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Charge collection efficiency in ionization chambers operating in the recombination and saturation regimes

Abstract : We solve the electric charge transport equations in the recombination and saturation regimes using an iterative perturbation method. We then calculate the charge collection efficiencies of ionization chambers. The formulae obtained are presented in the form of series for which we calculate the first coefficients. Our approach allows to account for the spatial as well as the temporal variations of the primary charge density N(r,t) in the calculations. Finally, we apply our method to study different density patterns, N, including the textbook case N=N0δ(t) and the charge clusters and columns.
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http://hal.in2p3.fr/in2p3-00387272
Contributor : Emmanuelle Vernay <>
Submitted on : Monday, May 25, 2009 - 9:02:26 AM
Last modification on : Monday, July 20, 2020 - 9:18:27 AM

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S. Chabod. Charge collection efficiency in ionization chambers operating in the recombination and saturation regimes. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2009, 604, pp.632-639. ⟨10.1016/j.nima.2009.03.019⟩. ⟨in2p3-00387272⟩

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