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This citation summarizes a one-page announcement of technology available for utilization. A report describes a novel radiation-dosimetry system that changes color in response to nuclear radiation. The system, which was developed for the U.S. Army Electronics Technology and Devices Laboratory, is based on ionizing-radiation-induced changes in the refractive index of radiochromic-dye solutions. The principle is adaptable to personal dosimeters. The dosimeter in this case is an optical fiber consisting of a polytetrafluoroethylene tube containing a radiochromic-dye solution in its core. Ordinarily, the solution in the core has a higher refractive index than the tube wall. The fiber then acts as an optical waveguide, propagating light through its length. ...FOR ADDITIONAL INFORMATION: Detailed information about the technology described may be obtained by ordering the NTIS report, order number: AD-A117308, price code: A02 or contact project officer Stanley Kronenberg (201) 544-4333.