Published March 2015 | Version v1
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Characterization of NiC/Ti supermirror deposited on a metallic substrate

Creators

  • 1. Japan Atomic Energy Agency, Sector of Nuclear Science Research, Nuclear Science Research Institute, Tokai, Ibaraki (Japan)
  • 2. Japan Atomic Emerge Agency, Sector of Nuclear Science Research, J-PARC Center, Tokai, Ibaraki (Japan)

Description

Neutron guide tubes, which are installed near reactor cores, are damaged by neutrons and gamma rays irradiation. Those glass substrates which contain boron material are affected by (n, α) reaction, and ionization effect of gamma rays on material strength decrease duration of use of neutron guide tubes. In order to increase resistance to radiation, we have fabricated a supermirror with Ni-P metallic substrate. The substrate roughness with 0.3 - 0.4 nm (rms) was produced by superpolishing. The neutron reflectivity reached 76% for an m=3 supermirror. (author)

Availability note (English)

Available from JAEA; DOI: https://doi.org/10.11484/jaea-research-2014-029

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Additional details

Identifiers

DOI
10.11484/jaea-research-2014-029;

Publishing Information

Imprint Pagination
20 p.
Report number
JAEA-Research--2014-029

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
46136566
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S36: MATERIALS SCIENCE;
Descriptors DEI
BORON; GAMMA RADIATION; GUIDE TUBES; MIRRORS; NEUTRON GUIDES; NEUTRON REACTIONS; NEUTRON REFLECTORS; PHYSICAL RADIATION EFFECTS; REACTOR CHANNELS; REACTOR CORES; REFLECTIVITY; SUBSTRATES
Descriptors DEC
BARYON REACTIONS; ELECTROMAGNETIC RADIATION; ELEMENTS; HADRON REACTIONS; IONIZING RADIATIONS; NUCLEAR REACTIONS; NUCLEON REACTIONS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; RADIATION EFFECTS; RADIATIONS; REACTOR COMPONENTS; SEMIMETALS; SURFACE PROPERTIES; TUBES

Optional Information

Notes
15 refs., 3 figs., 2 tabs., 3 photos