公开(公告)号：US11910515B2

公开(公告)日：2024-02-20

申请号：US17595064

申请日：2020-05-07

Applicant: Excillum AB

Inventor： Ulf Lundström ,  Björn Hansson ,  Per Takman ,  Tomi Tuohimaa

IPC: H01J35/00 ,  H05G2/00 ,  F04B17/04 ,  F04B15/02 ,  F04B17/03 ,  H01J35/08

CPC classification number: H05G2/006 ,  F04B15/02 ,  F04B17/03 ,  F04B17/04 ,  H01J35/112 ,  H01J2235/082 ,  H01J2235/1026

Abstract: 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.

公开(公告)号：US11579318B2

公开(公告)日：2023-02-14

申请号：US17777747

申请日：2020-11-12

Applicant: Excillum AB

Inventor： Per Takman ,  Tomi Tuohimaa ,  Ulf Lundström

IPC: G01T1/34

Abstract: A method for characterizing an electron beam in a liquid metal jet X-ray source. The method includes providing the electron beam and directing the electron beam to an interaction region; providing an electron beam dump connected to ground potential for receiving the electron beam after it has traversed the interaction region; scanning the electron beam over at least part of the interaction region; measuring X-ray radiation generated by interaction between the electron beam and the electron beam dump during the scanning to obtain an X-ray profile; and calculating an electron beam characteristic based on the X-ray profile. Also a corresponding liquid metal jet X-ray source.

公开(公告)号：US11438996B2

公开(公告)日：2022-09-06

申请号：US16967151

申请日：2019-02-08

Applicant: Excillum AB

Inventor： Tomi Tuohimaa ,  Per Takman ,  Daniel Larsson

IPC: H05G2/00 ,  H05G1/54

Abstract: A method for protecting an X-ray source including: a liquid jet generator configured to form a liquid jet moving along a flow axis; an electron source configured to provide an electron beam interacting with the liquid jet to generate X-ray radiation; the method including: generating the liquid jet: monitoring a quality measure indicating a performance of the liquid jet; identifying, based on the quality measure, a malperformance of the liquid jet; and if said malperformance is identified, causing the X-ray source to enter a safe mode for protecting the X ray source. Further, to corresponding devices.

公开(公告)号：US11342154B2

公开(公告)日：2022-05-24

申请号：US16766935

申请日：2018-11-30

Applicant: Excillum AB

Inventor： Björn Hansson ,  Per Takman ,  Yuli Wang ,  Shiho Tanaka

IPC: H01J35/14 ,  H01J35/08

Abstract: 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.

公开(公告)号：US10784069B2

公开(公告)日：2020-09-22

申请号：US16340449

申请日：2017-10-19

Applicant: Excillum AB

Inventor： Tomi Tuohimaa ,  Per Takman ,  Andrii Sofiienko

IPC: H01J35/08 ,  H01J35/30 ,  H01J35/14 ,  H01J35/18 ,  H05G1/52

Abstract: A system and method for generating X-ray radiation. The system includes an electron source operable to generate an electron beam and an X-ray target for generating X-ray radiation upon interaction with the electron beam. The method includes moving the electron beam over an edge separating a first region and a second region of the X-ray target, wherein the first region and the second region have different capability to generate X-ray radiation upon interaction with the electron beam. The system allows for a lateral extension of the electron beam to be determined based on a change in a quantity indicative of the interaction between the electron beam and the first region and between the electron beam and the second region, and the movement of the electron beam.