Thermoluminescence dosimetry of rare earth doped calcium aluminate phosphors

Bulletin of materials science

T S Elias³  V Padmanabhan¹  J James³  C M K Nair²  K Madhukumar²  K C Ajith Prasad²  K Rajendra Babu² 

[1] Regional Cancer Centre, Thiruvananthapuram 695 011, India$$Regional Cancer Centre, Thiruvananthapuram 695 011, IndiaRegional Cancer Centre, Thiruvananthapuram 695 011, India$$;Department of Physics, Mahatma Gandhi College, Thiruvananthapuram 695 004, India$$Department of Physics, Mahatma Gandhi College, Thiruvananthapuram 695 004, IndiaDepartment of Physics, Mahatma Gandhi College, Thiruvananthapuram 695 004, India$$;Regional Research Laboratory, Thiruvananthapuram 695 019, India$$Regional Research Laboratory, Thiruvananthapuram 695 019, IndiaRegional Research Laboratory, Thiruvananthapuram 695 019, India$$

关键词: Photoluminescence;    thermoluminescence;    radiation dosimetry.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

The thermoluminescence (TL) properties of calcium aluminate (CaAl₂O₄) doped with different rare earth ions have been studied and their suitability for radiation dosimetry applications is discussed. It is observed that monocalcium aluminate doped with cerium is a good dosimeter having linear response up to about 4 kGy of radiation doses. Dopant concentration of 0.25 mol% cerium gives maximum TL emission. The well-defined single peak observed at 295°C can be advantageously used for high temperature dosimetry applications.

【 授权许可】

Unknown