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Title: Photoneutron-induced, prompt neutron capture gamma-ray spectroscopy

Abstract

Many practical radioisotopic-based and accelerator-based nondestructive evaluation (NDE) methods using neutron-induced prompt gamma rays have been successfully developed for various applications during the last several decades. In addition, electron accelerator-based X-ray radiography has been well established for more than 100 yr. Combining the advantages of these two NDE technologies has been limited by the fact that most gamma-ray detectors are rendered ineffective by the intense bremsstrahlung photons (i.e., X-ray flash) associated with each electron accelerator pulse. In support of a U.S. Department of Energy project, the Idaho National Engineering and Environmental Laboratory (INEEL) is developing a prototype high-purity germanium (HPGe)-based NDE system that performs prompt gamma-ray spectroscopy for gamma rays acquired between accelerator-produced bremsstrahlung pulses. Using a 6.5-MeV electron accelerator and a beryllium metal photoneutron source, the acquired gamma-ray spectrum for an interrogated 2.7-kg block of NaCl is presented and compared to one obtained using a {sup 252}Cf neutron source. In addition, the predicted photoneutron source spectrum is compared to a typical {sup 252}Cf neutron source spectrum.

Authors:
;  [1]
  1. Idaho National Engineering and Environmental Lab., Idaho Falls, ID (United States)
Publication Date:
OSTI Identifier:
552676
Report Number(s):
CONF-971125-
Journal ID: TANSAO; ISSN 0003-018X; TRN: 98:001882
Resource Type:
Journal Article
Journal Name:
Transactions of the American Nuclear Society
Additional Journal Information:
Journal Volume: 77; Conference: 1997 American Nuclear Society (ANS) winter meeting, Albuquerque, NM (United States), 16-20 Nov 1997; Other Information: PBD: 1997
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPE AND RADIATION SOURCE TECHNOLOGY; GAMMA SPECTRA; COMPARATIVE EVALUATIONS; NEUTRON SOURCES; BREMSSTRAHLUNG; PULSES; GAMMA SPECTROSCOPY; CALIFORNIUM 252; PHOTONEUTRONS

Citation Formats

Jones, J L, and Yoon, W Y. Photoneutron-induced, prompt neutron capture gamma-ray spectroscopy. United States: N. p., 1997. Web.
Jones, J L, & Yoon, W Y. Photoneutron-induced, prompt neutron capture gamma-ray spectroscopy. United States.
Jones, J L, and Yoon, W Y. Mon . "Photoneutron-induced, prompt neutron capture gamma-ray spectroscopy". United States.
@article{osti_552676,
title = {Photoneutron-induced, prompt neutron capture gamma-ray spectroscopy},
author = {Jones, J L and Yoon, W Y},
abstractNote = {Many practical radioisotopic-based and accelerator-based nondestructive evaluation (NDE) methods using neutron-induced prompt gamma rays have been successfully developed for various applications during the last several decades. In addition, electron accelerator-based X-ray radiography has been well established for more than 100 yr. Combining the advantages of these two NDE technologies has been limited by the fact that most gamma-ray detectors are rendered ineffective by the intense bremsstrahlung photons (i.e., X-ray flash) associated with each electron accelerator pulse. In support of a U.S. Department of Energy project, the Idaho National Engineering and Environmental Laboratory (INEEL) is developing a prototype high-purity germanium (HPGe)-based NDE system that performs prompt gamma-ray spectroscopy for gamma rays acquired between accelerator-produced bremsstrahlung pulses. Using a 6.5-MeV electron accelerator and a beryllium metal photoneutron source, the acquired gamma-ray spectrum for an interrogated 2.7-kg block of NaCl is presented and compared to one obtained using a {sup 252}Cf neutron source. In addition, the predicted photoneutron source spectrum is compared to a typical {sup 252}Cf neutron source spectrum.},
doi = {},
url = {https://www.osti.gov/biblio/552676}, journal = {Transactions of the American Nuclear Society},
number = ,
volume = 77,
place = {United States},
year = {1997},
month = {12}
}