New uses of position-sensitive photomultiplier tubes

Details New uses of position-sensitive photomultiplier tubes New uses of position-sensitive photomultiplier tubes

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992spie.1734..187g&link_type=abstract

Proc. SPIE Vol. 1734, p. 187-197, Gamma-Ray Detectors, Elena Aprile; Ed.

Biology

Scientific paper

Recent advances in photomultiplier tube technology have led to the availability of position sensitive photomultiplier tubes (PSPMTs). These tubes make it possible to build a new generation of imaging instruments for gamma rays and other types of ionizing radiation. We have investigated the use of these tubes for the construction of several prototype instruments. The first application investigated measures the quantity and distribution of radioactive compounds on filter papers used in microbiology research. The intent of this instrument is to replace film autoradiography with an electronic imaging system which can analyze samples 75 to 110 times faster than film. The second application involved the development of an intraoperative imaging probe to help surgeons identify cancerous tissue and ensure its complete removal. This instrument will replace a non-imaging probe now in use at many hospitals. A third prototype instrument under evaluation is an imaging nuclear survey system which obtains both a video and gamma ray image for the purpose of locating and quantifying radioactive materials. This system would be used at nuclear power plants and radioactive materials preparation facilities. A modification of this system could be built into robots used for inspecting and repairing power plants.

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