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SCBF 장치에서 이온전류에 대한 포텐셜 우물 구조의 영향
주흥진,박정호,고광철,Ju, Heung-Jin,Park, Jeong-Ho,Ko, Kwang-Cheol 한국전기전자재료학회 2007 전기전자재료학회논문지 Vol.20 No.5
SCBF(Spherically Convergent Beam Fusion) device has been studied as a neutron source. Neutron production rate is a most important factor for the application of SCBF device and is proportional to the square of the ion current[1]. It is regarded generally that some correlations between the potential well structure and the ion current exist. In this paper, the ion current and potential distribution were calculated in a variety of grid cathode geometries using FEM-FCT method. Single potential well structure was certified inside the grid cathode. The deeper the potential well became, the higher the ion current due to the high electric field near the grid cathode became.
유전체 장벽 방전을 이용한 오존 발생기의 전원장치 최적 설계 및 비교
김봉석,신영철,고광철,Kim, Bong-Seong,Shin, Young-Chul,Ko, Kwang-Cheol 한국전기전자재료학회 2011 전기전자재료학회논문지 Vol.24 No.1
Dielectric Barrier Discharge (DBD) reactor with sinsodual AC type of power supply is very widely adopted for its compact size and effective discharging mechanism to generate high density of ozone radicals. However, at the aspect of design on power supply, its optimal switching conditions and topology is achieved by empirical test. Therefore, throughout this paper, it is proposed a design method of DBD power supply to guarantee a maximum ozone yield rate in accordance with DBD reactor modification and impedance variation when rapid gas discharging in the DBD reactor is proceeded.
중성자 발생용 구형 집속빔 핵융합 장치의 방전현상 연구
박정호,주흥진,고광철,Park, Jeong-Ho,Ju, Heung-Jin,Ko, Kwang-Cheol 한국전기전자재료학회 2007 전기전자재료학회논문지 Vol.20 No.5
Application field of neutron beam is very broad including industry, medicine and science. But the research and development and use of neutron beam is restricted within in narrow limits in this country, because neutron beam facility is insufficient - a big research facility of nuclear reactor(HANARO) and some small industrial facilities which use radioisotope neutron source are available. This paper compare and investigate the results of experiment and numerical analysis of the discharge in the spherically convergent beam fusion device which were expected as a portable neutron source. The spherically convergent beam fusion device will offer stability in neutron production, possibility of movement for convenience, low construction cost and higher neutron flux than radioisotope neutron source. The star mode discharge which efficiently generate neutron, were observed at both results.