A DUAL-MODE INDUSTRIAL CT

Authors
RAPAPORT MS GAYER A ISZAK E GORESNIC C BARAN A POLAK E
Citation
Ms. Rapaport et al., A DUAL-MODE INDUSTRIAL CT, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 352(3), 1995, pp. 652-658
Citations number
12
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
352
Issue
3
Year of publication
1995
Pages
652 - 658
Database
ISI
SICI code
0168-9002(1995)352:3<652:ADIC>2.0.ZU;2-H
Abstract
A dual-mode industrial CT system was designed and constructed, such th at the lower and upper levels correspond to gamma-ray and X-ray CT sca nners respectively. The gamma-ray scanner makes use of a monoenergetic Cs-137 radioactive source and a BGO scintillator detector array emplo yed spectroscopically. The X-ray scanner makes use of a 160 kV cp X-ra y machine and CdWO4 scintillators operating in a current mode. The spa tial resolution of the gamma-ray scanner is 0.6 lp/mm, and that for th e X-ray scanner is 0.7 lp/mm. The contrast resolution is 0.5% for a vo lume of 1 cm(3) for both scanners. The utility of the system was exami ned on objects from the aircraft and chemical industry.