DEVELOPMENTS AT NIST Researchers at the National Institute of Standards and Technology (NIST) have developed a number of new devices and methods involving a variety of technologies. In certain cases, other parties have participated in the development of these technologies. NIST may enter into a Cooperative Research and Development Agreement (CRADA) with interested parties to perform further research on the invention for purposes of commercialization. NIST may grant CRADA Partners an option to negotiate for exclusive licenses to any jointly owned inventions which arise from the CRADA as well as an option to negotiate for exclusive royalty-bearing licenses for NIST employee inventions which arise from the CRADA. Anyone interested in the further development of any of these technologies or in applying for a license to commercialize these technologies should send a written request for further information, referencing the NIST DOCKET Number and Title to: National Institute of Standards and Technology, Office of Technology Partnerships, Building 820, Room 213, Gaithersburg, Maryland 20899; Telecopy: 301-869-2751. This is not an announcement of a contract action or a grant. NIST DOCKET NUMBER: 99-005PA, Title: Registered Location Radiation Intensity Scanner, Description: A gamma radiation sensing device is described which can be used to create a detailed three dimensional intensity distribution of a high radiation zone and to map the radiation intensity as a registered color contour field of a three dimensional geometric model of the radiation zone. The device consists of two mated hemispheres fabricated from material with high-gamma blocking capability. The hemispheres contain an offset mating surface that precludes the mating surface functioning as a radiation channel to the center of the mated sphere. A small-bore linear collimation channel is machined into each hemisphere to create a single, narrow bore viewing path to a central radiation sensing means located at the core of the sphere. The sensing element (an ionization probe, scintillator, or similar radiation sensitive means) is positioned so that it is at the terminus of the radiation channel. A circuitous path means machined into the hemisphere mating surfaces carries the signal (through the use of a flexible cable means-either coaxial or fiber optic) from the sensor to a remote electronic diagnostic and data logging means located well outside the high radiation environment. The circuitous path serves to restrict direct radiation entry to the sensor from all sources except those in line-of-sight with the collimated radiation channel. WEB: NIST Contracts Homepage, http://www.nist.gov/admin/od/contract/contract.htm. E-MAIL: NIST Contracts Office, Contract@nist.gov. Posted 09/24/99 (W-SN384210).

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