Miniature phoswich detector for gamma-ray localization and beta imaging


Journal Article

A combined γ-ray probe/γ+imaging detector was created through the modification of a beta imaging intra-operative probe. The phoswich detector consists of a thin CaF2(Eu) β+imaging disk, coupled through a light diffuser to 7 or 19 parallel-piped high-Z scintillation crystals arranged hexagonally in columns. The performance characteristics of the assembled prototype devices demonstrate that in surgery, this device can be used for: the rapid localization of γ emitting radionuclides with the modestly directional, self-collimated phoswich crystals; high-resolution β-imaging or coarse β+imaging in singles mode; or β+imaging in coincidence mode with reduced γ background contamination.

Duke Authors

Cited Authors

  • Tornai, MP; Levin, CS; MacDonald, LR; Holdsworth, CH; Hoffman, EJ

Published Date

  • December 1, 1997

Published In

  • Ieee Nuclear Science Symposium &Amp; Medical Imaging Conference

Volume / Issue

  • 2 /

Start / End Page

  • 1028 - 1032

Citation Source

  • Scopus