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- Title
Further studies on the role of dopants in LiF:Mg,Cu,Si thermoluminescent material.
- Authors
Tang, K.; Fan, H.; Cui, H.; Zhu, H.; Liu, Z.
- Abstract
The 3-D thermoluminescence spectra and glow curves of LiF:Mg,Cu,Si, LiF:Mg,Cu, LiF:Mg,Si and LiF:Cu,Si with low concentrations of Mg and Cu were measured and were compared with those with high concentrations to investigate further the role of dopants in LiF:Mg,Cu,Si material. The shape of glow curves of the four samples is similar; however, LiF:Cu,Si sample had no Mg dopant. It is concluded that the TL emission to be from self-trapped excitons in LiF, and this emission could be enhanced and altered by Mg, Cu and Si dopants in LiF:Mg,Cu,Si; all three dopants are necessary to obtain the bright TL emission and may be involved in the luminescence process; Mg seems to be the most essential dopant and Cu is involved in the trapping although the role of Mg dominates; both Cu and Si play a role in the main emission process and Cu also plays a role in reducing the emission around 610 nm.
- Subjects
DOPING agents (Chemistry); THERMOLUMINESCENCE dosimetry; RADIATION dosimetry; POLARIZED beams (Nuclear physics); POLARIZING microscopes
- Publication
Radiation Protection Dosimetry, 2015, Vol 163, Issue 3, p288
- ISSN
0144-8420
- Publication type
Article
- DOI
10.1093/rpd/ncu198