한국정보통신학회논문지 (Journal of the Korea Institute of Information and Communication Engineering)

  • 제17권6호
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  • Pages.1425-1431
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  • 2013
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  • 2234-4772(pISSN)
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  • 2288-4165(eISSN)
한국정보통신학회 (The Korea Institute of Information and Commucation Engineering)
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광섬유 브래그 격자 센서의 고선량 방사선 효과

High Total Dose Radiation Effects on Fiber Bragg Grating Sensors

  • 투고 : 2013.04.09
  • 심사 : 2013.05.09
  • 발행 : 2013.06.30
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초록

게르마늄이 도핑된 실리카 코어에 페이즈 마스크를 이용하여 격자를 새긴 광섬유 브래그 격자 센서를 총 선량 23 kGy의 감마선을 조사하여 방사선에 의한 브래그 파장의 변화를 측정하였고, 방사선 조사 후에는 어닐링 특성을 평가하였다. 패키징된 FBG 센서의 경우, 방사선 조사동안 최대 91 pm의 브래그 파장변화가 나타났다. 또한 동일한 조건에서 패키징된 광섬유 브래그 격자 센서가 패키징 되지 않은 센서보다 방사선 민감도가 2배 이상 높게 나타났다.

We have measured the radiation-induced Bragg wavelength shift (BWS) of fiber Bragg grating (FBG) which was inscribed in Ge-doped core silica using a phase mask during irradiation up to a dose of 23 kGy and annealing effects after the gamma-exposure. For packaged FBG sensors, we observed the maximum radiation-induced BWS of about 91 pm during irradiation. Packaged FBG sensors also show higher radiation sensitivity above nearly a factor of two than non-packaged type sensor in the same condition.

키워드

참고문헌

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  8. K.Krebber, H.Henschel, U.Weinand, "Fiber Bragg Gratings as high dose radiation sensors?", Meas. Sci. Technol., vol. 17, pp. 1095-1102, 2006. https://doi.org/10.1088/0957-0233/17/5/S26

피인용 문헌

  1. 반사필터를 이용한 광선로 원격감시 시스템 vol.a39, pp.6, 2013, https://doi.org/10.7840/kics.2014.39a.6.357