A 5 inch diameter position-sensitive scintillation counter

Author

He, Z. ; Bird, A.J. ; Ramsden, D. ; Meng, Y.

Author_Institution

Dept. of Phys., Southampton Univ., UK

fYear

1992

fDate

25-31 Oct 1992

Firstpage

129

Abstract

A 5-in-diameter hard X-ray imager has been built, and position resolution of 4.0 mm FWHM has been obtained at 122 keV using a 3-mm-thick, 125-mm-diameter NaI(Tl) crystal with a 100-mm-diameter exit window. The results show that the light output and spatial resolution vary considerably over the surface of such a detector. In order to make the best use of the imaging capability of these tubes, individual photon events must be corrected both in energy and in position. The results of a 300 point detailed survey of the position-sensitive detector demonstrate its overall performance. A thyroid phantom image was obtained using this imager

Keywords

X-ray detection and measurement; biomedical equipment; position sensitive particle detectors; scintillation counters; 122 keV; 4 mm; 5 in; NaI(Tl); NaI:Tl; hard X-ray detector; light output; performance; position resolution; position-sensitive scintillation counter; spatial resolution; thyroid phantom; Biomedical imaging; Cameras; Conducting materials; Optical imaging; Photomultipliers; Physics; Position sensitive particle detectors; Scintillation counters; Spatial resolution; X-ray imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference, 1992., Conference Record of the 1992 IEEE

Conference_Location

Orlando, FL

Print_ISBN

0-7803-0884-0

Type

conf

DOI

10.1109/NSSMIC.1992.301132

Filename

301132