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RISS 인기검색어
- 검색키워드
- 저자 : 로성기(Seung Gy Ro) (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
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임용규(Yong Kyu Lim),로성기(Seung Gy Ro) 대한전기학회 1965 전기의 세계 Vol.14 No.1
This experiment is based on "the feasible improvement studies for an eliminating device of the static electricity which applies the ionizing effect of beta radiation." In order to accomplish this object, the following problems were necessarily considered to investigate and to determine. The efficiency of the elimination of static electricity was determined by means of measuring the ion current between electrically charged plates with micro-ammeter. The effects of various factors, i.e., the distance between charged plate and radiation source, the activity of radiation source, the electric otential and the area of the charged plate, the shape of the source housing, the lining of backscattering material (Pb) on the source housing surface and blowing of ionized air, on the static electricity eliminating efficiency were studied. The beta radiation sources used in this experiment were S and Sr -Y . It was revealed that ion current increased with source activity, the electric potential and area of the plates, the lead (Pb) lining on the surface of the source housing and the velocity of the ionized air blowing. As one could expect the S was more effective to increase the ion current since it is known to be a higher specific ionization source than Sr -Y . The detailed result and performance of the eliminating device of the static electricity are described here.ibed here.
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Determination of the Spontaneous Fission Rate of ?? Using Solid State Track Recorder
Ro,Seung Gy,Koh,Byungryung,Yook,Chong Chul 대한방사선 방어학회 1985 방사선방어학회지 Vol.10 No.2
固體飛跡檢出器인 雲母를 238UO2 箔板에 約 5年間 密着시켜 두었다가 雲母만을 꺼내어 弗酸속에서 腐蝕시킨후, 光學顯微鏡으로 그 속에 생긴 核分裂破片의 飛跡을 觀測하여 233U의 自發核分裂率을 決定하였다. 이 實驗에서 얻은 238U의 自發核分裂率은 5.21±0.33 fissions/g-sec이었다. The spontaneous fission rate of 238U has been determined using a solid state track recorder that was a pre-etched mica. Counting the tracks revealed in mica made it possible to calculate the spontaneous fission rate. The mica remained in close contact with a 238UO2 foil for about five years. The resulting fission rate was 5.21±0.33 fissions/g-sec.
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