Resonance system
AssigneeMax-Planck-Gesellschaft zur Forderung der Wissenschaften e.V.
InventorsHermann Brunner, Karl H. Hausser, Werner Veith
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Abstract
A resonance system for ESR spectroscopy has a resonance cavity (23) which connected by axial slots (25) with chambers (24) coaxial to the resonance cavity (23). The resonance cavity (23) and the chambers (24) are located within a metallic screen (21). The wall sections (26) of the resonance cavity (23), separated by the axial slots (25), form the inductances of the resonance circuit, whereas the wall sections of the axial slots (25), located opposite one another, form the capacitances. The entire resonance system, including the screen, is made of metal and is, therefore, suitable for use at extremely low temperatures.
Claims15
Resonance system, in particular for use in ESR spectroscopy, comprising a loop-gap resonator including at least two metallic wall sections which define a cylindrical inner space having an axis and open ends each defining a plane which is perpendicular to said axis, each wall section having two end faces extending parallel to said axis, the end faces of adjacent wall sections facing each other and defining axial slots between said adjacent wall sections, said loop-gap resonator having an inductance defined by the dimensions of the wall sections and a capacitance defined by the dimensions of the axial slots separating adjacent wall sections, the system further comprising a metallic shield surrounding the loop-gap resonator, the improvement comprising metallic structures connecting each one of said wall sections to said metallic shield so that chambers are formed which are each limited by portions of said walls, of said metallic shield and of said metallic structures, and having an axis which is parallel to the axis of said cylindrical inner space, the perimeter of each of said chambers being significantly larger than the extent of the adjacent wall sections between their end faces in a plane which is perpendicular to said axis.
Resonance system in accordance with claims 3 or 6, comprising first and second loop-gap resonators, wherein the inner space (54) of the first loop-gap resonator is penetrated by a body (61) containing the inner space (63), the chambers and the connecting axial slots of said second loop-gap generator in such way that the axes of the inner spaces (54, 63) extend essentially perpendicularly relative to one another and the ends of the inner space (63) of the second loop-gap resonator are located opposite openings in the wall sections of the first loop-gap resonator.
Dependencies are inferred from the claim text.