Proton Calorimetry/Future Work - Revision history

SimonJolly at 21:01, 7 October 2025

2025-10-07T21:01:01Z

← Older revision		Revision as of 21:01, 7 October 2025
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	* Real-time measurement of PBT beam spot size/position with sub-millimetre precision using scintillating fibre arrays.		* Real-time measurement of PBT beam spot size/position with sub-millimetre precision using scintillating fibre arrays.
	* Coverage of “clinically relevant” transverse scanning area and range:		* Coverage of “clinically relevant” transverse scanning area and range:
	** ~~230~~ MeV/~~330~~ mm range.		** 250 MeV/400 mm range.
	** 5 cm × 5 cm scanning area.		** 5 cm × 5 cm scanning area.
	* Integration into single portable detector enclosure with single power and network inputs and nozzle mount.		* Integration into single portable detector enclosure with single power and network inputs and nozzle mount.

SimonJolly at 20:59, 7 October 2025

2025-10-07T20:59:46Z

← Older revision		Revision as of 20:59, 7 October 2025
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	=== DAQ and GUI ===		=== DAQ and GUI ===

			* Streamline existing FPGA code to improve memory management: '''MW'''.
	* Replace Raspberry Pi/USB104 with QuADProBe Kria (see below): '''F'''.		* Replace Raspberry Pi/USB104 with QuADProBe Kria (see below): '''F'''.
	* Live GUI frequently unresponsive, needs resolving: '''JB'''.		* Live GUI frequently unresponsive, needs resolving: '''JB'''.
	* Replace PapaParse with direct JSON input: '''JB'''.		* Replace PapaParse with direct JSON input: '''JB'''.
	* Ensure post processing and replay fully functional to review previous beam tests: '''JB'''.		* Ensure post processing and replay fully functional to review previous beam tests: '''JB'''.

	~~=== Mechanical Design ===~~

	== QuADProBe Development ==		== QuADProBe Development ==
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	* 250 micron square scintillating fibre arrays: '''RR'''.		* 250 micron square scintillating fibre arrays: '''RR'''.
	* Hamamatsu digital S17285 photodiode array readout.		* Hamamatsu digital S17285 photodiode array readout.
	* Kria-based DAQ		* Kria-based DAQ.

			=== Front-End Electronics ===

			* Move to Hamamatsu S17285 arrays.
			* Mechanical design of holder for scintillating fibres and photodiode arrays: '''HB'''.
			* Interface board needed for power/timing signal distribution and board I/O: '''PH'''.

			=== DAQ ===

			* Transition from Pi/USB104 to Kria.
			* Kria needs bespoke carrier board for power and DAQ interconnects: '''IC'''.
			* Port existing Pi DAQ code to Kria: '''F'''.
			* Expand firmware to include SciFi readout and 4-sided QuARC: '''F'''.
			* Modify GUI to include spot position measurements: '''JB'''.

			=== Reconstruction ===

	==~~Calibration and data~~==		* Development “Event Tagging” system to sync SciFi and QuARC “Events”: '''JB'''.
	~~Is it possible to calibrate the detector without a proton beam?~~		* Streamline reconstruction process to allow rapid reconstruction of acquired data: '''JB'''.
	* ~~Maybe an e- beam beta source?~~
	* Modify ~~the geant4 simulation to verify what E will we need so there is no quenching?~~		== Mechanical Design ('''HB''') ==
	* ~~Can we obtain average results to mitigate position sensitivity?~~
			* Enlarge cover/alignment plates and resolve offset.
			* Investigate use of carbon fibre sheet to replace aluminised mylar windows.
			* Modify rails with better mounts for module fixation.
			* Nozzle mount.

	==~~GUI~~==		== Calibration and data ==
	* Implement any options needed that have user input
	* Replay and post-processing options
	* Version with full live detector control ➾ reset and relaunch options included
	* Check current varian control system: what does if offer and how do they control the detector? ➾ Check with Clatterbridge, Allison and A. Mazal

	~~==Mechanical design==~~		* Is it possible to calibrate the detector without a proton beam?
	* ~~For 245 MeV, is~~ it ~~doable~~ to ~~do 1 module of 32 PD with~~ the ~~2.8mm thick and then 3 modules of 32 PD with scintillators 3mm thick?~~		* Maybe an e- beam beta source?
	* How can we design the modules so they can attach and detach easily? ➾ We need a ~~robust design but not rigid~~
	* Power distribution?
	* ~~Beam windows? Light tight~~?

	==Future ~~beam tests~~==		== Future Beam Tests ==

	* ~~Beam test where we check the shape~~ and ~~position of the BP (scanning field)~~		* Compare QuADProBe performance against HIT scintillating fibre array: '''SJ''' to liaise with '''JH'''.
	* ~~Real~~ treatment plans		* Retest alignment of Czech PTC nozzle and QA: '''SJ''' to liaise with Prague PTC.
	* ~~Testing~~ with ~~real gantry mount~~		* Collate list of centres that can provide scanned fields/treatment plans from experimental nozzles: '''SJ'''.
			* Nozzle-mounted test with Merino system at Maastro.

SimonJolly at 20:27, 7 October 2025

2025-10-07T20:27:09Z

← Older revision		Revision as of 20:27, 7 October 2025
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	== QuARC Development ==		== QuARC Development ==

	*		* Reduce scintillator sheet thickness/photodiode spacing to 2.5 mm.
			* Improve manufacturing process and surface finish.
			* Move from 2 to 4-sided photodiode readout.
			* Replace individual photodiodes with 16-element arrays.
			* Daisy-chain electronics around 4 sides of single module.
			* Increase scintillator area to 150 × 150 mm.

	==~~Scintillators and PD~~==		=== Scintillator Development ===

	* ~~Scintillators uniform in~~ thickness ~~(3mm) and flatness~~.		* Existing scintillator sheets need machining on Datron to improve quality and reduce thickness to 2.5 mm: '''HB'''.
	* Machine block clear polished sheets.		* Superior quality scintillator blanks needed from Nuvia: '''HB''' and '''SJ''' to liaise with '''Hana Buresova'''.
	* ~~For 245 MeV, is it doable~~ to ~~do 1 module of 32 PD~~ with ~~the 2~~.~~8mm thick and then 3 modules of 32 PD with scintillators 3mm thick?~~		* Move to larger area scintillator sheets once 100 mm sheet production refined.
	* ~~For low energy just 1 module of 2.8mm~~
	* Photodiodes are OK, there are no issues in the coupling.

	==~~DAQ & Electronics~~==		=== Scintillator Modules ===

	Redesign ~~of the analog circuit~~. ~~The boards need a revision~~.		* Redesign scintillator stack holders for 4-sided readout: '''HB'''.
			* Individual modules must be self-contained and pre-cabled on 3 sides with only top-mounted USB-C I/O connector needing to be connected when assembling.

	* We want everything to connect via usb-C (currently there is only one usb-C cable that does not work properly and ~~it is a very long one). Did Saad discuss this with Marco? What was the outcome of the lab tests?~~		=== Photodiodes and Electronics ===
	* We need ~~all the power~~ to ~~come just from FPGA (5V, ~2A) ➾ the voltage regulator chips need~~ to go.
	* ~~Long usb~~-C ~~between the daugther board~~ and ~~the DDC will be removed,~~ and ~~the two can connect directly [daughter board - bridge usb C board -~~ (~~usb C cable~~) ~~- bridge board - DDC board]~~		* Front-end DDC boards need to shrink to accommodate Hamamatsu S12362 16-element arrays with 2.5 mm pitch: '''PH'''.
	* ~~FPGA from Saad had some glitches that need to be resolved~~. ~~Do we see those~~ with ~~Nexus as well as the usb104? ➾ On board fitting needs~~ to ~~be implemented~~		* Replace vertical USB-C connectors with horizontal and move to upstream end to match new 4-sided setup: '''PH''' to liaise with '''HB'''.

			=== DAQ and GUI ===

			* Replace Raspberry Pi/USB104 with QuADProBe Kria (see below): '''F'''.
			* Live GUI frequently unresponsive, needs resolving: '''JB'''.
			* Replace PapaParse with direct JSON input: '''JB'''.
			* Ensure post processing and replay fully functional to review previous beam tests: '''JB'''.

			=== Mechanical Design ===

			== QuADProBe Development ==

			* 250 micron square scintillating fibre arrays: '''RR'''.
			* Hamamatsu digital S17285 photodiode array readout.
			* Kria-based DAQ

	==Calibration and data==		==Calibration and data==

SimonJolly at 19:46, 7 October 2025

2025-10-07T19:46:50Z

@@ Line 1: / Line 1: @@
 == Design Goals ==
@@ Line 11: / Line 19: @@
 == Current Status (October 2025) ==
 ==Scintillators and PD==
 * Scintillators uniform in thickness (3mm) and flatness.
 * Machine block clear polished sheets.

SimonJolly: /* Design Goals */

2025-10-07T16:47:32Z

Design Goals

← Older revision		Revision as of 16:47, 7 October 2025
Line 5:		Line 5:
	* Coverage of “clinically relevant” transverse scanning area and range:		* Coverage of “clinically relevant” transverse scanning area and range:
	** 230 MeV/330 mm range.		** 230 MeV/330 mm range.
	** 5 cm× 5 cm scanning area.		** 5 cm × 5 cm scanning area.
	* Integration into single portable detector enclosure with single power and network inputs and nozzle mount.		* Integration into single portable detector enclosure with single power and network inputs and nozzle mount.
	* Full system control and display with web-based GUI from on-board DAQ.		* Full system control and display with web-based GUI from on-board DAQ.

SimonJolly at 16:47, 7 October 2025

2025-10-07T16:47:14Z

← Older revision		Revision as of 16:47, 7 October 2025
Line 1:		Line 1:
	==~~'''QuARC Goal'''~~==		== Design Goals ==

			* Real-time measurements of PBT beam range with sub-millimetre precision using plastic scintillator range telescope.
			* Real-time measurement of PBT beam spot size/position with sub-millimetre precision using scintillating fibre arrays.
			* Coverage of “clinically relevant” transverse scanning area and range:
			** 230 MeV/330 mm range.
			** 5 cm× 5 cm scanning area.
			* Integration into single portable detector enclosure with single power and network inputs and nozzle mount.
			* Full system control and display with web-based GUI from on-board DAQ.

	Measure the range of a 250 MeV proton beam with 0.1mm accuracy at 5 kHz, with no transverse position sensitivity in a 30 cm x 40 cm* field. The detector should be nozzle mounted and have all DAQ on board, with 1 power and 1 network connections to the outside world. It should be fully controlled by any web browser, and the GUI should include data review.		== Current Status (October 2025) ==

	~~''*Initially we will stick with a 10 cm x 10 cm field.''~~

	==Scintillators and PD==		==Scintillators and PD==

SoniaEscribano: /* Mechanical design */

2023-09-21T11:07:28Z

Mechanical design

← Older revision		Revision as of 11:07, 21 September 2023
Line 38:		Line 38:
	* How can we design the modules so they can attach and detach easily? ➾ We need a robust design but not rigid		* How can we design the modules so they can attach and detach easily? ➾ We need a robust design but not rigid
	* Power distribution?		* Power distribution?
	* Beam windows?		* Beam windows? Light tight?


	==Future beam tests==		==Future beam tests==

SoniaEscribano: /* Calibration and data */

2023-09-21T11:06:46Z

Calibration and data

← Older revision		Revision as of 11:06, 21 September 2023
Line 23:		Line 23:

	==Calibration and data==		==Calibration and data==
	Is it possible to calibrate the detector ~~withoy~~ a proton beam?		Is it possible to calibrate the detector without a proton beam?
	* Maybe an e- beam beta source?		* Maybe an e- beam beta source?
	* Modify the geant4 simulation to verify what E will we need so there is no quenching?		* Modify the geant4 simulation to verify what E will we need so there is no quenching?

SoniaEscribano: /* Calibration */

2023-09-21T11:06:30Z

Calibration

← Older revision		Revision as of 11:06, 21 September 2023
Line 22:		Line 22:
	* FPGA from Saad had some glitches that need to be resolved. Do we see those with Nexus as well as the usb104? ➾ On board fitting needs to be implemented		* FPGA from Saad had some glitches that need to be resolved. Do we see those with Nexus as well as the usb104? ➾ On board fitting needs to be implemented

	==Calibration==		==Calibration and data==
	Is it possible to calibrate the detector withoy a proton beam?		Is it possible to calibrate the detector withoy a proton beam?
	* Maybe an e- beam beta source?		* Maybe an e- beam beta source?

SoniaEscribano: /* QuARC Goal */

2023-09-21T11:06:08Z

QuARC Goal

← Older revision		Revision as of 11:06, 21 September 2023
Line 5:		Line 5:

	''*Initially we will stick with a 10 cm x 10 cm field.''		''*Initially we will stick with a 10 cm x 10 cm field.''


	==Scintillators and PD==		==Scintillators and PD==