The results of our investigations of various parameters of the preparation procedure of thermoluminescent LiF:Cu,Mg,P are reported. The parameters under investigation are: (i) the relative concentration of the incorporated Mg, Cu and (PO4)-3 dopants, (ii) the influence of incorporation of oxygen; (iii) particle size distribution of the prepared powder samples; (iv) emission (v) high temperature '300°C, 10 min' pre-irradiation annealing. Incorporation of oxygen in the molten stage plays an essential role in the creation of thermoluminescence 0.5 mol.% oxygen leads to a TL material with approximately twenty times the intensity of TLF-100. We also find that the relative intensity of the undesirable high-temperature TL (270°C) shows no apparent correlation with oxygen or other dopant concentrations. The loss in TL sensitivity following 300°C, 10 min annealing shows similar behaviour.
|Number of pages||4|
|Journal||Radiation Protection Dosimetry|
|State||Published - 1 Jan 1990|
ASJC Scopus subject areas
- Radiological and Ultrasound Technology
- Radiology Nuclear Medicine and imaging
- Public Health, Environmental and Occupational Health