239Pu and 241Am (n, 2n) cross-section measurements near En=14 MeV

被引：23

作者：

Lougheed, RW ^{[1
]}

Webster, W ^{[1
]}

Namboodiri, MN ^{[1
]}

Nethaway, DR ^{[1
]}

Moody, KJ ^{[1
]}

Landrum, JH ^{[1
]}

Hoff, RW ^{[1
]}

Dupzyk, RJ ^{[1
]}

McQuaid, JH ^{[1
]}

Gunnink, R ^{[1
]}

Watkins, ED ^{[1
]}

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

来源：

RADIOCHIMICA ACTA | 2002年 / 90卷 / 12期

关键词：

neutron cross sections; plutonium; Americium; fission products; 14 MeV neutrons;

D O I：

10.1524/ract.2002.90.12_2002.833

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We measured the (n, 2n) cross sections for neutron energies from 13.7 to 15.1 MeV on Pu-231 and Am-241 by alpha- and gamma-spectroscopy measurements of the post-irradiation Pu-238/Pu-239 Pu and Am-240/Am-241 ratios relative to the (n, 2n) cross sections of Au-196 and other calibration reactions. Statistical errors on the measurements were not more than a few percent. Cross-section values ranged from 228 to 214 millibams for the reaction on Pu-239 and from 260 to 222 millibams for the Am-241 reaction for neutron energies from 13.7 to 15.1 MeV.

引用

页码：833 / 843

页数：11

共 17 条

[1] BARRALL RC, 1969, SUHP692 STANF U
[2] 239Pu(n,2n)238Pu cross section deduced using a combination of experiment and theory -: art. no. 021601
Bernstein, LA
Becker, JA
Garrett, PE
Younes, W
McNabb, DP
Archer, DE
McGrath, CA
Chen, H
Ormand, WE
Stoyer, MA
Nelson, RO
Chadwick, MB
Johns, GD
Wilburn, WS
Devlin, M
Drake, DM
Young, PG
[J]. PHYSICAL REVIEW C, 2002, 65 (02): : 216011 - 216015
[3] ROTATING NEUTRON TARGET SYSTEM
BOOTH, R
[J]. IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1967, NS14 (03) : 938 - &
[4] TRITIUM TARGET FOR INTENSE NEUTRON SOURCE
BOOTH, R
BARSCHALL, HH
[J]. NUCLEAR INSTRUMENTS & METHODS, 1972, 99 (01): : 1 - +
[5] England T.R., 1994, Tech. rep., LA-UR-94-3106
[6] Filatenkov AA, 1997, SOC ITAL FI, V59, P1313
[7] Firestone R. B., 1996, Table of Isotopes, V8th
[8] FREHAUT J, 1985, P INT C NUCLEAR DATA, P1561
[9] Fu C. Y., 1982, Proceedings of the Fourth ASTM-EURATOM Symposium on Reactor Dosimetry. Radiation Metrology Techniques, Data Bases, and Standardization (NUREG/CP-0029), P877
[10] FUNNINK R, 1985, UCRL532139, V44

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