Proton Calorimetry/Experimental Runs/2022/Jun16

Afternoon test at UCLH with photodiodes and CMOS sensor.

Experiment Equipment

Item	Notes
Network Hub	Set in control room to take output from experimental room ethernet connection. Control laptops connected via 5GHz WiFi.
Control Laptop x3	2 for remote control of CMOS sensor and FPGA, 1 for notes/web GUI.
Ethernet Cable x 3	To connect DAQ laptops to network in the experimental room, network hub to network in control room.
Portable Enclosure	Modified Big Zarges Waterproof Wheeled Equipment Case. Features mount for scintillator stack, front and back openings for beam, patch panel with ports for SHV, BNC, SMA, USB, Camera Link cables. Hole for sensor powering. Mylar windows with Al support mounted to internal face: approximately light-tight.
Rev. B Scintillator stack	49 (25 clear, 23 white painted and 1 black painted) X x 100 mm, Y x 100 mm and Z x (approx) 2.8 mm sheets in ascending order from the front/beam of the end of the scintillator. Sheet numbers from front to end (in beam direction gantry angle 270°): 79, 68, 73, 62, 81, 72, 64, 67, 65, 71, 78, 77, 74, 75, 85, 82, 83, 76, 70, 80, 69, 84, 63, 66, 61, 34, 43, 32, 8, 40, 37, 38, 47, 46, 33, 42, 9, 39, 44, 49, 50, 31, 1, 45, 3, 54, 5, 51, 26. Full stack thickness measurements (in mm): 138.12, 137.74, 137.74.
Rev. C Scintillator stack	32 X x 105 mm, Y x 105 mm and Z x (approx) 3 mm sheets (21 3.4 mm and 11 2.0 mm) in ascending order from the front/beam of the end of the scintillator. Sheet numbers from front to end (in beam direction gantry angle 90°): 117, 113, 134, 110, 108, 128, 107, 106, 127, 105, 104, 125, 103, 102, 124, 101, 98, 123, 97, 96, 122, 94, 93, 121, 92, 90, 120, 89, 88, 119, 87, 135. Full stack thickness measurements (in mm): 95.87, 95.96, 95.97.
DAQ laptop x2	Control CMOS sensor and photodiode acquisition.
ISDI CMOS sensor	sensor pixel dimension: 1030 x 1536. NO optical grease between scintillator and sensor. Connected to DAQ PC via Camera Link cable.
Nexys Video FPGA development board.	For interfacing between DDC232 and PC.
Rev. B Texas Instruments DDC232 custom circuit board (x3)	Each housing 16x Hamamatsu S12915-16R photodiodes, coupled directly to scintillator sheets. Aligned by eye to scintillator sheets.
Rev. C Texas Instruments DDC232 custom circuit board (x1)	Housing 32x Hamamatsu S12915-16R photodiodes, coupled directly to scintillator sheets. Aligned by eye to scintillator sheets.
Gloves	For handling scintillator

Schematic

Experiment Plan

Rev. B Prototype

• Background & calibration shoot-throughs (background at all 8 DDC232 full-scale ranges – likely 12.5 pC is most appropriate FSR)
• Pencil beams, 70-130 MeV, 10 MeV steps, in both directions into stack. For direction with Bragg peak in clear sheets, test 2 currents (high/low)

Rev. C Prototype

• Background & calibration shoot-throughs (12.5 pC FSR)
• Pencil beams, 70-110 MeV, 5 MeV steps, at clinical current.

Experiment Notes

Range calorimeter measurements with CMOS sensor + photodiodes.

Images from Sensor: /unix/www/html/pbt/wikiData/images/UCLH_Jun2022/CMOS

Photodiode hexadecimal data: /unix/pbt/data/uclh/20220616/DDC232

Run number	Beam Energy (MeV)	Estimated Range (mm)	Current (nA)	Spot size (mm, FWHM)	DDC232 FSR (pC)	DDC232 Integration Time (us)	Degrader WET (mm)	Comments	Photodiode QB Fit	CMOS QB Fit	PDL Comparison	Replay Fit
0	Background	N/A	N/A	N/A	350	170	0	room light off	N/A	N/A	N/A	N/A
1	Background	N/A	N/A	N/A	300	170	0	room light off	N/A	N/A	N/A	N/A
2	Background	N/A	N/A	N/A	250	170	0	room light off	N/A	N/A	N/A	N/A
3	Background	N/A	N/A	N/A	200	170	0	room light off	N/A	N/A	N/A	N/A
4	Background	N/A	N/A	N/A	150	170	0	room light off	N/A	N/A	N/A	N/A
5	Background	N/A	N/A	N/A	100	170	0	room light off	N/A	N/A	N/A	N/A
6	Background	N/A	N/A	N/A	50	170	0	room light off	N/A	N/A	N/A	N/A
7	Background	N/A	N/A	N/A	12.5	170	0	room light off (continued)	N/A	N/A	N/A	N/A
8	240	N/A	10	N/A	350	170	50	LH shoot through; 270° gantry; CMOS sensor saturated	N/A	N/A	N/A	N/A
9	240	N/A	10	N/A	12.5	170	50	LH shoot through; 270° gantry; CMOS sensor saturated	N/A	N/A	N/A	N/A
10	240	N/A	10	N/A	12.5	170	50	RH shoot through; 90° gantry; CMOS sensor saturated	N/A	N/A	N/A	N/A
11	200	N/A	90	N/A	12.5	170	50	RH shoot through; 90° gantry; CMOS sensor saturated;	N/A	N/A	N/A	N/A
12	200	N/A	20	N/A	12.5	170	50	RH shoot through; 90° gantry; CMOS sensor fine;	N/A	N/A	N/A	N/A
13	130	N/A	50	N/A	12.5	170	0	90° gantry; CMOS sensor slight saturation;	N/A	N/A	N/A	N/A
14	120	N/A	60	N/A	12.5	170	0	90° gantry; CMOS sensor saturated;	N/A	N/A	N/A	N/A
15	120	N/A	270	N/A	12.5	170	0	90° gantry; CMOS sensor saturated;	N/A	N/A	N/A	N/A
16	110	N/A	70	N/A	12.5	170	0	90° gantry; CMOS sensor saturated;	N/A	N/A	N/A	N/A
17	110	N/A	300	N/A	12.5	170	0	90° gantry; CMOS sensor saturated;	N/A	N/A	N/A	N/A
18	100	N/A	90	N/A	12.5	170	0	90° gantry; CMOS sensor saturated;	N/A	N/A	N/A	N/A
19	100	N/A	350	N/A	12.5	170	0	90° gantry; CMOS sensor saturated;	N/A	N/A	N/A	N/A
20	90	N/A	110	N/A	12.5	170	0	90° gantry; CMOS sensor fine;	N/A	N/A	N/A	N/A
21	90	N/A	400	N/A	12.5	170	0	90° gantry; CMOS sensor fine;	N/A	N/A	N/A	N/A
22	80	N/A	500	N/A	12.5	170	0	90° gantry; CMOS sensor fine;	N/A	N/A	N/A	N/A
23	70	N/A	700	N/A	12.5	170	0	90° gantry; CMOS sensor fine;	N/A	N/A	N/A	N/A
24	130	N/A	200	N/A	12.5	170	0	90° gantry; CMOS sensor saturated;	N/A	N/A	N/A	N/A
25	200	N/A	20	N/A	12.5	170	50	LH shoot through; 270° gantry; CMOS sensor fine;	N/A	N/A	N/A	N/A
26	130	N/A	200	N/A	12.5	170	0	270° gantry; CMOS sensor saturated;	N/A	N/A	N/A	N/A
27	120	N/A	270	N/A	12.5	170	0	270° gantry; CMOS sensor saturated;	N/A	N/A	N/A	N/A
28	110	N/A	300	N/A	12.5	170	0	270° gantry; CMOS sensor saturated;	N/A	N/A	N/A	N/A
29	100	N/A	350	N/A	12.5	170	0	270° gantry; CMOS sensor saturated;	N/A	N/A	N/A	N/A
30	90	N/A	400	N/A	12.5	170	0	270° gantry; CMOS sensor saturated;	N/A	N/A	N/A	N/A
31	80	N/A	500	N/A	12.5	170	0	270° gantry; CMOS sensor saturated;	N/A	N/A	N/A	N/A
32	70	N/A	700	N/A	12.5	170	0	270° gantry; CMOS sensor saturated;	N/A	N/A	N/A	N/A
33	background	N/A	N/A	N/A	12.5	170	0	RevC onwards; 270° gantry	N/A	N/A	N/A	N/A
34	240	N/A	13	N/A	12.5	170	50	LH shoot through; 270° gantry	N/A	N/A	N/A	N/A
35	240	N/A	13	N/A	12.5	170	50	RH shoot through; 90° gantry	N/A	N/A	N/A	N/A
36	110	N/A	300	N/A	12.5	170	0	90° gantry;	N/A	N/A	N/A	N/A
37	105	N/A	350	N/A	12.5	170	0	90° gantry;	N/A	N/A	N/A	N/A
38	100	N/A	350	N/A	12.5	170	0	90° gantry;	N/A	N/A	N/A	N/A
39	95	N/A	400	N/A	12.5	170	0	90° gantry;	N/A	N/A	N/A	N/A
40	90	N/A	400	N/A	12.5	170	0	90° gantry;	N/A	N/A	N/A	N/A
41	85	N/A	500	N/A	12.5	170	0	90° gantry;	N/A	N/A	N/A	N/A
42	80	N/A	500	N/A	12.5	170	0	90° gantry;	N/A	N/A	N/A	N/A
43	75	N/A	700	N/A	12.5	170	0	90° gantry;	N/A	N/A	N/A	N/A
44	70	N/A	700	N/A	12.5	170	0	90° gantry;	N/A	N/A	N/A	N/A

Crosstalk Measurements in D27 (25/07/22)

Aim: Measure crosstalk between sheets of detector prototypes used in UCLH beam test

Notes

• Rev. B DDC232 settings: 170us integration time and measured 10000 samples per run.
• Signal Generator settings: 0 ps delay, 500 kHz, 300 ns width, 5 ns leading edge and trailing edge, 6V high, 0V low.
• Fibre used: 25

Rev. B Prototype

Data saved in /unix/pbt/data/ucl/20220725/RevB

Run	Description	Full Scale Range (pC)	Graph	0	Background	12.5
1	Photodiode 1	12.5
2	Photodiode 2	12.5
3	Photodiode 3	12.5
4	Photodiode 4	12.5
5	Photodiode 5	12.5
6	Photodiode 6	12.5
7	Photodiode 7	12.5
8	Photodiode 8	12.5
9	Photodiode 9	12.5
10	Photodiode 10	12.5
11	Photodiode 11	12.5
12	Photodiode 12	12.5
13	Photodiode 13	12.5
14	Photodiode 14	12.5
15	Photodiode 15	12.5
16	Photodiode 16	12.5
17	Photodiode 17	12.5
18	Photodiode 18	12.5
19	Photodiode 19	12.5
20	Photodiode 20	12.5
21	Photodiode 21	12.5
22	Photodiode 22	12.5
23	Photodiode 23	12.5
24	Photodiode 24	12.5
25	Photodiode 25	12.5

Rev. C Prototype

Data saved in /unix/pbt/data/ucl/20220725/RevC

Run	Description	Full Scale Range (pC)	Graph
1	No material dark noise test	12.5