公开(公告)号：US20250016907A1

公开(公告)日：2025-01-09

申请号：US18892410

申请日：2024-09-22

Applicant: B dot Medical Inc.

Inventor： Yoshiaki TAKI ,  Yuya TAKADA ,  Shun ISHIHARA

IPC: H05H7/04 ,  A61N5/10 ,  G21K1/093

Abstract: A charged particle beam deflection device includes a layered structure including a plurality of layers and having a hollow shape through which a charged particle beam passes, a first coil configured to deflect the charged particle beam in a first direction different from a travel direction of the charged particle beam, a second coil configured to deflect the charged particle beam in a second direction, and a pressing portion located on an outer peripheral surface of the layered structure and configured to press the outer peripheral surface from the exterior toward the interior. The plurality of layers includes a first coil support layer configured to support the first coil and a second coil support layer configured to support the second coil. The layered structure includes a gap, through which a cooling solvent can flow, between two adjacent layers among the plurality of layers.

公开(公告)号：US20240399173A1

公开(公告)日：2024-12-05

申请号：US18799351

申请日：2024-08-09

Applicant: Susan L. Michaud

Inventor： Susan L. Michaud

IPC: A61N5/10 ,  A61B6/03 ,  G21K1/087 ,  G21K1/093 ,  G21K5/04 ,  H01J35/14

Abstract: The invention comprises a method and apparatus for aligning a charged particle beam path for treating a tumor of a patient, comprising: a cancer therapy system comprising the charged particle beam path sequentially passing: from an injector, through a synchrotron, along a beam transport line, and through a nozzle; a first two-dimensional detector configured to measure a beam state of positively charged particles; and an integrated intelligent system configured to classify the beam state into a set of beam shape factors, the integrated intelligent system configured to correct the beam shape through application of a condition-action rule: (1) adjusting a first voltage delivered to a first magnet positioned in the beam line prior to the first two-dimensional detector and (2) altering the beam shape through application of a second voltage to a second magnet position in the beam line adjacent to the first magnet.

公开(公告)号：US12148543B2

公开(公告)日：2024-11-19

申请号：US17651840

申请日：2022-02-21

Applicant: Quantinuum LLC

Inventor： Jacob Ivan Johansen ,  Thomas Howard Loftus ,  Brian Vincent Estey

IPC: G21K1/00 ,  G06N10/40 ,  G21K1/06 ,  G21K1/093

Abstract: A loading assembly configured for providing atomic objects to an atomic object confinement apparatus is provided. The loading assembly comprises one or more ovens. Each oven (a) comprises a respective oven nozzle and (b) is configured to generate a respective atomic flux of a respective atomic species via the respective oven nozzle. The loading assembly comprises a mirror array and a magnet array configured to, when optical beams are provided to the mirror and magnet assembly, generate a two-dimensional magneto-optical trap (2D MOT). The 2D MOT is configured to generate a substantially collimated atomic beam from the respective atomic fluxes generated by the one or more ovens. The loading assembly further comprises a differential pumping tube defining a beam path. The differential pumping tube is configured to provide the substantially collimated atomic beam via the beam path. The respective oven nozzle of each of the one or more ovens is misaligned with the beam path and the 2D MOT is configured to provide the substantially collimated atomic beam in alignment with the beam path.

公开(公告)号：US12035456B2

公开(公告)日：2024-07-09

申请号：US18461176

申请日：2023-09-05

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION ,  RIKEN

Inventor： Hiromitsu Imai ,  Tomoya Akatsuka ,  Katsuya Oguri ,  Atsushi Ishizawa ,  Hideki Gotoh ,  Hidetoshi Katori ,  Masao Takamoto

IPC: H05H3/02 ,  G04F5/14 ,  G21K1/093

CPC classification number: H05H3/02 ,  G04F5/145 ,  G21K1/093

Abstract: A magneto-optical trap method including applying a magnetic field to an atom encapsulated in a vacuum vessel and having a nuclear spin of not less than 3/2 by using an anti-Helmholtz coil. Then generating a laser beam including a first laser beam detuned from a first resonance frequency when the atom transits from a total angular momentum quantum number F in a ground state to a total angular momentum quantum number F′=F+1 in an excited state, and a second laser beam detuned from a second resonance frequency when the atom transits from the total angular momentum quantum number F in the ground state to a total angular momentum quantum number F′=F−1 in the excited state.

公开(公告)号：US20240189012A1

公开(公告)日：2024-06-13

申请号：US18223924

申请日：2023-07-19

Applicant: Thomas J. SHEPERAK

Inventor： Thomas J. SHEPERAK

IPC: A61B18/04 ,  A61L2/00 ,  A61N1/44 ,  A61N5/10 ,  G21K1/093 ,  H05H1/46

CPC classification number: A61B18/042 ,  A61L2/007 ,  A61N1/44 ,  A61N5/10 ,  G21K1/093 ,  H05H1/46 ,  H05H1/4645 ,  A61N2005/1089 ,  H05H1/466 ,  H05H2240/20 ,  H05H2242/26 ,  H05H2245/34

Abstract: A method of generating an output gas, comprising plasmatizing an input gas with RF power propagating from a tip of an electrode to form an annular plasma sheath constrained by a tube with said RF power propagating within said annular plasma sheath; and forming said output gas as said annular plasma sheath propagates away from said tip of said electrode.

公开(公告)号：US12005274B2

公开(公告)日：2024-06-11

申请号：US17697430

申请日：2022-03-17

Applicant: Varian Medical Systems, Inc.

Inventor： James Clayton

IPC: A61N5/10 ,  G21K1/093 ,  G21K1/10 ,  H01J35/08 ,  H01J35/10 ,  H01J35/14 ,  H01J35/22 ,  H01J35/30 ,  H05G2/00 ,  H05H9/00 ,  H05H9/04

CPC classification number: A61N5/1077 ,  A61N5/1043 ,  A61N5/1045 ,  A61N5/1047 ,  A61N5/1081 ,  G21K1/093 ,  G21K1/10 ,  H01J35/10 ,  H01J35/116 ,  H01J35/153 ,  H01J35/22 ,  H01J35/30 ,  H05G2/00 ,  H05H9/048 ,  A61N2005/1089

Abstract: A radiotherapy system includes an X-ray target configured to convert an incident electron beam into a therapeutic X-ray beam, a purging magnet configured to redirect unwanted particles emitted from the X-ray target away from the therapeutic X-ray beam, and a particle collector configured to absorb the unwanted particles subsequent to redirection by the purging magnet. The particle collector may be configured to dissipate at least 50% of the energy of the incident electron beam.

公开(公告)号：US11918830B2

公开(公告)日：2024-03-05

申请号：US17382044

申请日：2021-07-21

Applicant: Susan L. Michaud ,  Daniel J. Raymond ,  Artur Teymurazyan ,  Ran Tu

Inventor： Susan L. Michaud ,  Daniel J. Raymond ,  Artur Teymurazyan ,  Ran Tu

IPC: A61N5/10 ,  A61B6/03 ,  G21K1/087 ,  G21K1/093 ,  G21K5/04 ,  H01J35/14

CPC classification number: A61N5/1077 ,  A61B6/03 ,  A61N5/1044 ,  A61N5/1067 ,  A61N5/1082 ,  G21K1/087 ,  G21K1/093 ,  G21K5/04 ,  A61N5/107 ,  A61N2005/1074 ,  A61N2005/1087 ,  A61N2005/1097 ,  H01J35/147

Abstract: The invention comprises a method and apparatus for tuning a charged particle beam path of a charged particle beam system used to treat a tumor of a patient, comprising the steps of: positioning a two-dimensional charged particle detector in a beam line downstream from a magnet pair; operating windings of the magnet pair at a first power level to generate a first magnetic field; measuring a beam position with the first two-dimensional charged particle detector; adjusting a correction magnetic field by driving voltage of a correction coil at a second power level, the second power level less than five percent of the first power level, where the first magnetic field and the correction magnetic field combine to yield an operational magnetic field; and the steps of measuring and adjusting the correction magnetic field changing the operational magnetic field to adjust a measured beam position toward a target beam position.

公开(公告)号：US20230422386A1

公开(公告)日：2023-12-28

申请号：US18461176

申请日：2023-09-05

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION ,  RIKEN

Inventor： Hiromitsu IMAI ,  Tomoyo AKATSUKA ,  Katsuya OGURI ,  Atsushi ISHIZAWA ,  Hideki GOTOH ,  Hidetoshi KATORI ,  Masao TAKAMOTO

IPC: H05H3/02 ,  G21K1/093 ,  G04F5/14

CPC classification number: H05H3/02 ,  G04F5/145 ,  G21K1/093

Abstract: A magneto-optical trap method including applying a magnetic field to an atom encapsulated in a vacuum vessel and having a nuclear spin of not less than 3/2 by using an anti-Helmholtz coil. Then generating a laser beam including a first laser beam detuned from a first resonance frequency when the atom transits from a total angular momentum quantum number F in a ground state to a total angular momentum quantum number F′=F+1 in an excited state, and a second laser beam detuned from a second resonance frequency when the atom transits from the total angular momentum quantum number F in the ground state to a total angular momentum quantum number F′=F−1 in the excited state.

公开(公告)号：US11742105B2

公开(公告)日：2023-08-29

申请号：US17603381

申请日：2020-06-30

Applicant: Hitachi, Ltd.

Inventor： Takahiro Yamada ,  Takuya Nomura ,  Seiji Soeda

IPC: G21K1/093 ,  A61N5/10 ,  H01F7/20 ,  H01F27/28 ,  H05H7/04

CPC classification number: G21K1/093 ,  A61N5/1078 ,  H01F7/20 ,  H01F27/28 ,  H05H7/04 ,  A61N2005/1087 ,  H05H2007/048 ,  H05H2277/11

Abstract: A scanning magnet that deflects a charged particle beam has a winding U provided with grooves SL1 and SL4 provided at facing positions. A passing direction of a conductive wire forming the winding U passes through the groove SL1 in a γ-axis positive direction, and passes through the groove SL4 in a γ-axis negative direction. The winding U has a loop path SL1-SL4 in which the groove SL1 is directed to the γ-axis positive direction, and the groove SL4 is directed to the γ-axis negative direction. When a current flows in the γ-axis positive direction in a winding section U+ disposed in the groove SL1, a current flows in the γ-axis negative direction in a winding section U− disposed in the groove SL4. A yoke, the winding U, a winding V, and a winding W have a 120° rotationally symmetric structure with respect to a central axis of the yoke.

公开(公告)号：US20220319730A1

公开(公告)日：2022-10-06

申请号：US17651840

申请日：2022-02-21

Applicant: Quantinuum LLC

Inventor： Jacob Ivan Johansen ,  Thomas Howard Loftus ,  Brian Vincent Estey

IPC: G21K1/00 ,  G06N10/40 ,  G21K1/06 ,  G21K1/093

Abstract: A loading assembly configured for providing atomic objects to an atomic object confinement apparatus is provided. The loading assembly comprises one or more ovens. Each oven (a) comprises a respective oven nozzle and (b) is configured to generate a respective atomic flux of a respective atomic species via the respective oven nozzle. The loading assembly comprises a mirror array and a magnet array configured to, when optical beams are provided to the mirror and magnet assembly, generate a two-dimensional magneto-optical trap (2D MOT). The 2D MOT is configured to generate a substantially collimated atomic beam from the respective atomic fluxes generated by the one or more ovens. The loading assembly further comprises a differential pumping tube defining a beam path. The differential pumping tube is configured to provide the substantially collimated atomic beam via the beam path. The respective oven nozzle of each of the one or more ovens is misaligned with the beam path and the 2D MOT is configured to provide the substantially collimated atomic beam in alignment with the beam path.