INTERGRATING FIBER OPTIC RADIATION DOSIMETER

THE PROPOSED PROJECT WILL DEMONSTRATE THE FEASIBILITY OF EMPLOYING ELECTRON TRAPPING (ET) MATERIALS WITH FIBER OPTICS FILAMENTS FOR USE AS MICROPROBE RADIATION DOSIMETERS.THE ET MATERIALS TM CAN BE INTERROGATED BY NEAR-INFRARED TO PRODUCE VISIBLE OUTPUT SCALABLE TO RADIATION DOSES AT THE FIBER TIP. PHASE I WILL ASSESS THE PERFORMANCE OF SUCH MATERIALS AS MICROPORBE RADIATION DETECTORS INTEGRATED WITH FIBEROPTICS. DURING PHASE I PHYSICAL ARRANGEMENTS FOR INTERGRAT ING THE ET MATERIALS TM WITH THE FIBERS WILL BE DEFINED, SAMPLE MICROPROBES WILL BE FABRICATED AND EVALUATED FOR SENSITIVITY, SATURATION LEVELS, STORAGE RETENTION IN THE IONIZATION ENVIRONMENT, READ AND ERASE CHARACTERISTICS, LONG-TERM INTERGRITY OF THE MATERIALS, AND PRELIMINARY ASSESSMENT OF RADIATION HARDNESS.