@article{oai:repo.qst.go.jp:00046020,
 author = {Rodzi, B Ali Mohd and Zhumadilov, K. and Hoshi, Masaharu and Ivannikov, A. and Fukumura, Akifumi and et.al and Ｍｏｈｄ Ｒｏｄｚｉ Ｂ Ａｌｉ and 福村 明史},
 issue = {3},
 journal = {Radiation and Environmental Biophysics},
 month = {Mar},
 note = {Abstract Background radiation dose is used in dosimetry 
for estimating occupational doses of radiation workers or 
determining radiation dose of an individual following 
accidental exposure. In the present study, the absorbed 
dose and the background radiation level are determined 
using the electron spin resonance (ESR) method on tooth 
samples. The effect of using different tooth surfaces and 
teeth exposed with single medical X-rays on the absorbed 
dose are also evaluated. A total of 48 molars of position 
6.8 were collected from 13 district hospitals in Peninsular 
Malaysia. Thirty-six teeth had not been exposed to any 
excessive radiation, and 12 teeth had been directly exposed 
to a single X-ray dose during medical treatment prior to 
extraction. There was no significant effect of tooth surfaces 
and exposure with single X-rays on the measured absorbed 
dose of an individual. The mean measured absorbed dose 
of the population is 34 ± 6.2 mGy, with an average tooth 
enamel age of 39 years. From the slope of a regression line, 
the estimated annual background dose for Peninsular 
Malaysia is 0.6 ± 0.3 mGy y -1. This value is slightly 
lower than the yearly background dose for Malaysia, and},
 pages = {451--458},
 title = {Estimation of background radiation doses for the Peninsular Malaysia's population by ESR dosimetry of tooth enamel},
 volume = {50},
 year = {2011}
}