Water Radiolysis with Heavy Ions of Energies up to 28 GeV. 3. Measurement of G(MV • ) in Deaerated Methyl Viologen Solutions Containing Various Concentrations of Sodium Formate and

with incident energies varying from 0.6 to28 GeV) provided by the Heavy Ion Medical Accelerator inChiba (HIMAC) at the National Institute of Radiological Sci-ence (NIRS) in Japan. The sample solutions are irradiated atthe incident energy of the ions using 1-cm irradiation cells.Corresponding LET values cover the range from 2.2 to 185eV/nm.