Published March 1988 | Version v1
Report Restricted

Study of benchmark matrix effects in the neutron die-away assay of fissile material in 200l drums

Creators

  • 1. UKAEA Harwell Lab. (UK). Nuclear Physics and Instrumentation Div.

Description

An experimental study of eighteen different matrices on the accuracy of fissile material assay in 200l drums has already been reported. This work has been successfully extended to include the effects of matrices typical of BNFL waste arisings. Three benchmark matrices described as non-combustible and shreddable have been examined with the result that the mean compensated response for the matrices together with that of a matrix-free drum vary from 0.97 to 1.16. Although assay errors for the non-combustible matrices (with a standard deviation of 25%) are greater than in the earlier more comprehensive study, the matrices themselves are significantly more absorbing to thermal neutrons. (author)

Availability note (English)

MF available from INIS under the Report Number.

Files

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Additional details

Publishing Information

Imprint Pagination
20 p.
Report number
DOE-RW--88.075

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
20017809
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Descriptors DEI
ACCURACY; BENCHMARKS; FISSILE MATERIALS; MATRIX MATERIALS; RADIOACTIVE WASTE PROCESSING; RADIOASSAY
Descriptors DEC
FISSIONABLE MATERIALS; MANAGEMENT; MATERIALS; WASTE MANAGEMENT; WASTE PROCESSING

Optional Information

Contract/Grant/Project number
Contract PECD-7/9/09
Secondary number(s)
AERE-R--13065.