ELogs/MechanicalEngineering - Revision history

SimonJolly at 17:54, 5 August 2026

2026-08-05T17:54:04Z

← Older revision		Revision as of 17:54, 5 August 2026
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	<s>'''Items 1–5 to be completed by end of May'''</s>		<s>'''Items 1–5 to be completed by end of May'''</s>

	'''Items 1–5 to be completed by 18th September'''		'''Items 1–5 to be completed by 18th September'''

SimonJolly at 17:53, 5 August 2026

2026-08-05T17:53:53Z

Show changes

SimonJolly at 12:22, 5 August 2026

2026-08-05T12:22:39Z

← Older revision		Revision as of 12:22, 5 August 2026
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	* New DDC boards are H-shaped to accommodate updated USB-C cable routing and 4-sided photodiode arrays.		* New DDC boards are H-shaped to accommodate updated USB-C cable routing and 4-sided photodiode arrays.
	* Redesigned stack holders need to accommodate thinner scintillator sheets — and therefore a reduction in stack thickness from ≥96mm to ≥80mm — with identical transverse dimensions of 100mm x 100mm.		* Redesigned stack holders need to accommodate thinner scintillator sheets — and therefore a reduction in stack thickness from ≥96mm to ≥80mm — with identical transverse dimensions of 100mm x 100mm.
			* Mounting plate needed to interface with new Peli case support frame.

	=== Scintillator machining ===		=== Scintillator machining ===
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	* Lower quality “opaque” sheets need surface finishing improved.		* Lower quality “opaque” sheets need surface finishing improved.
	* Machine '''all''' sheets down to 2.5mm for new stacks.		* Machine '''all''' sheets down to 2.5mm for new stacks.
			* At least 128 sheets needed for 4×32-sheet modules.

			=== Peli case scintillator module holder frame ===

			* Change QuARC module and SciFi mounting system in Peli case to make modules easier to install and remove.
			* Raise support rails from the base of the Peli case to approximately level with the lid hinges.
			* Keep shock absorber mounts in base to retain vibration isolation.
	*		*

SimonJolly at 12:18, 5 August 2026

2026-08-05T12:18:46Z

← Older revision		Revision as of 12:18, 5 August 2026
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	# Nozzle mount		# Nozzle mount

	'''Items 1–5 to be completed by end of May'''		'''Items 1–5 to be completed by 18th September'''</s>

			<s>'''Items 1–5 to be completed by end of May'''</s>

	=== Redesigned scintillator stack holders ===		=== Redesigned scintillator stack holders ===
Line 28:		Line 30:
	* Lower quality “opaque” sheets need surface finishing improved.		* Lower quality “opaque” sheets need surface finishing improved.
	* Machine '''all''' sheets down to 2.5mm for new stacks.		* Machine '''all''' sheets down to 2.5mm for new stacks.
			*

	=== Modifications to Peli 1510 case after Prague/UCLH ===		=== Modifications to Peli 1510 case after Prague/UCLH ===

SimonJolly: /* To Do */

2026-03-30T17:06:25Z

To Do

← Older revision		Revision as of 17:06, 30 March 2026
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	# Scintillator machining		# Scintillator machining
	# Peli case scintillator module holder frame		# Peli case scintillator module holder frame
			# SciFi frame and holder
	# Kria and carrier board installation in Peli 1510 case		# Kria and carrier board installation in Peli 1510 case
	# Alignment frame		# Alignment frame
	~~# SciFi frame and holder~~
	# Cover/Alignment plates and markings		# Cover/Alignment plates and markings
	# Nozzle mount		# Nozzle mount

	'''Items ~~1–4~~ to be completed by end of May'''		'''Items 1–5 to be completed by end of May'''

	=== Redesigned scintillator stack holders ===		=== Redesigned scintillator stack holders ===
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	* Sheet thickness reduced from 3mm to 2.5mm		* Sheet thickness reduced from 3mm to 2.5mm
	* Updating photodiodes from [https://www.hamamatsu.com/eu/en/product/optical-sensors/photodiodes/si-photodiodes/S12915-16R.html S12915-16R] single element photodiodes to [https://www.hamamatsu.com/eu/en/product/optical-sensors/photodiodes/si-photodiode-array/si-photodiode-array/S12362-021.html S12362-021] 16-element arrays.		* Updating photodiodes from [https://www.hamamatsu.com/eu/en/product/optical-sensors/photodiodes/si-photodiodes/S12915-16R.html S12915-16R] single element photodiodes to [https://www.hamamatsu.com/eu/en/product/optical-sensors/photodiodes/si-photodiode-array/si-photodiode-array/S12362-021.html S12362-021] 16-element arrays.
	*		* New DDC boards are H-shaped to accommodate updated USB-C cable routing and 4-sided photodiode arrays.
			* Redesigned stack holders need to accommodate thinner scintillator sheets — and therefore a reduction in stack thickness from ≥96mm to ≥80mm — with identical transverse dimensions of 100mm x 100mm.

			=== Scintillator machining ===

			* Scintillator thickness needs to be reduced from 3mm to 2.5mm to accommodate photodiode spacing in new arrays.
			* Injection moulded sheets do not have parallel large faces.
			* Lower quality “opaque” sheets need surface finishing improved.
			* Machine '''all''' sheets down to 2.5mm for new stacks.

	=== Modifications to Peli 1510 case after Prague/UCLH ===		=== Modifications to Peli 1510 case after Prague/UCLH ===

SimonJolly: /* To Do */

2026-03-30T14:57:17Z

To Do

← Older revision		Revision as of 14:57, 30 March 2026
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	== To Do ==		== To Do ==

	~~'''To be completed by end of May'''~~		# Scintillator stack holder redesign
			# Scintillator machining
			# Peli case scintillator module holder frame
			# Kria and carrier board installation in Peli 1510 case
			# Alignment frame
			# SciFi frame and holder
			# Cover/Alignment plates and markings
			# Nozzle mount

	~~=== Redesigned Scintillator stack holders ===~~		'''Items 1–4 to be completed by end of May'''

	# Moving from 2-sided to 4-sided readout		=== Redesigned scintillator stack holders ===
	# Sheet thickness reduced from 3mm to 2.5mm
	# Updating photodiodes from S12915-16R single element photodiodes to [https://www.hamamatsu.com/eu/en/product/optical-sensors/photodiodes/si-photodiode-array/si-photodiode-array/S12362-021.html S12362-021] 16-element arrays.		* Moving from 2-sided to 4-sided readout
			* Sheet thickness reduced from 3mm to 2.5mm
			* Updating photodiodes from [https://www.hamamatsu.com/eu/en/product/optical-sensors/photodiodes/si-photodiodes/S12915-16R.html S12915-16R] single element photodiodes to [https://www.hamamatsu.com/eu/en/product/optical-sensors/photodiodes/si-photodiode-array/si-photodiode-array/S12362-021.html S12362-021] 16-element arrays.
			*

	=== Modifications to Peli 1510 case after Prague/UCLH ===		=== Modifications to Peli 1510 case after Prague/UCLH ===

SimonJolly: /* To Do */

2026-03-30T14:52:08Z

To Do

← Older revision		Revision as of 14:52, 30 March 2026
Line 2:		Line 2:

	== To Do ==		== To Do ==

			'''To be completed by end of May'''

			=== Redesigned Scintillator stack holders ===

			# Moving from 2-sided to 4-sided readout
			# Sheet thickness reduced from 3mm to 2.5mm
			# Updating photodiodes from S12915-16R single element photodiodes to [https://www.hamamatsu.com/eu/en/product/optical-sensors/photodiodes/si-photodiode-array/si-photodiode-array/S12362-021.html S12362-021] 16-element arrays.

	=== Modifications to Peli 1510 case after Prague/UCLH ===		=== Modifications to Peli 1510 case after Prague/UCLH ===
Line 111:		Line 119:

	=== Long Term ===		=== Long Term ===



	== Completed ==		== Completed ==

HarryBarnett: /* Modifications to Peli 1510 case after Prague/UCLH */

2025-07-29T14:26:17Z

Modifications to Peli 1510 case after Prague/UCLH

← Older revision		Revision as of 14:26, 29 July 2025
Line 7:		Line 7:
	Order of priority:		Order of priority:

	# Wheel holders.		# Wheel holders. > Designing
	# Lowered scintillator stack rail cross braces to reduce stack height to match alignment plates.		# Lowered scintillator stack rail cross braces to reduce stack height to match alignment plates. > sent to workshop, it should lower the stack by 5mm
	# End face studs to allow Peli case to stand vertically.		# End face studs to allow Peli case to stand vertically. > will do once wheel holder are done
	# Lid rails for electronics.		# Lid rails for electronics. > not started
	# Alignment plate positioning.		# Alignment plate positioning.
	# Prague nozzle mount		# Prague nozzle mount

SimonJolly at 12:59, 29 July 2025

2025-07-29T12:59:51Z

← Older revision		Revision as of 12:59, 29 July 2025
Line 14:		Line 14:
	# Prague nozzle mount		# Prague nozzle mount

	Aim for ~~1–3~~ in time for Trento beam test commencing '''28th September'''.		Aim for 1–4 in time for Trento beam test commencing '''28th September'''.

	==== Wheels & Mobility (Zarges) ====		==== Wheels & Mobility (Zarges) ====

SimonJolly at 12:58, 29 July 2025

2025-07-29T12:58:16Z

← Older revision		Revision as of 12:58, 29 July 2025
Line 9:		Line 9:
	# Wheel holders.		# Wheel holders.
	# Lowered scintillator stack rail cross braces to reduce stack height to match alignment plates.		# Lowered scintillator stack rail cross braces to reduce stack height to match alignment plates.
			# End face studs to allow Peli case to stand vertically.
	# Lid rails for electronics.		# Lid rails for electronics.
	# Alignment plate positioning.		# Alignment plate positioning.