Proton Calorimetry/Experimental Runs/2015/Dec21-22

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

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Day 1 (December 21st)

Notes

• Current at -1200 V: 200.9 μA (beam off)
• Some double peaks and very large signals present - noise of some sort?
• Background rate (-1200 V, beam off, 3 mm collimator): ~4 kHz
  • Threshold: -19.5 mV
  • Rise time: 2.5 ns (without averaging), 2.9 ns over 10 sweeps
  • Amplitude: ~75 mV over 10 sweeps
• Having the corridor lights on does NOT create enough light to trip the PMT and is acceptable! (Current goes up by 0.1 μA)
• Peak current estimate at -1100 V: 44 mA
  • Amplitude: 2.2 V
  • Width: ~20 ns

Hamamatsu Base + Enhanced Cuboid Tests

High Voltage (V)	Trigger	Rate + Additional Information	Electronics Setup	Collimator Size + Additional Information	Run Number
-1200	ST	Rate: ~4 kH	Rec. Length: 456 ns BL Mean: 32 Charge sens.: 20 pC/LSB Threshold: 40 LSB Gate offset: 20 ns Short gate: 50 ns Long gate: 100 ns DC Offset: 0 Pre-trigger: 48 ns	3 mm Background measurement (beam off)	001 (4,462 events)
-1200	ST	I: Tripped		3mm
-800	ST	Amplitude: 300 mV (-194 mV threshold) I: 152.5 μA Rate: ~500 kHz
-800	ST	I: 133.4 μA Rate: ~4 kHz Unstable beam	Long gate: 100 ns	Gas off (leakage) 0 arc current (±0.1 μA) 0.1 dose	002 (845,794 events)
-900	ST	I: 150.3 μA		Edge on peak	003-004
-1000	ST	I: 167.3 μA			005
-1100	ST	I: 184.1 μA		Peak shifted during running	006
-1100	ST	Rate: ~2 kHz - 25 kHz Unstable	Long gate: 200 ns	2 mm gas off 0 arc current	007 (~3,000 events in peaks)
-1100	ST	Rate ~19 kHz I: 184.1 μA Stable rate	Long gate: 200 ns	0.2 cc/minute Arc current ~0	008 (6,000 events in peak)
-1100	ST		Long gate: 250 ns		009
-1100	ST		Long gate: 150 ns		010
-1100	ST		Long gate: 100 ns		011
-1100	ST		Long gate: 200 ns (irrelevant)	Waveforms	012-14
-1100	ST	Rate: 14 kHz I: 184 μA Beam dropped due to preset time running out	PMMA is in range shifter box, upstream Long gate: 200 ns	2 mm + 5.07 mm of PMMA (1 plate)	015 (600,000 events)
-1100	ST		Long gate: 200 ns	Repeat above with larger stats	016 (1,000,000 events)
-1100	ST		Long gate: 100 ns		017 (1,000,000 events)
-1100	ST		Long gate: 100 ns	Waveforms (~2 GB)	019
-1100	ST	Rate: 1.3 kHz I: 183.99 μA	Long gate: 200 ns	9.8 mm of PMMA (1 plate)	020
-1100	ST		Long gate: 100 ns		021
-1100	ST		Long gate: 100 ns	Waveforms (~2 GB)	023
-1100	ST	Rate: 30 kHz	Long gate: 200 ns	Upped current at 0.1 mA	025 (300,000 events)
-1100	ST		Long gate: 100 ns		026 (300,000 events)
-1100	ST		Long gate: 100 ns	Waveforms (~2 GB)	027
-1100	ST		Long gate: 200 ns	17.94 mm of PMMA 9.04 mm + 8.9 mm, 2 plates	028 (400,000 events)
-1100	ST		Long gate: 100 ns	Waveforms (~2 GB)	031
-1100	ST		Long gate: 200 ns	19.94 mm of PMMA 9.04 mm + 10.9 mm, 2 plates	032 (400,000 events)
-1100	ST		Long gate: 100 ns		033 (300,000 events)
-1100	ST	I: 184 μA	Long gate: 100 ns		035 (400,000 events)
-1100	ST	Rate: 150 kHz I: 184.9 μA	Long gate: 200 ns	No PMMA	036 (2,000,000 events)
-1100	ST		Long gate: 100 ns		037 (2,000,000 events)
-1100	ST		Long gate: 100 ns	Waveforms (~2 GB)	039
-1100	ST		Long gate: 50 ns		040 (2,000,000 events)
-1100	ST		Long gate: 60 ns		041 (1,500,000 events)
-1100	ST		Long gate: 70 ns		042 (1,500,000 events)
-1100	ST		Long gate: 80 ns		043 (1,500,000 events)
-1100	ST		Long gate: 90 ns		044 (1,500,000 events)
Break for lunch
-1100	ST	Rate: 200 kHz I: 185.3 μA	Long gate: 200 ns		045 (2,000,000 events)
-1100	ST		Long gate: 100 ns		046 (2,000,000 events)
-1100	ST		Long gate: 50 ns		047 (2,000,000 events)
-1100	ST		Long gate: 50 ns	Waveforms (~2 GB)	049
-1100	ST	Rate: 400 kHz I: 209 μA	Long gate: 200 ns		050 (2,000,000 events)
-1100	ST		Long gate: 100 ns		051 (2,000,000 evvents)
-1100	ST		Long gate: 50 ns		052 (2,000,000 events)
-1100	ST		Long gate: 30 ns		053 (3,000,000 events)
-1100	ST		Long gate: 20 ns Short gate: 19 ns		054 (2,000,000 events)
-1100	ST	Note: Intrinsic spread in energy during running for ~1 s	Long gate: 20 ns Short gate: 19 ns	Waveforms (~2 GB)	056
-1100	ST		Gate offset: 1 ns Long gate: 30 ns		057 (2,500,000 events)
-1100	ST		Long gate: 20 ns		059 (2,000,000 events)
-1100	ST	Rate: 450-550 kHz I: 211.6 μA	Gate offset: 18 ns Long gate: 100 ns		060 (4,000,000 events)
-1100	ST		Gate offset: 10 ns Long gate: 50 ns		061 (4,000,000 events)
-1100	ST		Gate offste: 1 ns Long gate: 30 ns		062 (3,000,000 events)
-1100	ST		Gate offset: 1 ns Long gate: 20 ns		063 (3,000,000 events)
-1100	ST	I: 211.9 μA Rate: 450-500 kHz	Gate offset: 18 ns Long gate: 100 ns	Waveforms (~3 GB)	066

Day 2 (December 22nd)

Notes

• Current at -900 V: 150.2 μA (beam off)
• Rate at -900 V: 400 kHz (threshold: -194 mV)

Hamamatsu Base + Enhanced Cuboid Tests

High Voltage (V)	Trigger	Rate + Additional Information	Electronics Setup	Collimator Size + Additional Information	Run Number
-900	ST	Rate: 30 kHz Peak ~7000 ADC I: 150.2 μA	Long gate: 100 ns Gate offset: 18 ns		002 (1,000,000 events)
-950	ST	I: 158.8 μA Rate: 30 kHz Peak ~9000 ADC	Long gate: 100 ns		003 (3,000,000 events)
-950	ST		Long gate: 200 ns		004 (2,000,000 events)
-950	ST		Long gate: 50 ns		005 (1,000,000 events)
-950	ST		Long gate: 200 ns	Waveforms (~2 GB)	007
-950	ST	Rate: 60-50 kHz	Long gate: 100 ns		008 (2,000,000 events)
-950	ST	Rate: 50-40 kHz Current on beam dropped during run, creating shoulder	Long gate: 200 ns	5.07 mm of PMMA (1 plate) wd: scan	009 (2,000,000 events)
-950	ST	Rate: 70 kHz	Long gate: 200 ns		010 (2,000,000 events)
-950	ST		Long gate: 100 ns		011 (2,000,000 events)
-950	ST		Long gate: 200 ns	9.8 mm of PMMA (1 plate)	012 (2,000,000 events)
-950	ST		Long gate: 100 ns		013 (2,000,000 events)
-950	ST		Long gate: 200 ns	14.12 mm of PMMA (1 plate)	014 (2,000,000 events)
-950	ST		Long gate: 100 ns		015 (2,000,000 events)
-950	ST		Long gate: 200 ns	17.94 mm of PMMA 9.04 mm + 8.9 mm, 2 plates	016 (2,000,000 events)
-950	ST		Long gate: 100 ns		017 (2,000,000 events)
-950	ST	I: 158.7 μA	Long gate: 200 ns	19.94 mm of PMMA 9.04 mm + 10.9 mm, 2 plates	018 (2,000,000 events)
-950	ST		Long gate: 100 ns		019 (2,000,000 events)
-950	ST	Beam dropped	Long gate: 200 ns	21.70 mm of PMMA 9.04 mm + 12.66 mm, 2 plates	020 (1,000,000 events)
-950	ST	Repeat above run after beam drop	Long gate: 200 ns		021 (2,000,000 events)
-950	ST	Beam dropped	Long gate: 100 ns		022 (900,000 events)
-950	ST	Repeat above run after beam drop	Long gate: 100 ns		023 (1,500,000 events)
-950	ST		Long gate: 200 ns	0 mm PMMA	024 (2,000,000 events)
-950	ST		Long gate: 100 ns		025 (2,000,000 events)

Beam tests

High Voltage (V)	Trigger	Rate + Additional Information	Electronics Setup	Collimator Size + Additional Information	Run Number
-950	ST	Rate: ~700 kHz Amplitude has dropped	Long gate: 100 ns	1.3 mA current 0.2 cc/minute gas wd: tests	026 (1,500,000 events)
-950	ST		Long gate: 50 ns Gate offset: 10 ns	Focusing angle: 69.1°	027 (2,000,000 events)
-950	ST		Long gate: 30 ns Gate offset: 7 ns		028 (2,000,000 events)
-950	ST		Long gate: 200 ns Gate offset: 18 ns	Waveforms (~2 GB)	030
-950	ST	Rate: 600 kHz I: 183 μA	Long gate: 60 ns Gate offset: 10 ns	1.01 mA 4.9 dose rate 315 pA	031 (2,000,000 events)
-950	ST		Long gate: 60 ns Gate offset: 10 ns	Waveforms (~3.5 GB)	033
-950	ST	Rate: ~700 kHz (from extrapolation) "Standard" run	Long gate: 100 ns Gate offset: 18 ns	Arc current: 104 mA Scattering: 0.3 nA Dose rate: 0.6 Angle: 64.1°	034 (2,000,000 events)
-950	ST	Rate: >500 kHz (extrapolated)		Angle: 65.4° Dose: 3.5 Scattering: 0.22 nA	036 (2,000,000 events)
-950	ST	Rate: ~400 kHz (extrapolated) Higher amplitude		Angle: 66.5° Dose rate: 2.1 Scattering: 0.14 nA	036 (2,000,000 events)
-950	ST	Rate: ~200 kHz (extrapolated) Rate: ~200 kHz (measured on scope)		Angle: 67.6° Dose rate: 1.0 Scattering: 0.065 nA	037 (2,000,000 events)
-950	ST	Rate: ~100 kHz (extrapolated)		Angle: 68.5° Dose: 0.5 Scattering: 0.034 nA	038 (2,000,000 events)
-950	ST			Angle: 69.5° Dose: 0.2 Scattering: 0.014 na	039 (2,000,000 events)
-950	ST			Angle: 71.5° Dose: 0-0.1 Scattering: 0.0033 nA	040 (1,000,000 events)
-950	ST	Higher amplitude / ADC		Angle: 73.5° Dose: 0-0.1 Scattering: 0.0006 nA	041 (300,000 events)
-950	ST	Back to 71.5° to see where ADC peak is - back to normal	Rate (scope): ~88 ms ~20 kHz	Angle: 71.5°	042 (300,000 events
-950	ST	Shifted again		Angle: 73.5°	043 (100,000 events)
-950	ST			Angle: 66.5°	044 (1,000,000 events)
-950	ST			Angle: 65.4°	045 (1,000,000 events)
-950	ST	Scope rate: 730 ms ~1.2 kHz		Angle: 73.5°	047 (50,000 events)
-950	ST	Scan across arc current/dose rate to see if there are any shifts in ADC peak		Beginning: Dose: 0.4-0.5 Scattering: 0.029 nA Finishing dose: 3	048 (scan)
-950	ST	Rate: 500 kHz 2 ms at dose: 3	At ~600 kHz we get a shift due to frequency cutoff	Left peak: 7109 Right peak: 8894	049 (scan)
-950	ST	Rate: ~1.2 MHz (extrapolated)	Long gate: 100 ns	Dose: 13 Arc current: 1.7 mA Waveforms (2.7 GB)	051