Abstract:
An ultraviolet sensitive gaseous discharge detector has essentially uniform angular sensitivity in a plane perpendicular to the axis of the detector tube and in the plane of the detector tube axis. The cathode of the detector is in the form of a thin sputtered layer of metal adhering to the inner wall of the envelope of the detector.
Abstract:
An ultraviolet sensitive gaseous discharge detector has an essentially uniform 360* angular sensitivity. The detector has first and second anodes and a cathode which are aligned in a common plane. The first and second anodes have elongated crosssections, with the elongated surfaces of the first and second anodes being aligned essentially parallel to the common plane. The cathode has an essentially circular cross-section and is disposed between the first and second anodes.