Abstract: The invention provides a polarizing device and a method for producing and utilizing the device. The device produces a modification in radiation flux and provides a bias toward photons approaching a target's face at more or less right angles. Accordingly, the radiation flux polarizing device reduces the number of photons that are not traveling at near right angle to the face of a "target" being irradiated, without significantly reducing photons approaching, or reaching the minimum base point in the target. In a sense, the invention converts a normal isotropic radiation source to one that is anisotropic.

Abstract: In a radiation shield between joinder surfaces to preclude a radiation path therethrough, a series of alternating complemental ridges and valleys on each surface. The ridges and valleys on each surface are in turn interdigitated with the complementary ridges and valleys on the second surface and of a height and depth sufficient to preclude the lateral free movement of radiation flux.