An evaluation of the range-gated-imaging technology under dense aerosol environments

• Autorzy: Cho J. W. , Choi Y. S. , Jeong K. M.

Identyfikatory

DOI

10.1016/j.opelre.2018.08.003

• Języki publikacji: EN

Abstrakty

EN

Range-gated-imaging system, which can be used to eliminate backscatter in strong scattering environments, is based on two high speed technologies. It uses high power, ultra-short pulse laser as the light source. And it opens the optical gate of an ICCD camera with a micro-channel-plate image intensifier in a very short time while the laser pulses reflected by the object is coming back to the ICCD camera. Using this range-gated-imaging technology, the effect of scattered light can be reduced and a clear image is obtained. In this paper, the test results of the range-gated-imaging system under dense aerosol environments, which simulates environments in the reactor containment building when the severe accident of the nuclear power plant occurred, are described. To evaluate the observation performance of the range-gated-imaging system under such dense fog environment, we made a test facility. Fog particles are sprayed into the test facility until fog concentration is reached to the postulated concentration level of the severe accident of the nuclear power plant. At such dense fog concentration conditions, we compared and evaluated the observation performances of the range-gated-imaging system and the CCD camera.

Słowa kluczowe

EN

aerosol; contrast; fog; Fukushima Daiichi nuclear power plant; ICCD camera; range-gated-imaging system; severe accident; visibility

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2018
• Tom: Vol. 26, No. 4
• Strony: 270--278
• Opis fizyczny: Bibliogr. 17 poz., il., wykr.

Twórcy

autor

Cho J. W.

• Nuclear Robot and Diagnosis Team, Korea Atomic Energy Research Institute, 111, Daedeok-daero 989 beon-gil, Yuseong-Gu, Daejeon, 305-353, Republic of Korea

autor

Choi Y. S.

• Nuclear Robot and Diagnosis Team, Korea Atomic Energy Research Institute, 111, Daedeok-daero 989 beon-gil, Yuseong-Gu, Daejeon, 305-353, Republic of Korea

autor

Jeong K. M.

• Nuclear Robot and Diagnosis Team, Korea Atomic Energy Research Institute, 111, Daedeok-daero 989 beon-gil, Yuseong-Gu, Daejeon, 305-353, Republic of Korea

Bibliografia

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Uwagi

1. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the korean goverment (MSIP) (NRF-2012M2A8A1029350).

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).