| 摘要 |
Embodiments of the present invention relate to the detection of radioactivity in fluids, and in particular to the design of scintillators for use with a radiation detection system. The invention provides radioactivity detection apparatus for detecting radioactivity in a fluid carried in a conduit (101), the apparatus comprising: a scintillating member (204) responsive to the absorption of radioactivity to generate electromagnetic radiation, the scintillating member having two ends (201, 206) and a side surface, said side surface extending between said two ends; a support for holding the scintillating member in a detecting position with respect to the conduit; and an electromagnetic radiation detection system (211) arranged to provide an electrical signal indicative of radiation released by said scintillating member, wherein at least one end of the scintillating member is arranged to face the detection system, and the apparatus is arranged, when said scintillating member is in said detecting position, such that the scintillating member lies in a plane oriented substantially perpendicular to the conduit and said side surface of the scintillating member faces the conduit. |
