Patents by Inventor Björn Hansson
Björn Hansson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11963286Abstract: 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.Type: GrantFiled: April 20, 2022Date of Patent: April 16, 2024Assignee: EXCILLUM ABInventors: Björn Hansson, Per Takman, Yuli Wang, Shiho Tanaka
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Patent number: 11910515Abstract: 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.Type: GrantFiled: May 7, 2020Date of Patent: February 20, 2024Assignee: EXCILLUM ABInventors: Ulf Lundström, Björn Hansson, Per Takman, Tomi Tuohimaa
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Patent number: 11742171Abstract: 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.Type: GrantFiled: July 2, 2020Date of Patent: August 29, 2023Assignee: EXCILLUM ABInventor: Björn Hansson
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Publication number: 20230238204Abstract: An X-ray imaging system, including a target; an electron beam source configured to provide an electron beam for interaction with the target to generate X-ray radiation; electron optics configured to alternately direct the electron beam to at least a first and a second location on the target; an X-ray detector array configured to receive X-ray radiation generated at the first and second locations on the target; a sample position region for receiving a sample to be exposed to generated X-ray radiation, the sample position region being located in a region where X-ray radiation generated at the first location overlaps with X-ray radiation generated at the second location; and a processing unit coupled to the X-ray detector array, the processing unit being configured to create an image of a sample, positioned in the sample position region, based on the X-ray radiation originating from the first location and from the second location.Type: ApplicationFiled: April 29, 2021Publication date: July 27, 2023Applicant: Excillum ABInventors: Björn HANSSON, Julius HÅLLSTEDT, Tomi TUOHIMAA, Ulf LUNDSTRÖM, Daniel NILSSON
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Patent number: 11651927Abstract: 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.Type: GrantFiled: December 17, 2019Date of Patent: May 16, 2023Assignee: EXCILLUM ABInventors: Tomi Tuohimaa, Ulf Lundström, Björn Hansson
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Publication number: 20220262591Abstract: 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.Type: ApplicationFiled: July 2, 2020Publication date: August 18, 2022Applicant: Excillum ABInventor: Björn HANSSON
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Publication number: 20220254595Abstract: 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.Type: ApplicationFiled: April 20, 2022Publication date: August 11, 2022Applicant: Excillum ABInventors: Björn HANSSON, Per TAKMAN, Yuli WANG, Shiho TANAKA
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Publication number: 20220230832Abstract: 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.Type: ApplicationFiled: May 7, 2020Publication date: July 21, 2022Applicant: Excillum ABInventors: Björn HANSSON, Per TAKMAN, Ulf LUNDSTRÖM, Tomi TUOHIMAA
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Publication number: 20220220951Abstract: 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.Type: ApplicationFiled: May 7, 2020Publication date: July 14, 2022Applicant: Excillum ABInventors: Ulf LUNDSTRÖM, Björn HANSSON, Per TAKMAN, Tomi TUOHIMAA
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Patent number: 11342154Abstract: 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.Type: GrantFiled: November 30, 2018Date of Patent: May 24, 2022Assignee: EXCILLUM ABInventors: Björn Hansson, Per Takman, Yuli Wang, Shiho Tanaka
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Patent number: 11257651Abstract: 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.Type: GrantFiled: June 24, 2019Date of Patent: February 22, 2022Assignee: EXCILLUM ABInventors: Per Takman, Ulf Lundström, Björn Hansson
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Publication number: 20220028645Abstract: 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.Type: ApplicationFiled: December 17, 2019Publication date: January 27, 2022Applicant: Excillum ABInventors: Tomi TUOHIMAA, Ulf LUNDSTRÖM, Björn HANSSON
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Publication number: 20210249215Abstract: 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.Type: ApplicationFiled: June 24, 2019Publication date: August 12, 2021Applicant: Excillum ABInventors: Per TAKMAN, Ulf LUNDSTRÖM, Björn HANSSON
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Patent number: 10971323Abstract: 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.Type: GrantFiled: December 15, 2017Date of Patent: April 6, 2021Assignee: EXCILLUM ABInventors: Björn Hansson, Andrii Sofiienko, Ulf Lundström
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Publication number: 20210027974Abstract: 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.Type: ApplicationFiled: November 30, 2018Publication date: January 28, 2021Applicant: Excillum ABInventors: Björn HANSSON, Per TAKMAN, Yuli WANG, Shiho TANAKA
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Patent number: 10818468Abstract: 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.Type: GrantFiled: March 1, 2017Date of Patent: October 27, 2020Assignee: EXCILLUM ABInventors: Björn Hansson, Tomi Tuohimaa, Göran Johansson
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Patent number: 7910954Abstract: An image sensor element is provided according to an embodiment which comprises image sensor element portions sensitive to at least partially different wavelength ranges.Type: GrantFiled: October 28, 2008Date of Patent: March 22, 2011Assignee: Sony Ericsson Mobile Communications ABInventor: Björn Hansson
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Patent number: 7239686Abstract: A method of producing a radiating plasma with an increased flux stability and uniformity is disclosed. The method comprises the steps of generating a primary target by urging a liquid under pressure through a nozzle; directing an energy pre-pulse onto the primary target to generate a secondary target in the form of a gas or plasma cloud; allowing the thus formed secondary target to expand for a predetermined period of time; and directing a main energy pulse onto the secondary target when the predetermined period of time has elapsed in order to produce a plasma radiating X-ray or EUV radiation. The pre-pulse has a beam waist size that is larger, in at least one dimension, than the corresponding dimension of the primary target.Type: GrantFiled: May 13, 2003Date of Patent: July 3, 2007Assignee: Jettec ABInventors: Magnus Berglund, Björn Hansson, Oscar Hemberg, Hans Hertz, Lars Rymell
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Patent number: 7228138Abstract: A message is transmitted from a networked GPS time server to a mobile station, the message includes GPS referenced time information indicating an elapsed GPS referenced time interval at the networked GPS time server between receiving a request for GPS time assistance at the networked GPS time server and transmitting the message to the mobile station.Type: GrantFiled: December 5, 2003Date of Patent: June 5, 2007Assignee: Sony Ericsson Mobile Communications ABInventors: Björn Hansson, Magnus Jendbro
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Patent number: 7176833Abstract: A portable electronic device, e.g., a mobile communications terminal, PDA or other handheld device, includes a GPS receiver and is configured to conduct non-GPS activities. The GPS receiver is transitioned out of a sleep state to attempt to acquire at least one GPS satellite signal responsive to a selected non-GPS activity of the device. For example, the GPS receiver may be transitioned out of the sleep state to attempt to acquire at least one GPS satellite signal responsive to a first non-GPS activity, and may be left in the sleep state notwithstanding occurrence of a second non-GPS activity. The first non-GPS activity may, for example, be associated with positioning of the device in a more conducive to reception of GPS satellite signals than the second non-GPS activity. For example, the first non-GPS activity may comprise an internet browsing activity, a video presentation activity, a gaming activity and/or a non-hands-free telephony activity.Type: GrantFiled: April 26, 2005Date of Patent: February 13, 2007Assignee: Sony Ericsson Mobile Communications ABInventors: Magnus Jendbro, Björn Hansson