Ion mobility spectrometer with mechanically stabilized vacuum-tight x-ray window
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United States of America Patent
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May 25, 2004
Grant Date -
Dec 12, 2002
app pub date -
Apr 25, 2002
filing date -
Apr 26, 2001
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Abstract
An ion mobility spectrometer (IMS) has a non-radioactive electron source and an x-ray anode in an evacuated chamber. The impinging of electrons from the source on the anode results in the generation of x-ray radiation. The x-ray radiation passes through a window that provides a vacuum barrier between the electron source chamber and a reaction chamber of the IMS by an x-ray window. A support grid is attached to the reaction-chamber side of the x-ray window, and mechanically stabilizes the window.
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