비화공식 예광탄 응용을 위한 Dy+Ce 및 Dy+Na 이중 도핑된 MgB4O7의 높은 열발광 특성
(주)코리아스칼라
- 최초 등록일
- 2023.04.03
- 최종 저작일
- 2023.01
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서지정보
ㆍ발행기관 : 한국재료학회
ㆍ수록지정보 : 한국재료학회지 / 33권 / 1호
ㆍ저자명 : 박진우, 김나경, 최지운, 최영승, 류상혁, 양성진, 정덕형, 신병하
목차
Abstract
1. 서 론
2. 실험방법
3. 결과 및 고찰
3.1. Dy+Ce 이중 도핑된 MgB4O7의 열발광 특성 분석
3.2. Dy+Na 이중 도핑된 MgB4O7의 열발광 특성 분석
4. 결 론
Acknowledgement
References
영어 초록
‘Tracers’ are bullets that emit light at the backside so that the shooter can see the trajectory of their flight. These light-emitting bullets allow snipers to hit targets faster and more accurately. Conventional tracers are all combustion type which use the heat generated upon ignition. However, the conventional tracer has a fire risk at the impact site due to the residual flame and has a by-product that can contaminate the inside of the gun and lead to firearm failure. To resolve these problems, it is necessary to develop non-combustion-type tracers that can convert heat to luminance, so-called ‘thermoluminescence (TL)’. Here, we highly improve the thermoluminescence properties of MgB4O7 through co-doping of Dy3++Ce3+ and Dy3++Na+. The presence of doping materials (Dy3+, Ce3+, Na+) was confirmed by XPS (X-ray photoelectron spectroscopy). The as-synthesized co-doped MgB4O7 was irradiated with a specific radiation dose and heated to 500 °C under dark conditions. Different thermoluminescence characteristics were exhibited depending on the type or amounts of doping elements, and the highest luminance of 370 cd/m2 was obtained when Dy 10 % and Na 5 % were co-doped.
참고 자료
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