Evaluation of neutron resonance parameters for Zr isotopes

Ichihara, Akira

In the Nuclear Data Center of Japan Atomic Energy Agency (JAEA-NDC), we are engaged in the evaluation activity for the next version of the Japanese Evaluated Nuclear Data Library, JENDL-4.0. Zirconium is an important structural material in nuclear reactors, and zircaloys are being employed in fuel rods. Also, $^{93}$ Zr is a long-lived fission product (LLFP) with a half-life of 1.6110 $^{6}$ years. At present we are investigating resonance parameters of Zr isotopes using experimental data published after the evaluation of JENDL-4.0. Through this work, a negative resonance of $^{93}$ Zr in JENDL-4.0 was removed to reproduce the J-PARC/MLF/ANRRI experiment. The resonance parameters for other natural Zr isotopes will be altered by adopting the data obtained at CERN n-TOF experiments.

Language	:	English
Journal	:	JAEA-Conf 2017-001
Volume	:
Number	:
Pages	:	p.103 - 108
Publication Year/Month	:	2018/01
Meeting title	:	2016年度核データ研究会
Held date	:	2016/11
Location (city)	:	つくば
Location (country)	:	日本
Patent information	:
PDF	:
Paper URL	:	https://doi.org/10.11484/jaea-conf-2017-001
DOI for research data	:
Keywords	:	Neutron Nuclear Data; JENDL; Resonance Parameter
Research Facility	:
Press Release	:
Article of JAEA R&D Review	:
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Registration No. : BB20161282
JAEA Abstracts No. :
Paper Submission No. : 19919

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