Nuclear data for multiple prompt gamma-ray analysis

Y. Toh, M. Oshima, M. Koizumi, A. Osa, A. Kimura, J. Goto, Mitsuru Ebihara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Most of nuclei emit two or more prompt gamma rays in the neutron capture reaction. In multiple prompt gamma-ray analysis (MPGA), the gamma rays are simultaneously measured by two or more sets of gamma-ray detectors; these gamma rays are reduced to a pair of two prompt gamma rays, and it is added to the two-dimensional spectrum, which sets two energy axes. A gamma-ray peak corresponding to the pair of gamma rays that are emitted simultaneously will appear on the two-dimensional spectrum. By analyzing this two-dimensional peak, resolution can be raised by leaps and bounds. MPGA needs not only the knowledge of energies of capture gamma rays, but also nuclear level structure data. While the energies are usually accurate, many of the excited level structures are poorly known. Complete sets of these nuclear data are of great importance. A new MPGA system will be constructed at the guide-hall of JRR-3M in Japan Atomic Energy Research Institute. This system consists of three clover Ge detectors with anti-Compton suppressors. The absolute efficiency of the system is about 10% for a 1.3-MeV gamma ray. It will be widely used in the fields of agriculture, engineering, geosciences, environmental science, and measurement of neutron capture cross sections of minor actinides.

Original languageEnglish
Title of host publicationInternational Conference on Nuclear Data for Science and Technology
Pages1666-1669
Number of pages4
Volume769
DOIs
Publication statusPublished - 2005 May 24
Externally publishedYes
EventInternational Conference on Nuclear Data for Science and Technology - Santa Fe, NM
Duration: 2004 Sep 262004 Oct 1

Other

OtherInternational Conference on Nuclear Data for Science and Technology
CitySanta Fe, NM
Period04/9/2604/10/1

Fingerprint

gamma rays
suppressors
neutrons
agriculture
data structures
detectors
systems analysis
nuclear energy
absorption cross sections
energy
Japan
engineering
nuclei

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Toh, Y., Oshima, M., Koizumi, M., Osa, A., Kimura, A., Goto, J., & Ebihara, M. (2005). Nuclear data for multiple prompt gamma-ray analysis. In International Conference on Nuclear Data for Science and Technology (Vol. 769, pp. 1666-1669) https://doi.org/10.1063/1.1945328

Nuclear data for multiple prompt gamma-ray analysis. / Toh, Y.; Oshima, M.; Koizumi, M.; Osa, A.; Kimura, A.; Goto, J.; Ebihara, Mitsuru.

International Conference on Nuclear Data for Science and Technology. Vol. 769 2005. p. 1666-1669.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Toh, Y, Oshima, M, Koizumi, M, Osa, A, Kimura, A, Goto, J & Ebihara, M 2005, Nuclear data for multiple prompt gamma-ray analysis. in International Conference on Nuclear Data for Science and Technology. vol. 769, pp. 1666-1669, International Conference on Nuclear Data for Science and Technology, Santa Fe, NM, 04/9/26. https://doi.org/10.1063/1.1945328
Toh Y, Oshima M, Koizumi M, Osa A, Kimura A, Goto J et al. Nuclear data for multiple prompt gamma-ray analysis. In International Conference on Nuclear Data for Science and Technology. Vol. 769. 2005. p. 1666-1669 https://doi.org/10.1063/1.1945328
Toh, Y. ; Oshima, M. ; Koizumi, M. ; Osa, A. ; Kimura, A. ; Goto, J. ; Ebihara, Mitsuru. / Nuclear data for multiple prompt gamma-ray analysis. International Conference on Nuclear Data for Science and Technology. Vol. 769 2005. pp. 1666-1669
@inproceedings{c8a1eb4d03f14a88aab3da47380681a0,
title = "Nuclear data for multiple prompt gamma-ray analysis",
abstract = "Most of nuclei emit two or more prompt gamma rays in the neutron capture reaction. In multiple prompt gamma-ray analysis (MPGA), the gamma rays are simultaneously measured by two or more sets of gamma-ray detectors; these gamma rays are reduced to a pair of two prompt gamma rays, and it is added to the two-dimensional spectrum, which sets two energy axes. A gamma-ray peak corresponding to the pair of gamma rays that are emitted simultaneously will appear on the two-dimensional spectrum. By analyzing this two-dimensional peak, resolution can be raised by leaps and bounds. MPGA needs not only the knowledge of energies of capture gamma rays, but also nuclear level structure data. While the energies are usually accurate, many of the excited level structures are poorly known. Complete sets of these nuclear data are of great importance. A new MPGA system will be constructed at the guide-hall of JRR-3M in Japan Atomic Energy Research Institute. This system consists of three clover Ge detectors with anti-Compton suppressors. The absolute efficiency of the system is about 10{\%} for a 1.3-MeV gamma ray. It will be widely used in the fields of agriculture, engineering, geosciences, environmental science, and measurement of neutron capture cross sections of minor actinides.",
author = "Y. Toh and M. Oshima and M. Koizumi and A. Osa and A. Kimura and J. Goto and Mitsuru Ebihara",
year = "2005",
month = "5",
day = "24",
doi = "10.1063/1.1945328",
language = "English",
isbn = "073540254X",
volume = "769",
pages = "1666--1669",
booktitle = "International Conference on Nuclear Data for Science and Technology",

}

TY - GEN

T1 - Nuclear data for multiple prompt gamma-ray analysis

AU - Toh, Y.

AU - Oshima, M.

AU - Koizumi, M.

AU - Osa, A.

AU - Kimura, A.

AU - Goto, J.

AU - Ebihara, Mitsuru

PY - 2005/5/24

Y1 - 2005/5/24

N2 - Most of nuclei emit two or more prompt gamma rays in the neutron capture reaction. In multiple prompt gamma-ray analysis (MPGA), the gamma rays are simultaneously measured by two or more sets of gamma-ray detectors; these gamma rays are reduced to a pair of two prompt gamma rays, and it is added to the two-dimensional spectrum, which sets two energy axes. A gamma-ray peak corresponding to the pair of gamma rays that are emitted simultaneously will appear on the two-dimensional spectrum. By analyzing this two-dimensional peak, resolution can be raised by leaps and bounds. MPGA needs not only the knowledge of energies of capture gamma rays, but also nuclear level structure data. While the energies are usually accurate, many of the excited level structures are poorly known. Complete sets of these nuclear data are of great importance. A new MPGA system will be constructed at the guide-hall of JRR-3M in Japan Atomic Energy Research Institute. This system consists of three clover Ge detectors with anti-Compton suppressors. The absolute efficiency of the system is about 10% for a 1.3-MeV gamma ray. It will be widely used in the fields of agriculture, engineering, geosciences, environmental science, and measurement of neutron capture cross sections of minor actinides.

AB - Most of nuclei emit two or more prompt gamma rays in the neutron capture reaction. In multiple prompt gamma-ray analysis (MPGA), the gamma rays are simultaneously measured by two or more sets of gamma-ray detectors; these gamma rays are reduced to a pair of two prompt gamma rays, and it is added to the two-dimensional spectrum, which sets two energy axes. A gamma-ray peak corresponding to the pair of gamma rays that are emitted simultaneously will appear on the two-dimensional spectrum. By analyzing this two-dimensional peak, resolution can be raised by leaps and bounds. MPGA needs not only the knowledge of energies of capture gamma rays, but also nuclear level structure data. While the energies are usually accurate, many of the excited level structures are poorly known. Complete sets of these nuclear data are of great importance. A new MPGA system will be constructed at the guide-hall of JRR-3M in Japan Atomic Energy Research Institute. This system consists of three clover Ge detectors with anti-Compton suppressors. The absolute efficiency of the system is about 10% for a 1.3-MeV gamma ray. It will be widely used in the fields of agriculture, engineering, geosciences, environmental science, and measurement of neutron capture cross sections of minor actinides.

UR - http://www.scopus.com/inward/record.url?scp=33749457961&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33749457961&partnerID=8YFLogxK

U2 - 10.1063/1.1945328

DO - 10.1063/1.1945328

M3 - Conference contribution

AN - SCOPUS:33749457961

SN - 073540254X

SN - 9780735402546

VL - 769

SP - 1666

EP - 1669

BT - International Conference on Nuclear Data for Science and Technology

ER -