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Measurements of fast neutron-induced fission data of Np-237

Abstract

We have performed the following measurements for {sup 237}Np using the 4.5 MV Dynamitron accelerator of Tohoku University as the pulsed neutron source: (1) Prompt fission neutron spectrum for 0.62 MeV incident neutrons, and (2) Neutron-Induced fission cross-section between 10 and 100 keV. The prompt fission neutron spectrum was measured using TOF method with a heavily shielded NE213 scintillation detector. The Maxwellian temperature T{sub m} derived is 1.28 MeV, which is lower than that of 1.38 MeV in JENDL-3.2. The fission cross sections were measured between 10 - 100 keV. The results are between JENDL-3.2 and ENDF/B-VI. (author)
Authors:
Win, Than; Saito, Keiichiro; Baba, Mamoru; Iwasaki, Tomohiko; Ibaraki, Masanobu; Miura, Takako; Sanami, Toshiya; Nauchi, Yasushi; Hirakawa, Naohiro [1] 
  1. Tohoku Univ., Sendai (Japan). Faculty of Engineering
Publication Date:
Mar 01, 1998
Product Type:
Technical Report
Report Number:
JAERI-Conf-98-003; CONF-9711144-; INDC(JPN)-180/U
Reference Number:
SCA: 663470; 663590; PA: JPN-98:007166; EDB-99:017686; SN: 98001997757
Resource Relation:
Conference: 1997 symposium on nuclear data, Tokai (Japan), 27-28 Nov 1997; Other Information: PBD: Mar 1998; Related Information: Is Part Of Proceedings of the 1997 symposium on nuclear data; Yoshida, Tadashi; Fukahori, Tokio [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Nuclear Code Committee of Japan] [eds.]; PB: 372 p.
Subject:
66 PHYSICS; NEPTUNIUM 237 TARGET; NEUTRON REACTIONS; KEV RANGE 10-100; PROMPT NEUTRONS; TIME-OF-FLIGHT METHOD; SCINTILLATION COUNTERS; NEUTRON SPECTRA; FISSION YIELD; CROSS SECTIONS; EXPERIMENTAL DATA
OSTI ID:
300359
Research Organizations:
Japan Atomic Energy Research Inst., Tokyo (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Other: ON: DE98755719; TRN: JP9807166
Availability:
OSTI as DE98755719
Submitting Site:
JPN
Size:
pp. 231-236
Announcement Date:
Feb 01, 1999

Citation Formats

Win, Than, Saito, Keiichiro, Baba, Mamoru, Iwasaki, Tomohiko, Ibaraki, Masanobu, Miura, Takako, Sanami, Toshiya, Nauchi, Yasushi, and Hirakawa, Naohiro. Measurements of fast neutron-induced fission data of Np-237. Japan: N. p., 1998. Web.
Win, Than, Saito, Keiichiro, Baba, Mamoru, Iwasaki, Tomohiko, Ibaraki, Masanobu, Miura, Takako, Sanami, Toshiya, Nauchi, Yasushi, & Hirakawa, Naohiro. Measurements of fast neutron-induced fission data of Np-237. Japan.
Win, Than, Saito, Keiichiro, Baba, Mamoru, Iwasaki, Tomohiko, Ibaraki, Masanobu, Miura, Takako, Sanami, Toshiya, Nauchi, Yasushi, and Hirakawa, Naohiro. 1998. "Measurements of fast neutron-induced fission data of Np-237." Japan.
@misc{etde_300359,
title = {Measurements of fast neutron-induced fission data of Np-237}
author = {Win, Than, Saito, Keiichiro, Baba, Mamoru, Iwasaki, Tomohiko, Ibaraki, Masanobu, Miura, Takako, Sanami, Toshiya, Nauchi, Yasushi, and Hirakawa, Naohiro}
abstractNote = {We have performed the following measurements for {sup 237}Np using the 4.5 MV Dynamitron accelerator of Tohoku University as the pulsed neutron source: (1) Prompt fission neutron spectrum for 0.62 MeV incident neutrons, and (2) Neutron-Induced fission cross-section between 10 and 100 keV. The prompt fission neutron spectrum was measured using TOF method with a heavily shielded NE213 scintillation detector. The Maxwellian temperature T{sub m} derived is 1.28 MeV, which is lower than that of 1.38 MeV in JENDL-3.2. The fission cross sections were measured between 10 - 100 keV. The results are between JENDL-3.2 and ENDF/B-VI. (author)}
place = {Japan}
year = {1998}
month = {Mar}
}