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A comparison of untagged gamma-ray and tagged-neutron yields from 241AmBe and 238PuBe sources

Scherzinger, Julius LU ; Jebali, Ramsey Al; Annand, John; Fissum, Kevin LU ; Hall-Wilton, Richard LU ; Koufigar, Sharareh; Mauritzson, Nicholai; Messi, Francesco LU ; Perrey, Hanno LU and Rofors, Emil LU (2017) In Applied Radiation and Isotopes 127. p.98-102
Abstract
Untagged gamma-ray and tagged-neutron yields from 241AmBe and 238PuBe mixed-field sources have been measured. Gamma-ray spectroscopy measurements from 1 to 5 MeV were performed in an open environment using a CeBr3 detector and the same experimental conditions for both sources. The shapes of the distributions are very similar and agree well with previous data. Tagged-neutron measurements from 2 to 6 MeV were performed in a shielded environment using a NE-213 liquid-scintillator detector for the neutrons and a YAP(Ce) detector to tag the 4.44 MeV gamma-rays associated with the de-excitation of the first-excited state of 12C. Again, the same experimental conditions were used for both sources. The shapes of these distributions are also very... (More)
Untagged gamma-ray and tagged-neutron yields from 241AmBe and 238PuBe mixed-field sources have been measured. Gamma-ray spectroscopy measurements from 1 to 5 MeV were performed in an open environment using a CeBr3 detector and the same experimental conditions for both sources. The shapes of the distributions are very similar and agree well with previous data. Tagged-neutron measurements from 2 to 6 MeV were performed in a shielded environment using a NE-213 liquid-scintillator detector for the neutrons and a YAP(Ce) detector to tag the 4.44 MeV gamma-rays associated with the de-excitation of the first-excited state of 12C. Again, the same experimental conditions were used for both sources. The shapes of these distributions are also very similar and agree well with previous data, each other, and the ISO recommendation. Our 238PuBe source provides approximately 2.6 times more 4.44 MeV gamma-rays and 2.4 times more neutrons over the tagged-neutron energy range, the latter in reasonable agreement with the original full-spectrum source-calibration measurements performed at the time of their acquisition. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Radiation and Isotopes
volume
127
pages
5 pages
publisher
Elsevier
external identifiers
  • scopus:85019700359
  • wos:000407535600015
ISSN
0969-8043
DOI
10.1016/j.apradiso.2017.05.014
language
English
LU publication?
yes
id
2505d4a5-c6af-4c10-bd67-6b5bfed6665f
alternative location
https://arxiv.org/pdf/1611.00213.pdf
date added to LUP
2017-01-22 12:37:19
date last changed
2018-05-29 12:05:04
@article{2505d4a5-c6af-4c10-bd67-6b5bfed6665f,
  abstract     = {Untagged gamma-ray and tagged-neutron yields from 241AmBe and 238PuBe mixed-field sources have been measured. Gamma-ray spectroscopy measurements from 1 to 5 MeV were performed in an open environment using a CeBr3 detector and the same experimental conditions for both sources. The shapes of the distributions are very similar and agree well with previous data. Tagged-neutron measurements from 2 to 6 MeV were performed in a shielded environment using a NE-213 liquid-scintillator detector for the neutrons and a YAP(Ce) detector to tag the 4.44 MeV gamma-rays associated with the de-excitation of the first-excited state of 12C. Again, the same experimental conditions were used for both sources. The shapes of these distributions are also very similar and agree well with previous data, each other, and the ISO recommendation. Our 238PuBe source provides approximately 2.6 times more 4.44 MeV gamma-rays and 2.4 times more neutrons over the tagged-neutron energy range, the latter in reasonable agreement with the original full-spectrum source-calibration measurements performed at the time of their acquisition.},
  author       = {Scherzinger, Julius and Jebali, Ramsey Al and Annand, John and Fissum, Kevin and Hall-Wilton, Richard and Koufigar, Sharareh and Mauritzson, Nicholai and Messi, Francesco and Perrey, Hanno and Rofors, Emil},
  issn         = {0969-8043},
  language     = {eng},
  pages        = {98--102},
  publisher    = {Elsevier},
  series       = {Applied Radiation and Isotopes},
  title        = {A comparison of untagged gamma-ray and tagged-neutron yields from 241AmBe and 238PuBe sources},
  url          = {http://dx.doi.org/10.1016/j.apradiso.2017.05.014},
  volume       = {127},
  year         = {2017},
}