Radiant tube and particle accelerator having a radiant tube

摘要

A radiant tube (4) for guiding a charged particle stream (10) has a hollow cylindrical isolation core (6) directly encompassing a beam-guiding hollow volume (8). The isolation core (6) is formed from a dielectrically acting carrier substrate (14) and an electrical conductor (16) held therein. The conductor (16) is divided into a plurality of conductor loops (20) completely encompassing the circumference of the isolation core (6) at different axial positions of the isolation core (6). The conductor loops (20) are galvanically connected to each other.

主权项

1. A beam tube for guiding a charged particle beam, comprising:
a hollow cylindrical isolation core defining continuous cylindrical inner and outer walls, the inner wall defining a cylindrical beam-guiding cavity radially inward of the continuous cylindrical inner wall, the core formed from a dielectrically acting carrier substrate; an electrical conductor held within the cavity positioned in close proximity to the core inner wall for close exposure to an electric charge of secondary electrons formed on the inner wall of the core, wherein the conductor is divided into a plurality of conductor loops, each loop (a) extending fully around the circumference of the beam-guiding cavity at different axial positions, (b) are fully located radially inward of the continuous cylindrical inner wall of the hollow cylindrical isolation core, and (c) are conductively connected to one another; and a metal housing directly enclosing the outer cylindrical wall of the hollow cylindrical isolation core; wherein the electrical conductor is conductively connected to the cylindrical housing at two or more mutually separated points.