each module (i.e. treat each module independently)
		** Need to find a way to scale to dose in each of the modules


		=== [[ELogs/JoeBateman\|Joe Bateman]] ===

JosephBateman: Created blank page

2025-02-04T17:23:24Z

Created blank page

New page