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Ionization chamber efficiency curves

A K Pearce1, C Michotte2 and Y Hino3

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This paper describes the current status of ionization chamber efficiency curve modelling. Such curves, useful for ionization current prediction and for impurity corrections, cannot be obtained directly and are generally determined using empirical or Monte Carlo techniques. Each technique is described and practical examples are given. It is concluded that such models are a useful supplement to, rather than a replacement for, careful calibration and characterization measurements.


PACS

29.40.Cs Gas-filled counters: ionization chambers, proportional, and avalanche counters

Subjects

Accelerators, beams and electromagnetism

Nuclear physics

Instrumentation and measurement

Particle physics and field theory

Dates

Issue 4 (August 2007)

Received 13 March 2007

Published 2 August 2007



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