Results of Measurements of Ion Energy Losses in the Range βγ ≈ 0.01-0.06 in Thin Absorbers

摘要

Results of measurements of ion energy losses in the insufficiently known range βγ = 0.01-0.06 in thin (～2 μg/cm~2) absorbers are presented. For this purpose, the energy losses and time-of-flight of ions have been measured simultaneously using low-pressure avalanche gas-filled detectors at P ≈ 1 Torr. These measurements have been complemented with ion residual energy measurements using a semiconductor detector. The energy of ions with βγ ≈ 0.01-0.03 has been reconstructed using the time-of-flight measurements. The ΔE(E) dependence for ~4He, Be, C, and O ions is presented.