Proton Calorimetry/Experimental Runs/2016/Nov24-25

From PBTWiki
< Proton Calorimetry‎ | Experimental Runs‎ | 2016
Revision as of 17:50, 24 July 2017 by DanWalker (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

Include all details of experimental runs from Anastasia's PDFs.

PAGE UNDER CONSTRUCTION

Day 1 (November 24th)

Notes

  • Distance between the collimator exit and scintillator: 30 cm
  • Distance between the collimator exit and the start of the wheel: 3.7 cm
  • Distance between the scintillator edge and upstream edge of the wheel: 25.3 cm
  • Peak current estimate at -900 V (-100 mV threshold): 11.2 mA

2" PMT(UCL) + 3 cm Rate Tests

High Voltage (V) Trigger Rate + Additional Information Electronics Setup Collimator Size + Additional Information Run Number
-900 ST
  • Rate: 30 kHz
  • I (beam off): 151.65 μA
  • I (beam on): 152.35 μA
  • DC offet: -30
  • Rec. length: 456
  • Threshold: 40
  • Gate offset: 10
  • Short gate: 100
  • Long gate: 150
  • BL mean: 32
  • Charge sensitivity: 20 fc/LSB
 1.98 mm
  • Dose rate: 0.1
  • Arc current: 0 (just struck)
  • Gas flow: 1.1 cc/min
 N/A
-900 ST
  • Rate: 30 kHz @ -100 mV
  • Scattering foil current (SFC): 8 pA
 Pre-trigger: 50 ns 001 (~9,000 events in peak)
-900 ST Waveforms (~2 GB) 003
-900 ST
  • Rate: 50 kHz
  • SFC: 35 pA
  • I: 155.3 μA
  • Arc current: 0.1 mA
  • Gas flow: 1.1 cc/min
 004 (~12,000 events in peak)
-900 ST Waveforms (~2 GB) 006
-900 ST
  • Rate: 100 kHz
  • SFC: 35 pA
  • I 155.3 μA
  • Arc current: 0.1 mA
  • Gas flow: 1.1 cc/min
 007 (~10,000 events in peak)
Integrated dose after ~66 minutes of running: ~6
-900 ST
  • Rate:222 kHz
  • SFC: 140 pA
  • I: 180.6 μA
 Beam dropped Waveforms (~2 GB) 009 (~100 events in peak)
-900 ST Rerun of above (ADC) 010 (~10,000 events in peak)
-900 ST Waveforms (~1.9 GB) 012
Integrated dose after 17 minutes of running:
  • Dose A: 33.1
  • Dose B: 32.8
900 ST
  • Rate: 50 kHz
  • SFC: 15 pA
  • I: 153.2 μA
  • Arc current: just struck
  • Pulse height: ~460 mV
 013 (~10,000 events in peak)
-900 ST Waveforms (~1.5 GB) 015
-900 ST
  • Rate: 300 kHz
  • SFC: 0.3 nA
  • I: 197.5 μA
 016 (~1,000 events in peak)
-900 ST Waveforms (~2.5 GB) 018
-900 ST
  • Rate: 200 kHz
  • SFC: 0.1 nA
  • I: ~172 μA
 Pulse height ~1 V (900 mV) 019 (~5,000 events in peak)
-900 ST Beam energy dropping off towards end of (file?) DC offset: -35 Waveforms (~1.6 GB) 020
-900 ST Rerun ADC to ensure no clipping, beam shifted during run 021 (~5,000 events in peak)
-900 ST Second rerun, beam shifted 022
-900 ST Third rerun, improved stability but still shifting 023 (~3,500 events in peak)
-900 ST
  • Rate: 400 kHz
  • SFC: 0.5 nA
  • I: 210 μA
 024 (~2,000 events in peak)
-900 ST
  • Rate: 50 kHz
  • SFC: 15 pA
  • I: 153.1 μA
 Back to lower rates 026 (~10,000 events in peak)
-900 ST Waveforms (~1.5 GB) 027
Integrated dose after 92 minutes of running:
  • Dose A: 258.3
  • Dose B: 255.8
Simultaneous data collection with scope + digitiser using 50 Ω Leno splitter and barrels
-900 ST
  • Rate: 50 kHz
  • SFC: 16 pA
  • I: 153.3 μA
 DC offset: -30 028 (~20,000 events in peak)
-900 ST Waveforms collected at same time as scope (~1.5 GB) 029
-900 ST
  • Rate: 200 kHz
  • SFC: 100 pA
  • I: 168.5 μA
 030 (~10,000 events in peak)
-900 ST Waveforms in sync with scope (~1.2 GB) 031
-900 ST
  • Rate: 400 kHz
  • SFC: ~500 pA
  • I: (no record)
 Beam dropped during run 032 (~1,6000 events in peak)
-900 ST Waveforms in sync with scope (~1.5 GB) 035
-900 ST Rerun of ADC with stable beam 034 (~2,500 events in peak)
Integrated dose after 32 minutes of running
  • Dose A: 93.8
  • Dose B: 92.9

Scattering foil current vs scope rates

Scope Rate (kHz) Scattering Foil Current
25-30 8 pA
50 15 pA
100 kHz 35-36 pA
300 kHz 0.3 nA
200 kHz 0.1 nA
400 kHz 0.48 nA - 0.55 nA


Lecroy Scope Data

Absorber Position Rate File Directory File Numbers Notes
None (60 MeV Beam) N/A 30 kHz - 25 kHz 1.98mmcol_ratetests_30kHz 00-50: Binary Trigger: -100 mv, Acq. Window: 1 μs
None N/A 30 kHz 1.98mmcol_ratetests_30kHz_peakcount 00-50: Binary As above, Acq. Window: ~100 μs
None N/A 50 kHz 1.98mmcol_ratetests_50kHz 00-50: Binary Acq. Window: 1 μs, Trigger time: -400 ns
None N/A 50 kHz 1.98mmcol_ratetests_50kHz_peakcount 00-50: Binary Window: 100 μs, Trigger time: 0 ns
None N/A 100 kHz 1.98mmcol_ratetests_100kHz 00-50: Binary Window: 1 μs, Trigger time: 400 ns
None N/A 100 kHz 1.98mmcol_ratetests_100kHz_peakcount 00-50: Binary Window: 100 μs, Trigger time: 0 ns
None N/A 222 kHz 1.98mmcol_ratetests_250kHz 00-50: Binary Window: 1 μs, Trigger time: 400 ns
None N/A 222 kHz 1.98mmcol_ratetests_250kHz_peakcount 00-50: Binary Window: 100 μs, Trigger time: 0 ns
None N/A 50 kHz 1.98mmcol_ratetests_50kHz_retest 00-50: Binary Window: 1 μs, Trigger time: 400 ns
None N/A 300 kHz 1.98mmcol_ratetests_300kHz 00-50: Binary Window: 1 μs, Trigger time: 400 ns
None N/A 300 kHz 1.98mmcol_ratetests_300kHz_peakcount 00-50: Binary Window: 100 μs, Trigger time: 0 ns
None N/A 200 kHz 1.98mmcol_ratetests_200kHz_retest 00-50: Binary Window: 1 μs, Trigger time: 400 ns
None N/A 400 kHz 1.98mmcol_ratetests_400kHz 00-50: Binary Window: 1 μs, Trigger time: 400 ns
None N/A 400 kHz 1.98mmcol_ratetests_400kHz_peakcount 00-50: Binary Window: 100 μs, Trigger time: 0 ns
None N/A 50 kHz 1.98mmcol_ratetests_50kHz_finaltest 00-50: Binary Window: 1 μs, Trigger time: 400 ns
None N/A 50 kHz 1.98mmcol_caencomparison_50kHz 00-50: Binary (In sync with digitiser) Window: 1 μs, Trigger time: -400 ns
None N/A 200 kHz 1.98mmcol_caencomparison_200kHz >50: Binary (In sync with digitiser) Window: 1 μs, Trigger time: -400 ns
None N/A 400 kHz 1.98mmcol_caencomparison_400kHz >50: Binary (In sync with digitiser) Trigger threshold: -10 mV, Window: 1 μs, Trigger time: 400 ns
None N/A 400 kHz 1.98mmcol_caencomparison_400kHz_peakcount 00-50: Binary Window: 100 μs, Trigger time: 0ns

Day 2 (25th November)

High Voltage (V) Trigger Rate + Additional Information Electronics Setup Collimator Size + Additional Information Run Number
-900 ST
  • I (beam off): 151.45 μA
  • I (beam on): 151.50 μA
  • Rate: 50 kHz
 1.98 mm
  • Wheel: 0
 001 (~10,000 events in peak)
-900 ST SFC: 15 pA Waveforms (~1 GB) 002
-900 ST SFC: 18 pA Wheel: 20 003 (~8,000 events in peak)
-900 ST SFC: 19 pA Wheel: 40 004 (~8,000 events in peak)
-900 ST SFC: 19 pA Wheel: 60 005 (~8,000 events in peak)
-900 ST SFC: 19 pA Wheel: 80 006 (~8,000 events in peak)
-900 ST Wheel: 100 007 (~8,000 events in peak)
-900 ST Waveforms (~1 GB) 008
-900 ST Wheel: 110 009 (~8,000 events in peak)
-900 ST Wheel: 120 010 (~8,000 events in peak)
-900 ST Wheel: 130 011 (~8,000 events in peak)
-900 ST Wheel: 140 012 (~8,000 events in peak)
-900 ST Wheel: 145 013 (~8,000 events in peak)
-900 ST Wheel: 150 014 (~8,000 events in peak)
-900 ST Wheel: 151 015 (~8,000 events in peak)
-900 ST SFC: 16 pA Wheel: 155 016 (~8,000 events in peak)
-900 ST Wheel: 158 017 (~8,000 events in peak)
-900 ST Wheel: 160 018 (~8,000 events in peak)
-900 ST Wheel: 162 019 (~8,000 events in peak)
-900 ST Wheel: 165 020 (~8,000 events in peak)
-900 ST Wheel: 166 021 (~8,000 events in peak)
-900 ST Wheel: 167 022 (~7,000 events in peak)
-900 ST Wheel: 169 023 (~5,000 events in peak)
-900 ST Wheel: 170 024 (~4,000 events in peak)
-900 ST Wheel: 171 025 (~1,000 events in peak)
-900 ST Wheel: 173 026 (~150 events in peak)
-900 ST Wheel: 175 027 (~35 events in peak)
-900 ST Wheel: 176 028 (~35 in events in peak)
-900 ST SFC:16 pA Wheel: 164 029 (~8,000 events in peak)
-900 ST Wheel: 0 030 (~8,000 events in peak)
Integrated dose after 91 minutes of running
  • Dose A: 23.2
  • Dose B: 23.1

Wheel Equivalent PMMA Plates Tests

High Voltage (V) Trigger Rate + Additional Information Electronics Setup Collimator Size + Additional Information Run Number
-900 ST
  • Rate: 50 kHz
  • SFC: 18 pA
  • I : 152.75 μA
 Actual PMMA plate used: 7.24 mm PMMA corresponding to wheel pos. 40, 7.2 mm PMMA / 8.3 mm water, in the same position as the wheel 031 (~10,000 events in peak)
-900 ST Waveforms (~1 GB) 032
-900 ST 7.24 mm of PMMA upstream of beam (usual spot) 033 (~10,000 events in peak)
-900 ST Waveforms (~1 GB) 03
-900 ST PMMA corresponding to wheel pos. 80 / 13.4 mm PMMA / 15.6 mm water in the same position as the wheel 035 (~10,000 events in peak)
-900 ST Waveforms (~1 GB) 036
-900 ST 13.4 mm of PMMA upstream of beam (usual spot) 037 (~10,000 events in peak)
-900 ST Waveforms (~1 GB) 038
Integrated dose after 22 minutes of running
  • Dose A: 4.3
  • Dose B: 4.3

Lecroy Scope Data

Absorber Position Rate File Directory File Numbers Noets
Wheel 20
  • Rate: 50 kHz
  • SFC: 14 pA
 1.98mmcol_wheeltests_50kHz_4.2mm 00-50: Binary
  • Window: 1 μs
  • Trigger time: -400 ns
  • Trigger: -100 mV
  • ~305 mV amplitude
Wheel 100 1.98mmcol_wheeltests_50kHz_16.3mm 00-50: Binary Trigger: -50 mV
Wheel 140 1.98mmcol_wheeltests_50kHz_22.3mm 00-50: Binary Trigger: -35 mV
Wheel 158 1.98mmcol_wheeltests_50kHz_25mm 00-50: Binary Trigger: -20 mV
Wheel 169 1.98mmcol_wheeltests_50kHz_26.7mm 00-50: Binary Trigger: -15 mV
Wheel 173 1.98mmcol_wheeltests_50kHz_27.3mm 00-50: Binary Trigger: -15 mV
Wheel 182 1.98mmcol_wheeltests_50kHz_30mm 00-50: Binary Trigger: -15 mV
Integrated dose over 47 minutes of running
  • Dose A: 9.7
  • Dose B: 9.7
Retrieved from "https://www.hep.ucl.ac.uk/pbt/pbtWiki/index.php?title=Proton_Calorimetry/Experimental_Runs/2016/Nov24-25&oldid=968"