Response of human lymphocytes to proton radiation of 60Â MeV compared to 250Â kV X-rays by the cytokinesis-block micronucleus assay

Our studies, although preliminary, further contribute to the understanding of the mechanistic differences in the response of HPBL in terms of cellular proliferation and cytogenetic damage induced by protons and X-rays as well as intra-cellular distribution of energy and thus radiobiological effectiveness.