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[Dosimetric application of lyoluminescence using some saccharides]
Radioisotopes
|December 1, 1984
Summary
Lyoluminescent dosimetry using saccharides offers reproducible high-dose measurements (1Gy-10kGy). Galactose and trehalose show high sensitivity, making them ideal for radiation dosimetry applications.
Area of Science:
- Radiation chemistry
- Analytical chemistry
- Biophysics
Context:
- Lyoluminescence (LL) dosimetry is a sensitive method for measuring absorbed radiation doses.
- Saccharides are promising materials for LL dosimetry due to their stability and dosimetric properties.
- A novel photon-counting system was developed for enhanced LL measurements.
Purpose:
- To construct and evaluate a lyoluminescence measurement system for saccharide-based dosimetry.
- To investigate the dosimetric characteristics of various monosaccharides and disaccharides.
- To determine the optimal conditions for reproducible LL measurements and assess sensitivity and dose range.
Summary:
- A photon-counting system was utilized for lyoluminescence measurements of seven saccharide samples (monosaccharides and disaccharides) irradiated with 60Co gamma rays.
- Optimal conditions for reproducible measurements were identified, including sample amount (3 mg) and luminol concentration (125 mg/l).
- Lyoluminescent dosimetry proved effective for high dose regions (1Gy-10kGy), with galactose and trehalose extending the range and exhibiting significant sensitivity differences.
Impact:
- Establishes saccharides as reliable materials for high-dose lyoluminescence dosimetry.
- Demonstrates the utility of the developed photon-counting system for routine dosimetric analysis.
- Provides valuable data on the sensitivity and dose range of different saccharides for radiation applications.