[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 1, Issue 2 (9-2003) ::
Int J Radiat Res 2003, 1(2): 113-117 Back to browse issues page
Dental tissue as a TLD dosimeter
M. Mirzaii , H. Afarideh, S.M. Haji-Saeid, G.R. Aslani, M.R. Ensaf
, mmirzaii@aeoi.org.ir
Abstract:   (18477 Views)

Background: Thermoluminescence dosimetry is one of the dosimetry procedures used widely as routine and personal dosimeters. In order to extend this kind of dosimeters, dental tissue has been examined and was found promising as a TLD dosimeter.

Materials and Methods : In this study, 70 health teeth were collected. The only criterion, which was considered for selection of the teeth, was the healthiness of them regardless of age and gender of the donors. All collected samples were washed and cleaned and milled uniformly. The final powder had a uniform grain size between 100 – 300 micrometer. The sample was divided into four groups. Group A and B were used for measurement of density and investigation of variation of thermoluminescent characteristics with temperature respectively. Groups C and D were used for investigation of variation of thermoluminescent intensity with dose and fading of this intensity with time . In all cases the results obtained with dental tissue were compared to a standard LiF, TLD dosimeter.

Results : It was found that, average density of the dental tissue was 1.570 g/cm3, which is comparable to density of LiF, which is 1.612 g/cm3. It was also concluded that the range of 0-300 oC, dental tissue has a simple curve with two specific peaks at 140 and 250 oC respectively.

The experiment also showed that, the variation of relative intensity versus dose is linear in the range of 0.04 – 0.1Gy . The fading rate of dental tissue is higher than LiF but still in the acceptable range (14% per month in compare to 5.2% per month)

Conclusion : Dental tissue as a natural dosimeter is comparable with TLD and can be used in accidental events with a good approximation . Iran . J. Radiat. Res. 2003 1(2): 113 – 117.

Keywords: TLD dosimetry, dental dosimetry, personal dosimeters, accidental dosimetry
Full-Text [PDF 152 kb]   (2582 Downloads)    
Type of Study: Original Research | Subject: Radiation Biology
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA


XML     Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

M. Mirzaii, H. Afarideh, S.M. Haji-Saeid, G.R. Aslani, M.R. Ensaf. Dental tissue as a TLD dosimeter. Int J Radiat Res. 2003; 1 (2) :113-117
URL: http://ijrr.com/article-1-16-en.html


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 1, Issue 2 (9-2003) Back to browse issues page
International Journal of Radiation Research
Persian site map - English site map - Created in 0.04 seconds with 32 queries by YEKTAWEB 4343