The effects of ionisation density on the glow curve structure of LiF:Mg,Ti (TLD-100): the behaviour of composite glow peak 5 in 'slow-cooled' material
| Autor: | Y.S. Horowitz, Y. Belaish, E. Fuks, L. Oster, B. Ben Shahar |
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| Rok vydání: | 2007 |
| Předmět: |
Materials science
Composite number Radiation Dosage Sensitivity and Specificity Fluorides Ionization Magnesium Radiology Nuclear Medicine and imaging Ions Neutrons Titanium Radiation Radiological and Ultrasound Technology Relative intensity Public Health Environmental and Occupational Health Reproducibility of Results Dose-Response Relationship Radiation Equipment Design General Medicine Equipment Failure Analysis Cooling rate Glow curve Beta (plasma physics) Lithium Compounds Thermoluminescent Dosimetry Thermoluminescent dosimeter Atomic physics Gamma irradiation |
| Zdroj: | Radiation Protection Dosimetry. 126:194-197 |
| ISSN: | 1742-3406 0144-8420 |
| DOI: | 10.1093/rpd/ncm041 |
| Popis: | The effects of ionisation density on the structure of the glow curve of LiF:Mg,Ti (TLD-100) are briefly reviewed and discussed within the framework of the spatially correlated TC/LC model and localised recombination. The effects of 'slow-cooling' on the structure of composite peak 5 following low-ionisation density beta/gamma irradiation are described and analysed in both 'slow-cooled' and 'normally cooled' samples. It is demonstrated that 'slow-cooling' using a cooling rate of 30 degrees C h(-1) increases the relative intensity of glow peak 5a to composite glow peak 5 from approximately 0.1 to approximately 2, thereby greatly improving the precision of measurement of the ratio 5a/5. The improved precision removes a hurdle impeding the development of the ionisation density discrimination properties of the peak 5a/5 nanodosimeter. |
| Databáze: | OpenAIRE |
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