Material in counters:
- S1: quartz, 80 x 80 x 2 mm
- S2: quartz, 40 x 40 x 2 mm
- V0: scintillator, 40 x 40 x 5 mm, hole: circle, diameter = 5 mm
- V1: scintillator, 80 x 80 x 5, hole: circle, diameter = 8 mm.
- S3: scintillator, width = 15 mm, thickness = 1 mm, length = ~200 mm. It is covered by thin teflon tape, below 0.2 mm in total.
Counter voltages and thresholds
- S1_1: -1250 V, threshold: 120 mV
- S1_2: -1400 V, threshold: 120 mV
- S1_3: -1200 V. threshold: 120 mV
- S1_4: -1350 V, threshold: 120 mV
- S2: - 620 V, threshold: 250 mV
- V0: - 600 V, threshold: 100 mV
- V1: - 600 V, threshold: 50 mV
- S3: +1700 V, threshold: 230 mV
Counter positions (relative, displayed on movement controllers)
- S2: 83.2
- V0: 86.5
- V1: 52
- S3: +6 mm (Jura)
Maximum safe V1 position is 64! Do not exceed this value to avoid hitting the pipe wall with scintillator.
Trigger definitions:
(positive, vetoed)
- T1 = S1 * S2 * V0 * V1, scaler = 100
- T2 = T1 * S3, scaler = 1
- T3 = S1 * S2, scaler = 1000
- T4 = S3, scalers = 0
Typical count rates:
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