Dead time corrections for inbeam γ -spectroscopy measurements

Boromiza, M.; Borcea, C.; Negreţ, A.; Olacel, Adina; Suliman, G.

doi:10.1016/j.nima.2017.05.013

Cited by 6 publications

(1 citation statement)

References 12 publications

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“…Abbene & Gerardi evaluated the dead-time in the fast and slow channel according to the classical dead-time models, paralyzable model and non-paralyzable model (Abbene & Gerardi, 2015;Knoll, 2000). For the low-counting-rate condition, Boromiza et al (2017) made use of the Poisson distribution principle followed by the true counting rate and used the detected counting rate instead of the true counting rate to calculate the correction factor.…”

Section: Introductionmentioning

confidence: 99%

Counting-loss correction for X-ray spectroscopy using unit impulse pulse shaping

Zhou

et al. 2018

J Synchrotron Radiat

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High-precision measurement of X-ray spectra is affected by the statistical fluctuation of the X-ray beam under low-counting-rate conditions. It is also limited by counting loss resulting from the dead-time of the system and pile-up pulse effects, especially in a high-counting-rate environment. In this paper a detection system based on a FAST-SDD detector and a new kind of unit impulse pulse-shaping method is presented, for counting-loss correction in X-ray spectroscopy. The unit impulse pulse-shaping method is evolved by inverse deviation of the pulse from a reset-type preamplifier and a C-R shaper. It is applied to obtain the true incoming rate of the system based on a general fast-slow channel processing model. The pulses in the fast channel are shaped to unit impulse pulse shape which possesses small width and no undershoot. The counting rate in the fast channel is corrected by evaluating the dead-time of the fast channel before it is used to correct the counting loss in the slow channel.

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Section: Introductionmentioning

confidence: 99%