Dose Calculation

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Revision as of 20:30, 5 November 2009

Dose (C/cm):

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

$3.6\cdot10^{11}\times1.6\cdot10^{-19}\times2\cdot10^{5} = 0.01~C/cm$

$1.2\cdot10^{11}\times1.6\cdot10^{-19}\times2\cdot10^{5} = 0.004~C/cm$

$1.4\cdot10^{11}\times1.6\cdot10^{-19}\times2\cdot10^{5} = 0.004~C/cm$

$2.9\cdot10^{11}\times1.6\cdot10^{-19}\times2\cdot10^{5} = 0.009~C/cm$

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

1 year of running (= 1/3 year beam on target) = $1.1\cdot 10^{7}s \times 267 \frac{e}{s\cdot cm} \times 1.60\cdot10^{-19}C/e \times 2\cdot 10^{5} = 9.0 \cdot 10^{-5} C/cm$

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-	<math>\frac{\#e}{1cm} \ctimes 1.60 \cdot 10^{-19} C/e \ctimes gas gain</math>	+	<math>\frac{\#e}{1cm} \times 1.60 \cdot 10^{-19} C/e \times gas gain</math>