An apparatus and method for providing focused x-ray, gamma-ray, charged particle and neutral particle, including neutron, radiation beams with a controllable amount of divergence are disclosed. The apparatus features a novel use of a radiation blocking structure, which, when combined with multiple-channel total reflection optics, increases the versatility of the optics by providing user-controlled output-beam divergence.
GOVERNMENT LICENSE RIGHTS
This invention was made with U.S. Government support under Contract No. DE-FG02-91ER81220 awarded by the Department of Energy. The Government has certain rights in this invention.