Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1884589 | Radiation Measurements | 2007 | 5 Pages |
Abstract
This paper presents results obtained for a new LiF:Mg,Cu,P (HMCP) preparation with modified Mg and Cu concentrations. The shape of the HMCP glow curve shows minimal differences for annealing in the range from 523 to 543Â K for 10Â min. The thermoluminescence (TL) readout value remained stable when annealed in the range from 513 to 543Â K for 10Â min. The new formula allows heating of the material to higher temperatures than that originally employed for the well-known GR-200A dosemeter, practically without losses in sensitivity. The TL sensitivity is approximately half of that for the GR-200A, and still 29-fold greater than that for the TLD-100 dosemeter, and the residual signal is approximately five-fold lower than for the GR-200A. These results indicate that the new TL material shows enhanced thermal stability and a lower residual TL signal at a small TL sensitivity cost. The heat treatment temperatures are related to concentrations of Mg and Cu in LiF:Mg,Cu,P.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
K. Tang, H. Cui, H. Zhu, Q. Fan,