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.
Skip Nav Destination
ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation
September 21–25, 2003
Oxford, England
Conference Sponsors:
- Nuclear Engineering Division and Environmental Engineering Division
ISBN:
0-7918-3732-7
PROCEEDINGS PAPER
Special Radiometric Investigations at BNFL Sellafield and at the UKAEA Dounreay Available to Purchase
D. J. Thornley,
D. J. Thornley
BNFL Instruments, Calderbridge, Cumbria, UK
Search for other works by this author on:
A. S. Chesterman,
A. S. Chesterman
BNFL Instruments, Calderbridge, Cumbria, UK
Search for other works by this author on:
P. A. Clark,
P. A. Clark
BNFL Instruments, Calderbridge, Cumbria, UK
Search for other works by this author on:
R. D. Gunn,
R. D. Gunn
BNFL Instruments, Calderbridge, Cumbria, UK
Search for other works by this author on:
K. B. McCrindle,
K. B. McCrindle
BNFL Instruments, Calderbridge, Cumbria, UK
Search for other works by this author on:
S. Sampson,
S. Sampson
BNFL Instruments, Calderbridge, Cumbria, UK
Search for other works by this author on:
D. Lacey
D. Lacey
BNFL Engineering, Warrington, England
Search for other works by this author on:
D. J. Thornley
BNFL Instruments, Calderbridge, Cumbria, UK
A. S. Chesterman
BNFL Instruments, Calderbridge, Cumbria, UK
P. A. Clark
BNFL Instruments, Calderbridge, Cumbria, UK
R. D. Gunn
BNFL Instruments, Calderbridge, Cumbria, UK
K. B. McCrindle
BNFL Instruments, Calderbridge, Cumbria, UK
S. Sampson
BNFL Instruments, Calderbridge, Cumbria, UK
D. Lacey
BNFL Engineering, Warrington, England
Paper No:
ICEM2003-4692, pp. 865-870; 6 pages
Published Online:
February 24, 2009
Citation
Thornley, DJ, Chesterman, AS, Clark, PA, Gunn, RD, McCrindle, KB, Sampson, S, & Lacey, D. "Special Radiometric Investigations at BNFL Sellafield and at the UKAEA Dounreay." Proceedings of the 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. pp. 865-870. ASME. https://doi.org/10.1115/ICEM2003-4692
Download citation file:
11
Views
Related Proceedings Papers
Related Articles
Integrated Water and Waste Management System for Future Spacecraft
J. Eng. Ind (February,1975)
Radioactivity and Elements Measurements From Lagoon of Cocody Area District of Abidjan (Côte d'Ivoire)
ASME J of Nuclear Rad Sci (July,2021)
A Novel Assessment of Delayed Neutron Detector Data in CANDU Reactors
ASME J of Nuclear Rad Sci (October,2020)
Related Chapters
Short.Term Reactivity Change: Xenon Effects
Fundamentals of CANDU Reactor Physics
Dismantling
Decommissioning Handbook
Clean Closure Techniques
Guidebook for Waste and Soil Remediation: For Nonhazardous Petroleum and Salt Contaminated Sites