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Ishikawa, S.; Geissel, H.; Purushothaman, S.; Weick, H.; Haettner, E.; Iwasa, N.; Scheidenberger, C.; Sørensen, A.H.; Tanaka, Y.K.; Abel, T.; Äystö, J.; Bagchi, S.; Dickel, T.; Drozd, V.; Franczak, B.; Greiner, F.; Harakeh, M.N.; Kalantar-Nayestanaki, N.; Kindler, B.; Knöbel, R.; Kostyleva, D.; Kraft-Bermuth, S.; Kuzminchuk, N.; Lamour, E.; Lommel, B.; Mukha, I.; Patyk, Z.; Pietri, S.; Schaumann, G.; Zhao, J.
Physics letters. B, 11/2023, Letnik: 846Journal Article
We have measured for the first time simultaneously both the mean charge states and stopping powers of (35-280) MeV/u 208Pb ions in gases and solids with an accuracy of 1%. The existence at lower energies and disappearance at higher of density effects in the charge-state distribution and the corresponding stopping power are directly confirmed and comparisons with widely used theories and simulations for heavy ions demonstrate strong deviations of up to 27%. However, an unprecedented prediction power of better than 3% has been achieved for the energy loss when the measured mean charge-states are implemented in the Lindhard-Sørensen theory. Our present benchmark data contribute to an improved understanding of the basic atomic collision processes and to numerous applications in nuclear physics. Extending the GANIL data 1 to higher accuracy and energies, we can now answer at which velocities the Bohr-Lindhard density effect in stopping will vanish.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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