Spaceflight radiation carcinogenesis gamma rays that produce the same biological effect are called relative biological effectiveness (RBE) factors. The types of tumors in humans who are exposed to space radiation will be different from those who are exposed to low-LET radiation. This is evidenced by a study that observed mice with neutrons and have RBEs that vary with the tissue type and strain. The various approaches to setting acceptable levels of radiation risk are summarized below: NCRP Report No. 153 provides a more recent review of cancer and other radiation risks. This report also identifies and describes the information needed to make radiation
All About Radiation who has made a special study of radiation and its effects. He said that Hubbard's knowledge of radiation, as displayed by his writings in "All About Radiation", was the 'sort of knowledge that perhaps a boy who has read Intermediate Physics might, with a lot of misapprehensions and lack of understanding, demonstrate'... From this witness's evidence it is apparent that Hubbard is completely incompetent to deal with the subject of radiation and that his knowledge of nuclear physics is distorted, inaccurate, mistaken and negligible. No evidence was called which disputed in any way these conclusions." All About Radiation All About