원문정보
초록
영어
This study concerning the surface dose of eye and thyroid from panoramagraphy used thermoluminescent dosimeter (TLD) and photoluminescent dosimeter (PLD) to take measurements at ten hospitals in the Gwangju metropolitan area. The recommendations from ICRP 60 and ICRP 73 on the allowance standard for eye are 15 mSv and for thyroid is 1 mSv. The left eye TLD and PLD values are 0.19 mSv and 0.24 mSv respectively. The right eye TLD and PLD values are 0.23 mSv and 0.25 mSv respectively. Thyroid TLD and PLD values are 0.08 mSv and 0.25 mSv respectively and did not exceed the allowance standards(p<0.001). Also comparisons are made between TLD and PLD for each organ and PLD has higher dose measurements than TLD. There are statistically significant differences in left eye measurements and thyroid measurements (p<0.01). There is no significant difference in measurements for the right eye (p>0.05). The TLD and PLD measured dose from panoramagraphy instruments on eyes and thyroid from each hospital did not exceed the recommended dose from ICRP 60 for surface dose measurements. However, due to the probability of influence, consideration should be made for all levels of dose.
목차
1. INTRODUCTION
2. STUDY OBJECT AND METHODS
2.1 Experiment Object
2.2 Experiment Tools and Materials
2.3 Statistical Treatment
3. RESULTS AND DISCUSSION
3.1 Panoramagraphy Equipment Name and ImagingConditions
3.2 Comparison of Left Eye Dose Value from TLD andPLD
3.3 Comparison of Dose Value from TLD and PLD forRight Eye
3.4 Comparison of Dose Value from TLD and PLD forThyroid
3.5 Comparison of Dose Values from TLD and PLD
4. CONCLUSION
REFERENCES