Proton Calorimetry/Experimental Runs/2024/UCLHQuADProBe 2024-04
Experiment Equipment
| Item | Notes |
|---|---|
| Portable Enclosure | Modified Small Peli Case Wheeled. Features mount for scintillator stacks, front and back openings for beam, patch panel with ports. Mylar windows with 3D printed alignment plates: approximately light-tight. |
| Rev. D Scintillator stack 1 | 32 X x 105 mm, Y x 105 mm and Z x (approx) 3 mm sheets. Original injection moulded batch with polished edges and sanded faces. Containing sheets (ascending photodiode order, board upside down): 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168. Full stack thickness measurements (in mm): 95.75, 96.02, 96.09 = 95.95 |
| Rev. D Scintillator stack 2 | 32 X x 105 mm, Y x 105 mm and Z x (approx) 3 mm sheets. Machined block with polished edges and sanded faces. Containing sheets (ascending photodiode order, board upside down): 289, 268, 291, 277, 300, 264, 282, 276, 271, 285, 262, 280, 295, 281, 297, 290, 270, 284, 294, 299, 269, 302, 301, 296, 287, 263, 288, 293, 286, 265, 275, 292. Full stack thickness measurements (in mm): 96.89, 96.85, 96.70 = 96.81 |
| Rev. D Texas Instruments DDC232 custom circuit board (x2) | Housing 32x Hamamatsu S12915-16R photodiodes, coupled directly to scintillator sheets. Aligned by eye to scintillator sheets. |
| Nexys Video FPGA development board. | For interfacing between DDC232 and pi. |
| Raspberry pi5 | Control data acquisition + visualise GUI. |
| Power Strip: | To connect FPGA and daughter board. |
| DAQ laptop x1 | Back up option for data acquisition. |
| Control Laptop x2 | 1 for remote control, 1 for notes/web GUI. |
| D-LINK Network Hub | Set in experimental room to connect pi5, DAQ laptop + NPL devices |
| GL-Inet Router | Set in control room to take output from experimental room ethernet connection. Control laptops connected via ethernet or 5GHz WiFi. |
| Ethernet Cable x4 | To connect pi5 and DAQ laptop to network in the experimental room, hub to wall and in control room router to wall, and router to laptop. |
| MacBook Adapters x2: one for pi5 DAQ laptop one for DAQ laptop | |
| Spare Cables: | Usb-C |
| Gloves | For handling scintillator |
Schematic
Experiment Plan
1st Day: Tuesday 30th of April
2nd Day: Wednesday 1st of May
1) Shoot-through of old scintillator stack at 250MeV to check prior calibration. 50mm absorber -> scint stack -> pixel sensor -> TC -> water dump. Both directions for stack so will rotate midway through.
2) Shoot-through calibration of new scintillator stack 1 at 250MeV. 50mm absorber -> scint stack -> pixel sensor -> TC -> water dump. Both directions for stack so will rotate midway through.
3) Shoot-through calibration of new scintillator stack 1 at 250MeV. 50mm absorber -> scint stack 2 -> scint stack 1 -> pixel sensor -> TC -> water dump. Both directions for stack so will rotate midway through. Full QuARC cabling complete here.
3a) Background measurement of scintillator stacks 1+2
-- UCL: Add calibration files to appropiate file for GUI
4) Rotate gantry to front of case. Full system check at 160MeV with beam on axis. Check readout of TC and pixel sensor.
5) Range tests with on-axis beam at 70, 90, 110, 130, 150 and 170 MeV. Beam on axis.
6) TC calibration with 1 second beams at 110 MeV and 160 MeV.
7) Position tests for pixel sensor with manual adjustments in couch position. Check QuARC readout for nonlinearities.
8) Treatment plan single position range scan (if available from UCLH).
9) Treatment plan box field scan for 3 x 3 x 3cm and 5 x 5 x 5cm volumes (if available from UCLH).
10) Brain tumour scan (if available from UCLH).
If none of the treatment plans are available we may have to go through and do some of the position/energy steps manually.
Experiment Notes
Original data will be saved in pi5: /home/pi/GUI/v3.01b/UCLH/
A copy ot the hexadecimal files will be saved to: /unix/pbt/data/uclh
For each run three files will be generated:
- Run0xy.txt: raw hexadecimal data
- RunOxy_calibrated.txt: calibrated data with background subtraction. An average measurement is at the bottom with a run performed to it. Visualisation with acquisition on DAQ.html
- Run0xy_fitted_25Hz.txt: data averaged at 25Hz and fitted, with range and energy values extracted. This can be visualised in the REPLAY.html tab of the GUI.
Day 1 Technical Notes:
- 1 Photodiode in stack #3 broken (either the first or the end one) prior to the beam test.
- Position of the couch: -11.80cm, +82.20cm, 0.00cm, 0˚, 0˚, 0˚
- Position of the Gantry: +90˚, +42.10cm
- Stack connected using USB-C (long cable (1m Wuerth Elektronik) in the peli case, and short cable (15cm Multicomp Pro Short) is outside the peli case)
- FPGA and FMC Daughter board is located outside the peli case.
- Calibrated and fitted data of stack #3 is using photodiode position of stack #1, so it needs to be corrected in post processing.
| Run number | Detector | Beam Energy (MeV) | Current (nA) | Measurements | DDC232 FSR (pC) | DDC232 Integration Time (us) | Spot size (mm, FWHM) | Estimated Range (mm) | Comments | Photodiode QB Fit | Replay Fit |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Day 1, Tuesday 30/04/2024 | |||||||||||
| Machine QA Mode | |||||||||||
| 0 | Stack #3 | Background | - | 30000 (5.1s) | 12.5 | 170 (constant) | - | - | - | - | |
| 1 | Stack #3 | 245MeV | 10nA | 30000 | 12.5 | 170 (constant) | - | - | 50mm WET Absorber, Shoot through back | - | |
| 2 | Stack #3 | Background | - | 30000 | 12.5 | 170 (constant) | - | - | Rotate the stack | - | |
| 3 | Stack #3 | 245MeV | 10nA | 30000 | 12.5 | 170 (constant) | - | - | 50mm WET Absorber, Keep the rotated stack (Shoot through front) | - | |
| 4 | Stack #1 | Background | - | 29412 (5s) | 12.5 | 170 (constant) | - | - | - | - | |
| 5 | Stack #1 | 245MeV | 10nA | 29412 | 12.5 | 170 (constant) | - | - | 50mm WET Absorber, Shoot through back | - | |
| 6 | Stack #1 | 245MeV | 10nA | 29412 | 12.5 | 170 (constant) | - | - | 50mm WET Absorber, Rotate the stack (Shoot through Front) | - | |
| 7 | Stack #2 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | - | - | |
| 8 | Stack #2 | 245MeV | 10nA | 29412 | 12.5 | 170 (constant) | - | - | 50mm WET Absorber, Shoot through back | - | |
| 9 | Stack #2 | 245MeV | 10nA | 29412 | 12.5 | 170 (constant) | - | - | 50mm WET Absorber, Rotate the stack (Shoot through Front) | - | |
| Machine Clinical Mode, The gantry position +270˚, +42.10cm | |||||||||||
| 10 | Stack #1 - #2 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | - | - | |
| 11 | Stack #1 - #2 | 150MeV | 125nA | 29412 | 12.5 | 170 (constant) | - | - | 10Gy Total dose, (2Gy was too short no data obtained) | - | |
| 12 | Stack #1 - #2 | 150MeV | 125nA | 29412 | 12.5 | 170 (constant) | - | - | 50Gy Total dose, (10Gy was too short little data obtained) | - | |
| 13 | Stack #1 - #2 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | - | - | |
| 14 | Stack #1 - #2 | 150MeV | 125nA | 29412 | 12.5 | 170 (constant) | - | - | 190-200Gy Total dose | - | |
| 15 | Stack #1 - #2 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | - | - | |
| Machine Clinical Mode, The couch position is changing from -11.80cm to -12.80 to -13.80 to -10.80cm to -9.80cm and back to original position. Test was conducted for Tony's Pixel Censor at each different position described. (In the meantime no QuARC measurement is taken, due to noticeable high background) | |||||||||||
| 16 | Stack #1 - #2 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Pixel sensors (Tony's) turned off | - | |
| 17 | Stack #1 - #2 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Pixel sensors (Tony's) and TC (Sam's) turned off | - | |
| 18 | Stack #1 - #2 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Pixel sensors (Tony's) and TC (Sam's) turned off and moving away the power supply from the FPGA | - | |
| 19 | Stack #1 - #2 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Pixel sensors (Tony's) and TC (Sam's) turned off and moving away the Rasp pi from the FPGA | - | |
| 20 | Stack #1 - #2 | 173. (Need to find out) | - | 58824 (10s) | 12.5 | 170 (constant) | - | - | Pixel sensors (Tony's) and TC (Sam's) turned back on, 10 Gy Slice treatment plan | - | |
| 21 | Stack #1 - #2 | 173. (Need to find out) | - | 176471 (30s) | 12.5 | 170 (constant) | - | - | 5 Gy Slice treatment plan | - | |
| 22 | Stack #1 - #2 | (Need to find out) | - | 176471 | 12.5 | 170 (constant) | - | - | 2 Gy Slice treatment plan | - | |
| 23 | Stack #1 - #2 | (Need to find out) | - | 176471 | 12.5 | 170 (constant) | - | - | 2 Gy 3by3by3 cm box field treatment plan, (beam finished before the run is done (background at the end) | - | |
| 24 | Stack #1 - #2 | (Need to find out) | - | 176471 | 12.5 | 170 (constant) | - | - | 5 Gy 3by3by3 cm box field treatment plan (run interrupted at 88699 data) | - | |
| 25 | Stack #1 - #2 | (Need to find out) | - | 176471 | 12.5 | 170 (constant) | - | - | 10 Gy 3by3by3 cm box field treatment plan (run interrupted at 145729 data) | - | |
| 26 | Stack #1 - #2 | (Need to find out) | - | 176471 | 12.5 | 170 (constant) | - | - | 5 Gy 5by5by5 cm box field treatment plan (run interrupted at 123201 data) | - | |
| 27 | Stack #1 - #2 | (Need to find out) | - | 176471 | 12.5 | 170 (constant) | - | - | 2 Gy 5by5by5 cm box field treatment plan (run interrupted at 114497 data) | - | |
| 28 | Stack #1 - #2 | (Need to find out) | - | 176471 | 12.5 | 170 (constant) | - | - | 10 Gy 5by5by5 cm box field treatment plan (Quarc Lost Connection) | - | |
Day 2 Technical Notes:
- The couch position is slightly shifted to maintain consistency due to the positioning of the QA equipments is one section ahead (-11.80cm, +96.45cm, 0.00cm, 0˚, 0˚, 0˚)
- Find out the crazy noise in the first day DaQ is due to the delay switch setting in the FPGA set to 0 instead of 2.
| Run number | Detector | Beam Energy (MeV) | Current (nA) | Measurements | DDC232 FSR (pC) | DDC232 Integration Time (us) | Spot size (mm, FWHM) | Estimated Range (mm) | Comments | Photodiode QB Fit | Replay Fit |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Day 2, Wednesday 01/05/2024 | |||||||||||
| Troubleshooting the noticeable crazy background noise | |||||||||||
| 1 | Stack #1 | Background | - | 29412 (5s) | 12.5 | 170 (constant) | - | - | Before Grounding, Tested with other USB-stick (white blinking ones) | - | |
| 2 | Stack #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | USB changed back to the Yellow UCL ones | - | |
| 3 | Stack #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Extra Background Check | - | |
| 4 | Stack #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Connected to the Ground | - | |
| 5 | Stack #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Disconnected from the Ground | - | |
| 6 | Stack #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Switch back and on FPGA | - | |
| 7 | Stack #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Restart FPGA and, lid a bit open | - | |
| 8 | Stack #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | USB unplug and plug again | - | |
| 9 | Stack #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | USB change to white blinking ones | - | |
| 10 | Stack #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Tested using new long USB-C cable, lid on | - | |
| 11 | Stack #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Tested using new long USB-C cable, lid on | - | |
| Machine QA Mode | |||||||||||
| 12 | Stack #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Reading only 1 board | - | |
| 13 | Stack #1 | 245MeV | 10nA | 29412 | 12.5 | 170 (constant) | - | - | Total Dose 20000 MU, 50mm WET Absorber, Shoot through back | - | |
| 14 | Stack #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | - | - | |
| 15 | Stack #1 | 245MeV | 10nA | 29412 | 12.5 | 170 (constant) | - | - | Total Dose 20000 MU, 50mm WET Absorber, Rotated the Stack (Shoot through Front) | - | |
| 16 | Stack #2 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | - | - | |
| 17 | Stack #2 | 245MeV | 10nA | 29412 | 12.5 | 170 (constant) | - | - | Total Dose 20000 MU, 50mm WET Absorber, Shoot through Back | - | |
| 18 | Stack #2 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | - | - | |
| 19 | Stack #2 | 245MeV | 10nA | 29412 | 12.5 | 170 (constant) | - | - | Total Dose 20000 MU, 50mm WET Absorber, Rotated the Stack (Shoot through Front) | - | |
| The gantry position +270˚ | |||||||||||
| 20 | Stack #2 - #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Stack #2 is connected to USB-C, Stack #1 is daisy chain to stack #2 (the opposite to the normal way of doing it) | - | |
| 21 | Stack #2 - #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Extra Background | - | |
| 22 | Stack #2 - #1 | 150MeV | 125nA | 29412 | 12.5 | 170 (constant) | - | - | Total dose 20000 MU, 50mm WET Absorber | - | |
| 23 | Stack #2 - #1 | 150MeV | 250nA | 29412 | 12.5 | 170 (constant) | - | - | Total dose 20000 MU, 50mm WET Absorber (Calibration applied wrongly) | - | |
| 24 | Stack #2 - #1 | 150MeV | 250nA | 29412 | 12.5 | 170 (constant) | - | - | Total dose 20000 MU, 50mm WET Absorber | - | |
| 25 | Stack #2 - #1 | 150MeV | 250nA | 29412 | 12.5 | 170 (constant) | - | - | Total dose 20000 MU, 50mm WET Absorber, Repeated for Sam's test | - | |
| 26 | Stack #2 - #1 | 150MeV | 250nA | 29412 | 12.5 | 170 (constant) | - | - | Total dose 20000 MU, 50mm WET Absorber, Repeated for Sam's test | - | |
| 27 | Stack #2 - #1 | 150MeV | 250nA | 29412 | 12.5 | 170 (constant) | - | - | Total dose 20000 MU, 50mm WET Absorber, Repeated for Sam's test, no Calibration (backhground is not copied over) | - | |
| 28 | Stack #2 - #1 | 150MeV | 250nA | 29412 | 12.5 | 170 (constant) | - | - | Total dose 20000 MU, 50mm WET Absorber, Repeated for Sam's test, using run 21 for background | - | |
| 29 | Stack #2 - #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Extra Background | - | |
| 30 | Stack #2 - #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Extra Background | - | |
| 31 | Stack #2 - #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Extra Background | - | |
| Machine Clinical Mode | |||||||||||
| 32 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 (30s) | 12.5 | 170 (constant) | - | - | single spot SOBP Dose: 20Gy | - | |
| 33 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 | 12.5 | 170 (constant) | - | - | single spot SOBP Dose: 5Gy | - | |
| 34 | Stack #2 - #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Extra Background | - | |
| 35 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 | 12.5 | 170 (constant) | - | - | single spot SOBP Dose: 5Gy, repeated (lost connection with FPGA temporarily in the middle, beam stopped - acquisiton stopped at 97986) | - | |
| 36 | Stack #2 - #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | Extra Background, interrupted at 2420 | - | |
| 37 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 | 12.5 | 170 (constant) | - | - | Slice Treatment plan Dose: 10Gy, (lost connection with FPGA) | - | |
| 38 | Stack #2 - #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | unplug and re-plugged the FPGA power | - | |
| 39 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 | 12.5 | 170 (constant) | - | - | Slice Treatment plan Dose: 2Gy, SOBP with spot scan (stop at 127297) | - | |
| 40 | Stack #2 - #1 | (need to find out) | (need to find out) | 352491 (60s) | 12.5 | 170 (constant) | - | - | Slice Treatment plan Dose: 10Gy, initial position | - | |
| 41 | Stack #2 - #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | - | - | |
| 42 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 (30s) | 12.5 | 170 (constant) | - | - | Slice Treatment plan Dose: 10Gy, Couch position moves by 1 cm -> (from gantry perspective, the box on top of the couch move to the right by 1 cm, the beam enters the pixel sensor (tony's is shifted left by 1cm) | - | |
| 43 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 (30s) | 12.5 | 170 (constant) | - | - | Slice Treatment plan Dose: 10Gy, Couch position same as run 42 | - | |
| 44 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 (30s) | 12.5 | 170 (constant) | - | - | Slice Treatment plan Dose: 10Gy, Couch position same as run 42 | - | |
| 45 | Stack #2 - #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | - | - | |
| 46 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 (30s) | 12.5 | 170 (constant) | - | - | Slice Treatment plan Dose: 10Gy, Couch position moves by another 1 cm -> (from gantry perspective, the box on top of the couch move to the right by another 1 cm, the beam enters the pixel sensor (tony's is shifted left by 2cm) | - | |
| 47 | Stack #2 - #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | - | - | |
| 48 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 (30s) | 12.5 | 170 (constant) | - | - | Slice Treatment plan Dose: 10Gy, Couch position moves by 3 cm -> (from gantry perspective, the box on top of the couch move to the left by 3cm, the beam enters the pixel sensor (tony's is shifted right by 1cm) | - | |
| 49 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 (30s) | 12.5 | 170 (constant) | - | - | Slice Treatment plan Dose: 10Gy, Couch position moves by another 1 cm -> (from gantry perspective, the box on top of the couch move to the left by another 1 cm, the beam enters the pixel sensor (tony's is shifted right by 2cm) | - | |
| 50 | Stack #2 - #1 | Background | - | 29412 | 12.5 | 170 (constant) | - | - | - | - | |
| 51 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 (30s) | 12.5 | 170 (constant) | - | - | Back to initial position. Slice Treatment plan Dose: 10Gy, (started earlier when Tony says ready) | - | |
| 52 | Stack #2 - #1 | Background | - | 176471 (30s) | 12.5 | 170 (constant) | - | - | - | - | |
| 53 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 (30s) | 12.5 | 170 (constant) | - | - | 3by3by7cm box field Treatment plan Dose: 10Gy, (stop at 84328) | - | |
| 54 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 (30s) | 12.5 | 170 (constant) | - | - | 3by3by7cm box field Treatment plan Dose: 10Gy, repeat run 53 | - | |
| 55 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 (30s) | 12.5 | 170 (constant) | - | - | 3by3by7cm box field Treatment plan Dose: 10Gy, repeat run 53 | - | |
| 56 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 (30s) | 12.5 | 170 (constant) | - | - | 3by3by7cm box field Treatment plan Dose: 10Gy, (Lost connection to FPGA) | - | |
| 57 | Stack #2 - #1 | Background | - | 176471 (30s) | 12.5 | 170 (constant) | - | - | - | - | |
| 58 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 (30s) | 12.5 | 170 (constant) | - | - | 3by3by7cm box field Treatment plan Dose: 10Gy | - | |
| 59 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 (30s) | 12.5 | 170 (constant) | - | - | 5by5by5cm box field Treatment plan Dose: 5Gy (Takes about 16s), run the DaQ before the beam start. | - | |
| 60 | Stack #2 - #1 | (need to find out) | (need to find out) | 176471 (30s) | 12.5 | 170 (constant) | - | - | 5by5by5cm box field Treatment plan Dose: 5Gy, run the DaQ before the beam start, DaQ stopped at 143169 | - | |
| Machine QA Mode | |||||||||||
| 61 | Stack #2 - #1 | Background | - | 29412 (5s) | 12.5 | 170 (constant) | - | - | - | - | |
| 62 | Stack #2 - #1 | Background | - | 58824 (10s) | 12.5 | 170 (constant) | - | - | - | - | |
| 63 | Stack #2 - #1 | 150MeV | 400nA | 176471 (30s) | 12.5 | 170 (constant) | - | - | Initial position, Pristine Bragg Peak | - | |