US 11,558,954 B2 · Photon neutralizers for neutral beam injectors

Abstract

A non-resonance photo-neutralizer for negative ion-based neutral beam injectors. The non-resonance photo-neutralizer utilizes a nonresonant photon accumulation, wherein the path of a photon becomes tangled and trapped in a certain space region, i.e., the photon trap. The trap is preferably formed by two smooth mirror surfaces facing each other with at least one of the mirrors being concave. In its simplest form, the trap is elliptical. A confinement region is a region near a family of normals, which are common to both mirror surfaces. The photons with a sufficiently small angle of deviation from the nearest common normal are confined. Depending on specific conditions, the shape of the mirror surface may be one of spherical, elliptical, cylindrical, or toroidal geometry, or a combination thereof.

Claims11

Dependent claims

A non-resonance photo-neutralizer for neutral beam injectors comprising

first and second mirrors defining an open ended chamber, the first and second mirrors being spaced apart with opposing reflective surfaces and extending in a first direction between first and second ends of the open ended chamber, first ends of the first and second mirrors and seconds ends of the first and second mirrors being spaced apart and defining first and second openings at the first and second ends of the open ended chamber, the first mirror being concave along the first direction with the first and second ends of the first mirror being positioned closer to the second mirror than a central portion of the first mirror,
wherein the first mirror is concave in a second direction transverse to the first direction.

Dependencies are inferred from the claim text.

Photon neutralizers for neutral beam injectors

Life of this patent

Photon neutralizers for neutral beam injectors

Life of this patent

Abstract

Claims11