|Message: I tried to solve the same problem||Not Logged In (login)|
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I have exactly the same problem.
I am shooting heavy ions into my detector setup. While it was just one ray, there were no problems, everything went fine:
/gps/ion 88 218 1 0
/gps/energy 40. keV
/gps/position 0.625 0. 80. mm
/gps/direction 0. 0. 1.
(beam have to travel along +z axis)
When I added beam2d spreading, beam started to travel along -z axis and there was nothing I could do with it.
#/gps/pos/centre 0.625 0. 80. mm #/gps/pos/halfx 0.1 mm #/gps/pos/halfy 1. mm #/gps/ang/type beam2d #/gps/pos/sigma_x 0.011 rad #/gps/pos/sigma_y 0.046 rad
I tried to rotate beam and source shape, but it newer shoot particles along +z axis.
#/gps/pos/rot1 #/gps/pos/rot2 #/gps/ang/rot1 #/gps/ang/rot2(I tried all combinations, but without effect. And in some cases the beam disappeared...)
Can somebody help us how to point our beams along +z axis ? Or there is a bug ?
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