Difference between revisions of "HRRL Positrons Jul 2012 Runs Setup"
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Power supply on the Scintillator left and right was in HRRL cell. The voltage on them were 500 V. | Power supply on the Scintillator left and right was in HRRL cell. The voltage on them were 500 V. | ||
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Revision as of 22:55, 30 July 2012
Targets
2 targets are from MIDWEST TUNGSTEN SERVICE.
0.040" x 1.50" x1.50". 99.95% Tungsten foils with four holes.
Materiel certification
Fe 0.0011% Al 0.0010% Ni 0.0010% Si 0.0010% C 0.0010% N2 0.0020% O2 0.0070%
W 99.95% minimum.
File:CHIPs T1 TungstenTargetMatCert 0.8mm.pdf
T1 is placed with a vertical angle of 45 degree with respect to the beamline.
T2 is placed with vertical and horizantal angles of 45 degree with respect to the beamline.
Detectors setup
ADC inputs
Detector Left -> CH6
Detector Right -> CH5
Beam left Scintillator (between Q9 and Q10)-> CH9
Scintillator 1 (right next to the beam exit at the the 90 deg) -> CH2.
Battery -> CH13.
Note: There were some changes going on during the experiment. The above setup was according to the sent up on 27th of Jul. All the changes were recorded.
TDC input
According to the setup on 27th:
CH0->start from the gun.
CH1->95 ns delay of the start from gun.
CH5->NaI Left.
CH7->NaI Right.
13->Gate for signal (generated whenever there is a electron gun pulse, then fast cleared if there is no coincidence).
CH9-> discriminated output of NaI Left.
CH10-> discriminated output of NaI Right.
Scaler
The gun pulse connected to CH1 of the scaler . I thought I put it to CH0, may be somebody changed it.
HV power supply
We used 2CAEN Mod. N471 power supply. There are 2 of them. 2 for NaI and one for Scintilator1.
Power supply left, top channel-> NaI left
Power supply left, bottom channel-> NaI right
Power supply right, top channel-> Scintillator 1
Power supply on the Scintillator left and right was in HRRL cell. The voltage on them were 500 V.