Re: a simple example

From: Alberto Fasso' (Alberto.Fasso@cern.ch)
Date: Mon Mar 10 2003 - 16:17:25 CET


You cannot make a region with only a body with a negative sign.
At least one positive sign is always necessary.
In addition the outer surface of the outside "blackhole" must be made with a
closed body, such as SPH, RPP etc.

So, instead of

GEOBEGIN 0.0 COMBINAT
                      Text
  SPH 1 100.0
  END
*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
  BL1 5 -1
  AI2 5 +1
  END
*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
GEOEND

you must have something like:

GEOBEGIN 0.0 COMBINAT
                      Text
  SPH 1 200.0
  SPH 2 100.0
  END
*-reg-----or-----or-----or-----or-----or-----or-----or-----or-----or-----
  BL1 5 +1 -2
  AI2 5 +2
  END
*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
GEOEND

  Alberto

On Mon, 10 Mar 2003, wuzhen wrote:

> Dear fluka user,
> Who can help me to check the following simple input file? I think the result should not be zero? thanks a lot!
>
>
>
> TITLE
> Text
> DEFAULTS NEW-DEFA
> *---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
> BEAM -4.5E-3 0.0 0.0 0.0 0.0 1.0PHOTON
> BEAMPOS 0.0 0.0 0.0 0.0 0.0
> *---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
> GEOBEGIN 0.0 COMBINAT
> Text
> SPH 1 100.0
> END
> *---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
> BL1 5 -1
> AI2 5 +1
> END
> *---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
> GEOEND
> *---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
> ASSIGNMA 1.0 1.0
> ASSIGNMA 2.0 2.0
> *---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
> OUTLEVEL 1.0 7.0
> *---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
> USRBDX 101.0 7.0 35.0 2.0 1.0 1.0PHOTON
> USRBDX 4.5E-3 0.0 1.0 &
> *---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----*
> RANDOMIZ 1.0
> START 1.0E+4 1.0E+8
> STOP
>
> Best regards,
> Zhen wu
>

-- 
Alberto FassÚ
CERN-EP/AIP, CH-1211 Geneve 23 (Switzerland)
Phone: (41 22) 767 2398    Fax: (41 22) 767 9480   Alberto.Fasso@cern.ch


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