A high energy radon transform gamma-ray imaging system (REVEAL)

Author

Palmer, M.J. ; Ramsden, D.

Author_Institution

Dept. of Phys., Southampton Univ., UK

Volume

1

fYear

1996

fDate

2-9 Nov 1996

Firstpage

292

Abstract

A compact, gamma-ray imaging system based upon the Radon Transform Imaging technique is presented in this paper along with a reconstructed image of a test scene. This instrument is able to produce images which highlight areas of radioactive contamination within a large field of view (±45°) using data obtained by scanning the scene with a finely collimated, CsI(Tl)-photodiode detector. A detailed knowledge of the detector´s response-function and movement is then used to apply the maximum entropy image reconstruction technique. The instrument has been designed to operate over the energy range of 100 keV through to 662 keV and provides a simple, economical method for generating images in highly active environments using a compact detector

Keywords

Radon transforms; gamma-ray detection; radiation monitoring; 100 to 662 keV; CsI(Tl)-photodiode detector; CsI:Tl; REVEAL; Radon Transform Imaging; gamma-ray imaging system; maximum entropy image reconstruction; reconstructed image; response-function; Collimators; Contamination; Detectors; Entropy; Image reconstruction; Instruments; Layout; Nuclear imaging; Optical imaging; System testing;

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.1996.590962

Filename

590962