Difference between revisions of "HRRL 7-30-09"

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| 1253|| -4 ||  164|| 0 || 1074|| 1400:-700:980 || 50 || 0.15
 
| 1253|| -4 ||  164|| 0 || 1074|| 1400:-700:980 || 50 || 0.15
 
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−
| 1253|| -7 || 93 || 0 ||  1274|| 1400:-700:980 || 50 ||  
+
| 1254|| -7 || 93 || 0 ||  1274|| 1400:-700:980 || 50 ||  
 
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|-
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| 1253|| -10 || 54 || 0 || 1075 || 1400:-700:980 || 50 || 0.05
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| 1255|| -10 || 54 || 0 || 1075 || 1400:-700:980 || 50 || 0.05
 
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|-
−
| 1253|| -10 || 54 || 0 || 1075 || 1400:-700:980 || 50 || cut current in half from 30 ma to 14 ma peak
+
| 1256|| -10 || 52 || 0 || 1047 || 1400:-700:980 || 50 || cut current in half from 30 ma to 14 ma peak
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| 1257|| 19 ||94 || 0 ||  1029|| 1400:-700:980 || 50 || cut current in half from 30 ma to 14 ma peak
 
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 +
 +
tasks:
 +
 +
hook up TDC done, only for metalica
 +
 +
plastika, done, works
 +
 +
make collimator bigger, done
 +
 +
GEM readout
 +
 +
TTL gate pulse to G1
 +
 +
install GEM MCLK
  
  
 
[http://wiki.iac.isu.edu/index.php/Mini-prototype#HRRL_runs] [[Mini-prototype#HRRL_runs]]
 
[http://wiki.iac.isu.edu/index.php/Mini-prototype#HRRL_runs] [[Mini-prototype#HRRL_runs]]

Latest revision as of 12:41, 31 July 2009

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 19.05 (middle) 190 0 1146 1400:-700:980 50 0.17
3 19.05 (middle) 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 1 141 0 1045 1400:-700:980 50 0.13
10 0.5 139 1100 1400:-700:980 50 0.13
11 0.25 289 2120 1400:-700:980 50 0.14
12 1400:-700:980 50
13 1400:-700:980 50


ADC + Scaler

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
1251 0.25 967 0 23594 1400:-700:980 50 0.04
1252 -1 224 0 1554 1400:-700:980 50 0.14
1253 -4 164 0 1074 1400:-700:980 50 0.15
1254 -7 93 0 1274 1400:-700:980 50
1255 -10 54 0 1075 1400:-700:980 50 0.05
1256 -10 52 0 1047 1400:-700:980 50 cut current in half from 30 ma to 14 ma peak
1257 19 94 0 1029 1400:-700:980 50 cut current in half from 30 ma to 14 ma peak


tasks:

hook up TDC done, only for metalica

plastika, done, works

make collimator bigger, done

GEM readout

TTL gate pulse to G1

install GEM MCLK


[1] Mini-prototype#HRRL_runs

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