Re: FLUKA: Production of Hydrogen (I was wrong again)

[Alberto Fasso' <Alberto.Fasso@cern.ch>]

Laurent,

I am sorry. I have given you the wrong instruction again.

I said:
> Check in the main MGDRAW entry (i.e. after a "CALL MGDRAW"), when the
> energy deposited in a step (DTRACK) is equal to kinetic energy of
> the particle: this of course only happens when the particle is stopped.

Wrong. The energy of the particle which is passed to MGDRAW is the energy
at the end of the step. For stopping protons, the kinetic energy is zero.
So, actually it is even simpler: no need to look at DTRACK, just check
that the kinetic energy is .LE. ANGLGB, i.e. FLUKA's "negligible amount",
= 5.0D-16 (of course exact comparison with zero cannot be done with 
a floating point number)

I apologize for this (second) mistake

Alberto

-- 
Alberto Fassò
CERN-EP/AIP, CH-1211 Geneve 23 (Switzerland)
Phone: (41 22) 767 2398    Fax: (41 22) 767 9480   Alberto.Fasso@cern.ch