Design and Performance of a New Positron Computed Tomograph (P.C.T.) Using the Time-of-Flight (T.O.F.) Information

摘要

A new tomograph for positron imaging using the time of flight measurement is described. Fast CsF crystals are used in this first prototype. Compared to the classical reconstruction method, the results of adding this information is a substantial increase of sensitivity, a reduced random coincidence count rate, and slight decrease of a scatter contribution in the images. Further improvements in the T.O.F. accuracy can be expected in using faster crystals. (Atomindex citation 14:756104)