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raygen
uses an IRAF compatible parameter file.
It takes the following parameters
source
The lua
script which specifies the sources.
source_override
lua
statements to be passed to the source script. These are
placed in a function called override
, which may be called by the
source script.
ea
A lua
script which defines the entrance aperture to illuminate.
ea_override
lua
statements to be passed to the entrance_aperture script.
These are placed in a function called override
, which may be
called by the script.
output
The output file. If it is the string ‘stdout’, the rays are written to the UNIX standard output stream.
logfile
A file to which logging output should be written. If it is the string ‘stderr’ the rays are written to the UNIX standard error stream.
limit_type
This determines how raygen
knows when to stop outputting rays.
It determines what the limit
parameter specifies. It can one of
the following values:
the number of rays
the number of rays, in units of one thousand rays
the number of rays, in units of one million rays
the time to run, in seconds
the time to run, in units of one thousand seconds
rays per square centimeter at the entrance aperture
rays per square millimeter at the entrance aperture
limit
The quantity of whatever limit_type
specifies that raygen
must generate.
node
The node Z position (mm) from which to measure the off-axis source angle (I<theta>).
seed1
The first seed for the random number generator. It must be in the range [1,2147483562].
seed2
The second seed for the random number generator. It must be in the range [1,214748339]
block
The random number block to start at. It must be in the range [0,1048575].
ray_dist
How the rays should be distributed at the entrance aperture. Currently, only ‘random’ is supported.
debug
A list of debug flags; none are presently available.
version
Output the version to the UNIX standard error stream and exit.
help
Output a help message and exit.
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