Difference between revisions of "PbBi 60cmLong Solenoid Collection Efficiency 2015"

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Positron Collection rates with '''60 cm''' long Solenoid
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{| border="1"
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| [[File:PositronEventWithSolenoid_09-16-15A.png|200px]]  ||[[File:PositronEventWith0.3Solenoid_09-16-15A.png|200px]] 
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|-
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| When the solenoid is 1.5 Tesla, a 10 MeV electron produces a 6.5 MeV photon that pair produces a 4.4 MeV positron and a 1 MeV electron  || Same Event but this time the solenoid is 0.3 Tesla and the positron hits the beam pipe, annihilates and makes two 511 keV photons
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|+ Sample Positron Production Events
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|}
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{| border="1"
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| [[File:PositronEventWithSolenoid_09-16-15B.png|200px]]  ||[[File:PositronEventWith0.3Solenoid_09-16-15B.png|200px]] 
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|-
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| When the solenoid is set to 1.5 Tesla, a 10 MeV electron produces three photons less than 1 MeV in the target, two of them compton scatter in the beam pipe || The same event but this time the electron produces only 1 photon than ionizes in the target
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|+ Sample Brem event producing no positrons
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|}
  
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With SS windows
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Positrons->Draw("sqrt(evt.BeamPosPosX*evt.BeamPosPosX+evt.BeamPosPosY*evt.BeamPosPosY)","evt.BeamPosMomZ>0 && evt.BeamPosPosZ>-500 && sqrt(evt.BeamPosPosX*evt.BeamPosPosX+evt.BeamPosPosY*evt.BeamPosPosY)<97.4/2");
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{| border="1"
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{| border="1"
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| B-field (Tesla) || || 34.8 mm diameter pipe || 47.5 || 60.2 || 72.9 || 97.4
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|-
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| 0.0  || 0.35 || 1,2,4,4,5 || 2,3,4,4,6 || 4,4,6,7,9 || 6,8,9,10,11 || 16,14,15,16,17
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|-
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| 0.1  ||  ||225,236,250,246,249=241<math> \pm</math> 10 || 282,282,293,294,306=291<math> \pm</math> 10 || 373,366,370,364,373=369<math> \pm</math> 4 || 451,437,440,438,451=443<math> \pm</math> 7 || 602,584,563,558,570=575<math> \pm</math> 18
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|-
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|  0.3    ||  0.35 || 626,619,596,619,611 =614<math> \pm</math> 11|| 720,726,706,730,717=720<math> \pm</math> 9|| 871,864,840,841,834 =850<math> \pm</math> 16|| 987,968,939,943,952 =958<math> \pm</math> 20|| 1118,1106,1069,1067,1080=1088<math> \pm</math> 23
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|-
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| 0.6  ||  ||929,935,949,969,961=949<math> \pm</math> 17 ||1022,1031,1046,1059,1052 =1042<math> \pm</math> 15 || 1120,1130,1152,1154,1146 =1140<math> \pm</math> 15|| 1168,1184,1210,1221,1206 =1198<math> \pm</math> 21|| 1212, 1218,1240,1254,1242=1233<math> \pm</math> 18
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|-
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|  1.0  || 0.35 ||1117,1085,1083,1061,1085=1086<math> \pm</math> 20 || 1188,1154,1140,1111,1134=1145<math> \pm</math> 28||1225,1190,1178,1149,1172 =1183<math> \pm</math> 28||1243.1208,1195,1164,1184=1199<math> \pm</math> 30|| 1252,1219,1206,1178,1200=1211<math> \pm</math> 27
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|-
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|  1.5  || 0.22 ||
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|-
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|  2.0  || 0.10 ||1198,1210,1215,1223,1176=1204<math> \pm</math> 18 || 1216,1227,1235,1241,1196 =1223<math> \pm</math> 18|| 1237,1243,1252,1257,1214=1241<math> \pm</math> 17|| 1249,1252,1262,1266,1225 =1251<math> \pm</math> 16|| 1257,1262,1270,1276,1234=1260<math> \pm</math> 16
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|-
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|  4.0  || 0.002 ||
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|}
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{| border="1"
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| [[File:PositronRates-vs-SolenoidField_10-1-15.png |200px]] 
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|+ Positron Rates -vs- Solenoid Field for 2mm thick PbBi target and several Beam pipe diameters
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|}
  
 
[[G4Beamline_PbBi#PbBi_60cmLong_Solenoid_Collection_Efficiency_2015]]
 
[[G4Beamline_PbBi#PbBi_60cmLong_Solenoid_Collection_Efficiency_2015]]

Latest revision as of 16:46, 11 February 2016

Positron Collection rates with 60 cm long Solenoid

PositronEventWithSolenoid 09-16-15A.png PositronEventWith0.3Solenoid 09-16-15A.png
When the solenoid is 1.5 Tesla, a 10 MeV electron produces a 6.5 MeV photon that pair produces a 4.4 MeV positron and a 1 MeV electron Same Event but this time the solenoid is 0.3 Tesla and the positron hits the beam pipe, annihilates and makes two 511 keV photons
Sample Positron Production Events
PositronEventWithSolenoid 09-16-15B.png PositronEventWith0.3Solenoid 09-16-15B.png
When the solenoid is set to 1.5 Tesla, a 10 MeV electron produces three photons less than 1 MeV in the target, two of them compton scatter in the beam pipe The same event but this time the electron produces only 1 photon than ionizes in the target
Sample Brem event producing no positrons


With SS windows 

Positrons->Draw("sqrt(evt.BeamPosPosX*evt.BeamPosPosX+evt.BeamPosPosY*evt.BeamPosPosY)","evt.BeamPosMomZ>0 && evt.BeamPosPosZ>-500 && sqrt(evt.BeamPosPosX*evt.BeamPosPosX+evt.BeamPosPosY*evt.BeamPosPosY)<97.4/2");


B-field (Tesla) 34.8 mm diameter pipe 47.5 60.2 72.9 97.4
0.0 0.35 1,2,4,4,5 2,3,4,4,6 4,4,6,7,9 6,8,9,10,11 16,14,15,16,17
0.1 225,236,250,246,249=241[math] \pm[/math] 10 282,282,293,294,306=291[math] \pm[/math] 10 373,366,370,364,373=369[math] \pm[/math] 4 451,437,440,438,451=443[math] \pm[/math] 7 602,584,563,558,570=575[math] \pm[/math] 18
0.3 0.35 626,619,596,619,611 =614[math] \pm[/math] 11 720,726,706,730,717=720[math] \pm[/math] 9 871,864,840,841,834 =850[math] \pm[/math] 16 987,968,939,943,952 =958[math] \pm[/math] 20 1118,1106,1069,1067,1080=1088[math] \pm[/math] 23
0.6 929,935,949,969,961=949[math] \pm[/math] 17 1022,1031,1046,1059,1052 =1042[math] \pm[/math] 15 1120,1130,1152,1154,1146 =1140[math] \pm[/math] 15 1168,1184,1210,1221,1206 =1198[math] \pm[/math] 21 1212, 1218,1240,1254,1242=1233[math] \pm[/math] 18
1.0 0.35 1117,1085,1083,1061,1085=1086[math] \pm[/math] 20 1188,1154,1140,1111,1134=1145[math] \pm[/math] 28 1225,1190,1178,1149,1172 =1183[math] \pm[/math] 28 1243.1208,1195,1164,1184=1199[math] \pm[/math] 30 1252,1219,1206,1178,1200=1211[math] \pm[/math] 27
1.5 0.22
2.0 0.10 1198,1210,1215,1223,1176=1204[math] \pm[/math] 18 1216,1227,1235,1241,1196 =1223[math] \pm[/math] 18 1237,1243,1252,1257,1214=1241[math] \pm[/math] 17 1249,1252,1262,1266,1225 =1251[math] \pm[/math] 16 1257,1262,1270,1276,1234=1260[math] \pm[/math] 16
4.0 0.002


PositronRates-vs-SolenoidField 10-1-15.png
Positron Rates -vs- Solenoid Field for 2mm thick PbBi target and several Beam pipe diameters

G4Beamline_PbBi#PbBi_60cmLong_Solenoid_Collection_Efficiency_2015

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