Difference between revisions of "HRRL Positrons Jul 2012 Runs Setup"

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= 6 Way Cross and NaI Detectors =
 +
 +
== Crystal ==
 +
 +
NaI crystal sizes: 3”x3”
 +
 +
SAINT-GOBAIN
 +
 +
CRYSTAL & DETECTORS
 +
 +
MOD. 3M3/3
 +
 +
S/N:60002-8453-I
 +
 +
P/N:IA-1377
 +
 +
BICRON
 +
 +
 +
[[Media:SAINT-GOBAIN_3M33.PDF]]
 +
 +
[[File:SAINT-GOBAIN_3M33.png | 400 px]]
 +
 +
== 6 way cross ==
 +
http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=407005
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 +
[[File:hrrl-pos-jul-run-6-way-cross.png | 500 px]]
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[[File:hrrl-pos-jul-run-6-way-cross_and_NaI.png | 500 px]]
 +
 
= Targets =
 
= Targets =
  
Line 24: Line 54:
  
 
T2 is placed with vertical and horizantal angles of 45 degree with respect to the beamline.
 
T2 is placed with vertical and horizantal angles of 45 degree with respect to the beamline.
 +
 +
== Switching T2 ==
  
 
T2 was switched from 2 mm target to 1 mm target [[https://wiki.iac.isu.edu/index.php/Beam_Test_Jul_24_2012#Switching_T2 Switching Target]].
 
T2 was switched from 2 mm target to 1 mm target [[https://wiki.iac.isu.edu/index.php/Beam_Test_Jul_24_2012#Switching_T2 Switching Target]].
  
−
== Switching T2 ==
+
= T2 is facing Detector Right=  
 +
 
 +
T2 is facing Detector Right.
 +
 +
May be that is why detector right has less noise in its spectrum than detector left.
 +
Because to make it to detector left, photons goes through thicker tungsten.
 +
 
 +
[[File:hrrl_pos_jul2012_setup_T2_1.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_T2_2.jpg | 300 px]]
 +
[[File:hrrl_pos_jul2012_setup_T2_3.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_T2_4.jpg | 300 px]]
  
 
= Detectors setup =
 
= Detectors setup =
 +
 +
2" thick brick with 2" diameter hole placed at the exit of the vacuum window, then NaI detectors were placed next to the brick. The distance between NaI detector and the edge of the 6-way cross is
 +
 +
Detector Left:
 +
 +
[[File:hrrl_pos_jul2012_setup_DL_1.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_DL_2.jpg | 300 px]]
 +
[[File:hrrl_pos_jul2012_setup_DL_3.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_DL_4.jpg | 300 px]]
 +
[[File:hrrl_pos_jul2012_setup_DL_5.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_DL_6.jpg | 300 px]]
 +
[[File:hrrl_pos_jul2012_setup_DL_7.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_DL_8.jpg | 300 px]]
  
  
 +
Detector Right:
 +
 +
[[File:hrrl_pos_jul2012_setup_DR_1.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_DR_2.jpg | 300 px]]
 +
 +
 +
== Collimator Pb Brick ==
 +
 +
There is 2" thick Pb brick with 2" diameter hole to act as collimator.
 +
 +
[[File:hrrl_pos_jul2012_setup_Collimator_1.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_Collimator_2.jpg | 300 px]]
 +
[[File:hrrl_pos_jul2012_setup_Collimator_3.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_Collimator_4.jpg | 300 px]]
  
 
= ADC inputs =
 
= ADC inputs =
Line 46: Line 106:
  
 
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.
 
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.
 +
 +
[[File:hrrl_pos_jul2012_setup_ADC_input_1.jpg | 300 px]][[File:hrrl_pos_jul2012_setup_ADC_input_2.jpg | 300 px]]
 +
[[File:hrrl_pos_jul2012_setup_ADC_input_3.jpg | 300 px]][[File:hrrl_pos_jul2012_setup_ADC_input_4.jpg | 300 px]]
 +
[[File:hrrl_pos_jul2012_setup_ADC_input_5.jpg | 300 px]]
  
 
= TDC input =
 
= TDC input =
Line 53: Line 117:
 
CH0->start from the gun.  
 
CH0->start from the gun.  
  
−
CH1->95 ns delay of the start from gun.
+
CH1->95 ns delay of the start from gun (PS model 792, DUAL Delay moduale).
  
−
CH5->NaI Left.
+
CH5->Detector Right.
  
−
CH7->NaI Right.
+
CH6->Detector Left.
  
 
13->Gate for signal (generated whenever there is a electron gun pulse, then fast cleared if there is no coincidence).
 
13->Gate for signal (generated whenever there is a electron gun pulse, then fast cleared if there is no coincidence).
Line 64: Line 128:
  
 
CH10-> discriminated output of NaI Right.
 
CH10-> discriminated output of NaI Right.
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 +
 +
[[File:hrrl_pos_jul2012_setup_TDC_input_1.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_TDC_input_2.jpg | 300 px]]
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[[File:hrrl_pos_jul2012_setup_TDC_input_3.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_TDC_input_4.jpg | 300 px]]
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[[File:hrrl_pos_jul2012_setup_TDC_input_5.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_TDC_input_6.jpg | 300 px]]
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[[File:hrrl_pos_jul2012_setup_TDC_input_7.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_TDC_input_8.jpg | 300 px]]
  
 
= Scaler =
 
= Scaler =
  
 
The gun pulse connected to CH1 of the scaler . I thought I put it to CH0, may be somebody changed it.
 
The gun pulse connected to CH1 of the scaler . I thought I put it to CH0, may be somebody changed it.
 +
 +
[[File:hrrl_pos_jul2012_setup_TDC_input_7.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_TDC_input_8.jpg | 300 px]]
  
 
= HV power supply =
 
= HV power supply =
Line 78: Line 150:
  
 
Power supply right, top channel-> Scintillator 1
 
Power supply right, top channel-> Scintillator 1
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 +
 +
[[File:hrrl_pos_jul2012_setup_HVPS_1.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_HVPS_2.jpg | 300 px]]
 +
[[File:hrrl_pos_jul2012_setup_HVPS_3.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_HVPS_4.jpg | 300 px]]
  
 
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.
 +
[[File:hrrl_pos_jul2012_setup_HVPS_5.jpg | 300 px]]
  
 
= Wiring =
 
= Wiring =
  
 
  NaI dynode -->  474 Timing Amp (x20). (Dynode signal is weak.)
 
  NaI dynode -->  474 Timing Amp (x20). (Dynode signal is weak.)
 +
 +
[[File:hrrl_pos_jul2012_setup_wiring_1.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_wiring_2.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_wiring_3.jpg | 450 px]]
  
 
  Timing Amp -->  8CH CFD (CAEN Mod. N842). (DL-THR = 31, DR-THR = 52.)
 
  Timing Amp -->  8CH CFD (CAEN Mod. N842). (DL-THR = 31, DR-THR = 52.)
 +
 +
 +
 +
[[File:hrrl_pos_jul2012_setup_HVPS_1.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_HVPS_2.jpg | 300 px]]
 +
[[File:hrrl_pos_jul2012_setup_HVPS_3.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_HVPS_4.jpg | 300 px]]
 +
[[File:Hrrl pos jul2012 setup TDC input 6.jpg | 300 px]]
  
 
  8CH CFD    -->  Octal Discriminator (PS model 710). (To use its veto to get rid off RF noise.)
 
  8CH CFD    -->  Octal Discriminator (PS model 710). (To use its veto to get rid off RF noise.)
 +
 +
[[File:hrrl_pos_jul2012_setup_wiring_4.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_wiring_5.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_wiring_6.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_wiring_7.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_wiring_8.jpg | 300 px]]  [[File:hrrl_pos_jul2012_setup_wiring_9.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_wiring_10.jpg | 300 px]]
 +
 +
Octal Dis  -->  Octalgate Generator (GG 8000-01). (To combine multi-pulses to a single wide pulse.)
 +
 +
Octalgate  -->  Quad coincidence (LeCroy model 622). (To generate AND logic between Gun and signal.)
 +
                Logic is set as: (DL && GunTrig) && (DR && GunTrig) or (DL AND GunTrig) AND (DR AND GunTrig).
 +
 +
Quad Coin  -->  Octalgate Generator (GG 8000-01). (To get better pulse.)
 +
 +
 +
Octalgate 1  -->  ORTEC Gate & Delay Generator (416-06). (To create 6 micro-second delayed (from signal Gate) trigger )
 +
 +
Gate-Delay -->  SIS GmbH CH1. (Trigger for DAQ.)
 +
 +
Octalgate 2  --> DUAL timer ( CAEN Mod. N93B, at right side). (To do VETO for Gate). 
 +
                  Whenever there is a gun pulse, a gate generated and date taken. Then data is fast cleared.
 +
                  But when there is a coincidence between, 2 NaI detectors, fast clear is "VETO"ed. Then
 +
                  data was saved and the trigger comes 6 micro-second after the gate, then data is saved.
 +
 +
 +
[[File:Hrrl pos jul2012 setup TDC input 4.jpg  | 300 px]][[File:hrrl_pos_jul2012_setup_TDC_input_7.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_TDC_input_8.jpg | 300 px]]
 +
 +
[[File:hrrl_pos_jul2012_setup_wiring_11.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_wiring_12.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_wiring_13.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_wiring_14.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_wiring_15.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_wiring_16.jpg | 300 px]]
 +
 +
=DAQ Setup=
 +
 +
Pulse from the gun is always generating a gate. When there is a gate DAQ reads data. But the data is fast cleared, unless there is veto. veto is generated by the coincidence from the 2 NaI detector dynode signals. Dynode signals from 2 NaI detectors are discriminated with CFD, and cleared from RF noise (by forming a pulse to veto using RF trigger pulse), then sent to form coincidence. The coincidence formed with logic of (DL & GunTrig) & (DR & GunTrig), that is (detector left AND gun trigger) AND (detector right AND gun trigger).
 +
 +
 +
= Other Parts =
 +
 +
Sweeping dipole magnet:
 +
 +
[[File:hrrl_pos_jul2012_setup_sweeping_dipole.jpg | 300 px]]
 +
 +
 +
 +
Scintillators on accelerator side:
 +
 +
[[File:hrrl_pos_jul2012_setup_Scint_RL_1.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_Scint_RL_2.jpg | 300 px]]
 +
[[File:hrrl_pos_jul2012_setup_Scint_RL_3.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_Scint_RL_4.jpg | 300 px]]
 +
 +
 +
 +
Lay out of detectors:
 +
 +
[[File:hrrl_pos_jul2012_setup_1.jpg | 300 px]] [[File:hrrl_pos_jul2012_setup_2.jpg | 300 px]]

Latest revision as of 23:16, 28 March 2013

6 Way Cross and NaI Detectors

Crystal

NaI crystal sizes: 3”x3”

SAINT-GOBAIN

CRYSTAL & DETECTORS

MOD. 3M3/3

S/N:60002-8453-I

P/N:IA-1377

BICRON


Media:SAINT-GOBAIN_3M33.PDF

SAINT-GOBAIN 3M33.png

6 way cross

http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=407005

Hrrl-pos-jul-run-6-way-cross.png

Hrrl-pos-jul-run-6-way-cross and NaI.png

Targets

2 targets are from MIDWEST TUNGSTEN SERVICE.

0.040" x 1.50" x1.50". 99.95% Tungsten foils with four holes.

0.04" = 1.016 mm .

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.

Switching T2

T2 was switched from 2 mm target to 1 mm target [Switching Target].

T2 is facing Detector Right

T2 is facing Detector Right. 

May be that is why detector right has less noise in its spectrum than detector left. 
Because to make it to detector left, photons goes through thicker tungsten.

Hrrl pos jul2012 setup T2 1.jpg Hrrl pos jul2012 setup T2 2.jpg Hrrl pos jul2012 setup T2 3.jpg Hrrl pos jul2012 setup T2 4.jpg

Detectors setup

2" thick brick with 2" diameter hole placed at the exit of the vacuum window, then NaI detectors were placed next to the brick. The distance between NaI detector and the edge of the 6-way cross is

Detector Left:

Hrrl pos jul2012 setup DL 1.jpg Hrrl pos jul2012 setup DL 2.jpg Hrrl pos jul2012 setup DL 3.jpg Hrrl pos jul2012 setup DL 4.jpg Hrrl pos jul2012 setup DL 5.jpg Hrrl pos jul2012 setup DL 6.jpg Hrrl pos jul2012 setup DL 7.jpg Hrrl pos jul2012 setup DL 8.jpg


Detector Right:

Hrrl pos jul2012 setup DR 1.jpg Hrrl pos jul2012 setup DR 2.jpg


Collimator Pb Brick

There is 2" thick Pb brick with 2" diameter hole to act as collimator.

Hrrl pos jul2012 setup Collimator 1.jpg Hrrl pos jul2012 setup Collimator 2.jpg Hrrl pos jul2012 setup Collimator 3.jpg Hrrl pos jul2012 setup Collimator 4.jpg

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.

Hrrl pos jul2012 setup ADC input 1.jpgHrrl pos jul2012 setup ADC input 2.jpg Hrrl pos jul2012 setup ADC input 3.jpgHrrl pos jul2012 setup ADC input 4.jpg Hrrl pos jul2012 setup ADC input 5.jpg

TDC input

According to the setup on 27th:

CH0->start from the gun.

CH1->95 ns delay of the start from gun (PS model 792, DUAL Delay moduale).

CH5->Detector Right.

CH6->Detector Left.

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.


Hrrl pos jul2012 setup TDC input 1.jpg Hrrl pos jul2012 setup TDC input 2.jpg Hrrl pos jul2012 setup TDC input 3.jpg Hrrl pos jul2012 setup TDC input 4.jpg Hrrl pos jul2012 setup TDC input 5.jpg Hrrl pos jul2012 setup TDC input 6.jpg Hrrl pos jul2012 setup TDC input 7.jpg Hrrl pos jul2012 setup TDC input 8.jpg

Scaler

The gun pulse connected to CH1 of the scaler . I thought I put it to CH0, may be somebody changed it.

Hrrl pos jul2012 setup TDC input 7.jpg Hrrl pos jul2012 setup TDC input 8.jpg

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


Hrrl pos jul2012 setup HVPS 1.jpg Hrrl pos jul2012 setup HVPS 2.jpg Hrrl pos jul2012 setup HVPS 3.jpg Hrrl pos jul2012 setup HVPS 4.jpg

Power supply on the Scintillator left and right was in HRRL cell. The voltage on them were 500 V. Hrrl pos jul2012 setup HVPS 5.jpg

Wiring

NaI dynode -->  474 Timing Amp (x20). (Dynode signal is weak.)

Hrrl pos jul2012 setup wiring 1.jpg Hrrl pos jul2012 setup wiring 2.jpg Hrrl pos jul2012 setup wiring 3.jpg 

Timing Amp -->  8CH CFD (CAEN Mod. N842). (DL-THR = 31, DR-THR = 52.)


Hrrl pos jul2012 setup HVPS 1.jpg Hrrl pos jul2012 setup HVPS 2.jpg Hrrl pos jul2012 setup HVPS 3.jpg Hrrl pos jul2012 setup HVPS 4.jpg Hrrl pos jul2012 setup TDC input 6.jpg 

8CH CFD    -->  Octal Discriminator (PS model 710). (To use its veto to get rid off RF noise.)

Hrrl pos jul2012 setup wiring 4.jpg Hrrl pos jul2012 setup wiring 5.jpg Hrrl pos jul2012 setup wiring 6.jpg Hrrl pos jul2012 setup wiring 7.jpg Hrrl pos jul2012 setup wiring 8.jpg Hrrl pos jul2012 setup wiring 9.jpg Hrrl pos jul2012 setup wiring 10.jpg 

Octal Dis  -->  Octalgate Generator (GG 8000-01). (To combine multi-pulses to a single wide pulse.)

Octalgate  -->  Quad coincidence (LeCroy model 622). (To generate AND logic between Gun and signal.) 
                Logic is set as: (DL && GunTrig) && (DR && GunTrig) or (DL AND GunTrig) AND (DR AND GunTrig).

Quad Coin  -->  Octalgate Generator (GG 8000-01). (To get better pulse.)



Octalgate 1  -->  ORTEC Gate & Delay Generator (416-06). (To create 6 micro-second delayed (from signal Gate) trigger )

Gate-Delay -->  SIS GmbH CH1. (Trigger for DAQ.)

Octalgate 2  --> DUAL timer ( CAEN Mod. N93B, at right side). (To do VETO for Gate).  
                 Whenever there is a gun pulse, a gate generated and date taken. Then data is fast cleared.
                 But when there is a coincidence between, 2 NaI detectors, fast clear is "VETO"ed. Then
                 data was saved and the trigger comes 6 micro-second after the gate, then data is saved.


Hrrl pos jul2012 setup TDC input 4.jpgHrrl pos jul2012 setup TDC input 7.jpg Hrrl pos jul2012 setup TDC input 8.jpg

Hrrl pos jul2012 setup wiring 11.jpg Hrrl pos jul2012 setup wiring 12.jpg Hrrl pos jul2012 setup wiring 13.jpg Hrrl pos jul2012 setup wiring 14.jpg Hrrl pos jul2012 setup wiring 15.jpg Hrrl pos jul2012 setup wiring 16.jpg

DAQ Setup

Pulse from the gun is always generating a gate. When there is a gate DAQ reads data. But the data is fast cleared, unless there is veto. veto is generated by the coincidence from the 2 NaI detector dynode signals. Dynode signals from 2 NaI detectors are discriminated with CFD, and cleared from RF noise (by forming a pulse to veto using RF trigger pulse), then sent to form coincidence. The coincidence formed with logic of (DL & GunTrig) & (DR & GunTrig), that is (detector left AND gun trigger) AND (detector right AND gun trigger).


Other Parts

Sweeping dipole magnet:

Hrrl pos jul2012 setup sweeping dipole.jpg


Scintillators on accelerator side:

Hrrl pos jul2012 setup Scint RL 1.jpg Hrrl pos jul2012 setup Scint RL 2.jpg Hrrl pos jul2012 setup Scint RL 3.jpg Hrrl pos jul2012 setup Scint RL 4.jpg


Lay out of detectors:

Hrrl pos jul2012 setup 1.jpg Hrrl pos jul2012 setup 2.jpg

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