Germanium can be used to measure the energy of incident particles. Consider a 660-keV gamma ray emitted

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Germanium can be used to measure the energy of incident particles. Consider a 660-keV gamma ray emitted from 137Cs.

(a) Given that the band gap in germanium is 0.72 eV, how many electron–hole pairs can be generated as this gamma ray travels through germanium?

(b) The number of pairs N in part (a) will have statistical fluctuations given by ± √N. What then is the energy resolution of this detector in this photon energy region?

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Fundamentals of Ethics for Scientists and Engineers

ISBN: 978-0195134889

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Authors: Edmund G. Seebauer, Robert L. Barry

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Question Posted: Nov 28, 2011 11:11 AM

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Germanium can be used to measure the energy of incident particles. Consider a 660-keV gamma ray emitted

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Fundamentals of Ethics for Scientists and Engineers

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