Device for generating a source current of charge carriers
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United States of America Patent
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Mar 23, 2021
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N/A
app pub date -
Dec 20, 2019
filing date -
Dec 16, 2016
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Abstract
A device for generating a source current of charge carriers and a method for stabilizing a source current of charge carriers are disclosed. In an embodiment the device includes at least one field emission element configured to emit charge carriers, which lead to an emission current in the field emission element, at least one extraction electrode configured to apply an extraction voltage in order to extract the charge carriers from the field emission element, wherein a first part of the extracted charge carriers contributes to the source current, and a second part of the extracted charge carriers impinges on the extraction electrode and leads to an extraction current in the extraction electrode and a control device configured to reduce fluctuations of a controlled variable Q which is a characteristic for the source current, wherein Q is a function of a difference between the emission current and the extraction current.
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