Difference between revisions of "Dose Calculation"

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* CMU kapton:  
 
* CMU kapton:  
 
<math>2.9\cdot10^{11}\times1.6\cdot10^{-19}\times2\cdot10^{5} = 0.009~C/cm</math>
 
<math>2.9\cdot10^{11}\times1.6\cdot10^{-19}\times2\cdot10^{5} = 0.009~C/cm</math>
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EM background: 40<math>~kHz</math>/straw or 267<math>~Hz</math>/cm
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* 1 year of running (= 1/3 year beam on target) = <math>1.1\cdot 10^{7}s \times 267 e/s\cdot cm \times 2\cdot 10^{5} = 9.0 \cdot 10^{-5} C/cm</math>

Revision as of 16:18, 5 November 2009

Dose (C/cm):

{\frac {\#e}{1cm}}\cdot 1.60\cdot 10^{{-19}}C/e\cdot gasgain


  • Lamina 300 A:

3.6\cdot 10^{{11}}\times 1.6\cdot 10^{{-19}}\times 2\cdot 10^{{5}}=0.01~C/cm

  • Lamina 12 \mu m:

1.2\cdot 10^{{11}}\times 1.6\cdot 10^{{-19}}\times 2\cdot 10^{{5}}=0.004~C/cm

  • CMU mylar:

1.4\cdot 10^{{11}}\times 1.6\cdot 10^{{-19}}\times 2\cdot 10^{{5}}=0.004~C/cm

  • CMU kapton:

2.9\cdot 10^{{11}}\times 1.6\cdot 10^{{-19}}\times 2\cdot 10^{{5}}=0.009~C/cm


EM background: 40~kHz/straw or 267~Hz/cm

  • 1 year of running (= 1/3 year beam on target) = 1.1\cdot 10^{{7}}s\times 267e/s\cdot cm\times 2\cdot 10^{{5}}=9.0\cdot 10^{{-5}}C/cm
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