I need help with problem 4.12 (see picture). This problem involves gamma ray detectors. Problem 4.10: Calculate the amplitude of the voltage pulse produced by collecting a charge equal to that carried by 10^6 electrons on a capacitance of 100pF. (e=1.602x10^-19 C). Thank you. 4,12 The detector of Problem 4.10 has an intrinsic peak effi-ciency at 1 MeV of 12%. The point source emits a 1 MeVgamma ray in 80% of its decays and has an activity of20 kBq. Neglecting attenuation between the source anddetector, calculate the number of counts that will appearunder the 1 MeV full-energy peak in the pulse height spec-trum from the detector over a 100 s count.

Given data: The charge is Q=106e=1.602×10-19×106 C=1.602×10-13 C The capacitance is C=100×10-12 F

Answered: Calculate the amplitude of the voltage…

Calculate the amplitude of the voltage pulse produced by collecting a charge equal to that carried by 10^6 electrons on a capacitance of 100pF. (e=1.602x10^-19 C).

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter5: Matter Waves

Section: Chapter Questions

Problem 25P

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Question

I need help with problem 4.12 (see picture). This problem involves gamma ray detectors. Problem 4.10: Calculate the amplitude of the voltage pulse produced by collecting a charge equal to that carried by 10^6 electrons on a capacitance of 100pF. (e=1.602x10^-19 C). Thank you.

4,12 The detector of Problem 4.10 has an intrinsic peak effi-
ciency at 1 MeV of 12%. The point source emits a 1 MeV
gamma ray in 80% of its decays and has an activity of
20 kBq. Neglecting attenuation between the source and
detector, calculate the number of counts that will appear
under the 1 MeV full-energy peak in the pulse height spec-
trum from the detector over a 100 s count.

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