Site Specific Microbeam Irradiation: Defining a Bystander Effect. Final Technical Report

[摘要] There is evidence that low-energy x-rays as used in mammography have an increased biological effectiveness relative to higher-energy photons. However, the RBE values are not large, probably less than 2. Thus it is unlikely that the radiation risk alone could prove to be a ''show stopper'' regarding screening mammography because, for older women, the benefit is likely to considerably outweigh the radiation risk. Nevertheless, the RBE for low-energy x-rays might reasonably be taken into account when assessing the recommended age to commence such annual screening.

[发布日期] 2003-10-22 [发布机构] Columbia University (United States)

[关键词] Radiations;72 Physics Of Elementary Particles And Fields;Irradiation;Photons