Difference between revisions of "2nCor Equipment"

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Go back [[2nCor_44]]
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=Apparatus Map=
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 +
==2017 IAC run on the 44 machine==
 +
 +
 +
[[Signal cable timing]]
 +
 +
[[ToF test with CF-252]]
 +
 +
[[Neutron&photon_rates_with_CF252]]
 +
 +
 +
 +
 +
 +
=== Detector layout===
 +
[[File:DetectorLayout.png | 300 px]]
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 +
Note: Detectors 102 and 282 are not installed as of march 2017
 +
 +
=== DAQ Setup===
 +
 +
DAQ wiring diagram:
 +
 +
[[ File:2NCorrWiring.png| 430px ]]
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 +
HV and threshold values for Aug. 2017 production runs
 +
 +
{| border="1" style="text-align: center"
 +
!Detector !! Phi Angle (Degrees) !! PMT Position  !!  HV !! Discriminator threshold
 +
|-
 +
| rowspan="2" | D30 ||  rowspan="2"| 30  || Top ||-1575  ||30 
 +
|-
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|| Bottom ||-1450  ||30 
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|-
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| rowspan="2" | D54 ||  rowspan="2"| 54  || Top ||-1400  ||30 
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|-
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|| Bottom ||-1350  ||30 
 +
|-
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| rowspan="2" | D78 ||  rowspan="2"| 78  || Top ||-1500  ||30 
 +
|-
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|| Bottom ||-1525  ||30 
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|-
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| rowspan="2" | D102 ||  rowspan="2"| 102  || Top ||-1400  ||30 
 +
|-
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|| Bottom ||-1300  ||30 
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|-
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| rowspan="2" | D126 ||  rowspan="2"| 126  || Top ||-1500  ||30 
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|-
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|| Bottom ||-1500  ||30 
 +
|-
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| rowspan="2" | D150 ||  rowspan="2"| 150  || Top ||-1500  ||40 
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|-
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|| Bottom ||-1500  ||40 
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|-
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| rowspan="2" | D210 ||  rowspan="2"| 210  || Top ||-1500  ||40 
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|-
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|| Bottom ||-1500  ||40 
 +
|-
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| rowspan="2" | D234 ||  rowspan="2"| 234  || Top ||-1500  ||30 
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|-
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|| Bottom ||-1500  ||30 
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|-
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| rowspan="2" | D258 ||  rowspan="2"| 258  || Top ||-1350  ||30 
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|-
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|| Bottom ||-1450  ||30 
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|-
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| rowspan="2" | D282 ||  rowspan="2"| 282  || Top ||-1500  ||50 
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|-
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|| Bottom ||-1500  ||50 
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|-
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| rowspan="2" | D306 ||  rowspan="2"| 306  || Top ||-1450  ||30 
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|-
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|| Bottom ||-1450  ||30 
 +
|-
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| rowspan="2" | D330 ||  rowspan="2"| 330  || Top ||-1450  ||30 
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|-
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|| Bottom ||-1500  ||30 
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|-
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|}
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 +
===Map for detectors-cables-TDC channels- ROOT variable===
 +
''' As of March 2017'''
 +
{| border="1" style="text-align: center"
 +
!Detector !! Phi Angle (Degrees) !! PMT Position !! Signal cable label  !!  HV cable label !! HV channel on Lecroy Mainframe !!  LED CH !! VNIM-ECL channel !! ROOT variable
 +
|-
 +
| rowspan="2" | D30 ||  rowspan="2"| 30 || Top || D30T0.1 || SHV101    || 4:L0.1||3-0 ||A-0|| evt.TDC[hit #][1]
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|-
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||Bottom ||D30B0.2 || SHV102    || 4:L0.2||2-0 ||A-1 ||evt.TDC[hit #][2]
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|-
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| rowspan="2" | D54 ||  rowspan="2"|54 || Top ||D54T2.1  ||SHV2.1    ||6:L2.1 ||2-2 ||A-2 || evt.TDC[hit #][3]
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|-
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||Bottom ||D54B2.2  ||SHV2.2    ||6:L2.2 ||1-0 || A-3 || evt.TDC[hit #][4]
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|-
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|rowspan="2" | D78||  rowspan="2"|78 || Top ||  D78T0.3 ||    SHV103 ||4:L0.3 ||3-2 ||A-4 ||  evt.TDC[hit #][5]
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|-
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||Bottom  ||D78B0.4  ||SHV104    ||4:L0.4 ||1-2 ||A-5 ||  evt.TDC[hit #][6]
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|-
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| rowspan="2" | D102 ||  rowspan="2"|102 || Top ||D102T1.1 ||SHV1.1    ||5:L1.1 ||3-15 || A-6|| evt.TDC[hit #][7]
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|-
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||Bottom || D102B1.2 || SHV1.2    ||5:L1.2 ||1-13 ||A-7 || evt.TDC[hit #][8]
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|-
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| rowspan="2" | D126 ||  rowspan="2"|126 || Top || D126T1.9 ||SHV1.9  ||5:L1.9 || 3-5|| B-0|| evt.TDC[hit #][9]
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|-
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||Bottom ||D126B1.10  ||SHV1.10    ||5:L1.10 ||2-5|| B-1|| evt.TDC[hit #][10]
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|-
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| rowspan="2" | D150 ||  rowspan="2"|150 || Top ||D150T0.5  ||SHV105    ||4:L0.5 || 2-7||B-2 || evt.TDC[hit #][11]
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|-
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||Bottom ||D150B0.6  ||SHV106    ||4:L0.6 ||1-5 ||B-3 || evt.TDC[hit #][12]
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|-
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| rowspan="2" | D210 ||  rowspan="2"|210 || Top ||D210T0.7  ||SHV107    ||4:L0.7 ||3-7||B-4 || evt.TDC[hit #][13]
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|-
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||Bottom  ||D210B0.8  ||SHV108    ||4:L0.8 ||1-7 ||B-5 || evt.TDC[hit #][14]
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|-
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| rowspan="2" | D234 ||  rowspan="2"|234 || Top ||D234T2.3 ||SHV2.3  ||6:L2.3 ||3-8 ||B-6 || evt.TDC[hit #][15]
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|-
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||Bottom  ||D234B2.4  || SHV2.4    ||6:L2.4 ||2-8|| B-7|| evt.TDC[hit #][16]
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|-
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| rowspan="2" | D258 ||  rowspan="2"|258 || Top ||D258T2.5  ||SHV2.5  ||6:L2.5 ||2-10 ||A-0 || evt.TDC[hit #][17]
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|-
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||Bottom ||D258B2.6  || SHV2.6    ||6:L2.6 ||1-8 || A-1|| evt.TDC[hit #][18]
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|-
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| rowspan="2" | D282 ||  rowspan="2"|282 || Top ||D282T1.7  ||SHV1.7  ||5:L1.7 ||3-10 || A-2|| evt.TDC[hit #][19]
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|-
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||Bottom || D282B1.8 ||SHV1.8    ||5:L1.8 ||2-13 ||A-3 || evt.TDC[hit #][20]
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|-
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| rowspan="2" | D306 || rowspan="2"|306 || Top ||D306T1.3  ||  SHV203  ||5:L1.3 ||2-15 ||A-4|| evt.TDC[hit #][21]
 +
|-
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||Bottom ||D306B1.4  ||SHV204  ||5:L1.4 ||1-10 ||A-5|| evt.TDC[hit #][22]
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|-
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| rowspan="2" | D330 ||  rowspan="2"|330 ||Top ||D330T1.5||shv205||5:L1.5 || 3-13|| A-6||evt.TDC[hit #][23] 
 +
|-
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||Bottom || D330B1.6|| shv206 ||5:L1.6 ||1-15 ||A-7 || evt.TDC[hit #][24] 
 +
|-
 +
||200 ns Pulse ||  ||    || || || || ||B-6|| R1DC->Draw("(TDC.TDC1190[2][31]-TDC.TDC1190[1][31])*0.1")
 +
|-
 +
||TDC start (beam gun) ||  ||    || || || || |||| evt.TDC1190[1][32]
 +
|-
 +
||He3Tube ||  ||    || || || || |||| R1DC->Draw("(evt.TDC1190[1][28]/10)");FF->Draw("PADC785N[3]")
 +
|}
 +
 +
==2016 run on 44 MeV ==
 +
 +
=== Detector layout===
 +
[[File:2nCorApp_081216.png | 200 px]]
 +
 +
The Xfig file for the above figure :  [[Media:2nCorApp_081216.xfig.txt]]
 +
 +
 +
===Map for detectors-cables-TDC channels- ROOT variable===
 +
 +
{| border="1" style="text-align: center"
 +
!Detector !! Phi Angle (Degrees) !! PMT Position !! Signal cable label  !!  HV cable label !! HV channel on Lecroy Mainframe !!  LED CH !! VNIM-ECL channel !! ROOT variable
 +
|-
 +
| rowspan="2" | D30 ||  rowspan="2"| 30 || Top || D30T001 || SHV101    || 4:L0.1||0 ||A-0|| evt.TDC[hit #][1]
 +
|-
 +
||Bottom ||D30B002 || SHV102    || 4:L0.2||1 ||A-1 ||evt.TDC[hit #][2]
 +
|-
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| rowspan="2" | D60 ||  rowspan="2"|60 || Top ||  ||    || || || ||
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|-
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||Bottom ||  ||    || || || ||
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|-
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|rowspan="2" | D90 ||  rowspan="2"|90 || Top ||  D90T003 ||    SHV103 ||4:L0.3 ||2 ||A-2 ||  evt.TDC[hit #][3]
 +
|-
 +
||Bottom  ||D90B004  ||SHV104    ||4:L0.4 ||3 ||A-3 ||  evt.TDC[hit #][4]
 +
|-
 +
| rowspan="2" | D120 ||  rowspan="2"|120 || Top ||D120T201 ||SHV201    ||5:L1.1 ||8 || B-0|| evt.TDC[hit #][9]
 +
|-
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||Bottom || D120B202 || SHV202    ||5:L1.2 ||9 ||B-1 || evt.TDC[hit #][10]
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|-
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| rowspan="2" | D150 ||  rowspan="2"|150 || Top ||D150T005  ||SHV105    ||4:L0.5 || 4||A-4 || evt.TDC[hit #][5]
 +
|-
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||Bottom ||D150B006  ||SHV106    ||4:L0.6 ||5 ||A-5 || evt.TDC[hit #][6]
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|-
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| rowspan="2" | D210 ||  rowspan="2"|210 || Top ||D225T007  ||SHV107    ||4:L0.7 || 6||A-6 || evt.TDC[hit #][7]
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|-
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||Bottom  ||D225B008  ||SHV108    ||4:L0.8 ||7 ||A-7 || evt.TDC[hit #][8]
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|-
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| rowspan="2" | D240 ||  rowspan="2"|240 || Top ||  ||    || || || ||
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|-
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||Bottom  ||  ||    || || || ||
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|-
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| rowspan="2" | D270 || rowspan="2"|270 || Top ||D270T203  ||  SHV203  ||5:L1.3 ||10 ||B-2 || evt.TDC[hit #][11]
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|-
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||Bottom ||D270B204  ||SHV204  ||5:L1.4 ||11 ||B-3 || evt.TDC[hit #][12]
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|-
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| rowspan="2" | D300 ||  rowspan="2"|300 || Top ||  ||  || || || ||
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|-
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||Bottom ||  ||    || || || ||
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|-
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| rowspan="2" | D330 ||  rowspan="2"|330 ||Top ||pch. pnl. 223E1||shv205||5:L1.5 || ||  B-4||evt.TDC[hit #][13] 
 +
|-
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||Bottom || pch. pnl 223E7 || shv206 ||5:L1.6 || ||B-5 || evt.TDC[hit #][14] 
 +
|-
 +
||200 ns Pulse ||  ||    || || || || |||| R1DC->Draw("(evt.TDC1190[2][16]-evt.TDC1190[1][16]
 +
 +
|}
  
 
=Detectors=
 
=Detectors=
Line 9: Line 208:
  
 
==e+e- spectrometer==
 
==e+e- spectrometer==
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 +
 +
==PNNL HpGe X-cooler==
 +
 +
[[PNNL_X-coolerII-GEM120P4]]
 +
 +
==Detector As Built ==
 +
 +
[[File:TwoNDetector.png||500px]]
 +
 +
[[File:TwoNDetector.pdf||700px]]
 +
 +
==GE He-3 detector==
 +
 +
 +
 +
[[File:GE_ReuterStokes.pdf]]
 +
 +
[[File:H3InCoincWGunPulse.jpg|550px]]
  
 
=DAQ electronics=
 
=DAQ electronics=
Line 17: Line 235:
  
 
CAEN N841
 
CAEN N841
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 +
 +
The pulse forming stage of the discriminator produces an output pulse whose width is adjustable in a range from 5 ns to 40 ns. Each channel can work both in Updating and Non-Updating mode according to on-board jumpers position. The discriminator thresholds are individually settable in a range from -1 mV to -255 mV (1 mV step), via an 8-bit DAC. The minimum detectable signal is -5 mV. The back panel houses VETO and TEST inputs, the OR output and the Current Sum output, which generates a current proportional to the input multiplicity, i. e. to the number of channels over threshold, at a rate of -1.0 mA per hit (-50 mV per hit into a 50 Ohm load) ±20%.
 +
 +
[[File:CAEN_N841_Manual.pdf]]
 +
 +
{| border="1"
 +
| LED output pulse width [arb. units] || Pulse width seen by the oscscope [ns]
 +
|-
 +
| 10 || 6.3
 +
|-
 +
| 20  || 6.6
 +
|-
 +
|40 || 7.1
 +
|-
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|60 || 7.6
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|-
 +
| 90 || 8.5
 +
|-
 +
| 120  || 9.5
 +
|-
 +
| 160  || 12.0 
 +
|-
 +
| 190  || 15.1
 +
|-
 +
| 230  || 24.8
 +
|-
 +
| 250  || 43.5
 +
|}
  
 
===NIM-ECL converter===
 
===NIM-ECL converter===
  
  
 +
Phillips Model 726
 +
 +
[[File:Phillip_726_Nim2ECL.pdf]]
  
 
==TDC==
 
==TDC==
 +
 +
TDC VME addresses
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 +
TDC1 = 1280
 +
 +
TDC2 = 2391
 +
 +
 +
Detector name convention
 +
: BLUT = Beam Left Upstream Top pmt
 +
 +
==3/19/15==
 +
;TDC channel Map (Thursday)
 +
{| border="1"
 +
| Detector || Angle ||TDC channel || NIM-ECL channel|| Patch Pannel # || ROOT vaiable
 +
|-
 +
| BLUT || 135 ||TDC 16 || in B ch 0 || 223A6    || evt.TDC[16]
 +
|-
 +
|  BLUB ||  135 || TDC 17 || in B ch 1|| 223A7|| evt.TDC[17]
 +
|-
 +
| BRT|| 270|| TDC 24||in A ch 0 ||223A14|| evt.TDC[24]
 +
|-
 +
| BRB|| 270|| TDC 25||in A ch 1 ||223A15|| evt.TDC[25]
 +
|-
 +
|-
 +
| BLDT || 45 ||TDC 26 || in A ch 2 || 223A16  || evt.TDC[26]
 +
|-
 +
|  BLDB ||  45 || TDC 27 || in A ch 3|| 223A17|| evt.TDC[27]
 +
|-
 +
|  Trig Delay ||  || TDC 30 || in A ch 6|| || evt.TDC[30]
 +
|-
 +
|  Photon flux monitor || 90 || TDC 29 || in A ch 5|| 223A10 || evt.TDC[29]
 +
|}
 +
 +
==3/24/15==
 +
;TDC channel Map 3/24/15
 +
{| border="1"
 +
| Detector || Angle ||Single hit TDC channel ||LED channel || NIM-ECL channel|| Patch Pannel # || ROOT vaiable ||MultiHit TDC channel
 +
|-
 +
| 1 top (BRT)|| 270|| 24|| 0 ||in A ch 0 ||223A5|| evt.TDC[24] || 8
 +
|-
 +
| 1 bottom (BRB)|| 270|| 25|| 1 ||in A ch 1 ||223A6|| evt.TDC[25] || 9
 +
|-
 +
| 2 top BLDT || 45 ||16 || 2|| in B ch 0 || 223A7  || evt.TDC[16]|| 0
 +
|-
 +
|  2 bottom BLDB ||  45 ||  17 || 3|| in B ch 1|| 223A8|| evt.TDC[17] ||1
 +
|-
 +
| 3  top  || 60 ||26 ||4 || in A ch 2 || 223A9  || evt.TDC[26]||10
 +
|-
 +
|  3 bottom  ||  60 || 27 || 5|| in A ch 3|| 223A10|| evt.TDC[27]||11
 +
|-
 +
| 4 top BLUT || 135 ||18 ||6|| in B ch 2 || 223A11    || evt.TDC[18]||2
 +
|-
 +
|  4 bottom BLUB ||  135 || 19 ||7|| in B ch 3|| 223A12|| evt.TDC[19]||3
 +
|-
 +
| 5 upstream  || 135 ||20 ||10|| in B ch 4 || 223A15    || evt.TDC[20]||4
 +
|-
 +
|  5 downstream||  135 || 21 ||11|| in B ch 5|| 223A16|| evt.TDC[21]||5
 +
|-
 +
| 6 upstream  || 135 || 30 || 12||in A ch 6 || 223A17    || evt.TDC[30]||14
 +
|-
 +
|  6 downstream ||  135 || 31 ||13|| in A ch 7|| 223A18|| evt.TDC[31]||15
 +
|-
 +
|  e+ spect ||  || 29 ||9|| in A ch 5||223A14 || evt.TDC[29]||13
 +
|-
 +
|  Trig Delay ||  || 22 ||14|| in B ch 6|| || evt.TDC[22]||6
 +
|}
 +
 +
[[DAQ pics]]
 +
 +
[[TDC calibration]]
 +
 +
==03/25/15==
 +
 +
[[Multi hit TDC timing]]
 +
 +
==Wiring Work==
 +
 +
* 3/25/2015
 +
** Sean and Glen examined all of the signals from detectors 1 through 6
 +
** We used the signal from the LEMO cables that go directly into the discriminator
 +
** We also used the scope's Acquire->Average option and set the average to 512; This allowed for a more reliable comparison between signals
 +
*** Note that the threshold can be adjusted and that the average will be biased toward smaller pulse heights if there is a lot of noise
 +
** Found an RG-62 cable connected between the bottom PMT of Det 3 and the patch panel A10
 +
*** Replaced with RG-58 cable
 +
** A10 cable also found to be RG-58 from the experiment room to the counting room; Signal on 3B was degraded in the control room
 +
*** Changed to A19 (RG-223 the whole length) and the signal looked similar to the others
 +
** Found that detector 5 top and bottom both were small and have the ~12 ns ringing
 +
*** Increased voltage to 1500V
 +
*** The non-extending gates from the discriminator will help with this
 +
*** Recommend a gate width of 20 to 25 ns from the discriminator to eliminate double pulsing from ringing on Det 5
 +
*** Should not matter for other detectors
 +
*** Will also not affect high energy neutrons since 6 MeV neutrons are 30 ns ToF at 1 meter
 +
** When testing was complete, verified that all cables are associated with the appropriate detector
 +
** Top/Bottom, Upstream/Downstream should not have been reversed for any detectors in the process but that has not been confirmed; this should be correctable in software
 +
 +
===SHV Pasternack connector 4100===
 +
 +
 +
[[File:PE4100.pdf]]
 +
 +
=== BNC Pasternack connector 4944 RG55===
 +
 +
[[File:PE4044.pdf]]
  
 
==ADC==
 
==ADC==
  
  
 +
=High Voltage Main Frame=
 +
==Lecroy HV mainfram PS==
 +
 +
[[HV_MainFrame_1458]]
 +
 +
 +
Channels 4-0 through 4-11 and 5-0 through 5-11 were tested successfully on 03/3/16.
 +
 +
=Accelerator=
 +
 +
==Beam spot flags==
 +
 +
Below is a picture of the three "flags" that you can use to the beam spot size using a phosphorus screen.
 +
 +
[[File:Flag5-6_44MeVmachine_IAC_9-11-2016.png | 200 px]]
 +
 +
=Software=
 +
 +
[[Evio2nt | here]] is the raw C code for "evio2nt", which is the program we use to create a ROOT tree from a .dat file.
 +
 +
Ntuple maker
 +
 +
To make the Tree containing the TDC, QDC, and PDC data run the following command
 +
 +
 +
source ~/CODA/setup
 +
 +
/home/daq/CODA/CODAreader/ROOT_V5.30/v775v792v785/evio2nt -fr8735.dat >/dev/null
 +
 +
rename the output file to a root file
 +
 +
mv r8735 r8735.root
 +
 +
root -l r8735.root
 +
 +
to draw a histogram for TDC channel 16
 +
 +
DAQ->Draw("evt.TDC[17]>>(4096,0,4096)");
 +
 +
 +
for the multihit TDC data taken with daq2
 +
 +
CODA/CODAreader/ROOT_V5.30/R1DC/evio2nt -fr4516.dat > /dev/null
 +
 +
R1DC->Draw("(evt.TDC1190[1][3])");
 +
 +
R1DC->Draw("(evt.TDC1190[1][6]-evt.TDC1190[2][6])/10>>(4096,-4096,4096)");
 +
 +
On 4/9/2015 the above should be 4000 channel = 400 ns
 +
 +
==Analyzing MultiHit TDC runs==
 +
 +
 +
setup ROOT on daq 2
 +
 +
source ~/src/root/root-5.34.00/bin/thisroot.csh
 +
 +
IN run 4481 the time difference between the two fake stop pulses seems to be 205.8 ns
 +
 +
 +
R1DC->Draw("(evt.TDC1190[2][6]-evt.TDC1190[1][6])/10");
 +
 +
The relative time of a hit in detector 1 top is given relative to the first fake stop hit using the command
 +
 +
R1DC->Draw("(evt.TDC1190[1][8]-evt.TDC1190[1][6])/10");
 +
 +
Doing the same plot above but this time sending it to a histogram with 1 ns bins
 +
 +
R1DC->Draw("(evt.TDC1190[1][8]-evt.TDC1190[1][6])/10 >> (1000,0,1000)")
  
 
[[2nCor_44]]
 
[[2nCor_44]]

Latest revision as of 21:53, 28 August 2017

Go back 2nCor_44

Apparatus Map

2017 IAC run on the 44 machine

Signal cable timing

ToF test with CF-252

Neutron&photon_rates_with_CF252



Detector layout

DetectorLayout.png

Note: Detectors 102 and 282 are not installed as of march 2017

DAQ Setup

DAQ wiring diagram:

2NCorrWiring.png

HV and threshold values for Aug. 2017 production runs

Detector Phi Angle (Degrees) PMT Position HV Discriminator threshold
D30 30 Top -1575 30
Bottom -1450 30
D54 54 Top -1400 30
Bottom -1350 30
D78 78 Top -1500 30
Bottom -1525 30
D102 102 Top -1400 30
Bottom -1300 30
D126 126 Top -1500 30
Bottom -1500 30
D150 150 Top -1500 40
Bottom -1500 40
D210 210 Top -1500 40
Bottom -1500 40
D234 234 Top -1500 30
Bottom -1500 30
D258 258 Top -1350 30
Bottom -1450 30
D282 282 Top -1500 50
Bottom -1500 50
D306 306 Top -1450 30
Bottom -1450 30
D330 330 Top -1450 30
Bottom -1500 30

Map for detectors-cables-TDC channels- ROOT variable

As of March 2017

Detector Phi Angle (Degrees) PMT Position Signal cable label HV cable label HV channel on Lecroy Mainframe LED CH VNIM-ECL channel ROOT variable
D30 30 Top D30T0.1 SHV101 4:L0.1 3-0 A-0 evt.TDC[hit #][1]
Bottom D30B0.2 SHV102 4:L0.2 2-0 A-1 evt.TDC[hit #][2]
D54 54 Top D54T2.1 SHV2.1 6:L2.1 2-2 A-2 evt.TDC[hit #][3]
Bottom D54B2.2 SHV2.2 6:L2.2 1-0 A-3 evt.TDC[hit #][4]
D78 78 Top D78T0.3 SHV103 4:L0.3 3-2 A-4 evt.TDC[hit #][5]
Bottom D78B0.4 SHV104 4:L0.4 1-2 A-5 evt.TDC[hit #][6]
D102 102 Top D102T1.1 SHV1.1 5:L1.1 3-15 A-6 evt.TDC[hit #][7]
Bottom D102B1.2 SHV1.2 5:L1.2 1-13 A-7 evt.TDC[hit #][8]
D126 126 Top D126T1.9 SHV1.9 5:L1.9 3-5 B-0 evt.TDC[hit #][9]
Bottom D126B1.10 SHV1.10 5:L1.10 2-5 B-1 evt.TDC[hit #][10]
D150 150 Top D150T0.5 SHV105 4:L0.5 2-7 B-2 evt.TDC[hit #][11]
Bottom D150B0.6 SHV106 4:L0.6 1-5 B-3 evt.TDC[hit #][12]
D210 210 Top D210T0.7 SHV107 4:L0.7 3-7 B-4 evt.TDC[hit #][13]
Bottom D210B0.8 SHV108 4:L0.8 1-7 B-5 evt.TDC[hit #][14]
D234 234 Top D234T2.3 SHV2.3 6:L2.3 3-8 B-6 evt.TDC[hit #][15]
Bottom D234B2.4 SHV2.4 6:L2.4 2-8 B-7 evt.TDC[hit #][16]
D258 258 Top D258T2.5 SHV2.5 6:L2.5 2-10 A-0 evt.TDC[hit #][17]
Bottom D258B2.6 SHV2.6 6:L2.6 1-8 A-1 evt.TDC[hit #][18]
D282 282 Top D282T1.7 SHV1.7 5:L1.7 3-10 A-2 evt.TDC[hit #][19]
Bottom D282B1.8 SHV1.8 5:L1.8 2-13 A-3 evt.TDC[hit #][20]
D306 306 Top D306T1.3 SHV203 5:L1.3 2-15 A-4 evt.TDC[hit #][21]
Bottom D306B1.4 SHV204 5:L1.4 1-10 A-5 evt.TDC[hit #][22]
D330 330 Top D330T1.5 shv205 5:L1.5 3-13 A-6 evt.TDC[hit #][23]
Bottom D330B1.6 shv206 5:L1.6 1-15 A-7 evt.TDC[hit #][24]
200 ns Pulse B-6 R1DC->Draw("(TDC.TDC1190[2][31]-TDC.TDC1190[1][31])*0.1")
TDC start (beam gun) evt.TDC1190[1][32]
He3Tube R1DC->Draw("(evt.TDC1190[1][28]/10)");FF->Draw("PADC785N[3]")

2016 run on 44 MeV

Detector layout

2nCorApp 081216.png

The Xfig file for the above figure : Media:2nCorApp_081216.xfig.txt


Map for detectors-cables-TDC channels- ROOT variable

Detector Phi Angle (Degrees) PMT Position Signal cable label HV cable label HV channel on Lecroy Mainframe LED CH VNIM-ECL channel ROOT variable
D30 30 Top D30T001 SHV101 4:L0.1 0 A-0 evt.TDC[hit #][1]
Bottom D30B002 SHV102 4:L0.2 1 A-1 evt.TDC[hit #][2]
D60 60 Top
Bottom
D90 90 Top D90T003 SHV103 4:L0.3 2 A-2 evt.TDC[hit #][3]
Bottom D90B004 SHV104 4:L0.4 3 A-3 evt.TDC[hit #][4]
D120 120 Top D120T201 SHV201 5:L1.1 8 B-0 evt.TDC[hit #][9]
Bottom D120B202 SHV202 5:L1.2 9 B-1 evt.TDC[hit #][10]
D150 150 Top D150T005 SHV105 4:L0.5 4 A-4 evt.TDC[hit #][5]
Bottom D150B006 SHV106 4:L0.6 5 A-5 evt.TDC[hit #][6]
D210 210 Top D225T007 SHV107 4:L0.7 6 A-6 evt.TDC[hit #][7]
Bottom D225B008 SHV108 4:L0.8 7 A-7 evt.TDC[hit #][8]
D240 240 Top
Bottom
D270 270 Top D270T203 SHV203 5:L1.3 10 B-2 evt.TDC[hit #][11]
Bottom D270B204 SHV204 5:L1.4 11 B-3 evt.TDC[hit #][12]
D300 300 Top
Bottom
D330 330 Top pch. pnl. 223E1 shv205 5:L1.5 B-4 evt.TDC[hit #][13]
Bottom pch. pnl 223E7 shv206 5:L1.6 B-5 evt.TDC[hit #][14]
200 ns Pulse R1DC->Draw("(evt.TDC1190[2][16]-evt.TDC1190[1][16]

Detectors

PMTs

http://www.hamamatsu.com/resources/pdf/etd/R580_TPMH1100E.pdf

Scintillators

e+e- spectrometer

PNNL HpGe X-cooler

PNNL_X-coolerII-GEM120P4

Detector As Built

TwoNDetector.png

File:TwoNDetector.pdf

GE He-3 detector

File:GE ReuterStokes.pdf

H3InCoincWGunPulse.jpg

DAQ electronics

Signal Processing

Discriminator

CAEN N841


The pulse forming stage of the discriminator produces an output pulse whose width is adjustable in a range from 5 ns to 40 ns. Each channel can work both in Updating and Non-Updating mode according to on-board jumpers position. The discriminator thresholds are individually settable in a range from -1 mV to -255 mV (1 mV step), via an 8-bit DAC. The minimum detectable signal is -5 mV. The back panel houses VETO and TEST inputs, the OR output and the Current Sum output, which generates a current proportional to the input multiplicity, i. e. to the number of channels over threshold, at a rate of -1.0 mA per hit (-50 mV per hit into a 50 Ohm load) ±20%.

File:CAEN N841 Manual.pdf

LED output pulse width [arb. units] Pulse width seen by the oscscope [ns]
10 6.3
20 6.6
40 7.1
60 7.6
90 8.5
120 9.5
160 12.0
190 15.1
230 24.8
250 43.5

NIM-ECL converter

Phillips Model 726

File:Phillip 726 Nim2ECL.pdf

TDC

TDC VME addresses

TDC1 = 1280

TDC2 = 2391


Detector name convention

BLUT = Beam Left Upstream Top pmt

3/19/15

TDC channel Map (Thursday)
Detector Angle TDC channel NIM-ECL channel Patch Pannel # ROOT vaiable
BLUT 135 TDC 16 in B ch 0 223A6 evt.TDC[16]
BLUB 135 TDC 17 in B ch 1 223A7 evt.TDC[17]
BRT 270 TDC 24 in A ch 0 223A14 evt.TDC[24]
BRB 270 TDC 25 in A ch 1 223A15 evt.TDC[25]
BLDT 45 TDC 26 in A ch 2 223A16 evt.TDC[26]
BLDB 45 TDC 27 in A ch 3 223A17 evt.TDC[27]
Trig Delay TDC 30 in A ch 6 evt.TDC[30]
Photon flux monitor 90 TDC 29 in A ch 5 223A10 evt.TDC[29]

3/24/15

TDC channel Map 3/24/15
Detector Angle Single hit TDC channel LED channel NIM-ECL channel Patch Pannel # ROOT vaiable MultiHit TDC channel
1 top (BRT) 270 24 0 in A ch 0 223A5 evt.TDC[24] 8
1 bottom (BRB) 270 25 1 in A ch 1 223A6 evt.TDC[25] 9
2 top BLDT 45 16 2 in B ch 0 223A7 evt.TDC[16] 0
2 bottom BLDB 45 17 3 in B ch 1 223A8 evt.TDC[17] 1
3 top 60 26 4 in A ch 2 223A9 evt.TDC[26] 10
3 bottom 60 27 5 in A ch 3 223A10 evt.TDC[27] 11
4 top BLUT 135 18 6 in B ch 2 223A11 evt.TDC[18] 2
4 bottom BLUB 135 19 7 in B ch 3 223A12 evt.TDC[19] 3
5 upstream 135 20 10 in B ch 4 223A15 evt.TDC[20] 4
5 downstream 135 21 11 in B ch 5 223A16 evt.TDC[21] 5
6 upstream 135 30 12 in A ch 6 223A17 evt.TDC[30] 14
6 downstream 135 31 13 in A ch 7 223A18 evt.TDC[31] 15
e+ spect 29 9 in A ch 5 223A14 evt.TDC[29] 13
Trig Delay 22 14 in B ch 6 evt.TDC[22] 6

DAQ pics

TDC calibration

03/25/15

Multi hit TDC timing

Wiring Work

  • 3/25/2015
    • Sean and Glen examined all of the signals from detectors 1 through 6
    • We used the signal from the LEMO cables that go directly into the discriminator
    • We also used the scope's Acquire->Average option and set the average to 512; This allowed for a more reliable comparison between signals
      • Note that the threshold can be adjusted and that the average will be biased toward smaller pulse heights if there is a lot of noise
    • Found an RG-62 cable connected between the bottom PMT of Det 3 and the patch panel A10
      • Replaced with RG-58 cable
    • A10 cable also found to be RG-58 from the experiment room to the counting room; Signal on 3B was degraded in the control room
      • Changed to A19 (RG-223 the whole length) and the signal looked similar to the others
    • Found that detector 5 top and bottom both were small and have the ~12 ns ringing
      • Increased voltage to 1500V
      • The non-extending gates from the discriminator will help with this
      • Recommend a gate width of 20 to 25 ns from the discriminator to eliminate double pulsing from ringing on Det 5
      • Should not matter for other detectors
      • Will also not affect high energy neutrons since 6 MeV neutrons are 30 ns ToF at 1 meter
    • When testing was complete, verified that all cables are associated with the appropriate detector
    • Top/Bottom, Upstream/Downstream should not have been reversed for any detectors in the process but that has not been confirmed; this should be correctable in software

SHV Pasternack connector 4100

File:PE4100.pdf

BNC Pasternack connector 4944 RG55

File:PE4044.pdf

ADC

High Voltage Main Frame

Lecroy HV mainfram PS

HV_MainFrame_1458


Channels 4-0 through 4-11 and 5-0 through 5-11 were tested successfully on 03/3/16.

Accelerator

Beam spot flags

Below is a picture of the three "flags" that you can use to the beam spot size using a phosphorus screen.

Flag5-6 44MeVmachine IAC 9-11-2016.png

Software

here is the raw C code for "evio2nt", which is the program we use to create a ROOT tree from a .dat file.

Ntuple maker

To make the Tree containing the TDC, QDC, and PDC data run the following command 


source ~/CODA/setup

/home/daq/CODA/CODAreader/ROOT_V5.30/v775v792v785/evio2nt -fr8735.dat >/dev/null

rename the output file to a root file 

mv r8735 r8735.root

root -l r8735.root

to draw a histogram for TDC channel 16 

DAQ->Draw("evt.TDC[17]>>(4096,0,4096)");


for the multihit TDC data taken with daq2 

CODA/CODAreader/ROOT_V5.30/R1DC/evio2nt -fr4516.dat > /dev/null

R1DC->Draw("(evt.TDC1190[1][3])");

R1DC->Draw("(evt.TDC1190[1][6]-evt.TDC1190[2][6])/10>>(4096,-4096,4096)");

On 4/9/2015 the above should be 4000 channel = 400 ns

Analyzing MultiHit TDC runs

setup ROOT on daq 2 

source ~/src/root/root-5.34.00/bin/thisroot.csh

IN run 4481 the time difference between the two fake stop pulses seems to be 205.8 ns 


R1DC->Draw("(evt.TDC1190[2][6]-evt.TDC1190[1][6])/10");

The relative time of a hit in detector 1 top is given relative to the first fake stop hit using the command 

R1DC->Draw("(evt.TDC1190[1][8]-evt.TDC1190[1][6])/10");

Doing the same plot above but this time sending it to a histogram with 1 ns bins 

R1DC->Draw("(evt.TDC1190[1][8]-evt.TDC1190[1][6])/10 >> (1000,0,1000)")

2nCor_44

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