遠隔操作電離槽型サーベィメーターの考察 : 放射線管理について

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書誌事項

タイトル別名
  • STUDY ON A REMOTE CONTROL SURVEY METER OF IONIZATION CHAMBER-TYPE : Study on the control of radial rays
  • エンカク ソウサ デンリソウガタ サーベィメーター ノ コウサツ ホウシャセン カンリ ニ ツイテ

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説明

The authors have the workers wear two pocket chambers and one film badge to control the radiological works. In order to decrease the absorbed dose of the people meauring the amount of radial rays, they devised a survey meter of ionization chamber-type. The chamber and meter of it are connected with cords and can be separated each other. The joint rod of Alminum can be used to remote control the survey meter. By using the joint rod and the case of the meter, it is possible to set the camber at the proper hight above the follr to measure the amount of X-rays. The maximum sensitivity of the usual servey meter of ionization chamber-type was 20mr/h, but according to the revision of National Medical Treatment Law, the more sharp sensitivity is required. So, the capacity of the chamber was doubled and the sensitivity of meter was improved to 2OμA (100μA as usual) and the maximum sensitivity reached to 2mr/h at full scale. Owing to separating of the chamber, the effect of the direction was reduced.

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