Assertion: parallelepiped's dimension | /r/HasProperty | length
Facets:
Source sentences:
text: If there is a parallelepiped source with dimensions (length), (width), and (height) as illustrated in Figures 2 and 3, the effective solid angle, , is given by where while and are the self-attenuation factor of the source matrix and the attenuation factor of the container material, respectively, which can be represented by the following equations: where is the attenuation coefficient of the source matrix, where the source is filled with radioactive material, and is the attenuation coefficient of the source container material, while is the distance traveled by the emitted photon inside the source and is the distance traveled by the emitted photon inside the source container material.