Difference between revisions of "Dose Calculation"

Latest revision as of 16:32, 5 November 2009

Dose (C/cm):

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

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

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

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

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

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

1 year of running (= 1/3 year beam on target) = $1.1\cdot 10^{{7}}s\times 267{\frac {e}{s\cdot cm}}\times 1.60\cdot 10^{{-19}}C/e\times 2\cdot 10^{{5}}=9.0\cdot 10^{{-5}}C/cm$

@@ Line 1: / Line 1: @@
 Dose (C/cm):
-<math>\frac{\#e}{1cm} \cdot 1.60 \cdot 10^{-19} C/e \cdot gas gain</math>
+<math>\frac{\#e}{1cm} \times 1.60 \cdot 10^{-19} C/e \times gas gain</math>
-* Lamina 300 A: <math>3.6\cdot10^{11}\times1.6\cdot10^{-19}\times2\cdot10^{5}</math>
+* Lamina 300 A:
+     <math>3.6\cdot10^{11}\times1.6\cdot10^{-19}\times2\cdot10^{5} = 0.01~C/cm</math>
+* Lamina 12 <math>\mu</math>m:
+     <math>1.2\cdot10^{11}\times1.6\cdot10^{-19}\times2\cdot10^{5} = 0.004~C/cm</math>
+* CMU mylar:
+     <math>1.4\cdot10^{11}\times1.6\cdot10^{-19}\times2\cdot10^{5} = 0.004~C/cm</math>
+* CMU kapton:
+     <math>2.9\cdot10^{11}\times1.6\cdot10^{-19}\times2\cdot10^{5} = 0.009~C/cm</math>
+EM background: <math>40~kHz/straw</math>or <math>267~Hz/cm</math>
+* 1 year of running (= 1/3 year beam on target) = <math>1.1\cdot 10^{7}s \times 267 \frac{e}{s\cdot cm} \times 1.60\cdot10^{-19}C/e \times 2\cdot 10^{5} = 9.0 \cdot 10^{-5} C/cm</math>
+* Irradiation dose = <math>\geq</math>44 years of running