The large synchrotron radiation (SR) facility, SPring-8, stores a
high energy 8 GeV electron beam and, radiates a high brilliance and
high intensity SR beam including components of higher energy than previously
existed. Therefore, the shielding design should be calculated for the
severe conditions which have not had to be applied to existing facilities.
A shielding-design code (STAC8) was developed to shield the SR beam
efficiently. This code is exclusively for SR beam shielding calculations
and has various features: the code makes it possible to deal with the
scattering of the linearly polarized photon beam which has never been
calculated. It can estimate consistently the SR spectrum and the dose
leaking from the shielding hatch. As good performances of both benchmark
tests and practical tests were obtained, not only the researchers of
SPring-8 but also those of foreign SR facilities have a great interest
in it. |