Differences in fundamental reaction mechanisms between high and low-LET in recent advancements and applications of ionizing radiation
نویسندگان
چکیده
Differences between the mechanisms of energy deposition by high-LET radiation, consisting of neutrons, protons, alpha particles, and heavy ions on one hand, and low-LET radiation, exemplified by electron beam and gamma radiation on the other, are utilized in the selection of types of radiation used for specific applications. Thus, high-LET radiation is used for modification of carbon nanotubes, for ion track grafting, and the synthesis of membranes and nanowires, as well as for characterization of materials by means of neutron scattering. Recent applications of low-LET irradiation include minimization of radiolytic degradation upon sterilization of ultrahigh molecular weight polyethylene (UHMWPE), radiolytic synthesis of nanogels for drug delivery systems, grafting of polymers in the synthesis of adsorbrnts for uranium from seawater, and reductive remediation of PCBs.
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