Geometry errors

From: Burge, F \(Frances\) (frances.burge@diamond.ac.uk)
Date: Thu Apr 19 2007 - 17:48:54 CEST

  • Next message: Burge, F \(Frances\): "geometry errors - now fixed !"

    Hello fluka users,

    I am trying to create a simple geometry for a wall made from
    intersecting planes,with a vacuum around. My input is at the end of this
    message.
    It has plotted successfully in SimpleGeo, with the debugger not showing
    any errors, and looks like the cuboid I was expecting. However when I
    run it in fluka I get a message in the log file: STOP TOO MANY ERRORS
    IN GEOMETRY: STOP statement executed.
    The fluka geometry debugger hasn't shown any problems although I do get
    a message in the .out file:
      *** Region # 2 Dnear according to possible overlapping ORs ***
    0NGEOM= 4002, NGLAST= 4604
    I don't know if this has any relevance to the problem.

    If anyone can spot the error in this geometry, I'd be very grateful.

    Thanks,

    Frances

    Frances Burge
    Health Physicist
    01235 778269
    Diamond Light Source Ltd.
    Rutherford Appleton Laboratory
    Chilton
    Didcot
    OX11 0QX
     

    *...+....1....+....2....+....3....+....4....+....5....+....6....+....7..
    * Geometry
    ******************************************************************
    GEOBEGIN
    COMBNAME
        0 0
    **AAA*IIII_________+_________+_________+_________+_________+_________+
    RPP BLK -5000. 5000. -5000. 5000. -5000. 5000.
    * box inside black hole
    RPP VACBOX -1000. 1000. -1000. 1000. -1000. 1000.
    * Planes to define hutch walls/floor/roof
    XYP INUSW +0.7
    XYP OUTUSW +0.0
    XZP OUTSW1 -100.7
    XZP OUTSW2 +100.7
    YZP INFLR +0.0
    YZP INROOF +300.0
      END
    * Regions
    *******************************************************************
    *_AAA.....AA.....AA.....AA.....AA.....AA.....AA.....AA.....AA.....AA....
    .
    * Black Hole
    BLKHOLE 5 +BLK -VACBOX
    * Void around excluding wall USWALL defined below
    VAC1 5 +VACBOX -(-OUTUSW +INUSW +OUTSW2 -OUTSW1 +INROOF
    -INFLR)
    * Wall defined by intersecting planes
    USWALL 5 -OUTUSW +INUSW +OUTSW2 -OUTSW1 +INROOF -INFLR
      END
    GEOEND +1498.0 +1498.0 +1498.0 -1498.0 -1498.0
    -1498.0DEBUG
    GEOEND 50.0 50.0 50.


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