Excillum Ab

Björn Hansson

Per Takman

Ulf Lundström

Tomi Tuohimaa

Shiho Tanaka

Yuli Wang

Andrii Sofiienko

Göran Johansson

Daniel Nilsson

Julius Hållstedt

A liquid metal jet X-ray source including an electromagnetic pump for pumping the liquid metal. The electromagnetic pump includes a core having a core diameter and an outer yoke with a thickness of at least 20% of the core diameter. Preferably, the thickness of the outer yoke is at least 20% of the core diameter plus 6% of a radial distance between an outside of the core and an inside of the yoke.

X-ray source with an electromagnetic pump

An X-ray source including: a liquid target source configured to provide a liquid target moving along a flow axis; an electron source configured to provide an electron beam; and a liquid target shaper configured to shape the liquid target to include a non-circular cross section with respect to the flow axis, wherein the non-circular cross section has a first width along a first axis and a second width along a second axis, wherein the first width is shorter than the second width, and wherein the liquid target includes an impact portion being intersected by the first axis; wherein the x-ray source is configured to direct the electron beam towards the impact portion such that the electron beam interacts with the liquid target within the impact portion to generate X-ray radiation.

X-ray source and method for generating X-ray radiation

An electromagnetic pump for pumping an electrically conductive liquid, including a first conduit section and a second conduit section. The electromagnetic pump further includes a current generator arranged to provide an electric current through the liquid in the first conduit section and the liquid in the second conduit section such that a direction of the electric current is intersecting the flow of the liquid in the first conduit section and in the second conduit section, and a magnetic field generating arrangement arranged to provide a magnetic field passing through the liquid in the first conduit section and the second conduit section such that a direction of the magnetic field is intersecting the flow of the liquid and the direction of the electric current.

A method for imaging a sample by means of an X-ray detector is disclosed, including providing an electron beam interacting with a target to generate X-ray radiation emitted from an X-ray spot on the target, moving the sample relative to the target, deflecting the electron beam such that the X-ray spot is moved over the target simultaneously and in accordance with the movement of the sample, and detecting X-ray radiation emitted from the X-ray spot and interacting with the sample.

Method for imaging a sample

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.

Electron collector with oblique impact portion

The present inventive concept relates to an X-ray source comprising: a liquid target source configured to provide a liquid target moving along a flow axis; an electron source configured to provide an electron beam; and a liquid target shaper configured to shape the liquid target to comprise a non-circular cross section with respect to the flow axis, wherein the non-circular cross section has a first width along a first axis and a second width along a second axis, wherein the first width is shorter than the second width, and wherein the liquid target comprises an impact portion being intersected by the first axis; wherein the x-ray source is configured to direct the electron beam towards the impact portion such that the electron beam interacts with the liquid target within the impact portion to generate X-ray radiation.

X-ray source and method for generating x-ray radiation

A method in an X-ray source configured to emit, from an interaction region, X-ray radiation generated by an interaction between an electron beam and a target, the method including the steps of: providing the target; providing the electron beam; deflecting the electron beam along a first direction relative the target; detecting electrons indicative of the interaction between the electron beam and the target; determining a first extension of the electron beam on the target, along the first direction, based on the detected electrons and the deflection of the electron beam; detecting X-ray radiation generated by the interaction between the electron beam and the target; and determining a second extension of the electron beam on the target, along a second direction, based on the detected X-ray radiation.

Determining width and height of electron spot

A solid X-ray target for generating X-ray radiation is disclosed. The X-ray target includes at least one material selected from a list including trivalent elements; and at least one material selected from a list including pentavalent elements, wherein a first one of the materials is capable of generating the X-ray radiation upon interaction with an electron beam, and a second one of the materials forms a compound with the first one of the materials. An X-ray source including such an X-ray target and an electron source is also disclosed.

Semiconductor X-ray target

An X-ray source and a corresponding method for generating X-ray radiation are disclosed. The X-ray source includes a target generator, an electron source and a mixing tool. The target generator is adapted to form a liquid jet propagating through an interaction region, whereas the electron source is adapted to provide an electron beam directed towards the interaction region such that the electron beam interacts with the liquid jet to generate X-ray radiation. The mixing tool is adapted to induce mixing of the liquid jet at a distance downstream of the interaction region such that a maximum surface temperature of the liquid jet is below a threshold temperature. By controlling the maximum surface temperature, vaporisation, and thus the amount of contaminations originating from the jet, may be reduced.

Growing community of inventors

Kista, Sweden

Björn Hansson