Proton Calorimetry/Experimental Runs/2025/Trento 2025-03

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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 x2 1 for remote control of FPGA, 1 for notes/web GUI.
Ethernet Cable x 2 To connect DAQ laptop to network in the experimental room, control laptop to network in control room.
Portable Enclosure
Scintillator stacks 4 Modules (to cover the full clinical range, from 60 to 250 MeV)
Scintillating fibers module 1 2D Module
DAQ laptop x1 Control photodiode acquisition.
Nexys Video FPGA development board. For interfacing between DDC232 and PC.

Schematic

UCL_Setup.png

Experiment Plan

  1. Set up mains cabling and networking in treatment and control rooms.
    1. no beam
  2. Install Peli case on treatment couch.
    1. no beam
  3. Background
    1. no beam
  4. Calibration shoot-through measurements of 4 stack modules: either rotating case or modules for back shoot-through.
    1. 8 beam deliveries (2 beam deliveries (back and forth) per each module):
Run number Detector config Beam Energy (MeV) Beam Current (nA) Physical thickness (mm) D80 measured (mm) WET (mm) RSP Comments
33 Stack 1 front 245 18.8 (18.7) 95.95 198.69 98.24 1.024
34 Stack 1 back 245 18.8 (18.7) 95.95 198.74 98.19 1.023
36 Stack 2 front 245 18.8 (18.7) 96.81 198.51 98.42 1.016
37 Stack 3 front 245 18.8 (18.7) 95.48 199.78 97.15 1.017
40 Stack 4 front 245 18.8 (18.7) 94.07 202.26 94.67 1.006
41 Empty Box 245 18.8 (18.7) 0.012 296.93 0 0
42 No Box 245 18.8 (18.7) 0 296.90 0 0
  1. Pristine Bragg peak measurements at clinical current for full clinical range.
  2. FLASH measurements at 245 MeV.

Calibration

Run number Detector 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 Replay Fit
n Stack 1 245 MeV max min FSR that does not saturate the signal 170 Shoot through front N/A
n Stack 1 245 MeV max min FSR that does not saturate the signal 170 Shoot through back N/A
n Stack 1 Background - N/A - 170 N/A
n Stack 2 245 MeV max min FSR that does not saturate the signal 170 Shoot through front N/A
n Stack 2 245 MeV max min FSR that does not saturate the signal 170 Shoot through back N/A
n Stack 2 Background - N/A - 170 N/A
n Stack 3 245 MeV max min FSR that does not saturate the signal 170 Shoot through front N/A
n Stack 3 245 MeV max min FSR that does not saturate the signal 170 Shoot through back N/A
n Stack 3 Background - N/A - 170 N/A
n Stack 4 245 MeV max min FSR that does not saturate the signal 170 Shoot through front N/A
n Stack 4 245 MeV max min FSR that does not saturate the signal 170 Shoot through back N/A
n Stack 4 Background - N/A - 170 N/A
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