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| − | =Date=
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| − | 85 useable OSLs
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| − | Machine: 24b Linac
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| − | Beam Energy: 8 MeV
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| − | Rep Rate: Max (180Hz)?
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| − | :{| border="2" style="text-align:center;" |cellpadding="20" cellspacing="0
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| − | |-
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| − | | Shot # ||Start Time || End Time || Number of OSLs || Distance to end of beampipe || Beam Current || Aluminum Brick || Background Subtracted PMT Counts
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| − | |-
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| − | | 1 ||7am || 7:15am || 1 || 25cm || amps || Out ||
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| − | |-
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| − | | 2 ||7:20am || 7:35am || 1 || 25cm || amps || Out ||
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| − | |-
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| − | | 3 || 7:40am || 7:55am || 1 || 25cm || amps || Out ||
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| − | |-
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| − | | 4 || 8:00 || 8:20 || 1 || 25cm || amps || Out ||
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| − | |-
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| − | | 5 || || || 1 || 25cm || amps || Out ||
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| − | |-
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| − | | 6 || || || 1 || 25cm || amps || In ||
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| − | |-
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| − | | 7 || || || 1 || 25cm || amps || In ||
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| − | |-
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| − | | 8 || || || 1 || 25cm || amps || In ||
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| − | |-
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| − | | 9 || || || 1 || 25cm || amps || In ||
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| − | |-
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| − | | 10 || || || 1 || 25cm || amps || In ||
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| − | |-
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| − | | 11 || || || 10 || 25cm || amps || Out ||
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| − | |-
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| − | | 12 || || || 10 || 25cm || amps || Out ||
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| − | |-
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| − | | 13 || || || 10 || 25cm || amps || Out ||
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| − | |-
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| − | | 14 || || || 10 || 25cm || amps || Out ||
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| − | |-
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| − | | 15 || || || 10 || 25cm || amps || Out ||
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| − | |-
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| − | | 16 || || || 10 || 25cm || amps || In ||
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| − | |-
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| − | | 17 || || || 15 || 25cm || amps || In ||
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| − | |-
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| − | |}
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| − |
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| | ==Calculations== | | ==Calculations== |
| | | | |
Revision as of 19:21, 16 April 2018
Calculations
Assuming [math]100\frac{mA}{pulse}[/math] and a pulse width of [math]100ns[/math]
Then [math]100\frac{mA}{pulse}=100\frac{mC}{s*pulse}=0.1\frac{C}{s*pulse}[/math]
[math]0.1\frac{C}{s*pulse}(100ns)=10*10^{-9}\frac{C}{pulse}[/math]
[math]10*10^{-9}\frac{C}{pulse}*\frac{1\ e-}{1.602*10^{-19}}=6.2422*10^{10}\frac{e-}{pulse}[/math]
OSL
[math]\frac{1}{1000}[/math] of a pulse. ~62mil e- simulated, ~62bil e- per pulse. With beam parameters given above.
Deposited Energy: [math]4.46596*10^{6} MeV[/math]
OSL Crystal density[math]=3.9698\frac{g}{cm^{3}}[/math]
Mass of a single OSL crystal: [math](\pi(0.501)^{2}*(0.03))*(3.9698)=0.0234777g[/math]
Scaling deposited energy by 1000 to account for only shooting a 1000th of a pulse, the deposited energy becomes [math]4.46596*10^{10} MeV[/math]
Converting to Joules for dose calculation: [math]4.46596*10^{10} MeV=7.15525*10^{-5}J[/math]
Average dose per pulse [math]\frac{7.15525*10^{-5}J}{0.0234777*10^{-3}\ Kg}=3.04768\ Gy=304.768\ rad[/math]
Quartz
[math]\frac{1}{1000}[/math] of a pulse. ~62mil e- simulated, ~62bil e- per pulse. With beam parameters given above.
Deposited Energy: [math]4.71875*10^{8} MeV[/math]
Quartz Geometry: 1 inch cylinder with electrons incident upon the base of the cylinder.
Quartz density[math]=2.32\frac{g}{cm^{3}}[/math]
Mass of Quartz used in simulation: [math](\pi(1.27)^{2}*(2.54))*(2.32)=29.8593g[/math]
Scaling deposited energy by 1000 to account for only shooting a 1000th of a pulse, the deposited energy becomes [math]4.71875*10^{12} MeV[/math]
Converting to Joules for dose calculation: [math]4.71875*10^{12} MeV=0.756027J[/math]
Average dose per pulse [math]\frac{0.756027\ J}{29.8593*10^{-3}\ Kg}=25.3196\ Gy=2531.96\ rad[/math]
Thesis