A new alternative singles rate dead time correction algorithm for use in neutron multiplicity analysis

S. Croft; L. G. Evans; A. Favalli; D. Hauck; D. Henzlova; P. Santi; M. T. Swinhoe

doi:10.1016/j.nima.2012.04.028

A new alternative singles rate dead time correction algorithm for use in neutron multiplicity analysis

S. Croft
, L. G. Evans
, A. Favalli
, D. Hauck
, D. Henzlova
, P. Santi
, M. T. Swinhoe

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

In this article we extend the neutron multiplicity counting dead time correction scheme devised by Dytlewski to include Singles. In this way a self consistent, item specific, Singles dead time correction is obtained under the same physical assumptions and approximations as are used for the Doubles and Triples corrections. This correction for the Singles count rate also affects the Doubles and Triples dead time correction because it is also the correction needed for the number of coincidence gates opened. We develop the new dead time formula, which we call the Croft-Dytlewski formula, as an action on the Accidentals histogram, and apply it to simulated pulse train data for which the correct results are known. The new formula was found to perform better than the standard ad-hoc Dytlewski Singles dead time correction formula, particularly for highly correlated high count rate items.

Original language	English
Pages (from-to)	16-20
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	681
DOIs	https://doi.org/10.1016/j.nima.2012.04.028
State	Published - Jul 21 2012
Externally published	Yes

Funding

This work was sponsored by the U.S. Department of Energy (DOE) , National Nuclear Security Administration (NNSA) , Office of Nonproliferation Research and Development ( NA-22 ).

Keywords

Dead time correction
Fissile material assay
Multiplicity
Neutron coincidence counting

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10.1016/j.nima.2012.04.028

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Croft, S., Evans, L. G., Favalli, A., Hauck, D., Henzlova, D., Santi, P., & Swinhoe, M. T. (2012). A new alternative singles rate dead time correction algorithm for use in neutron multiplicity analysis. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 681, 16-20. https://doi.org/10.1016/j.nima.2012.04.028

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title = "A new alternative singles rate dead time correction algorithm for use in neutron multiplicity analysis",

abstract = "In this article we extend the neutron multiplicity counting dead time correction scheme devised by Dytlewski to include Singles. In this way a self consistent, item specific, Singles dead time correction is obtained under the same physical assumptions and approximations as are used for the Doubles and Triples corrections. This correction for the Singles count rate also affects the Doubles and Triples dead time correction because it is also the correction needed for the number of coincidence gates opened. We develop the new dead time formula, which we call the Croft-Dytlewski formula, as an action on the Accidentals histogram, and apply it to simulated pulse train data for which the correct results are known. The new formula was found to perform better than the standard ad-hoc Dytlewski Singles dead time correction formula, particularly for highly correlated high count rate items.",

keywords = "Dead time correction, Fissile material assay, Multiplicity, Neutron coincidence counting",

author = "S. Croft and Evans, \{L. G.\} and A. Favalli and D. Hauck and D. Henzlova and P. Santi and Swinhoe, \{M. T.\}",

year = "2012",

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doi = "10.1016/j.nima.2012.04.028",

language = "English",

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Croft, S, Evans, LG, Favalli, A, Hauck, D, Henzlova, D, Santi, P & Swinhoe, MT 2012, 'A new alternative singles rate dead time correction algorithm for use in neutron multiplicity analysis', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 681, pp. 16-20. https://doi.org/10.1016/j.nima.2012.04.028

A new alternative singles rate dead time correction algorithm for use in neutron multiplicity analysis. / Croft, S.; Evans, L. G.; Favalli, A. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 681, 21.07.2012, p. 16-20.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - A new alternative singles rate dead time correction algorithm for use in neutron multiplicity analysis

AU - Croft, S.

AU - Evans, L. G.

AU - Favalli, A.

AU - Hauck, D.

AU - Henzlova, D.

AU - Santi, P.

AU - Swinhoe, M. T.

PY - 2012/7/21

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AB - In this article we extend the neutron multiplicity counting dead time correction scheme devised by Dytlewski to include Singles. In this way a self consistent, item specific, Singles dead time correction is obtained under the same physical assumptions and approximations as are used for the Doubles and Triples corrections. This correction for the Singles count rate also affects the Doubles and Triples dead time correction because it is also the correction needed for the number of coincidence gates opened. We develop the new dead time formula, which we call the Croft-Dytlewski formula, as an action on the Accidentals histogram, and apply it to simulated pulse train data for which the correct results are known. The new formula was found to perform better than the standard ad-hoc Dytlewski Singles dead time correction formula, particularly for highly correlated high count rate items.

KW - Dead time correction

KW - Fissile material assay

KW - Multiplicity

KW - Neutron coincidence counting

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JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

ER -

A new alternative singles rate dead time correction algorithm for use in neutron multiplicity analysis

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