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SPECSOUR


    defines one of the following special sources:
       - two colliding beams
       - Galactic Cosmic Rays
       - Solar Particle Event
       - synchrotron radiation
       - USRBIN as source
       - multiple beams

    See also BEAM, BEAMAXES, BEAMPOSit, GCR-SPE, HI-PROPErt, POLARIZAti, SOURCE,
    USRICALL, USRGCALL, SPOTBEAM, SPOTPOS, SPOTDIR, SPOTTRAN

    This command allows to input up to 18 double precision parameters, depending
    on the option specified by 
SDUM
. A first continuation card, if required, is marked by a "&" in any position in column 71 to 78, or in the last field if free format is used. A possible second continuation card is similarly marked by "&&". For
SDUM
= PPSOURCE or ppsource, or CROSSASY or CROSSSYM, the source is produced by two colliding beams. The description of these options is presented separately in Chapter 15}. Cosmic ray sources are requested by one of the following
SDUM
values: Galactic Cosmic Rays: GCR-IONF, GCR-SPEC, GCR-ALLF Solar Particle Events: SPE-SPEC, SPE-2003, SPE-2005 The description of these options is presented separately in Chapter 16}. For
SDUM
= SYNC-RAD, SYNC-RDN, SYNC-RAS, SYNC-RDS the source consists in synchrotron radiation photons produced by a charged particle travelling in a magnetic field. A description of this option is presented separately in Chapter 17}. For
SDUM
= BEAMSPOT, the source consists of multiple beam spots. The user defines though the cards SPOTBEAM, SPOTPOS, SPOTDIR and SPOTTRAN the locations, directions, transformation and beam characteristics of those sources. In this case, the card needs as
WHAT(1)
the number of beam spots that are used. The user can define up to 15000 beam spots.
WHAT(1)
>= 0.0 : Number of beam spots in the simulation < 0.0 : The code stops
WHAT(2)
<= 0.0 : The beam spots are sampled randomly, according to their weights = 1.0 : The beam spots are sampled sequentially each with a number of primaries proportional to its weight = 2.0 : The beam spots are sampled sequentially, all with the same number of primaries, ignoring their weights If
SDUM
= BIN-SOUR, a USRBIN detector is used to define the spatial distribution of the primaries. The primary type is still defined through the BEAM card. Nota Bene : - The type of particles scored in the USRBIN is irrelevant to the primaries being launched through BIN-SOUR. - This option can only be used with a cartesian USRBIN.
WHAT(1)
= Logical unit in which to read the USRBIN file
WHAT(2)
= Detector index in the specified USRBIN file
WHAT(3)
= Rotation translation matrix to be applied before sampling
WHAT(4)
= Rotation translation matrix to be applied after sampling

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