|Message: Energy loss of ions||Not Logged In (login)|
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Hi, I am simulating some tracking detectors with ions. I am kepping the velocity beta and the Lorentz factor gamma to be 0.94 and ~3 respectively, which corresponds to ions with about 1.9 A GeV. I am using /gun/ion command. If I do "/gun/ion 1 1 1" then it produced "proton". If I do "/gun/ion 2 4 2" then "alpha". The energy loss in the material of alpha is about 4 times larger than for proton and it is consistent to the expected z^2 dependence. However, the strange thing happens if I do "/gun/ion 3 6 3". The energy loss is much smaller than for proton and the energy loss doesn't change if I change to different ions and or I change the charge state. Could somebody help me to solve this problem? Thank you in advance. With my best regards, Take
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