Earticle

초록

영어

Background: This study aims to develop an integrated optical system that can simultaneously or selectively measure the signals obtained from radioluminescence (RL), thermoluminescence (TL), and optically stimulated luminescence (OSL), which are luminescence phenomena of materials stimulated by radioactivity, heat, and light, respectively. The luminescence mechanism of various materials could be investigated using the glow curves of the luminescence materials. Materials and Methods: RL/TL/OSL integrated measuring system was equipped with a X-ray tube (50 kV, 200 μA) as an ionizing radiation source to irradiate the sample. The sample substrate was used as a heating source and was also designed to optically stimulate the sample material using various light sources, such as high luminous blue light emitting diode (LED) or laser. The system measured the luminescence intensity versus the amount of irradiation/stimulation on the sample for the purpose of measuring RL, TL and OSL sequentially or by selectively combining them. Optical filters were combined to minimize the interference of the stimulation light in the OSL signal. A long-pass filter (420 nm) was used for 470 nm LED, an ultraviolet-pass filter (260-390 nm) was used for detecting the luminescence of the sample by PM tube. Results and Discussion: The reliability of the system was evaluated using the RL/OSL characteristics of Al2O3:C and the RL/TL characteristics of LiF:Mg,Cu,Si, which were used as dosimetry materials. The RL/OSL characteristics of Al2O3:C showed relatively linear dose-response characteristics. The glow curve of LiF:Mg,Cu,Si also showed typical RL/OSL characteristics. Conclusion: The reliability of the proposed system was verified by sequentially measuring the RL characteristics of radiation as well as the TL and OSL characteristics by concurrent thermal and optical stimulations. In this study, we developed an integrated measurement system that measures the glow curves of RL/TL/OSL using universal USB-DAQs and the control program.

목차

ABSTRACT
Introduction
Materials and Methods
1. Optical Stimulation Control and Optical Measurement Part
2. Thermal Stimulation and Sample Substrate
3. X-ray Irradiation Device
4. Construction of the Device
Results and Discussion
1. Output Characteristics of X-ray
2. RL-OSL Measurement Characteristics
3. RL-TL Measurement Characteristics
Conclusion
Acknowledgements
References

키워드

저자

• Chang-Young Park [ Department of Physics and Research Institute of Natural Science, Gyeongsnag National University, Jinju, Korea ]
• Young-Kook Park [ Department of Physics and Research Institute of Natural Science, Gyeongsnag National University, Jinju, Korea ]
• Ki-Soo Chung [ Department of Physics and Research Institute of Natural Science, Gyeongsnag National University, Jinju, Korea ] Corresponding Author
• Jong-Duk Lee [ College of Interdisciplinary and Creative Studies, Konyang University, Nonsan, Korea ]
• Jungil Lee [ Korea Atomic Energy Research Institute, Daejeon, Korea ]
• Jang-Lyul Kim [ Korea Atomic Energy Research Institute, Daejeon, Korea ]

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