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Fission cross section measurement of Am-242m using lead slowing-down spectrometer

Abstract

By making use of double fission chamber and lead slowing-down spectrometer coupled to an electron linear accelerator, fission cross section for the {sup 242m}Am(n,f) reaction has been measured relative to that for the {sup 235}U(n,f) reaction in the energy range from 0.1 eV to 10 keV. The measured result was compared with the evaluated nuclear data appeared in ENDF/B-VI and JENDL-3.2, of which evaluated data were broadened by the energy resolution function of the spectrometer. Although the JENDL-3.2 data seem to be a little smaller than the present measurement, good agreement can be seen in the general shape and the absolute values. The ENDF/B-VI data are larger more than 50 % than the present values above 3 eV. (author)
Authors:
Kai, Tetsuya; Kobayashi, Katsuhei; Yamamoto, Shuji; Fujita, Yoshiaki; [1]  Kimura, Itsuro; Ohkawachi, Yasushi; Wakabayashi, Toshio
  1. Kyoto Univ., Kumatori, Osaka (Japan). Research Reactor Inst.
Publication Date:
Mar 01, 1998
Product Type:
Conference
Report Number:
JAERI-Conf-98-003; CONF-9711144-; INDC(JPN)-180/U
Reference Number:
SCA: 663470; 663590; PA: JPN-98:007165; EDB-99:017689; SN: 98001997756
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; AMERICIUM 242 TARGET; NEUTRON REACTIONS; EV RANGE 01-10; MILLI EV RANGE; NEUTRON SPECTROMETERS; SLOWING-DOWN; FISSION CHAMBERS; FISSION YIELD; CROSS SECTIONS; M CODES; MONTE CARLO METHOD; COMPUTERIZED SIMULATION
OSTI ID:
300358
Research Organizations:
Japan Atomic Energy Research Inst., Tokyo (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Other: ON: DE98755719; TRN: JP9807165
Availability:
OSTI as DE98755719
Submitting Site:
JPN
Size:
pp. 225-230
Announcement Date:
Feb 01, 1999

Citation Formats

Kai, Tetsuya, Kobayashi, Katsuhei, Yamamoto, Shuji, Fujita, Yoshiaki, Kimura, Itsuro, Ohkawachi, Yasushi, and Wakabayashi, Toshio. Fission cross section measurement of Am-242m using lead slowing-down spectrometer. Japan: N. p., 1998. Web.
Kai, Tetsuya, Kobayashi, Katsuhei, Yamamoto, Shuji, Fujita, Yoshiaki, Kimura, Itsuro, Ohkawachi, Yasushi, & Wakabayashi, Toshio. Fission cross section measurement of Am-242m using lead slowing-down spectrometer. Japan.
Kai, Tetsuya, Kobayashi, Katsuhei, Yamamoto, Shuji, Fujita, Yoshiaki, Kimura, Itsuro, Ohkawachi, Yasushi, and Wakabayashi, Toshio. 1998. "Fission cross section measurement of Am-242m using lead slowing-down spectrometer." Japan.
@misc{etde_300358,
title = {Fission cross section measurement of Am-242m using lead slowing-down spectrometer}
author = {Kai, Tetsuya, Kobayashi, Katsuhei, Yamamoto, Shuji, Fujita, Yoshiaki, Kimura, Itsuro, Ohkawachi, Yasushi, and Wakabayashi, Toshio}
abstractNote = {By making use of double fission chamber and lead slowing-down spectrometer coupled to an electron linear accelerator, fission cross section for the {sup 242m}Am(n,f) reaction has been measured relative to that for the {sup 235}U(n,f) reaction in the energy range from 0.1 eV to 10 keV. The measured result was compared with the evaluated nuclear data appeared in ENDF/B-VI and JENDL-3.2, of which evaluated data were broadened by the energy resolution function of the spectrometer. Although the JENDL-3.2 data seem to be a little smaller than the present measurement, good agreement can be seen in the general shape and the absolute values. The ENDF/B-VI data are larger more than 50 % than the present values above 3 eV. (author)}
place = {Japan}
year = {1998}
month = {Mar}
}