From: Ercan Pilicer (ercanpilicer@gmail.com)
Date: Thu Mar 01 2007 - 16:49:06 CET
dear users & chuck & vasilis,
thanx for your comments.
by the way i have done the same thing with trim and calculated the
close results as chuck mentioned.
another thing is that do i have to use mat-prop options for air ?
evenif i use it i can see only slight differenceses in the
calculations.
and the beam energy i used is 20MeV/n, and i use it with dpmjet. right?
best regards.
ciao
ercan
On 3/1/07, Vasilis Vlachoudis <Vasilis.Vlachoudis@cern.ch> wrote:
> Dear Ecran
>
> the BME module which is supposed to do the transport of heavy ions down
> to 10 MeV/n is not in the official distribution. Probably will be
> available in the next release. Therefore with 20 MeV/n you are only
> doing dE/dx and for air 5cm, the 90% that escapes the system is quite
> reasonable, the expected stopping range in air should be of the order of
> ~30cm.
>
> Regards
> Vasilis
>
> -----Original Message-----
> From: owner-fluka-discuss@fisica.unimi.it
> [mailto:owner-fluka-discuss@fisica.unimi.it] On Behalf Of Ercan Pilicer
> Sent: Wednesday, 28 February 2007 21:38
> To: fluka-discuss@fluka.org
> Subject: energy loss in air
>
> dear users,
>
> i would like to know that the energy loss of kr-84 heavy ions with
> 20MeV/n in 5cm air thickness could be around 1GeV? in *.out file i
> have noticed that;
>
> 1.6783E+00 (100.%) GeV available per beam particle divided into
> Prompt radiation Radioactive decays
> 1.5394E-01 ( 9.2%) 0.0000E+00 ( 0.0%) GeV hadron and muon dE/dx
> 0.0000E+00 ( 0.0%) 0.0000E+00 ( 0.0%) GeV electro-magnetic showers
> 0.0000E+00 ( 0.0%) 0.0000E+00 ( 0.0%) GeV nuclear recoils and
> heavy fragments
> 0.0000E+00 ( 0.0%) 0.0000E+00 ( 0.0%) GeV particles below
> threshold
> 0.0000E+00 ( 0.0%) 0.0000E+00 ( 0.0%) GeV residual excitation
> energy
> 0.0000E+00 ( 0.0%) 0.0000E+00 ( 0.0%) GeV low energy neutrons
> 1.5244E+00 (90.8%) 0.0000E+00 ( 0.0%) GeV particles escaping the
> system
> 0.0000E+00 ( 0.0%) 0.0000E+00 ( 0.0%) GeV particles discarded
> 0.0000E+00 ( 0.0%) 0.0000E+00 ( 0.0%) GeV particles out of time
> limit
> 2.9104E-15 ( 0.0%) GeV missing
>
> by the way, i am following the same steps given in battistoni's
> example to calculate boundary crossing energies. it says to me average
> 1524MeV per 1675MeV heavy ions leaves from 5cm air.
>
> could that be possible? thanks in advance.
>
> ciao
> ercan
>
>
> =======================
> Ercan Pilicer
> High Energy Physics Department
> Uludag University, Turkey
> =======================
>
>
-- ======================= Ercan Pilicer High Energy Physics Department Uludag University, Turkey =======================
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