Problem 507

Summary:	Firing an atom
Product:	Geant4	Reporter:	Fan.Lei
Component:	processes/electromagnetic	Assignee:	Michel.Maire
Status:	RESOLVED WONTFIX
Severity:	normal	CC:	Hans-Peter.Wellisch, petteri.nieminen, Vladimir.Ivantchenko
Priority:	P2
Version:	other
Hardware:	Other
OS:	Other

Description Fan.Lei 2003-07-10 05:20:22 CEST

It seems the ionization process is not applied to neutral ions (atoms) even
when they are travelling in dense crystal. Of course ionization is not
applicable to neutral particles but in this case the atoms will be ionised in
no time and they should be treated just as ions. The problem can be
demonstrated with example/novice/N05

/tracking/verbose 1
/gun/particle/ion
/gun/energy 10 MeV
/gun/ion 12 24
/run/beamOn
/gun/ion 12 24 1 1
/run/beamOn

Comment 1 Michel.Maire 2003-07-10 09:11:59 CEST

It is not a bug, but an interesting development for the low energy and space
applications working group.

Comment 2 Michel.Maire 2003-07-10 09:13:59 CEST

It is not a bug, but an interesting development for the low energy and space
applications working group.

Comment 3 Fan.Lei 2003-07-10 09:31:59 CEST

It may not be a bug in ionization process itself. The fact is fast atmos can
not be charge neutral in solid for long. It is unreal to see keV atmos
penetrating meters of concret for example.

I have also seen recoils from nuclear interactions managing to leave large
geometry setup due to, I assume, the charge state of the recoils were set to
zero. Something again cannot be right!