Published 1991 | Version v1
Report Metadata-only

Non-destructive isotopic uranium assay by multiple delayed neutron measurements

Creators

  • 1. National Research Centre for the Physical Sciences Democritos, Athens (Greece)

Description

The high accuracy and precision required in nuclear safeguards measurements can be achieved by an improved neutron activation technique based on multiple delayed fission neutron counting under various experimental conditions. For the necessary ultrahigh counting statistics required, cyclic activation of multiple subsamples has been applied. The home-made automated flexible analytical system with neutron flux and spectrum differentiation by irradiation position adjustment and cadmium screening, permits the non-destructive determination of the U235 abundance and the total U element concentration needed in nuclear safeguards sample analysis, with a high throughout and a low operational cost. Careful experimental optimization led to considerable improvement of the results

Part of:
Safeguards and Nuclear Material Management

Additional details

Publishing Information

Imprint Title
Safeguards and nuclear material management
Imprint Pagination
745 p.
Journal Page Range
p. 423-425.
Report number
EUR--13686

Conference

Title
13. Annual Symposium on Safeguards and Nuclear Material Management.
Dates
14-16 May 1991.
Place
Avignon (France).

INIS

Country of Publication
European Commission (EC), Brussels (Belgium)
Country of Input or Organization
European Commission (EC), Brussels (Belgium)
INIS RN
23087947
Subject category
S98: NUCLEAR DISARMAMENT, SAFEGUARDS AND PHYSICAL PROTECTION;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CADMIUM; DELAYED NEUTRON ANALYSIS; IAEA; ISOTOPE RATIO; MASS; SAFEGUARDS; URANIUM; URANIUM 235
Descriptors DEC
ACTINIDE NUCLEI; ACTINIDES; ALPHA DECAY RADIOISOTOPES; CHEMICAL ANALYSIS; ELEMENTS; EVEN-ODD NUCLEI; HEAVY NUCLEI; INTERNAL CONVERSION RADIOISOTO; INTERNATIONAL ORGANIZATIONS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; METALS; MINUTES LIVING RADIOISOTOPES; NONDESTRUCTIVE ANALYSIS; NUCLEI; RADIOISOTOPES; SPONTANEOUS FISSION RADIOISOTO; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES

Optional Information