Pulsed and monoenergetic beams for neutron cross-section measurements using activation and scattering techniques at Triangle Universities Nuclear Laboratory

A. Hutcheson, C. T. Angell, J. A. Becker, M. Boswell, A. S. Crowell, D. Dashdorj, B. Fallin, N. Fotiades, C. R. Howell, H. J. Karwowski, J. H. Kelley, M. Kiser, R. A. Macri, R. O. Nelson, R. S. Pedroni, A. P. Tonchev, W. Tornow, D. J. Vieira, Gary Weisel, J. B. Wilhelmy

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In support of the Stewardship Science Academic Alliances initiative, an experimental program has been developed at Triangle Universities Nuclear Laboratory (TUNL) to measure (n,xn) cross-sections with both in-beam and activation techniques with the goal of improving the partial cross-section database for the NNSA Stockpile Stewardship Program. First experimental efforts include excitation function measurements on 235,238U and 241Am using pulsed and monoenergetic neutron beams with En = 5-15 MeV. Neutron-induced partial cross-sections were measured by detecting prompt γ rays from the residual nuclei using various combinations of clover and planar HPGe detectors in the TUNL shielded neutron source area. Complimentary activation measurements using DC neutron beams have also been performed in open geometry in our second target area. The neutron-induced activities were measured in the TUNL low-background counting area. In this presentation, we include detailed information about the irradiation procedures and facilities and preliminary data on first measurements using this capability.

Original languageEnglish (US)
Pages (from-to)369-372
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume261
Issue number1-2 SPEC. ISS.
DOIs
StatePublished - Aug 1 2007

Fingerprint

neutron cross sections
triangles
Neutron beams
Neutrons
Chemical activation
neutron beams
activation
Scattering
cross sections
scattering
neutrons
Neutron sources
neutron sources
rays
counting
direct current
Irradiation
Detectors
irradiation
nuclei

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films
  • Instrumentation
  • Surfaces and Interfaces

Cite this

Hutcheson, A. ; Angell, C. T. ; Becker, J. A. ; Boswell, M. ; Crowell, A. S. ; Dashdorj, D. ; Fallin, B. ; Fotiades, N. ; Howell, C. R. ; Karwowski, H. J. ; Kelley, J. H. ; Kiser, M. ; Macri, R. A. ; Nelson, R. O. ; Pedroni, R. S. ; Tonchev, A. P. ; Tornow, W. ; Vieira, D. J. ; Weisel, Gary ; Wilhelmy, J. B. / Pulsed and monoenergetic beams for neutron cross-section measurements using activation and scattering techniques at Triangle Universities Nuclear Laboratory. In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 2007 ; Vol. 261, No. 1-2 SPEC. ISS. pp. 369-372.
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Hutcheson, A, Angell, CT, Becker, JA, Boswell, M, Crowell, AS, Dashdorj, D, Fallin, B, Fotiades, N, Howell, CR, Karwowski, HJ, Kelley, JH, Kiser, M, Macri, RA, Nelson, RO, Pedroni, RS, Tonchev, AP, Tornow, W, Vieira, DJ, Weisel, G & Wilhelmy, JB 2007, 'Pulsed and monoenergetic beams for neutron cross-section measurements using activation and scattering techniques at Triangle Universities Nuclear Laboratory', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 261, no. 1-2 SPEC. ISS., pp. 369-372. https://doi.org/10.1016/j.nimb.2007.04.097

Pulsed and monoenergetic beams for neutron cross-section measurements using activation and scattering techniques at Triangle Universities Nuclear Laboratory. / Hutcheson, A.; Angell, C. T.; Becker, J. A.; Boswell, M.; Crowell, A. S.; Dashdorj, D.; Fallin, B.; Fotiades, N.; Howell, C. R.; Karwowski, H. J.; Kelley, J. H.; Kiser, M.; Macri, R. A.; Nelson, R. O.; Pedroni, R. S.; Tonchev, A. P.; Tornow, W.; Vieira, D. J.; Weisel, Gary; Wilhelmy, J. B.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 261, No. 1-2 SPEC. ISS., 01.08.2007, p. 369-372.

Research output: Contribution to journalArticle

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AU - Hutcheson, A.

AU - Angell, C. T.

AU - Becker, J. A.

AU - Boswell, M.

AU - Crowell, A. S.

AU - Dashdorj, D.

AU - Fallin, B.

AU - Fotiades, N.

AU - Howell, C. R.

AU - Karwowski, H. J.

AU - Kelley, J. H.

AU - Kiser, M.

AU - Macri, R. A.

AU - Nelson, R. O.

AU - Pedroni, R. S.

AU - Tonchev, A. P.

AU - Tornow, W.

AU - Vieira, D. J.

AU - Weisel, Gary

AU - Wilhelmy, J. B.

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N2 - In support of the Stewardship Science Academic Alliances initiative, an experimental program has been developed at Triangle Universities Nuclear Laboratory (TUNL) to measure (n,xn) cross-sections with both in-beam and activation techniques with the goal of improving the partial cross-section database for the NNSA Stockpile Stewardship Program. First experimental efforts include excitation function measurements on 235,238U and 241Am using pulsed and monoenergetic neutron beams with En = 5-15 MeV. Neutron-induced partial cross-sections were measured by detecting prompt γ rays from the residual nuclei using various combinations of clover and planar HPGe detectors in the TUNL shielded neutron source area. Complimentary activation measurements using DC neutron beams have also been performed in open geometry in our second target area. The neutron-induced activities were measured in the TUNL low-background counting area. In this presentation, we include detailed information about the irradiation procedures and facilities and preliminary data on first measurements using this capability.

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