Re: [fluka-discuss]: How to export 3D data in txt/dat format in fluka/flair

From: Answers <>
Date: Mon, 24 Feb 2020 14:14:22 +0100 (CET)

Dear Tamer,
the fourth column in the FileName_98_plot.dat is the error (in %) related
to the measured quantity.

In order to have 3D data, you can run the simulations as you did, and then
you use usbrea, available in $FLUPRO/flutil. Usbrea reads an
unformatted file and returns the equivalent formatted file,
including the standard deviations, if the input file was produced by
usbsuw.f (or by Process in Flair).

Alternatively you can save the data in an unformatted (ASCII) file.
In your output file you will have a header followed by a matrix of values,
where each value is the measured quantity (in your case E)
in a given voxel of coordinates (x,y,z), if you are scoring with Cartesian
In other words, the values you will read in the file are the energies
associated to the different voxels.
However, in this case you cannot merge output files from different cycles.

Please keep in mind that USRBIN results are normalized to bin volumes,
calculated automatically by the code.

Hope this helps.

On Fri, 21 Feb 2020, Tamer Tolba wrote:

> Dear all,
> I am using USRBIN card to score Energy deposited in some block using
> Unit: 98 BIN, and run it for 10 iterations/cycles. Then, I merge the
> data of the 10 produced "Filename#_fort.98" files using
> Run->Data->Process. For 2D post-processing I plot the different
> projections (xy, xy, yz) using the generated binary *.bnn file, I also
> get the exported 2D data (of the projected plot) in the
> FileName_98_plot.dat file. I have two questions:
> 1- When projecting on the beam axis (i.e. the z axis), I get the x and y
> data, so I expect the FileName_98_plot.dat file to contain 3 columns x y
> E, but I get 4 columns x y E something?? What is the fourth column?
> 2- My main question, actually I need to export the data ( deposited
> energy distribution) in the whole volume, i.e. I need to export 3D data
> in *.dat or *.txt format (i.e. in the form in the form x, y, z, E)! How
> can I do that?
> Regards,
> Tamer
> --
> Dr. Tamer Tolba
> Forschungszentrum Jülich
> Institut für Kernphysik (IKP)
> 52425 Jülich, Germany
> Tel.: +49 2461 61 6860
> Fax.: +49 2461 61 96415
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Received on Mon Feb 24 2020 - 16:05:50 CET

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