The Volumetric source emit particles from randomly sampled starting positions from within the radioactive volume of a given component.
This source type has been designed for Brachytherapy applications (though there may be other applications as well).
Specify source type as:
s:So/MySource/Type = "Volumetric"
And then add an additional required parameter:
to specify which material within the given component should be considered radioactive.
So, for example, if you have:
s:So/MySource/Type = “Volumetric” s:So/MySource/Component = “ActiveSource” sc:So/MySource/ActiveMaterial = “G4_Ir”
particles will start from randomly sampled positions within the Iridium parts of the component named ActiveSource.
Examples that use this source can be found in:
The energies and species of the emitted particles can be specified using the same parameters available to the Beam Sources.