Neutron and gamma-ray cross-correlation measurements of plutonium oxide powder

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

doi:10.1016/j.nima.2009.02.045

Neutron and gamma-ray cross-correlation measurements of plutonium oxide powder

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

Ken and Mary Alice Lindquist Department of Nuclear Engineering

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

36 Scopus citations

Abstract

For the first time, measurements of the time-dependent cross-correlation distributions of plutonium oxide have been made separately for neutrons and gamma rays. Six EJ-309 liquid scintillation detectors with a digital, offline pulse shape discrimination and pulse timing method were used to measure five different samples of varying mass and burnup. The number of (neutron, neutron) correlations were selectively analyzed versus plutonium mass and a clear, increasing trend was observed. Additionally, the measurement scenarios were modeled using the MCNP-PoliMi code and good agreement was observed between the measured and simulated cross-correlation functions.

Original language	English (US)
Pages (from-to)	618-623
Number of pages	6
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	604
Issue number	3
DOIs	https://doi.org/10.1016/j.nima.2009.02.045
State	Published - Jun 11 2009

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Instrumentation

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10.1016/j.nima.2009.02.045

Cite this

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title = "Neutron and gamma-ray cross-correlation measurements of plutonium oxide powder",

abstract = "For the first time, measurements of the time-dependent cross-correlation distributions of plutonium oxide have been made separately for neutrons and gamma rays. Six EJ-309 liquid scintillation detectors with a digital, offline pulse shape discrimination and pulse timing method were used to measure five different samples of varying mass and burnup. The number of (neutron, neutron) correlations were selectively analyzed versus plutonium mass and a clear, increasing trend was observed. Additionally, the measurement scenarios were modeled using the MCNP-PoliMi code and good agreement was observed between the measured and simulated cross-correlation functions.",

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

year = "2009",

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doi = "10.1016/j.nima.2009.02.045",

language = "English (US)",

volume = "604",

pages = "618--623",

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

issn = "0168-9002",

publisher = "Elsevier B.V.",

number = "3",

}

Neutron and gamma-ray cross-correlation measurements of plutonium oxide powder. / Clarke, S. D.; Flaska, M.; Pozzi, S. A. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 604, No. 3, 11.06.2009, p. 618-623.

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

TY - JOUR

T1 - Neutron and gamma-ray cross-correlation measurements of plutonium oxide powder

AU - Clarke, S. D.

AU - Flaska, M.

AU - Pozzi, S. A.

AU - Peerani, P.

PY - 2009/6/11

Y1 - 2009/6/11

N2 - For the first time, measurements of the time-dependent cross-correlation distributions of plutonium oxide have been made separately for neutrons and gamma rays. Six EJ-309 liquid scintillation detectors with a digital, offline pulse shape discrimination and pulse timing method were used to measure five different samples of varying mass and burnup. The number of (neutron, neutron) correlations were selectively analyzed versus plutonium mass and a clear, increasing trend was observed. Additionally, the measurement scenarios were modeled using the MCNP-PoliMi code and good agreement was observed between the measured and simulated cross-correlation functions.

AB - For the first time, measurements of the time-dependent cross-correlation distributions of plutonium oxide have been made separately for neutrons and gamma rays. Six EJ-309 liquid scintillation detectors with a digital, offline pulse shape discrimination and pulse timing method were used to measure five different samples of varying mass and burnup. The number of (neutron, neutron) correlations were selectively analyzed versus plutonium mass and a clear, increasing trend was observed. Additionally, the measurement scenarios were modeled using the MCNP-PoliMi code and good agreement was observed between the measured and simulated cross-correlation functions.

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DO - 10.1016/j.nima.2009.02.045

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VL - 604

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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

IS - 3

ER -

Neutron and gamma-ray cross-correlation measurements of plutonium oxide powder

Abstract

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