237Np Fission Spectrum Cumulative Fission Product Yield Measurement Using Godiva IV Critical Assembly

被引：0

作者：

Tamashiro, A. S. ^{[1
]}

Harke, J. T. ^{[2
]}

Duarte, J. G. ^{[2
]}

Mishnayot, Y. ^{[2
]}

Burcher, S. ^{[2
]}

Padgett, S. W. ^{[2
]}

Zhao, P. ^{[2
]}

Pierson, B. D. ^{[3
]}

Gharibyan, N. ^{[2
]}

Goda, J. M. ^{[4
]}

Greenwood, L. R. ^{[3
]}

Hayes, D. K. ^{[4
]}

Hutchinson, J. ^{[4
]}

Harward, N. ^{[2
]}

Roberts, K. ^{[2
]}

Slavik, G. ^{[2
]}

Yap-Chiongco, P. ^{[2
]}

Walker, J. ^{[4
]}

Palmer, C. J. ^{[1
]}

机构：

[1] Oregon State Univ, Corvallis, OR 97331 USA

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

[3] Pacific Northwest Natl Lab, Richland, WA 99352 USA

[4] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

NUCLEAR DATA SHEETS | 2024年 / 193卷

关键词：

NUCLEAR-DATA SHEETS; NEUTRON-INDUCED FISSION;

D O I：

10.1016/j.nds.2024.01.006

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Precise integral measurement of fast neutron-induced fission product yields for various actinides is of high interest for applied nuclear science. The goal of this effort is to improve uncertainties in fission product yield values of 237Np. Fission was induced in a NpO2(NO3) target using the Godiva IV critical assembly in burst mode. The irradiated sample was transferred to a high-resolution gamma-ray detection setup within 50 minutes. gamma-ray list mode data was collected from 50 minutes to 1 week after the irradiation. gamma-ray spectroscopy was performed to analyze the time dependent gamma-ray yields using an automated peak search algorithm to identify isotopes by their decay gamma-ray energy and half-life. The initial activity for each isotope identified was used to calculate their fission product yield.

引用

页码：131 / 152

页数：22

共 37 条

[1] 237Np Fission Spectrum Cumulative Fission Product Yield Measurement Using Godiva IV Critical Assembly
Tamashiro, A.S.
Harke, J.T.
Duarte, J.G.
Mishnayot, Y.
Burcher, S.
Padgett, S.W.
Zhao, P.
Pierson, B.D.
Gharibyan, N.
Goda, J.M.
Greenwood, L.R.
Hayes, D.K.
Hutchinson, J.
Harward, N.
Roberts, K.
Slavik, G.
Yap-Chiongco, P.
Walker, J.
Palmer, C.J.
Nuclear Data Sheets, 2024, 193 : 131 - 152
[2] 239Pu Fission Spectrum Cumulative Fission Product Yield Measurement Using Godiva IV Critical Assembly
Tamashiro, A. S.
Harke, J. T.
Duarte, J. G.
Mishnayot, Y.
Padgett, S. W.
Slavik, G.
Burcher, S.
Harward, N.
Gharibyan, N.
Henderson, R. A.
Greenwood, L. R.
Pierson, B. D.
Goda, J. M.
Bounds, J. A.
Hayes, D. K.
Palmer, C. J.
NUCLEAR DATA SHEETS, 2024, 193 : 153 - 177
[3] Measurement of 237Np fission rate ratio relative to 235U fission rate in cores with various thermal neutron spectrum at the Kyoto University Critical Assembly
Unesaki, H
Iwasaki, T
Kitada, T
Kohashi, A
Fujiwara, D
Kuroda, M
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Ikeuchi, Y
Shiroya, S
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 2000, 37 (08) : 627 - 635
[4] Measurement of delayed-neutron yield from 237Np fission induced by thermal neutrons
Gundorin, N. A.
Zhdanova, K. V.
Zhuchko, V. E.
Pikelner, L. B.
Rebrova, N. V.
Salamatin, I. M.
Smirnov, V. I.
Furman, V. I.
PHYSICS OF ATOMIC NUCLEI, 2007, 70 (06) : 975 - 982
[5] Measurement of delayed-neutron yield from 237Np fission induced by thermal neutrons
N. A. Gundorin
K. V. Zhdanova
V. E. Zhuchko
L. B. Pikelner
N. V. Rebrova
I. M. Salamatin
V. I. Smirnov
V. I. Furman
Physics of Atomic Nuclei, 2007, 70 : 975 - 982
[6] Measurement and analysis of fission and capture fission cross section ratios of 237Np/235U
Wang, S.-X., 1600, Atomic Energy Press (47):
[7] New constraint on the 237 Np( n , γ ) 238 Np integral cross section using the Godiva-IV critical assembly
Tamashiro, A. S.
Burcher, S.
Harke, J. T.
Pierson, B.
Duarte, J. G.
Mishnayot, Y.
Padgett, S. W.
Zhao, P.
Gharibyan, N.
Goda, J.
Greenwood, L.
Hayes, D.
Hutchinson, J.
Harward, N.
Roberts, K.
Slavik, G.
Walker, J.
PHYSICAL REVIEW C, 2024, 110 (01)
[8] Measurement of the energy dependence of the parameters of delayed neutrons accompanying fission of 237Np by fast neutrons
Piksaikin, VM
Balakshev, YF
Isaev, SG
Kazakov, LE
Korolev, GG
Mil'shin, VI
ATOMIC ENERGY, 1998, 85 (01) : 479 - 486
[9] Measurements of absolute delayed neutron yield and group constants in the fast fission of 235U and 237Np
Loaiza, DJ
Brunson, G
Sanchez, R
Butterfield, K
NUCLEAR SCIENCE AND ENGINEERING, 1998, 128 (03) : 270 - 277
[10] Post-neutron mass yield distribution in the epi-cadmium neutron induced fission of 237Np
Naik, H.
Dange, S. P.
Jang, W.
Singh, R. J.
NUCLEAR SCIENCE AND ENGINEERING, 2021, 196 (01) : 16 - 39

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