The arrangement imaging a body through gamma radiation comprising the steps of detecting, within each fixed time period of a succession of fixed time periods at a plurality of locations impinged by the gamma radiation, electric charge levels corresponding to photoelectric events; counting within each fixed period only those charge levels at each location which are greater than a predetermined threshold level, and adding the counted charge levels for the succession of fixed time periods, whereby a distinct image of the body may be produced therefrom.
申请公布号
US5132542(A)
申请公布日期
1992.07.21
申请号
US19910652970
申请日期
1991.02.11
申请人
BASSALLECK, BERND;HARTSHORNE, MICHAEL F.;KELSEY, CHARLES A.;METTLER, FREDERICK A.;WOLFE, DAVID M.
发明人
BASSALLECK, BERND;HARTSHORNE, MICHAEL F.;KELSEY, CHARLES A.;METTLER, FREDERICK A.;WOLFE, DAVID M.