| 摘要 |
A scintillation cell having cylindrical symmetry, thickened walls, and components with different coefficients of thermal expansion. A pliable epoxy bonds the components together and accommodates their varying expansions during temperature changes. The glass through which passes the luminescence produced by the radioactive particles to the photomultiplier tube sits inside of the cylindrical metal tube to which it attaches. This recessed configuration protects the glass when the cell contacts a flat surface. Producing the cell involves spraying the luminescent material onto the inside of a metal tube. The metal tube receives the luminescent material while both heated and spinning. The spinning, heated cell can receive a multitude of coats of material at each application and, thus, prepares for use rapidly and economically. Subsequently, the substantially clear glass bonds sufficiently far inside of the tube over its open end to provide the recessed configuration.
|
