Proton Calorimetry/Experimental Runs/2017/Mar1-3

From PBTWiki

Jump to: navigation, search

Include all details from experimental runs.

PAGE UNDER CONSTRUCTION

Contents


01-02/03/2017

Hamamatsu Base + Standard 45 cm Cuboid Tests

High Voltage (V) Trigger Rate + Additional Information Electronics Setup Collimator Size + Additional Information Run Number
-900 ST I (Beam off): 150.15 μA
  • DC offset: -30
  • Rec. length: 456
  • Threshold: 40 LSB
  • Gate offset: 10
  • 6 mm collimator
  • 252.4 MeV beam
-800 ST
  • I (Beam off): 133.25 μA
  • I (Beam on): 240 μA
  • Beam energy: 252.4 MeV (runs 001 - 016)
  • BL mean: 32
  • Charge sens.: 20 fV/LSB
  • Long gate: 150 ns
5 second beam spill 001
-800 ST
  • Threshold: 40 LSB
  • Long gate: 50 ns
002
-800 ST
  • Threshold: 55 LSB
  • Long gate: 50 ns
003
-800 ST
  • Threshold: 55 LSB
  • Long gate: 50 ns
30 second beam spill 004
-800 ST
  • Threshold: 55 LSB
  • Long gate: 50 ns
005
-800 ST
  • Threshold: 55 LSB
  • Long gate: 50 ns
006
-800 ST
  • Threshold: 55 LSB
  • Long gate: 50 ns
007
-800 ST Increase acquisition gate to see pile up effect
  • Long gate: 150 ns
008
-800 ST
  • Long gate: 30 ns
009
-900 ST
  • Long gate: 30 ns
010
-1000 ST
  • I (beam off): 167 μA
  • I (beam on): ~269 μA
  • Long gate: 30 ns
011
-1000 ST
  • Long gate: 30 ns
012
-1000 ST
  • Long gate: 30 ns
013
-1000 ST
  • Long gate: 50 ns
014
-1000 ST
  • Long gate: 20 ns
015
-1000 ST
  • Long gate: 20 ns
016
-1000 ST 62 MeV beam (runs 017-019)
  • Long gate: 20 ns
62 MeV beam 017
-1000 ST
  • Long gate: 100 ns
018
-1200 ST
  • Long gate: 100 ns
019
-1200 ST 100 MeV beam (run 020)
  • Long gate: 100 ns
100 MeV beam 020
End of test beam

02-03/03/2017

Continuation of Hamamatsu Tests

High Voltage (V) Trigger Rate + Additional Information Electronics Setup Collimator Size + Additional Information Run Number
-1000 ST
  • I (beam off): 167.05 μA
  • I (beam on): ~240 μA
  • Rate: ~7 kHz at -7 mV threshold
  • 4 mm collimator
  • +6 mm collimator after first collimator
  • Long gate: 100 ns
  • Threshold: 55 LSB
  • 252.4 MeV beam
  • 30 second beam spill
021
-1000 ST
  • Rate: ~4-5 kHz
  • Gate offset: 20 ns
  • Long gate: 100 ns
  • Threshold: 55 LSB
022
-1000 ST
  • Rate: ~20 kHz
102.4 MeV beam 023
-1000 ST Beam shifted during run 024
-1000 ST Beam shifted during run 025
-1000 ST 62.4 MeV beam 026
-1000 ST
  • 4 mm collimator removed
  • 6 mm collimator moved to isocentre
  • Distance between collimator and detector increased
027
-1000 ST 252.4 MeV beam 028
-1000 ST
  • 70 A setting for synchrotron
All electronics as above 029
-1000 ST
  • 70 A setting for synchrotron
030
-1000 ST
  • 0 A, last quad off
  • Rate: ~300 kHz
031
-1000 ST
  • Second quad on, 35 A
  • Rate: ~150-200 kHz
032
-1000 ST
  • Second quad: 40 A
  • Rate: 100-200 kHz
  • Note: Best looking spectrums at 252 MeV so far
033
-1000 ST 034
-1000 ST
  • Rate: ~100 kHz
  • Chopper magnet to 470 A (435 by default), scraping on outer chopper dunip. (??)
  • Great spectra!
035
-1000 ST 036
-1000 ST 037
-1000 ST 038
-1000 ST 232.4 MeV 039
-1000 ST 040
-1000 ST
  • Rate: ~100-150 kHz
212.4 MeV 041
042
043
-1000 ST
  • Rate: ~100-150 kHz
192.4 MeV 044
-1000 ST
  • Rate: ~100-150 kHz
172.4 MeV 045
046
-1000 ST 047
-1000 ST 152.4 MeV 048
-1000 ST 049
-1000 ST 132.4 MeV 050
-1000 ST 051
-1000 ST Strange oscillating behaviour between two points at this energy 112.4 MeV 052
-1000 ST 053
-1000 ST 92.4 MeV 054
-1000 ST 055
-1000 ST 72.4 MeV 056
-1000 ST 057
-1000 ST 62.4 MeV 058
-1000 ST 059
-1000 ST Back to 112.4 MeV to investigate strange energy. At the beginning of the spill the small higher ADC count peak starts growing, then moves onto "main" peak and grow until the end of the run 112.4 MeV 060
-1000 ST
  • Rate: 28 kHz
061
-1000 ST
  • Rate: 2 kHz
64.2 MeV 062
-1000 ST
  • Rate: ~100 kHz
  • Count rate increasing by moving chopper
Peak shifts to lower ADC 063
-1000 ST
  • Settings as for run 062
  • Rate: 1-2 kHz
Peak shifts back up 064
-1000 ST
  • Rates to be increased again
  • Rate: ~20-30 kHz
Peak shifts down again 065
-1000 ST
  • Settings as for run 063
  • Rate: 100 kHz
066
-1000 ST Same oscillating behaviour as for energy 112 MeV, but a lit less extreme 067
-1000 ST
  • Keep increasing rates
  • Rate: 250-300 kHz
  • 228 A
068
-1000 ST
  • Nominal medical settings
  • Rate: 250 kHz
069
-1000 ST 070
-1000 ST
  • Rate: 400 kHz
5 second beam spill 071
-1000 ST
  • Rate: >400 kHz
  • Degrader: 20%
072
-1000 ST 073
-1000 ST Next step up in degrader, 50%. The data becomes invalid at this point. Flat top intensity: 8.8×109 074
-1000 ST
  • Rate: >400 kHz
  • Nominal medical beam settings
  • 30 second beam spill
  • 252.4 MeV beam
075
-1000 ST Waveforms (~500 MB) 076
-1000 ST
  • Current settings changed for lower rates
  • Rate: 300 kHz
Waveforms 077
End of test beam

Counts on integrated intensity monitor: 4,523,000 at 22:53 GMT Final count: 33,600,000 at 04:03 GMT 1×104 to 2×104 protons per count

Personal tools