Hi Hans,
even in case of 1 bin scorings, you can get the total value from *_sum.lis file (look for the line: Tot. response)
or from the the last line of *_tab.lis (last line).
Keep in mind that in the last file the value is divided by the bin width.
I confirm that the issue is only related to the photon dose (or more in general to all particles but neutrons):
I ran your input, as it is, and, as you can see from the attached snapshot, the only empty distribution is the one of the photon dose.
As I said in my previous email, the issue is just related to gnuplot that cannot plot single-bin distribution and
cannot be present in case to neutron dose because the binning is forced to be the same as the neutron group structure, regardless of the number of bins
you input in the USRTRACK card.
Best regards, luigi
P.S. Please keep posting on the mailing list.
[cid:0FBE7E7C-F639-4B42-8B27-D0DCE6493420_at_cern.ch]
On 27 Oct 2015, at 15:24, Hans Beijers <beijers_at_KVI.nl<mailto:beijers_at_kvi.nl>> wrote:
Hi Luigi,
Thanks for your comments. However, the photons are fine. I get spectra
in all angular bins, and also ambient dose values. But with the neutrons
I do get spectra, but the ambient dose values are all zero although I
use the same binnings as with the photons.
Do you mean that in the USRTACK tally for the ambient dose I should use
more than one bin? But I am only interested in the total dose, not the
energy dependent dose.
Best regards,
Hans
On 10/27/2015 12:53 PM, Luigi Salvatore Esposito wrote:
Hi Hans,
actually the problem is related to the ambient dose scorings when filtered out on the photons (NOT neutrons as you wrote).
For these scorings you have only 1 bin and gnuplot shows an empty distribution in this case.
If you set more bins (as for your particle fluence scoring, where you set the number of bins to 60), you will have non empty distributions.
By the way, though you have 1 bin also for the neutron dose scorings, you had no problem
since for neutrons below 20 MeV the binning is anyhow determined by the neutron group structure.
Best regards, luigi
On 27 Oct 2015, at 09:39, Hans Beijers <beijers_at_KVI.nl<mailto:beijers_at_kvi.nl>> wrote:
Dear FLUKA experts,
I am studying angle-dependent photon and neutron spectra and doses
produced by a 30 MeV electron beam on a tungsten disk. The photons and
neutrons are tallied on a 5 m radius sphere which is intersected by
cones to get the spectra and doses in angular bins 0-10 degr, 10-30
degr, 30-60 degr, 60-120 degr and 120-180 degr. With the photons I get
spectra and doses, but with the neutrons I get spectra, but the doses in
the angular bins are all zero. I must be making a mistake, but I don't
see where. Any help is greatly appreciated.
Best regards,
Hans
<nph_spec_cyl.inp>
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Received on Tue Oct 27 2015 - 17:57:18 CET