Carcinogenic risks of internal exposures to alpha-emitters (except radon) are relatively poorly understood. Since exposure may occur in environmental, malicious, accidental and occupational settings, understanding consequent risks is a priority for radiation protection. An occupational study in nuclear workers addresses this need as detailed histor…
If mankind is to explore the solar system beyond the confines of our Earth and Moon the problem of radiation protection must be addressed. Galactic cosmic rays and highly variable energetic solar particles are an ever-present hazard in interplanetary space. Electric and/or magnetic fields have been suggested as deflection shields in the past, but t…
