Difference between revisions of "Linac Run Plan April 2018, Dr. McNulty"
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| − | ==Calculations== | + | ==Calculations (1)== |
Assuming <math>100\frac{mA}{pulse}</math> and a pulse width of <math>100ns</math> | Assuming <math>100\frac{mA}{pulse}</math> and a pulse width of <math>100ns</math> | ||
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<math>10*10^{-9}\frac{C}{pulse}*\frac{1\ e-}{1.602*10^{-19}}=6.2422*10^{10}\frac{e-}{pulse}</math> | <math>10*10^{-9}\frac{C}{pulse}*\frac{1\ e-}{1.602*10^{-19}}=6.2422*10^{10}\frac{e-}{pulse}</math> | ||
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| + | |||
| + | |||
| + | ==[[Absorbed Dose Information]]== | ||
| + | |||
| + | Using a distance of 25cm for all simulations following. | ||
| + | |||
| + | ===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 geometry: 0.501cm diameter cylinder of 0.03cm thickness with beam incident on flat face. | ||
| + | |||
| + | OSL Crystal density<math>=3.9698\frac{g}{cm^{3}}</math> | ||
| + | |||
| + | Mass of a single OSL crystal: <math>(\pi(0.2505)^{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^{9} MeV</math> | ||
| + | |||
| + | Converting to Joules for dose calculation: <math>4.46596*10^{9} MeV=7.15525*10^{-4}J</math> | ||
| + | |||
| + | Average dose per pulse <math>\frac{7.15525*10^{-4}J}{0.0234777*10^{-3}\ Kg}=30.4768\ Gy=3047.68\ 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^{11} MeV</math> | ||
| + | |||
| + | Converting to Joules for dose calculation: <math>4.71875*10^{11} MeV=0.0756027J</math> | ||
| + | |||
| + | Average dose per pulse <math>\frac{0.0756027\ J}{29.8593*10^{-3}\ Kg}=2.53196\ Gy=253.196\ rad</math> | ||
| + | |||
| + | ==Calculations (2)== | ||
| + | |||
| + | Cut current by a factor of 4. 100mA->25mA | ||
| + | |||
| + | Assuming <math>25\frac{mA}{pulse}</math> and a pulse width of <math>100ns</math> | ||
| + | |||
| + | Then <math>25\frac{mA}{pulse}=25\frac{mC}{s*pulse}=0.025\frac{C}{s*pulse}</math> | ||
| + | |||
| + | <math>0.025\frac{C}{s*pulse}(100ns)=2.5*10^{-9}\frac{C}{pulse}</math> | ||
| + | |||
| + | <math>2.5*10^{-9}\frac{C}{pulse}*\frac{1\ e-}{1.602*10^{-19}}=1.56055*10^{10}\frac{e-}{pulse}</math> | ||
Revision as of 16:44, 18 April 2018
Calculations (1)
Assuming and a pulse width of
Then
Absorbed Dose Information
Using a distance of 25cm for all simulations following.
OSL
of a pulse. ~62mil e- simulated, ~62bil e- per pulse. With beam parameters given above.
Deposited Energy:
OSL geometry: 0.501cm diameter cylinder of 0.03cm thickness with beam incident on flat face.
OSL Crystal density
Mass of a single OSL crystal:
Scaling deposited energy by 1000 to account for only shooting a 1000th of a pulse, the deposited energy becomes
Converting to Joules for dose calculation:
Average dose per pulse
Quartz
of a pulse. ~62mil e- simulated, ~62bil e- per pulse. With beam parameters given above.
Deposited Energy:
Quartz Geometry: 1 inch cylinder with electrons incident upon the base of the cylinder.
Quartz density
Mass of Quartz used in simulation:
Scaling deposited energy by 1000 to account for only shooting a 1000th of a pulse, the deposited energy becomes
Converting to Joules for dose calculation:
Average dose per pulse
Calculations (2)
Cut current by a factor of 4. 100mA->25mA
Assuming and a pulse width of
Then
Absorbed Dose Information
Using a distance of 25cm for all simulations following.
OSL
of a pulse. ~62mil e- simulated, ~62bil e- per pulse. With beam parameters given above.
Deposited Energy:
OSL geometry: 0.501cm diameter cylinder of 0.03cm thickness with beam incident on flat face.
OSL Crystal density
Mass of a single OSL crystal:
Scaling deposited energy by 1000 to account for only shooting a 1000th of a pulse, the deposited energy becomes
Converting to Joules for dose calculation:
Average dose per pulse
Quartz
of a pulse. ~62mil e- simulated, ~62bil e- per pulse. With beam parameters given above.
Deposited Energy:
Quartz Geometry: 1 inch cylinder with electrons incident upon the base of the cylinder.
Quartz density
Mass of Quartz used in simulation:
Scaling deposited energy by 1000 to account for only shooting a 1000th of a pulse, the deposited energy becomes
Converting to Joules for dose calculation:
Average dose per pulse