Field emission source for ion mobility spectrometry
AssigneeVerily Life Sciences LLC
InventorBenjamin Krasnow
Life of this patent
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Abstract
In one aspect, a field emission source is disclosed herein. The field emission source may include a field emission layer having at least one structure configured to emit electrons, a spacer contacting the field emission layer, and a window layer contacting the spacer and positioned opposed the at least one structure. The window layer may be transparent to electrons. Moreover, the field emission layer, the spacer, and the window layer may form an airtight cavity. In some cases, the field emission source may be used in an ion mobility spectrometer (IMS) system.
Claims20
A field emission source comprising:
- a field emission layer comprising at least one structure configured to emit electrons;
- a spacer contacting the field emission layer;
- and
- a window layer contacting the spacer and positioned opposed the at least one structure, wherein the window layer is transparent to electrons,
- wherein the field emission layer, the spacer, and the window layer form an airtight cavity.
An ion mobility spectrometer comprising:
- an input aperture configured to receive a gas;
- a field emission source comprising:
- a field emission layer comprising at least one structure configured to emit electrons;
- a spacer contacting the field emission layer;
- and
- a window layer contacting the spacer, wherein electrons are passable through the window layer,
- wherein the field emission layer, the spacer, and the window layer form a vacuum cavity, and
- wherein the field emission source is configured to ionize the gas;
- and
- an ion guide comprising a first end and a second end, the first end being configured to receive the ionized gas.
A field emission source comprising:
- a field emission layer;
- at least one structure configured to emit electrons;
- a first layer comprising a window, wherein the window is transparent to electrons;
- and
- a spacer having a first side and a second side, wherein the first side is bonded to the field emission layer and the second side is bonded to the first layer such that the field emission layer, spacer, and window form a vacuum-sealed cavity encompassing the at least one structure.
Dependencies are inferred from the claim text.