HRRL 7-30-09

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 Metallica's Feedthrough tip (cm)	Metalica scaler counts scaler ch 4	Plastika Scaler Counts scaler ch 1	Rear PMT + Front PMT + Gun Pulse Counts Scaler Ch 8	HV S:F:G	Discriminator (mV)	Metalica counts/PMT+Gun pulse
1	0	162	0	1004	1400:-700:980	50	0.16
2	middle 19.05	190	0	1146	1400:-700:980	50	0.17
3	middle 19.05	38	0	1072	0:0:0	50	0.04
4	10.16	155	0	1020	1400:-700:980	50	0.15
5	-7.62	40	0	1053	1400:-700:980	50	0.037
6	7.62	154	0	1041	1400:-700:980	50	0.15
7	5.08	173	0	1229	1400:-700:980	50	0.14
8	2.54	138	0	1091	1400:-700:980	50	0.13
9	1	138	0	1091	1400:-700:980	50	0.13
10					1400:-700:980	50
11					1400:-700:980	50
12					1400:-700:980	50
13					1400:-700:980	50

[1] Mini-prototype#HRRL_runs