Patent ID: 8368996
Filing Date: 2013-02-05
Classification: G01J

Abstract:
1. A tunable bandwidth selector for separating one of a first bandwidth and a second bandwidth from an input spectrum including the first bandwidth and the second bandwidth, the tunable bandwidth selector comprising: at least one source of electrons; a first apparatus which arranges at least a portion of the electrons produced by the at least one source of electrons in a plurality of spaced apart electron sheets; and a second apparatus which alters a spacing of the plurality of spaced apart electron sheets, wherein a first spacing of the plurality of spaced apart electron sheets results in the first bandwidth being separated from the input spectrum and a second spacing of the plurality of spaced apart electron sheets results in the second bandwidth being separated from the input spectrum; wherein the first apparatus includes a first charged plate with a plurality of slits provided therein and a second charged plate spaced apart from the first charged plate, the plurality of spaced apart electron sheets being formed by electrons passing through the plurality of slits and traveling to the second charged plate.