RadScan 600-a portable instrument for the remote imaging of gamma contamination: its design and use in aiding decommissioning strategy

Author

Hughes, K.A. ; Lightfoot, J.A.

Author_Institution

British Nucl. Fuels plc, Sellafield, UK

Volume

2

fYear

1996

fDate

2-9 Nov 1996

Firstpage

930

Abstract

BNFL Instruments RadScan 600 has been developed to allow the remote surveying of gamma radiation in a wide variety of environments. The device is based on a CsI crystal located in a tungsten collimator and is capable of detecting gamma rays with energies between 100 keV and 10 MeV. A colour CCD camera produces a visual image of the of the area undergoing survey. The key technical components of the device are described. The RadScan 600 has been used on a number of nuclear plants currently being decommissioned at Sellafield. The application of the device to the monitoring of a Windscale Pile chimney is presented. The monitoring of the chimney using RadScan 600 aided the decommissioning team to develop their strategy for the future decommissioning of the chimney

Keywords

fission reactor decommissioning; gamma-ray detection; radiation monitoring; radioisotope imaging; remote sensing; solid scintillation detectors; 100 keV to 10 MeV; CsI; CsI crystal; RadScan 600; W; Windscale Pile chimney; colour CCD camera; decommissioning strategy; gamma contamination; portable instrument; remote imaging; remote surveying; tungsten collimator; Charge coupled devices; Charge-coupled image sensors; Collimators; Gamma ray detection; Gamma ray detectors; Gamma rays; Instruments; Monitoring; Optical imaging; Tungsten;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE

Conference_Location

Anaheim, CA

ISSN

1082-3654

Print_ISBN

0-7803-3534-1

Type

conf

DOI

10.1109/NSSMIC.1996.591500

Filename

591500