Earticle

초록

영어

Background: The retrospective dosimetry using RTL quartz can be improved by information for an optical sensitivity of sample connected with the equivalent dose determination. Materials and Methods: The quartz sample from a volcanic rock of Japan was used. After correcting the thermal quenching effect, RTL peaks of quartz were separated by the CGCD method cooperated with the general order kinetics. The number of overlapped glow peaks were ascertained by the Tm-Tstop method. The optical sensitivity was examined by comparing the change of intensity on RTL glow peaks measured after exposure to light from a solar simulator with various illumination times. Results and Discussion: Seven glow peaks appeared to be overlapped on the RTL glow curve. The general order kinetics model was appropriate to separate glow peaks. After exposure to light from a solar simulator from a few minutes to 416 hr, the signals for peaks P4 and P5 decayed following the form of f(t) = a1e-λ1t, while the signals for peaks P6 and P7 decayed by the form of f(t) = a1e-λ1t+a2e-λ2t+a3e-λ3t. Conclusion: For dosimetric peaks, the times taken to reduce the RTL signal to half of its initial value were 70 sec for the peak P4, 54 s for the peak P5, 9,840 sec for the peak P6 and 26,580 sec for the peak P7, respectively. We conclude that the optical sensitivity of peaks P4, and P5 gives much higher than that of peaks P6 and P7.

목차

ABSTRACT
 Introduction
 Materials and Methods
 Results and Discussion
  1. Emission property of RTL quartz sample
  2. Thermal quenching
  3. Peak separation
  4. Optical sensitivity
 Conclusion
 Acknowledgements
 References

키워드

저자

• Myung-Jin Kim [ Archaeological Science Institute, RADPION Inc., Daejeon, Korea ]
• Ki-Bum Kim [ Institute of Liberal Education, Kangwon National University, Chuncheon, Korea ]
• Duk-Geun Hong [ Department of Physics, Kangwon National University, Chuncheon, Korea ] Corresponding author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  방사선방어학회지 [Journal of Radiation Protection and Research]

• 간기

  계간

• pISSN

  2508-1888

• 수록기간

  1976~2026

• 등재여부

  KCI 등재,SCOPUS

• 십진분류

  KDC 559 DDC 629