Proton Calorimetry/Experimental Runs/2022/ClatterbridgeQuARC

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Detector Equipment

  • Stack A: 14 clear sheets of scintillator around 2.86 mm thick, with mylar foil for optical isolation, in C-section stack holder and coupled to single Rev. B DDC232 board.
  • Stack B: 11 clear sheets and 3 white painted sheets of scintillator with mylar foil for optical isolation (clear sheets), in C-section stack holder and coupled to single Rev. B DDC232 board.
  • DAQ using USB104 A7 FPGA and Raspberry Pi (running web GUI).

Preliminary Stack Configurations

Clatterbridge Stack A

1) Sheet Number: 61, thickness: 2.91 mm 2) Sheet Number: 63, thickness: 2.9 mm 3) Sheet Number: 69, thickness: 2.86 mm 4) Sheet Number: 65, thickness: 2.85 mm 5) Sheet Number: 70, thickness: 2.85 mm 6) Sheet Number: 64, thickness: 2.84 mm 7) Sheet Number: 81, thickness: 2.84 mm 8) Sheet Number: 83, thickness: 2.84 mm 9) Sheet Number: 85, thickness: 2.84 mm 10) Sheet Number: 73, thickness: 2.83 mm 11) Sheet Number: 74, thickness: 2.83 mm 12) Sheet Number: 78, thickness: 2.83 mm 13) Sheet Number: 71, thickness: 2.79 mm 14) Sheet Number: 77, thickness: 2.79 mm

Order: 81, 83, 65, 74, 69, 78, 61, 77, 63, 71, 70, 73, 64, 85

Average thickness: 2.843 mm Stack thickness (excluding mylar): 39.8 mm Stack thickness (including mylar): 40.3 mm

Clatterbridge Stack B

1) Sheet Number: 68, thickness: 2.78 mm 2) Sheet Number: 75, thickness: 2.78 mm 3) Sheet Number: 82, thickness: 2.78 mm 4) Sheet Number: 62, thickness: 2.77 mm 5) Sheet Number: 72, thickness: 2.77 mm 6) Sheet Number: 76, thickness: 2.77 mm 7) Sheet Number: 67, thickness: 2.76 mm 8) Sheet Number: 80, thickness: 2.76 mm 9) Sheet Number: 84, thickness: 2.76 mm 10) Sheet Number: 66, thickness: 2.74 mm 11) Sheet Number: 79, thickness: 2.74 mm

12) Sheet Number: 52, thickness: 3.02 mm 13) Sheet Number: 54, thickness: 3 mm 14) Sheet Number: 51, thickness: 2.97 mm

Order: 52, 79, 68, 66, 75, 82, 84, 62, 80, 72, 67, 76, 51, 54

Average thickness: 2.814 mm Stack thickness (excluding mylar): 39.4 mm Stack thickness (including mylar): 39.9 mm

Experiment Plan

  • 60 MeV pristine Bragg peak measurements (and with some absorber for different ranges?):
    • Stack A front and back.
    • Stack B front and back(?)
  • SOBP measurements (one type only?):
    • Stack A front and back.
    • Stack B front and back(?)


Experiment Notes

Stack A + NUC PC.

Run number Beam Energy (MeV) Current (nominal) (nA) Estimated Range (mm) Spot size (mm, FWHM) Degrader WET (mm) DDC232 FSR (pC) DDC232 Integration Time (us) Comments Photodiode QB Fit Replay Fit
0 Background - - N/A - 350 170 (constant) N/A
1 Background - - N/A - 300 170 (constant) N/A
2 Background - - N/A - 250 170 (constant) N/A
3 Background - - N/A - 200 170 (constant) N/A