Yes. For disk sources just enter zero for the source height. For point sources enter zero both for height and radius. You may notice that Angle will perform the calculations much faster in these cases, than for a cylindrical or Marinelli source.

Yes (except if you are using point or disk sources). It is very important to know as good as possible the materials of your whole configuration (including the source, its container, detector construction details, absorbing layers etc.), because it is an essential parameter for the calculation of gamma-ray attenuations (self-attenuation in case of source). However, it is not necessary to know the exact composition of the materials – only the knowledge of the major constituents would be enough, while those in trace quantities does not matter really (this is because in Angle material composition accounts for gamma-attenuation).

Yes. Simply select the “No container” option in the “Geometry” frame.

Yes. Simply click the “Source radius” option in the “Source” group of the main window and enter the value you want. This radius, of course, cannot be greater that the container’s inside radius.

No, Angle does not support spherical sources. Nevertheless, if there is an explicit user’s request to do this, such an option can be considered/developed.

No, Angle does not support cylindrical sources positioned perpendicularly to the detector axis. Nevertheless, if there is an explicit user’s request to do this, such an option can be considered/developed.

Angle currently supports only vertical container walls. If you want to approximate your container with the cylindrical one, we suggest you define the radius of the cylindrical container so that the volume and height of the source remain unchanged. Please note that a different height of the source would lead to another approximation for the container’s radius.