0

Full Content is available to subscribers

Subscribe/Learn More  >

Special Radiometric Investigations at BNFL Sellafield and at the UKAEA Dounreay

[+] Author Affiliations
D. J. Thornley, A. S. Chesterman, P. A. Clark, R. D. Gunn, K. B. McCrindle, S. Sampson

BNFL Instruments, Calderbridge, Cumbria, UK

D. Lacey

BNFL Engineering, Warrington, England

Paper No. ICEM2003-4692, pp. 865-870; 6 pages
doi:10.1115/ICEM2003-4692
From:
  • ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation
  • 9th ASME International Conference on Radioactive Waste Management and Environmental Remediation: Volumes 1, 2, and 3
  • Oxford, England, September 21–25, 2003
  • Conference Sponsors: Nuclear Engineering Division and Environmental Engineering Division
  • ISBN: 0-7918-3732-7 | eISBN: 0-7918-3731-9
  • Copyright © 2003 by ASME

abstract

Radiometric specialist measurements are required for a variety of activities at Sellafield such as support to operational plants, building management, waste management and decommissioning. Measurements are performed using mainly standard components in a novel configuration or using standard products for a non standard application. They are required, for example, to characterise radioactive material which may be outside the normal operating envelope of installed monitoring systems, provide radiometric characterization to aid plant operations, characterise the neutron moderating / absorption properties of materal and vessels, identify the source and characteristics of blockages which may occur in plant vessels and pipes etc. Examples of recent projects have included: • Special investigations of residue material from fuel manufacturing operations, using a combination of Total Neutron Counting, Neutron Coincidence Counting and High Resolution Gamma Spectrometry. • Dose rate measurements and surveys in environments up to 100 Sv/hr in various locations at the Sellafield reprocessing plants. Applications include in-cell measurements and underwater measurements in fuel ponds. • Neutron transmission measurements to verify the presence of absorbing material in plant vessels. • HRGS gamma surveys to identify and quantify a wide variety of radionuclides in waste handling and decommissioing operations. This paper provides insight into BNFL Instrument’s Special Investigation work and will provide examples of interesting projects which have been successfully carried out recently at Sellafield and Dounreay.

Copyright © 2003 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In