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Question Electrons tracking in high magnetic fields with LowEn. el/m physics 

Keywords: electron, magnetic field, low-energy el/m physics.
Forum: Fields: Magnetic and Otherwise
Date: 16 May, 2006
From: Ilya <ilya.kraev@fys.kuleuven.ac.be>

Hi everybody,

I am busy with a simulation of 60Co beta-decay (energies up to 320 keV) in a set-up with magnetic field B = 13 T. In my program I used low-energy electromagnetic processes for this purpose. The final spectrum in a detector that I obtained in sumulations has events that are above end-point energy of 60Co (above 320 keV) and number of these events can not be explained by physics (the detector is too thin to stop two gamma-quanta emitted together with a beta-particle and also the previous simulations in a test set-up did not show such a behaviour).

To check whether it is not related to some bugs in my program I switched to the Standard el/m processes. The spectrum that I see is OK! Then I tried to simulate monoenergetic electron (300 keV). With LOW ENERGY el/m processes I again get events with energy above initaial energy of the particle while for the STANDARD el/m physics the spectrum is fine.

In previous simulations in absence of the magnetic field I do not see such effect.

Did somebody encounter such a problem and is there a bug in LOW ENERGY el/m physics when it has to deal with magnetic fields?

Thanks a lot for any help, Ilya.

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1 None: Re: Electrons tracking in high magnetic fields with LowEn. el/m physics   (michel maire - 17 May, 2006)
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