REQUIREMENTS FOR PERFORMING A MEDICAL LINEAR ACCELERATOR

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  • 医療用直線加速器の操作, 保守についての検討
  • イリョウヨウ チョクセン カソクキ ノ ソウサ , ホシュ ニ ツイテ ノ ケントウ

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Abstract

6 Mev linear accelerator was installed in Aichi Cancer Center in June 1966. On the basis of its maintenance data and operated experience, the essential matters of performance in clinical service such as checking the disparity between the X-ray beam and light localizer, the beam symmetry, dependency of Injection focus magnet current to the energy, the stability of the out put during a long period, the errors of rotation speed of gantry and its mechanical preciseness, and preriodical inspections were discussed. Seven magnetrons were replaced last 2.5 years and the life of them were 520 hours in filament time average, longest one was 2600 hours. In these years there were only 2 days when it was not possible to treat patients.

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