Title :
A High-Resolution Proportional Chamber Positron Camera and Its Applications
Author :
Jeavons, A.P. ; Townsend, D.W. ; Ford, N.L. ; Kull, K. ; Manuel, A. ; Fischer, O. ; Peter, M.
Author_Institution :
CERN, Geneva, Switzerland
Abstract :
A positron camera consisting of two high density proportional chambers is described. It provides a spatial resolution of 2.4 mm FWHM, a maximum data rate of 3000 c.p.s. and a sensitivity of 25 c.p.s. per ¿Ci. Results of its application to angular correlation studies of condensed matter and to phantom and in vivo medical imaging are presented. A Fourier deconvolution technique is described for obtaining three-dimensional medical images. It uses a generalized matrix inversion by singular value decomposition to modify the low frequency Fourier components.
Keywords :
Biomedical imaging; Cameras; Deconvolution; Frequency; Imaging phantoms; In vivo; Matrix decomposition; Positrons; Singular value decomposition; Spatial resolution;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1978.4329298
