Re: [fluka-discuss]: Flair plot

Hi Vladimir,
     OK, even if your are able to visualize the geometry correctly, a
GEOFAR error
usually indicates a problem in the geometry. In your case you have many
volumes and there
can be an accuracy problem in the definition of boundaries between them.
Inspecting the
.err file, you find for instance this message:

  Geofar: Particle in region     2 (cell #    0) in position
-1.000000000E-11  2.100900010E+01  6.253070334E-02
   is now causing trouble, requesting a step of  4.659204660E+01 cm
   to direction  1.000000000E+00  0.000000000E+00  0.000000000E+00,
error count:  0
   R2:  2.100900010E+01 R3:  2.100909316E+01 cm
   X*U   (2D): -1.000000000E-11 X*U   (3D): -1.000000000E-11 cm
   X*UOLD(2D):  0.000000000E+00 X*UOLD(3D):  0.000000000E+00 cm
   Kloop:          4, Irsave:      2, Irsav2:      2, error code: -3
Nfrom: *****
   old direction  0.000000000E+00  0.000000000E+00 0.000000000E+00,
lagain, lstnew, lsense, lsnsct  F  F  F  F
   Particle index    0 total energy   0.000000000E+00 GeV  Nsurf 0
  We succeeded in saving the particle:  current region is n.     4 (cell
#    0)

and see that FLUKA has problems in tracking particles from position XYZ
to direction ABC
by a step of S. The error position is given by the vector operation: XYZ
+ S * ABC.
You can do the following:

1. check the volume corresponding to the error position computed as above;
2. increase as much that you can the precision in the definition of your
geometry,
    switching maybe to free format (comma separated WHATs) to have more
than 10 digits precision;
3. reduce a bit WHAT(2) in GEOBEGIN (see manual): this is a parameter
used to define
    the boundaries position while tracking and in your case the default
might need to
    be readjusted;
4. activate the geometry debugger around the error point ith the GEOEND
card (see manual).

Hope this helps!
Andrea

Il 17/09/2017 10:18, Vladimir Fedorov ha scritto:

 Dear Andrea!
 I do not think that it is mistakes in Fluka geometry. Calculations
 take place without mistakes.
 Mistakes generate Flair+GEOFAR.
 I can show the page of geometry Flair. There everything is correct.
 --
 Best regards
 Vladimir Fedorov
 17.09.2017, 10:38, "Andrea Fontana" <andrea.fontana@pv.infn.it>:
 

 Hello Vladimir,
      I have looked at your files and it seems to me that there are
 errors in your
 geometry (I do not have the voxels file and cannot further investigate
 nor reproduce
 your error). Please check at the end of the flairbvvDJY001.out file:

   Abort called from GEOFAR reason  TOO MANY ERRORS IN GEOMETRY: STOP Run
 stopped!
   STOP  TOO MANY ERRORS IN GEOMETRY: STOP

 Best regards,
 Andrea


 Il 16/09/2017 19:57, Vladimir Fedorov ha scritto:

      --
      Best regards
      Vladimir Fedorov
      Dear Andrea!
      I cleaned all fields at Flair Plot, setup all auto, and got as a
      result the same picture without contours and some Flair's files
     (look
      at temp.zip).
      --
      Best regards
      Vladimir Fedorov
      16.09.2017, 17:25, "Andrea Fontana" <andrea.fontana@pv.infn.it
     <mailto:andrea.fontana@pv.infn.it>>:

          Hi Vladimir,
             I see that you use the geometry Red (front view) at
         position 21.
          You can try "Auto" and the geometry should be visible also
         with the log
          scale.

          Andrea

          Il 16/09/2017 15:47, Федоров Владимир ha scritto:

               Dear Andrea!
               Yes, I find Aspect under Title. Thank you.
               I can show Flair screen (see attachment))
               16.09.2017, 16:15, "Andrea Fontana"
         <andrea.fontana@pv.infn.it <mailto:andrea.fontana@pv.infn.it>
              <mailto:andrea.fontana@pv.infn.it
         <mailto:andrea.fontana@pv.infn.it>>>:

                   Dear Vladimir,

                   1. Have you tried to set the Geometry Use options
         (bottom
                  right in the
                   plot panel) to "Auto"
                       or to the name of your project?

                   2. If you click on "Title" in the plot panel, extra
         options
                  will be
                   available: here you can
                       force an aspect ratio 1 or select "Auto" to let
         Flair do
                  it for you.

                   Cheers,
                   Andrea

                   Il 16/09/2017 10:45, Vladimir Fedorov ha scritto:

                        Dear Flair experts!
                        I have two questions of drawing in Flair.
                        1. Why at setting of the linear scale of sizes
         I can
                  receive the
                        picture with contours of bodies (pict1.png).
         But if to
                  establish
                       a log
                        chart, then contours disappear (pict2.png).
         How to keep
                  a contours?
                        2. When drawing with identical sizes on axes
         (square)
                  the picture
                        looks oblate down. How to correct it?
                        I thank for the help.
                        --
                        Best regards
                        Vladimir Fedorov
                        --
                        Best regards
                        V.Fedorov

                   --
                   ========================================================================
                   Dr. Andrea Fontana tel: +39 0382 987991
                   Istituto Nazionale fax: +39 0382 423241
                   di Fisica Nucleare
                   Sezione di Pavia e-mail: andrea.fontana@pv.infn.it
         <mailto:andrea.fontana@pv.infn.it>
                  <mailto:andrea.fontana@pv.infn.it
         <mailto:andrea.fontana@pv.infn.it>>
                   <mailto:andrea.fontana@pv.infn.it
         <mailto:andrea.fontana@pv.infn.it>
                  <mailto:andrea.fontana@pv.infn.it
         <mailto:andrea.fontana@pv.infn.it>>>
                   Via Bassi 6 web : www.pv.infn.it/~fontana
         <http://www.pv.infn.it/%7Efontana>
                  <http://www.pv.infn.it/%7Efontana>
                   <http://www.pv.infn.it/%7Efontana>
                   27100 PAVIA, Italy
                   ========================================================================

               --
               Best regards
               V.Fedorov

          --
          ========================================================================
          Dr. Andrea Fontana tel: +39 0382 987991
          Istituto Nazionale fax: +39 0382 423241
          di Fisica Nucleare
          Sezione di Pavia e-mail: andrea.fontana@pv.infn.it
         <mailto:andrea.fontana@pv.infn.it>
          <mailto:andrea.fontana@pv.infn.it
         <mailto:andrea.fontana@pv.infn.it>>
          Via Bassi 6 web : www.pv.infn.it/~fontana
         <http://www.pv.infn.it/%7Efontana>
          <http://www.pv.infn.it/%7Efontana>
          27100 PAVIA, Italy
          ========================================================================

      --
      Best regards
      V.Fedorov

 --
 ========================================================================
 Dr. Andrea Fontana tel: +39 0382 987991
 Istituto Nazionale fax: +39 0382 423241
 di Fisica Nucleare
 Sezione di Pavia e-mail: andrea.fontana@pv.infn.it
 <mailto:andrea.fontana@pv.infn.it>
 Via Bassi 6 web : www.pv.infn.it/~fontana
 <http://www.pv.infn.it/%7Efontana>
 27100 PAVIA, Italy
 ========================================================================
 

 --
 Best regards
 V.Fedorov

 

--
========================================================================
Dr. Andrea Fontana tel: +39 0382 987991
Istituto Nazionale fax: +39 0382 423241
di Fisica Nucleare
Sezione di Pavia e-mail: andrea.fontana@pv.infn.it
Via Bassi 6 web : www.pv.infn.it/~fontana
27100 PAVIA, Italy
========================================================================

 

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