Micro-channel plates
AssigneeU.S. Philips Corporation
InventorsGeorge W. Fraser, Richard Willingale
Life of this patent
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Abstract
A micro-channel plate for use in focusing X-rays or particles of equivalent wavelengths has a radially packed array of square pores. For focussing parallel rays, such micro-channel plate may consist of two square-pore spherically curved and radially packed micro-channel plate elements having different radii of curvature and overlying one another, forming a concavo-convex compound plate. Such a plate is capable of providing a greater effective area than prior art square packed micro-channel plates at high X-ray energies.
Claims5
A micro-channel plate for projecting a focused image of radiation incident thereon having a wavelength in the X-ray band, the plate comprising an array of glass-walled square pores which are internally reflective, the projected image being formed by the reflected radiation resulting from the portion of the incident radiation having a grazing angle of incidence on the walls of said pores;
- characterized in that said pores are radially packed around an optical axis of said array, whereby all pores at a given radius produce the same area of the projected image formed from incident radiation on said plate in a direction parallel to said optical axis.
Dependencies are inferred from the claim text.