@article{oai:repo.qst.go.jp:00046238, author = {Pinsky, L. and Empl, Anton and Gutierrez, Andrea and Jakubek, J and Kitamura, Hisashi and Miller, Jack and Leroy, Claude and Stoffle, Nicholas and Pospisil, Stanislav and Uchihori, Yukio and Yasuda, Nakahiro and Zeitlin, Cary and 北村 尚 and Stoffle Nicholas and 内堀 幸夫 and 安田 仲宏}, issue = {Suppl. 1}, journal = {Nuclear Instruments & Methods in Physics Research Section A}, month = {Jul}, note = {Exposures were made with Medipix2 TimePix-based Si detectors at the HIMAC facility in Japan to explore the potential for discrimination between tracks with differing charges and energies,but with very similar dE/dx values. Data were taken at 151 increments for a number of different beams including 600 and 800MeV/ASi,180MeV/A Ne and 100MeV/AO. Data were also obtained for 400MeV/A Si and 500 MeV/A Fe along with 290 and 180MeV/A N. The TimePix chips have been calibrated to achieve the maximum resolution. Estimates for the angularr esolution for these types of tracks are also possible from these data,which are essential in the development of a TimePix-based dosimetric device for use in a space radiation environment. One of the principal objectives of these data runs was to explore the resolution of TimePix-based Si detectors to discriminate between various ions with different energies and charges, but with similar dE/dx values in Si. Analysis of the images obtained shows the clear differences in the d-ray halos for particles with similar dE/dx values but for differing charges and energies. These measurements are part of an ongoing program to explore the range of capabilities ofthe TimePix-based detector with respect to dosimetry uses in space.}, pages = {S190--S193}, title = {Penetrating heavy ion charge and velocity discrimination with a Time Pix-based Si detector(for space radiation applications)}, volume = {633}, year = {2010} }