Title :
A High Pressure Xenon Proportional Chamber for X-Ray Laminographic Reconstruction Using Fan Beam Geometry
Author :
Boyd, D. ; Coonrod, J. ; Dehnert, J. ; Chu, D. ; Lim, C. ; Macdonald, B. ; Perez-Mendez, V.
Author_Institution :
High Energy Physics Laboratory, Stanford University Stanford, California 94305
Abstract :
A novel 50 cm long position sensing proportional chamber has been constructed for use in transverse section reconstruction measurements. Characteristics of this detector are: position resolution 1 mm, energy resolution 20%, efficiency at 60 keV 31%, and deadtime 2 ¿sec. Fan beam x-ray transmission measurements at many angles are stored in a PDP 11/45 minicomputer which performs and displays the density reconstruction in a 64 × 64 array encompassing the cross sectional contour of the scanned object.
Keywords :
Density measurement; Detectors; Energy resolution; Geometry; Goniometers; Microcomputers; Performance evaluation; Plasma displays; Position measurement; Xenon;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1974.4327460
