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A novel nuclear survey instrument with an imaging capability is being developed for remotely locating high-level radioactive sources with minimal operator exposure. It combines an image of the… (More)
Novel radiopharmaceuticals have recently generated a resurgence of interest in the use of hand-held, intraoperative nuclear probes to provide in vivo localization of tumors. A hand-held… (More)
A prototype portal imager has been constructed using a linear array of 256 CdTe photovoltaic detectors, each 2*2*2 mm. The array is attached to a compact linear scanner which is to be mounted in a… (More)
Thermoelectrically cooled X-ray detectors based on Si-PIN and Cd/sub 1-x/Zn/sub x/Te (CZT) devices are now widely used in field portable XRF instrumentation. The current generation of Si-PIN… (More)
A combined video and gamma ray imaging system has been developed to rapidly determine the location, distribution, and intensity of gamma ray sources. This instrument includes both a conventional… (More)
The accuracy and precision of energy dispersive X-ray fluorescence (EDXRF) improve with improved detector energy resolution. However, there are always trade-offs between the highest energy resolution… (More)