PROBLEMS FOR SAFETY AND RELIABILITY IN MAINTENANCE OF MEDICAL RADIATION UNITS : 2. FROM STANDPOINT OF ELECTRICITY

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  • II.放射線機器管理における安全性の問題点 : 主として電気的安全性について(第33回総会)
  • 主として電気的安全性について
  • シュ ト シテ デンキテキ アンゼンセイ ニ ツイテ

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Abstract

Development of radiation diagnosistic units have brought complicated risk, and increased. On the othenside, electro-biological substancese is also developed. For example, thresholds of electric shock is known in several respects. Threshold of macro-shock is about 20mA but microshock is 10μA. In case of angiocardio graphic examination, countermeasure is needed for micro-shock. Accordingly, Equipotential patient Reference system must be appleid to each units by electric lead cable. It is kept electropotential less than 10mV. Generally, regular examination must be needed.

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