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 Sector
Shielding Analysis Tool Based on Geant4
The Sector Shielding Analysis Tool (SSAT)
performs ray-tracing from a user-defined point within the a geometry to
determine shielding levels (ie the fraction of solid angle for which
the shielding is within a defined interval) and shielding distribution (the
mean shielding level as a function of look direction). To achieve this tool
utilises the fictitious geantino particle, which undergoes no physical
interactions, but flags boundary crossings along its straight trajectory.
Knowledge of the positions of these boundary crossings together with the
density of the material through which the particle has passed can be used to
profile the shielding (in g/cm2, cm, or radiation lengths) for a
given point within the geometry.
The shielding provided by the geometry can be
sampled as a function of spherical polar coordinates q and f,
and the user may control the extent of the solid angle sampled. The number of
geantino histories followed, which determines the statistical accuracy of the
results, is also set by the user.
The SSAT outputs either 1-D or 2-D tabulated
histograms that define the shielding levels and shielding distribution
respectively. Associated with these is statistical information: Poisson
errors for 1-D shielding data, and standard deviation for 2-D histograms.
Further information
on the Sector Shielding Analysis Tool, as well as the source code to be used
with the Geant4 Toolkit, can be found in the documents and gzip file listed
on the right.
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Download Documents
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User Requirements Document for a Sector Shielding Analysis
Tool, v2
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PDF version
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Software Specification Document for the Sector Shielding
Analysis Tool, v0.a
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PDF version
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Software User's Manual for the Sector Shielding Analysts Tool
V2.2
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PDF version
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Need Adobe Acrobat Reader? Get it here.
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Download Source
Code
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Note that Geant4 must
already be installed on your system before installing the SSAT.
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Linux Executable (build with G4.9.3 and gcc4.2.0)
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SSAT v3.3 (tar-gzipped file)
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SSAT v2.3 (tar-gzipped file)
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SSAT v1.0 (tar-gzipped file, works with G4 v6.0)
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SSAT v1.0 (tar-gzipped file, works with G4 v4.1)
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SSAT is also available for Window platform in
the QinetiQ Geant4 application pack
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