From: Giuseppe Battistoni (Giuseppe.Battistoni@mi.infn.it)
Date: Fri Nov 30 2007 - 14:46:02 CET
Hello Hamide,
Generally speaking you can tailor energy deposition scoring inside FLUKA
(tipically the usrbin output) by using the comscw.f user routine linked
to make a fluka executable of your own.
Please refer to the manual about learning the use of user routines in FLUKA.
This routine is activated through the USERWEIG with WHAT(6)>0 (see the
manual).
In practice such a routine is a weight which intercepts and redefines
each energy deposition.
There inside you can select your usrbin by means of ISCRNG =1 and the
proper value of JSCRNG.
Beyond the manual look also the lectures at the Houston Fluka course in 2007
(http://www.fluka.org/course/Houston-07/Lectures/ and there see
UserRoutines.pdf)
In energy deposition scorings, the current particle is IJ=208 (the
generalized particle fluka number associated to energy deposition) and
you can recognize primary by the particle generation index LLO
(primaries have LLO=1)
To limit you scoring to selected particles you have to put (inside
comscw.f) the logical variable
LSCZER to .TRUE. for all the particles which DO NOT FULFILL your
selection.
The real identification number of secondary particles can be selected
inside comscw.f by including in
it the (TRACKR) common and check the variable j0trck (see the comments
inside $FLUPRO/flukapro/(TRACKR)
In case of heavy ions j0track should me -2, and the nature of particle
can be desumed by inlcuding
common (PAPROP) and checking Z and A which are respectively given by
ICHRGE(-2) and IBARCH(-2).
Of course the transport of heavy ions has to be activated (see command
EVENTYPE)
but it should be already activated in the default cases.
Notice that for a few light ions from deutons to he4 there is already a
code available in for j0trck (from -3 to -6)
WARNING: about dose equivalent: be careful that it is up to you to give
a quality factor (assigning them to
the comscw function value). At present there is no general utility for this.
Giuseppe Battistoni
amide jalali wrote:
> Hello,
>
> I would be appreciated if you guide me how I can get energy deposition
> by surviving primaries, secondaries and each secondary separately.
> An other question : Is FLUKA capable to calculate dose equivalent when
> the source is heavy ions with distribution of energy?
>
> Thanks in advance.
> Hamide
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