Electron collector with oblique impact portion
AssigneeExcillum AB
InventorsTomi TUOHIMAA, Ulf LUNDSTRÖM, Björn HANSSON
Life of this patent
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Abstract
An X-ray source including a liquid target source configured to provide a liquid target in an interaction region of the X-ray source, an electron source adapted to provide an electron beam directed towards the interaction region, such that the electron beam interacts with the liquid target to generate X-ray radiation, and an electron collector arranged at a distance downstream of the interaction region, as seen along a travel direction of the electron beam. The electron collector includes an impact portion configured to absorb electrons of the electron beam impinging thereon, and the impact portion is arranged so as to be oblique with respect to the travel direction of the electron beam at the impact portion.
Claims15
An X-ray source comprising:
- a liquid target source configured to provide a liquid target in an interaction region of the X-ray source;
- an electron source adapted to provide an electron beam directed towards the interaction region, such that the electron beam interacts with the liquid target to generate X-ray radiation;
- an electron collector arranged at a distance downstream of the interaction region, as seen along a travel direction of the electron beam;
- wherein:
- the electron collector comprises an impact portion configured to absorb electrons of the electron beam impinging thereon;
- and
- the impact portion is arranged so as to be oblique with respect to the travel direction of the electron beam at the impact portion;
- wherein the impact portion forms part of an inner surface of a recess extending into the electron collector;
- and
- the recess is oriented so as to prevent the electron beam from directly impinging on a bottom of the recess.
A method in an X-ray source configured to generate X-ray radiation upon interaction, in an interaction region, between an electron beam and a liquid target, comprising:
- directing the electron beam towards the interaction region;
- and
- impacting the electron beam on an impact portion of an electron collector arranged at a distance downstream of the interaction region, as seen along a travel direction of the electron beam;
- wherein:
- the impact portion is oblique with respect to the travel direction of the electron beam at the impact portion and forms a part of an inner surface of a recess extending into the electron collector;
- and
- the recess is oriented so as to prevent the electron beam from directly impinging on a bottom of the recess.
Dependencies are inferred from the claim text.