作者: M. R. Raju , H. I. Amols , S. G. Carpenter , R. A. Tobey , R. A. Walters
DOI: 10.2307/3574941
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摘要: The variation in radiosensitivity with position the cell cycle of cultured Chinese hamster cells (line CHO) for exposure to negative pions at peak has been compared x rays. were first synchronized by mitotic selection and resynchronized region late G/sub 1//early S phase treatment hydroxyurea (10/sup -3/ M). A fixed dose 540 rad was used expose different stages cycle. results indicate that (ratio maximum survival minimum survival) approximately tenfold rays fivefold comparable levles.