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SPOTBEAM



 The SPOTBEAM card is used in conjunction with SPOTDIR and SPOTPOS
 to define multiple beam spots. A new primary is created randomly
 in any of the listed beam spots according to their respective weight
 or in sequential order (see SPECSOUR).

 Warning : These three cards are activated by indicating 
SDUM
= BEAMSPOT in the SPECSOUR card. Barring this, the spot cards will be discarded. See also SPOTDIR, SPOTPOS, SPOTTRAN
WHAT(1)
!=0.0 : particle id (Paprop) or A + 1000 Z + 100000 m for heavy ion beams = 0.0 : particle id as per BEAM card =-99999: special code for printout (see what(6))
Default
: 0.0
WHAT(2)
> 0.0 : Beam laboratory momentum (GeV/c) < 0.0 :
WHAT(2)
is the beam laboratory kinetic energy/n (GeV/n) = 0.0 : Beam momentum as per BEAM card
Default
: 0.0
WHAT(3)
>=0.0 : Beam spot weight (number of particles) < 0.0 : Stops the code
WHAT(4)
> 0.0 : Rectangular momentum spread (GeV/c) < 0.0 : Gaussian momentum spread.
WHAT(4)
is the FWHM (GeV/c) = 0.0 : No momentum spread
Default
: 0.0
WHAT(5)
> 0.0 : Rectangular angular X divergence of the beam (mrad) < 0.0 : Gaussian angular X divergence.
WHAT(5)
is the FWHM (mrad) = 0.0 : No angular X divergence
Default
: 0.0
WHAT(6)
> 0.0 : Rectangular angular Y divergence of the beam (mrad) < 0.0 : Gaussian angular Y divergence.
WHAT(6)
is the FWHM (mrad) = 0.0 : No angular Y divergence
Default
:
WHAT(5)
SDUM
: Beam spot number (free format)
Default
: n+1 where n is the number of the last previously defined spot For
WHAT(1)
= -99999 WHAT(2-5) : not used
WHAT(6)
> 0.0 : (All) beam spot infos are printed on the output < 0.0 : resets to default (no printout) = 0.0 : ignored
Default
: -1.0

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