• Title/Summary/Keyword: 환경방사선

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Domestic and International Graduate School Education in the Radiological Science : Status and Analysis (방사선학과 대학원 교육의 국내외 현황 및 분석)

  • Ko, Seong-Jin;Kang, Se-Sik;Kim, Jeong-Hoon;Choi, Seok-Yoon;Kim, Chang-Soo
    • The Journal of the Korea Contents Association
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    • v.10 no.7
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    • pp.305-316
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    • 2010
  • The impotance of Radiological science is greater due to development of Science and technology in Medical and Engineering. people who research specific area thought interdisciplinary approach, convergence is essential to pioneer a new field, receive attention was that interdisciplinary approach was needed. so investigating graduate system of radiological science, advanced country, designed to fit their country, could propose reference. the results show, in the university of offered with Master Degree operated program for Clinical experts(Sonography Specialist, Radiation Theraphy Specialist and Nuclear Medicine Specialist)and offered with Ph.D Degree operated program for Scientist and physicist (Nuclear Scientist, Medical Physicist). Note that by this, advanced graduate school program will enable us to become a reader of academia, play a leading role in the world.

Housing Analysis for Ocean Radiation Detection (해양 방사선 탐지를 위한 하우징 분석)

  • Park, Gang-teak;Kim, Jong-Yeol;Jung, Hyun-kyu;Lee, Nam-ho;Hwang, Young-gwan
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2017.10a
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    • pp.714-715
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    • 2017
  • Much of the interest in ocean radiation detection has been heightened as a lot of radioactivity has leaked to the ocean due to the accident at the Fukushima nuclear power plant in Japan. In the study, MCNP simulation for radiation detection in the ocean was performed. Unlike in the air, the marine environment must ensure the stability of the sensor from water depth, temperature, pressure, and salinity. In the marine environment, too much radiation is shielded. Therefore, it is an object to select a housing with a low radiation shielding ratio.

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Comparative Study on Human Risk by Ionizing Radiation and Pesticide as Biological Information about Environmental Disaster (환경재해에 관한 생물정보로서의 이온화 방사선과 살충제의 인체 위해성 비교 연구)

  • Kim, Jin-Kyu;Hyun, Soung-Hee
    • Journal of Radiation Protection and Research
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    • v.26 no.4
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    • pp.385-392
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    • 2001
  • Environmental risk factors such as ionizing radiations, heavy metals, and pesticides can cause environmental disasters when they exist in excess. The increases in use of ionizing radiation and agricultural pesticide are somewhat related to the possibility of the disaster. The risk of radiation and pesticide was evaluated by means of the single cell gel electrophoresis (SCGE) assay on the human blood lymphocytes. The lymphocytes were irradiated with $0{\sim}2.0Gy$ of $^{60}Co$ gamma ray. Another groups of lymphocytes were exposed to various concentrations of parathion. Significantly increased tail moment, which was a marker of DNA strand breaks in SCGE assay, showed a clear dose- or concentration-response relationship. Parathion of a recommended concentration for agricultural use ($1mg {\ell}^{-1}$ ) has a strong cytotoxic effect on lymphocytes, which is equivalent to damage induced by 0.1 Gy of ${\gamma}$-ray. Furthermore, $2mg{\ell}^{-1}$ of parathion can give rise to DNA damage equivalent to that induced by 0.25 Gy at which the radiation-induced damage can start to develop into clinical symptoms. The comparative results of this study can provide an experimental basis and biological information for the prevention of environmental disaster.

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Antioxidant Activities in the Lung of Murine Hermansky-Pudlak Syndrome (HPS) Model: Effect of Ionizing Radiation (Hermansky-Pudlak Syndrome (HPS) 생쥐 모델의 폐 항산화계 활성: 방사선의 영향)

  • Shin, Ho-Sang;Yang, Woo-Jung;Choi, Eun-Mi
    • Environmental Analysis Health and Toxicology
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    • v.22 no.1 s.56
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    • pp.9-17
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    • 2007
  • Hermansky-Pudlak Syndrome (HPS) 환자에서 조기에 발생되는 폐섬유화의 원인을 알아보고자, 생쥐 HPS 모델인 ep/ep,pe/pe 돌연변이종의 폐 항산화계의 환성과 방사선에 대한 반응을 측정하였다. HPS 폐에서는 대조군에 비해 glutathione이 더 산화되어 있었고, catalase, glutathione S-transferase(GST) 등의 항산화효소의 활성이 저하되어 있었으며, 10 Gy의 방사선을 조사하였을 때, glutathione 양이 감소하였고, 대조군 폐에서 보여지는 방사선에 의한 ${\gamma}$-glutamylcysteine ligase(GCL), glutathione peroxidase(GPx) 활성의 유의성 있는 증가가 관찰되지 않았다. 이 결과로부터 HPS 환자의 폐는 항산화계 활성이 저하되어 있을 뿐 아니라, 산화적 스트레스가 가해 졌을 때 적응 반응이 매우 취약하여 산화적 환경에 노출된 폐의 병증을 유발할 수 있음을 추측할 수 있다.

방사선 조사후 생물학적 처리에 의한 PVA의 분해

  • Park, Chi-Gyun;Yu, Dae-Hyeon;Lee, Jae-Gwang;Lee, Byeong-Jin;Lee, Myeon-Ju;An, Sang-Jun
    • Proceedings of the Korean Environmental Sciences Society Conference
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    • 2005.05a
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    • pp.373-374
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    • 2005
  • 1. 조사량의 증가는 PVA의 분해를 향상시켰다. 2. PVA의 초기 농도가 50 mg/L일 경우 1 kGy에서 99% 이상의 분해효과를 나타내었으며, 250 mgh일 경우 39.2% 의 분해 효과를 나타내어, PVA의 방사선에 의한 분해는 PVA초기농도에 영향을 받고 있음을 알 수 있다. 2. PVA 자체는 방사선에 의해서 효과적으로 분해 되었지만, TOC의 경우 초기농도50mg/L의 PVA를 제외하고는 아주 미비한 제거 효과를 보였다. 하지만 생분해도가 증가함으로써 방사선 처리후 생물학적 처리의 연계는 PVA를 완전히 산화시키기 위한 효과적인 방안이 될 수 있을 것임을 예측할 수 있었다.

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Paper Operration room nurses Experience in Using Radiation Suegery: Phenomenological Research (수술실 간호사의 방사선 노출 경험: 현상학적 연구)

  • Yun, Jae-Hyeon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.1
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    • pp.426-438
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    • 2020
  • This study aimed to identify the components of the nurses' exposure experiences and clarify the semantic structure of nurses by analyzing the participants' experiences of exposure to radiation. The participants in this study were nine nurses who worked for at least six months in the operating room of a City General Hospital. The data were collected using in-depth interviews and analyzed using the phenomenological method by Giorgi's (2004). As a result, six components were derived: "worrying about the disease by repeated radiation exposures", "exhausting physically and mentally," "trying to protect themselves against radiation exposure", "feeling of internal confusion and conflict", "demanding improvement of work environment", and "accepting and adapting to reality". In conclusion, nurses participating in radiation exposure surgery are concerned about the possibility of disease, experience physical and mental fatigue, and then consider changing their occupation. On the other hand, they try to accept and adapt to reality by considering the possibility of a job change or trying to protect themselves from the harsh environment. To develop a radiologically safe environment, systematic and effective resolutions must be secured at the organizational level.