HRRL 7-30-09

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Default HRRL running Conditions

[math]I_{peak}[/math] Pulse Width Rep Rate Energy
8 mA 100 ns 1 Hz 3 MeV


cable names

CH ID Description
2223A1 Front Scintillator
2223A2 Rear Scintilaltor
2223A3 ADC Gate From counting house to Experimental Cell
2223A4 TDC start pulse from counting house to experimental cell
2223A5 Coincidenc between front + rear Scint + Gun pulser to scaler channel 8
2223A6 Metalica sense wire 4
2223A7 G0 MCLK for
2223A8 Plastica sense wire 4
2223A9 scaler channel 4
2223A10 Front scintillator to ADC
2223A11 scaler channel 1
2223A12 DAQ trigger


HV Cables on DCs: Sense-A2, Guard-A3 and Field-A4

HV Chan Description
N470 Ch 0 Drift Chamber Sense
N470 Ch 1 Drift Chamber field
N470 Ch 2 Drift Chamber guard
N470 Ch 3 nothing
N471 Ch A R1 drift
N471 Ch B R1 foil
N471 Ch A Front and read PMTs


HV cables on scintillators: Front && rear PMTs-A8. Hv settings 1150 Volts(works). In counting room front-A1(BNC) and rear-A2(BNC).

Plan: A3 should be gate. A4 - Start for TDC. A12-trigger.

HV Settings on drift chambers S:F:G=1400:-700:980

Setup TIming

Accelerator sends the Gun gate to HRRL counting room on channel BM

The accelerator Gun gate starts our Stanford pulse generator.

The Stanford pulse generator outputs 2 pulses
one pulse is for the ADC gate and G1 trigger for V1495
The second pulse create a trigger for the DAQ

Singles scaler counts

Run Number Distance to Metalica's Feedthrough tip (cm) Metalica scaler counts scaler ch 4 Plastica Scaler Counts scaler ch 1 Rear PMT + Front PMT + Gun Pulse Counts Scaler Ch 8 Discriminator (mV) HV S:F:G
1 0 162 0 1004 1400:-700:980 50
2 1400:-700:980 50
3 1400:-700:980
4 1400:-700:980
5 1400:-700:980


[1] Mini-prototype#HRRL_runs