研究目的
To present a complementary approach for radiation dosimetry by means of three different independent signals: radiophotoluminescence (RPL), optical absorption (OA), and nuclear track (NT) in the Ag+-glass, applicable in various radiation fields.
研究成果
The combination of RPL, OA, and NT signals in Ag+-glass allows for dose assessment across a wide dynamic range and LET spectrum, offering a versatile tool for radiation dosimetry in various fields, including nuclear reactor decommissioning and space radiation monitoring.
研究不足
The detection LET threshold of NT is very high for the current etching conditions, limiting its application to very high LET particles. The study suggests exploring other etchants or fluorescent NT detection to widen the dynamic range of LET.
1：Experimental Design and Method Selection:
The study employs Ag+-doped phosphate glass specimens irradiated with gamma-rays and heavy charged particles to assess dosimetry through RPL, OA, and NT signals.
2：Sample Selection and Data Sources:
Glass specimens of specific composition and size were used, irradiated with doses ranging from 30 μGy to 2 kGy for gamma-rays and various energy ion beams for heavy charged particles.
3：List of Experimental Equipment and Materials:
Equipment includes a readout system for RPL, UV-Visible spectrophotometer for OA, and a high-speed imaging microscope for NT after chemical etching.
4：Experimental Procedures and Operational Workflow:
Specimens were preheated, irradiated, and then analyzed for RPL, OA, and NT signals under specified conditions.
5：Data Analysis Methods:
Data analysis involved measuring RPL and OA intensities as functions of dose and LET, and determining track registration sensitivity for NT.
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