| 摘要 |
A radiation detector including a chamber (11; 51) capable of being filled with an ionizable and scintillating substance, and a radiation entrance (13; 53) arranged such that radiation (.gamma.; X) can enter said chamber partly for ionizing said ionizable and scintillating substance, partly for being converted into light (h.nu.) therein, is disclosed. The detector further includes a light detector (17; 57) for detection of said light, and an electron avalanche detector (19; 59) for avalanche amplification and detection of electrons (e-) released as a result of the ionization. Further, there are provided means for correlating detected light and detected electrons, which are derivable from a single radiation photon; and means for producing a signal from the correlated detected light and detected electrons. The detector is particularly suitable for positron emission tomography (PET).
|
