is the number of positron true?

Dear All,

I want to produce the positron where the electron hits on the target.
I produced the positrons but I not sure that I found the positron numbers.

I used as the *.inp

#######################
TITLE
Pos_prod
GLOBAL 1. 1.
DEFAULTS EM-CASCA
BEAM -2.0 ELECTRON
BEAMPOS 0.0 0.0 0.0
GEOBEGIN COMBNAME
     0 0 Bench Test Geometry
RPP exVoid -10000.0 10000.0 -10000.0 10000.0 -10000.0 10000.0
RPP inVoid -100. 100. -100. 100. -5.0 30.
RPP box -0.8 0.8 -0.8 0.8 0.0 20.0
XYP cutZ 3.439
END
blkHole 5 +exVoid -inVoid
expHole 5 +inVoid -box
target 5 +box+cutZ
vacuum 5 +box -cutZ
END
GEOEND
MATERIAL 75. 186.207 21.02 RHENIUM
MATERIAL 0.0 0.0 19.613 W75RE25
MATERIAL 0.0 0.0 0.0012048 AIR
COMPOUND 1.24E-4 CARBON .755267 NITROGEN .231781 OXYGENAIR
COMPOUND 0.012827 ARGON 0.0 AIR
COMPOUND -75.0 TUNGSTEN -25.0 RHENIUM W75RE25
ASSIGNMA BLCKHOLE blkHole
ASSIGNMA VACUUM expHole
ASSIGNMA W75RE25 target
ASSIGNMA VACUUM vacuum
SCORE ALL-PART ENERGY EM-ENRGY POSITRON
USRBIN 10. ENERGY -50. 0.8 0.8 3.439endepbin50
USRBIN -0.8 -0.8 0.0 100. 100. 300.&
USRBIN 10. POSITRON -50. 0.8 0.8 20.podepbin52
USRBIN -0.8 -0.8 3.5 100. 100. 300.&
USRBDX -1. POSITRON -54. target vacuum 2.56poscur55
USRBDX 5.0 1E-8 100.&
RANDOMIZ 1.
START 5000. 0.0
STOP

##################################

Then I run it
and

I made

cd $FLUPRO/flutil
./flfluka usxsuw.f -o usxsuw
make
cd $HOME/flukawork
$FLUPRO/flutil/usxsuw

Type the input file:example001_fort.47
                     example002_fort.47
                        .
                        .

and the ..._sum.lis and ..._tab.lis files are created.

Finally I looked in the ..._sum.lis

----------------------------------------------------------
  **** num_pos_el ****

  Pos_prod

   Total primaries run: 5000
    Total weight of the primaries run: 5000.

   Detector n: 1( 1) poscur55
      (Area: 2.55999994 cmq,
       distr. scored: 4 ,
       from reg. 3 to 4,
       one way scoring,
       current scoring)

      Tot. resp. (Part/cmq/pr) 0.5178894 +/- 99.00000 %
      ( --> (Part/pr) 1.325797 +/- 99.00000 % )

   **** Different. Fluxes as a function of energy ****
   **** (integrated over solid angle) ********
--------------------------------------------------------------

the number of the positron [produced via 1 electron] = 1.325797
is it true??

Thanks for your help

Ertan
Received on Mon Feb 07 2011 - 09:33:43 CET