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RISS 인기검색어
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- 저자 : 이영일(Y. I. Rhee) (검색결과 2 건)
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放射線 및 藥品處理時의 諸要因이 벼의 M₁世代에 미치는 影響
C. Harn(韓昶烈),Y. I. Rhee(李榮日) 한국육종학회 1973 한국육종학회지 Vol.5 No.1
Present experiments were attempted to clarify the effects of modifying factors such as seed water content and oxygen in the X-rayed rice seed, and treatment of seed with ethylene imine under varying conditions, in terms of the influences on the biological injuries in M₁generation. 1. In radiosensitivities of varying seed water contents from 5.6 to 13.1%, the sensitivity was increased at 5.6% of water content, but decreased at 13.1%. 2. In X-ray treatment of seed the effect of oxygen was clearly observed when the seed water content was 5.6~9.7%, but this kind of effect was hardly recognizable in seed of higher water content. 3. In the treatment of seed with ethylene imine, the differences in growth injury due to concentrations was not clear when treated for two hours, but when the duration extends over four hours, the growth damage conspicuously increased with the increment of concentrations. 4. In the ethylene imine treatment no substantive injury was observed at 0~10℃, but at temperature over 10℃ injury incresed drastically.
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김지문(C. M. Kim),한창열(C. Harn),김영상(Y. S. Kim),이영일(Y. I. Rhee) 한국육종학회 1971 한국육종학회지 Vol.3 No.2
The facility of gamma greenhouse, the dose rate and the determination of off-limited area were dealt with in this paper. The cobalt-60 source with the activity of 284 Ci was set up in the greenhouse. The exposure doses were from 11 R/h to 75 R/h on the floor surface during the irradiation, while the scattered radiation was 1.2 mR/h at 1 meter distance from center decreasing to 0.05 mR/h at 6 meter when the source was in the container. The off-limited area and residence-prohibited area was 50 and 200 meters radius from the source, respectively. 자연 생육조건하의 식물체에 감마선을 완조사(緩照射)하여 돌연변이율을 높임으로서 효율적인 방사선 육종을 수행할 수 있도록 본 연구소내에 감마온실 1동을 70년에 완공 가동중에 있는바 동시설 및 선량계측 결과를 다음과 같이 요약한다. 1) 선원(線源)은Co-60’ 284 Ci (1970년 5월 현재)이고 이것을 130m²의 정팔각형 온실의 지하에 저장하게 되어있다. 조사(照射)는 원격조작실의 원격조작으로 선원을 지상 2m에 상승시켜서 한다. 2) 온실 상면(床面)의 선량 분포는 11~75 R/h이였다. 3) 선원 지하 저장시 온실내의 산란선량은 0.05~1.2 mR/h로 작업상 안전하다. 4) 원격조작실 내의 산란선량은 0.02mR/h, Pit내에는 0.4~25 mR/h이였다. 5) 출입제한 구역은 반경 50m, 거주지 제한 구역은 200m로 정하였다.
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