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Simple and Efficient System for Fast Interchange of Low-Energy Collimators

Long Island Jewish-Hillside Medical Center, Jamaica
State University of New York at Stony Brook, Stony Brook, New York

Correspondence: For reprints contact: H. Malamud, Queens Hospital Center, Affiliation of Long Island Jewish-Hillside Medical Center, 82-68 164th St., Jamaica, N.Y. 11432.

ABSTRACT

The inconvenience and time required for changing collimators on a scinticamera are major problems in the efficient use of the apparatus. A system is described, based on the lightweight, reversible DIVCON collimator made by Searle Radiographies for the Pho/Gamma camera that solves this problem. The core of a straight-bore, low-energy collimator is adapted to fit the DIVCON outer ring and a low-energy pinhole collimator is constructed to fit the same mounting system. Finally, an adapter using a bayonet-mount slot system is added to make collimator changing by hand possible in a minute or less.