Pulse-height distributions of neutron and gamma rays from plutonium-oxide samples

S. A. Pozzi; S. D. Clarke; M. Flaska; P. Peerani

doi:10.1016/j.nima.2009.07.007

Pulse-height distributions of neutron and gamma rays from plutonium-oxide samples

S. A. Pozzi
, S. D. Clarke
, M. Flaska
, P. Peerani

Ken and Mary Alice Lindquist Department of Nuclear Engineering

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

42 Scopus citations

Abstract

We present new results on neutron and gamma-ray pulse-height distributions (PHDs) measured with liquid scintillators from five plutonium-oxide samples of varying mass and burnup and a ²⁵²Cf isotopic source. We show that the analysis of the pulse-height distributions can be used to easily distinguish the fissile material (plutonium oxide) from the ²⁵²Cf source. Moreover, the slope of the measured pulse-height distributions can be analyzed to distinguish the burnup of the samples, independent of their masses. Finally, the measurement scenarios are modeled using the MCNP-PoliMi code and good agreement is observed between the measured and the simulated pulse-height distributions.

Original language	English (US)
Pages (from-to)	310-315
Number of pages	6
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	608
Issue number	2
DOIs	https://doi.org/10.1016/j.nima.2009.07.007
State	Published - Sep 11 2009

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Instrumentation

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10.1016/j.nima.2009.07.007

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title = "Pulse-height distributions of neutron and gamma rays from plutonium-oxide samples",

abstract = "We present new results on neutron and gamma-ray pulse-height distributions (PHDs) measured with liquid scintillators from five plutonium-oxide samples of varying mass and burnup and a 252Cf isotopic source. We show that the analysis of the pulse-height distributions can be used to easily distinguish the fissile material (plutonium oxide) from the 252Cf source. Moreover, the slope of the measured pulse-height distributions can be analyzed to distinguish the burnup of the samples, independent of their masses. Finally, the measurement scenarios are modeled using the MCNP-PoliMi code and good agreement is observed between the measured and the simulated pulse-height distributions.",

author = "Pozzi, \{S. A.\} and Clarke, \{S. D.\} and M. Flaska and P. Peerani",

year = "2009",

month = sep,

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doi = "10.1016/j.nima.2009.07.007",

language = "English (US)",

volume = "608",

pages = "310--315",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

publisher = "Elsevier B.V.",

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}

Pulse-height distributions of neutron and gamma rays from plutonium-oxide samples. / Pozzi, S. A.; Clarke, S. D.; Flaska, M. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 608, No. 2, 11.09.2009, p. 310-315.

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

TY - JOUR

T1 - Pulse-height distributions of neutron and gamma rays from plutonium-oxide samples

AU - Pozzi, S. A.

AU - Clarke, S. D.

AU - Flaska, M.

AU - Peerani, P.

PY - 2009/9/11

Y1 - 2009/9/11

N2 - We present new results on neutron and gamma-ray pulse-height distributions (PHDs) measured with liquid scintillators from five plutonium-oxide samples of varying mass and burnup and a 252Cf isotopic source. We show that the analysis of the pulse-height distributions can be used to easily distinguish the fissile material (plutonium oxide) from the 252Cf source. Moreover, the slope of the measured pulse-height distributions can be analyzed to distinguish the burnup of the samples, independent of their masses. Finally, the measurement scenarios are modeled using the MCNP-PoliMi code and good agreement is observed between the measured and the simulated pulse-height distributions.

AB - We present new results on neutron and gamma-ray pulse-height distributions (PHDs) measured with liquid scintillators from five plutonium-oxide samples of varying mass and burnup and a 252Cf isotopic source. We show that the analysis of the pulse-height distributions can be used to easily distinguish the fissile material (plutonium oxide) from the 252Cf source. Moreover, the slope of the measured pulse-height distributions can be analyzed to distinguish the burnup of the samples, independent of their masses. Finally, the measurement scenarios are modeled using the MCNP-PoliMi code and good agreement is observed between the measured and the simulated pulse-height distributions.

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DO - 10.1016/j.nima.2009.07.007

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VL - 608

SP - 310

EP - 315

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

IS - 2

ER -

Pulse-height distributions of neutron and gamma rays from plutonium-oxide samples

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