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1. (WO2017204850) DIVERGING X-RAY SOURCES USING LINEAR ACCUMULATION

Pub. No.:    WO/2017/204850    International Application No.:    PCT/US2016/063884
Publication Date: Fri Dec 01 00:59:59 CET 2017 International Filing Date: Tue Nov 29 00:59:59 CET 2016
IPC: H01J 35/10
H01J 35/06
H01J 35/18
Applicants: SIGRAY, INC.
Inventors: LEWIS, Sylvia Jia Yun
YUN, Wenbing
KIRZ, Janos
LYON, Alan Francis
REYNOLDS, David Charles
Title: DIVERGING X-RAY SOURCES USING LINEAR ACCUMULATION
Abstract:
.A compact source for high brightness x-ray generation is disclosed. The higher brightness is achieved through electron beam bombardment of multiple regions aligned with each other to achieve a linear accumulation of x-rays. This may be achieved through the use of x-ray targets that comprise microstructures of x-ray generating materials fabricated in close thermal contact with a substrate with high thermal conductivity. This allows heat to be more efficiently drawn out of the x-ray generating material, and allows bombardment of the x-ray generating material with higher electron density and/or higher energy electrons, leading to greater x-ray brightness. The orientation of the microstructures allows the use of a take-off angle at or near 0°, allowing the accumulation of x-rays from several microstructures to be aligned and be used to form a beam in the shape of an annular cone.