Published April 2019 | Version v1
Journal article Metadata-only

Neutron absorption in supermirror coatings: Effects on shielding

Creators

  • 1. Department for Neutron Materials Characterization, Institutt for Energiteknikk, Instituttveien 18, Postboks 40, NO-2027 Kjeller (Norway)
  • 2. SwissNeutronics AG, Brühlstrasse 28, CH-5313 Klingnau (Switzerland)
  • 3. Physik-Department E21, Technische Universität München, James-Franck-Str. 1, D-85748 Garching (Germany)

Description

The quantification of the dose rate and the composition of the dose in the vicinity of supermirror coated guides is essential for designing shielding for beamlines transporting neutrons with a high flux. We present results on a calculation of radiative neutron absorption in Ni/Ti and NiMo/Ti supermirror coatings which leads to the emission of high energy gamma rays. A simple parameterization of the absorption probability in the coating materials per incident neutron is given as a function of momentum transfer at reflection.

Additional details

Identifiers

DOI
10.1016/j.nima.2018.12.069;
PII
S0168900218318837;

Publishing Information

Journal Title
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Journal Volume
922
Journal Page Range
p. 98-107
ISSN
0168-9002
CODEN
NIMAER

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
55021269
Subject category
S61: RADIATION PROTECTION AND DOSIMETRY; S36: MATERIALS SCIENCE;
Descriptors DEI
ABSORPTION; COATINGS; DESIGN; DOSE RATES; GAMMA RADIATION; MATERIALS; MOMENTUM TRANSFER; NEUTRON TRANSPORT; NEUTRONS; RADIATION DOSES; SHIELDING
Descriptors DEC
BARYONS; DOSES; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; FERMIONS; HADRONS; IONIZING RADIATIONS; NEUTRAL-PARTICLE TRANSPORT; NUCLEONS; RADIATION TRANSPORT; RADIATIONS; SORPTION

Optional Information

Copyright
Copyright (c) 2019 Elsevier B.V. All rights reserved.