Characterisation of OSL and OSLN droplets for dosimetry
| Autor: | L.F. Nascimento, Y De Deene, Filip Vanhavere, C.V. Saldarriaga, E. D'Agostino, A. C. S. Vaniqui |
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| Rok vydání: | 2013 |
| Předmět: |
Luminescence
Materials science Optically stimulated luminescence Polymers Electrons Thermoluminescence Ionizing radiation Fluorides Lithium Carbonate Aluminum Oxide Dosimetry Radiology Nuclear Medicine and imaging Neutron Radiometry Ions Neutrons Radiation Radiological and Ultrasound Technology Phantoms Imaging business.industry X-Rays Radiochemistry Public Health Environmental and Occupational Health X-ray General Medicine Neutron radiation Carbon Neutron temperature Beta Particles Gamma Rays Lithium Compounds Nuclear medicine business |
| Zdroj: | Radiation Protection Dosimetry. 161:116-122 |
| ISSN: | 1742-3406 0144-8420 |
| DOI: | 10.1093/rpd/nct352 |
| Popis: | In spite of considerable progress in neutron dosimetry, there is no dosemeter that is capable of measuring neutron doses independently of the neutron spectrum with good accuracy. Carbon-doped aluminium oxide (Al2O3:C) is a sensitive material for ionising radiation (beta-ray, X ray and electron) and has been used for applications in personal and medical dosimetry as an optically stimulated luminescence (OSL) dosemeter. Al2O3:C has a low sensitivity to neutron radiation; this prevents its application to neutron fields, representing a disadvantage of Al2O3:C-OSL when compared with LiF, which is used as a thermoluminescent detector. Recently an improvement for neutron dosimetry (Passmore and Kirr. Neutron response characterisation of an OSL neutron dosemeter. Radiat. Prot. Dosim. 2011; 144: 155-60) uses Al2O3:C coated with (Li2CO3)-Li-6 (OSLN), which gives the high-sensitive response as known for Al2O3:C with the advantage of being also sensitive to thermal neutrons. In this article, the authors compare small-size detectors (droplets) of Al2O3:C (OSL) and of Al2O3:C + (Li2CO3)-Li-6 (OSLN) and discuss the advantages and drawbacks of both materials, regarding size vs. response. |
| Databáze: | OpenAIRE |
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