Published 1984 | Version v1
Book Metadata-only

Fast neutron dosimetry by means of the scraping sampling method

Creators

  • 1. Swiss Federal Inst. for Reactor Research, Wuerenlingen

Description

During the shut-down period of a nuclear plant, scraping samples could be taken from the surface of structural materials. From the measured 93m-Nb (16 y) and 54-Mn (315 d) activities the fast neutron fluence and flux density could be determined. Furthermore, by means of the 93m-Nb to 54-Mn activity ratio the calculated neutron spectrum could be adjusted. In order to measure the low energy (16.6 keV) X-ray activity of 93m-Nb, the niobium was separated from the steel by a chemical separation method, the yield being > 95%. The azimuthal neutron flux distribution on the PV inner wall could be determined by scraping samples of PV material at different azimuthal positions. (Auth.)

Additional details

Publishing Information

Publisher
D. Reidel.
Imprint Place
Dordrecht (Netherlands)
ISBN
90-277-2013-4
Imprint Title
Reactor dosimetry
Imprint Pagination
2 v. 1082 p.
Journal Page Range
p. 381-390.

Conference

Title
5. ASTM-Euratom symposium on reactor dosimetry.
Dates
24-28 Sep 1984.
Place
Geesthacht (Germany, F.R.).

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
18032888
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CHEMICAL ANALYSIS; COBALT 58; FAST NEUTRONS; GAMMA SPECTROSCOPY; MANGANESE 54; NEUTRON DOSIMETRY; NIOBIUM 93; PRECIPITATION; PRESSURE VESSELS; X-RAY SPECTROSCOPY
Descriptors DEC
BARYONS; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; COBALT ISOTOPES; CONTAINERS; DAYS LIVING RADIOISOTOPES; DOSIMETRY; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTARY PARTICLES; FERMIONS; HADRONS; HOURS LIVING RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTO; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MANGANESE ISOTOPES; NEUTRONS; NIOBIUM ISOTOPES; NUCLEI; NUCLEONS; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; RADIOISOTOPES; SEPARATION PROCESSES; SPECTROSCOPY; STABLE ISOTOPES; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
7 refs.; 1 figure. Imprint:Includes author index; many refs.; many figs.; many tabs.