54Fe neutron elastic and inelastic scattering differential cross sections from 2–6 MeV

J. R. Vanhoy; S. H. Liu; S. F. Hicks; B. M. Combs; B. P. Crider; A. J. French; E. A. Garza; T. Harrison; S. L. Henderson; T. J. Howard; M. T. McEllistrem; S. Nigam; R. L. Pecha; E. E. Peters; F. M. Prados-Estévez; A. P.D. Ramirez; B. G. Rice; T. J. Ross; Z. C. Santonil; L. C. Sidwell; J. L. Steves; B. K. Thompson; S. W. Yates

doi:10.1016/j.nuclphysa.2018.02.004

⁵⁴Fe neutron elastic and inelastic scattering differential cross sections from 2–6 MeV

J. R. Vanhoy, S. H. Liu, S. F. Hicks, B. M. Combs, B. P. Crider, A. J. French, E. A. Garza, T. Harrison, S. L. Henderson, T. J. Howard, M. T. McEllistrem, S. Nigam, R. L. Pecha, E. E. Peters, F. M. Prados-Estévez, A. P.D. Ramirez, B. G. Rice, T. J. Ross, Z. C. Santonil, L. C. SidwellJ. L. Steves, B. K. Thompson, S. W. Yates

Chemistry

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

5 Scopus citations

Abstract

Measurements of neutron elastic and inelastic scattering cross sections from ⁵⁴Fe were performed for nine incident neutron energies between 2 and 6 MeV. Measured differential scattering cross sections are compared to those from previous measurements and the ENDF, JENDL, and JEFF data evaluations. TALYS calculations were performed and modifications of the default parameters are found to better describe the experimental cross sections. A spherical optical model treatment is generally adequate to describe the cross sections in this energy region; however, in ⁵⁴Fe the direct coupling is found to increase suddenly above 4 MeV and requires an increase in the DWBA deformation parameter by approximately 25%. This has little effect on the elastic scattering differential cross sections but makes a significant improvement in both the strength and shape of the inelastic scattering angular distribution, which are found to be very sensitive to the size and extent of the surface absorption region.

Original language	English
Pages (from-to)	107-120
Number of pages	14
Journal	Nuclear Physics A
Volume	972
DOIs	https://doi.org/10.1016/j.nuclphysa.2018.02.004
State	Published - Apr 2018

Bibliographical note

Publisher Copyright:
© 2018

Funding

Research at the University of Kentucky Accelerator Laboratory is supported by contracts from the U.S. Department of Energy NNSA-SSAP award NA-0002931 and Nuclear Energy Universities Program award NU-12-KY-UK-0201-05 , the U.S. National Isotope Development Program, and the Cowan Physics Fund at the University of Dallas. The authors also acknowledge the many contributions of H.E. Baber to these measurements.

Funders	Funder number
University of Kentucky Accelerator Laboratory
Michigan State University-U.S. Department of Energy (MSU-DOE) Plant Research Laboratory	NA-0002931, NU-12-KY-UK-0201-05

Keywords

Coupled channels
Differential cross sections
ECIS06
Fe(n,n)
Neutron elastic and inelastic scattering
TALYS

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/j.nuclphysa.2018.02.004

Cite this

Vanhoy, J. R., Liu, S. H., Hicks, S. F., Combs, B. M., Crider, B. P., French, A. J., Garza, E. A., Harrison, T., Henderson, S. L., Howard, T. J., McEllistrem, M. T., Nigam, S., Pecha, R. L., Peters, E. E., Prados-Estévez, F. M., Ramirez, A. P. D., Rice, B. G., Ross, T. J., Santonil, Z. C., ... Yates, S. W. (2018). ⁵⁴Fe neutron elastic and inelastic scattering differential cross sections from 2–6 MeV. Nuclear Physics A, 972, 107-120. https://doi.org/10.1016/j.nuclphysa.2018.02.004

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title = "54Fe neutron elastic and inelastic scattering differential cross sections from 2–6 MeV",

abstract = "Measurements of neutron elastic and inelastic scattering cross sections from 54Fe were performed for nine incident neutron energies between 2 and 6 MeV. Measured differential scattering cross sections are compared to those from previous measurements and the ENDF, JENDL, and JEFF data evaluations. TALYS calculations were performed and modifications of the default parameters are found to better describe the experimental cross sections. A spherical optical model treatment is generally adequate to describe the cross sections in this energy region; however, in 54Fe the direct coupling is found to increase suddenly above 4 MeV and requires an increase in the DWBA deformation parameter by approximately 25%. This has little effect on the elastic scattering differential cross sections but makes a significant improvement in both the strength and shape of the inelastic scattering angular distribution, which are found to be very sensitive to the size and extent of the surface absorption region.",

keywords = "Coupled channels, Differential cross sections, ECIS06, Fe(n,n), Neutron elastic and inelastic scattering, TALYS",

author = "Vanhoy, {J. R.} and Liu, {S. H.} and Hicks, {S. F.} and Combs, {B. M.} and Crider, {B. P.} and French, {A. J.} and Garza, {E. A.} and T. Harrison and Henderson, {S. L.} and Howard, {T. J.} and McEllistrem, {M. T.} and S. Nigam and Pecha, {R. L.} and Peters, {E. E.} and Prados-Est{\'e}vez, {F. M.} and Ramirez, {A. P.D.} and Rice, {B. G.} and Ross, {T. J.} and Santonil, {Z. C.} and Sidwell, {L. C.} and Steves, {J. L.} and Thompson, {B. K.} and Yates, {S. W.}",

note = "Publisher Copyright: {\textcopyright} 2018",

year = "2018",

month = apr,

doi = "10.1016/j.nuclphysa.2018.02.004",

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volume = "972",

pages = "107--120",

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Vanhoy, JR, Liu, SH, Hicks, SF, Combs, BM, Crider, BP, French, AJ, Garza, EA, Harrison, T, Henderson, SL, Howard, TJ, McEllistrem, MT, Nigam, S, Pecha, RL, Peters, EE, Prados-Estévez, FM, Ramirez, APD, Rice, BG, Ross, TJ, Santonil, ZC, Sidwell, LC, Steves, JL, Thompson, BK & Yates, SW 2018, '⁵⁴Fe neutron elastic and inelastic scattering differential cross sections from 2–6 MeV', Nuclear Physics A, vol. 972, pp. 107-120. https://doi.org/10.1016/j.nuclphysa.2018.02.004

TY - JOUR

T1 - 54Fe neutron elastic and inelastic scattering differential cross sections from 2–6 MeV

AU - Vanhoy, J. R.

AU - Liu, S. H.

AU - Hicks, S. F.

AU - Combs, B. M.

AU - Crider, B. P.

AU - French, A. J.

AU - Garza, E. A.

AU - Harrison, T.

AU - Henderson, S. L.

AU - Howard, T. J.

AU - McEllistrem, M. T.

AU - Nigam, S.

AU - Pecha, R. L.

AU - Peters, E. E.

AU - Prados-Estévez, F. M.

AU - Ramirez, A. P.D.

AU - Rice, B. G.

AU - Ross, T. J.

AU - Santonil, Z. C.

AU - Sidwell, L. C.

AU - Steves, J. L.

AU - Thompson, B. K.

AU - Yates, S. W.

PY - 2018/4

Y1 - 2018/4

N2 - Measurements of neutron elastic and inelastic scattering cross sections from 54Fe were performed for nine incident neutron energies between 2 and 6 MeV. Measured differential scattering cross sections are compared to those from previous measurements and the ENDF, JENDL, and JEFF data evaluations. TALYS calculations were performed and modifications of the default parameters are found to better describe the experimental cross sections. A spherical optical model treatment is generally adequate to describe the cross sections in this energy region; however, in 54Fe the direct coupling is found to increase suddenly above 4 MeV and requires an increase in the DWBA deformation parameter by approximately 25%. This has little effect on the elastic scattering differential cross sections but makes a significant improvement in both the strength and shape of the inelastic scattering angular distribution, which are found to be very sensitive to the size and extent of the surface absorption region.

AB - Measurements of neutron elastic and inelastic scattering cross sections from 54Fe were performed for nine incident neutron energies between 2 and 6 MeV. Measured differential scattering cross sections are compared to those from previous measurements and the ENDF, JENDL, and JEFF data evaluations. TALYS calculations were performed and modifications of the default parameters are found to better describe the experimental cross sections. A spherical optical model treatment is generally adequate to describe the cross sections in this energy region; however, in 54Fe the direct coupling is found to increase suddenly above 4 MeV and requires an increase in the DWBA deformation parameter by approximately 25%. This has little effect on the elastic scattering differential cross sections but makes a significant improvement in both the strength and shape of the inelastic scattering angular distribution, which are found to be very sensitive to the size and extent of the surface absorption region.

KW - Coupled channels

KW - Differential cross sections

KW - ECIS06

KW - Fe(n,n)

KW - Neutron elastic and inelastic scattering

KW - TALYS

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DO - 10.1016/j.nuclphysa.2018.02.004

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SN - 0375-9474

VL - 972

SP - 107

EP - 120

JO - Nuclear Physics A

JF - Nuclear Physics A

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