| Budget Amount *help |
¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
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| Outline of Final Research Achievements |
We investigated the characterisation and comparison of micro-scale patterns in Ag-activated glass and LiF crystal written by a proton beam. A variety of micro-scale structures based on radiophotoluminescent (RPL) centres in Ag-activated glasses and in LiF crystals were visualised by confocal microscopes. The origins of different RPL intensity profiles in a plateau region along the axial direction in both materials were examined and discussed.
Moreover, we also reported the demonstration of a variable periodic time operated fibre-coupled dosimetry system using Ag-activated glass. In order to overcome the inevitable “build-up”effect occurring in RPL glasses during and after X-ray irradiation, pertinent experiments were carried out. Build-up curves and corresponding build-up rates were measured for different excitation wavelengths,temperatures and variable intervals were examined. The quick response of the dosimetry system developed here to the on/off switching operations was confirmed.
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