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Feedback Re: G4Transportation is killing track - My field properies 

Keywords: electrons, magnetic field, transportation
Forum: Fields: Magnetic and Otherwise
Re: Question G4Transportation is killing track (Q#45!!!) (Ilya)
Re: Feedback Re: G4Transportation is killing track (Q#45!!!) (John Apostolakis)
Date: 03 Mar, 2005
From: Ilya <>

Thanks a lot for the answer!

Yes indeed I get not negligible number of events that are looping. I'll try to change a number of integration sub-steps. But that would be indeed nice if you could recommend the most appropriate integrator-stepper for my field.

I use a user defined field in a cilindrical volume of approx 300mm height (along Z-axis) and 35mm diameter. The central field value (the maximum one) is 15 T and on the top and bottom sides of the volume it drops down to 0.7 T (it's almost uniform in a radial direction). It's does not have thus very sharp regions of change - just slowly decreases along Z axis with increasing of the distance from the center of the volume. The electrons have energies up to 320 keV (beta-spectrum with the end-point energy of 320 keV).

Thanks a lot for help,

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