公开(公告)号：US20240038520A1

公开(公告)日：2024-02-01

申请号：US18345744

申请日：2023-06-30

Applicant: AGILENT TECHNOLOGIES, INC.

Inventor： Kenneth R. NEWTON ,  Tong CHEN ,  Stephen ZANON

IPC: H01J49/06 ,  H01J49/04

CPC classification number: H01J49/066 ,  H01J49/0481

Abstract: In some examples, an ion funnel-based collision cell may include an ion funnel entrance section formed by a plurality of adjacently disposed entrance members. Each entrance member of at least one pair of the adjacently disposed entrance members may include a successively larger opening to form a tapered or profiled entrance for ions entering the ion funnel-based collision cell. An insulation material may be disposed adjacent to or in contact with each entrance member of the at least one pair of the adjacently disposed entrance members to prevent, outside of each successively larger opening, flow of gas between each entrance member of the at least one pair of the adjacently disposed entrance members.

公开(公告)号：US20230055007A1

公开(公告)日：2023-02-23

申请号：US17975493

申请日：2022-10-27

Applicant: AGILENT TECHNOLOGIES, INC.

Inventor： Tong CHEN ,  Gershon PERELMAN ,  Curt A. FLORY

IPC: H01J49/06

Abstract: An ion guide includes electrodes elongated along an axis from an entrance end to an exit end and spaced around the axis to surround an interior. The electrodes have polygonal shapes with inside surfaces disposed at a radius from the axis and having an electrode width tangential to a circle inscribed by the electrodes. An aspect ratio of the electrode width to the radius varies along the axis. The electrodes are configured to generate a two-dimensional RF electrical field in the interior having a multipole composition comprising one or more lower-order multipole components and one or more higher-order multipole components and varying along the axis in accordance with the varying aspect ratio, and having an RF voltage amplitude that varies along the axis.

公开(公告)号：US20240038521A1

公开(公告)日：2024-02-01

申请号：US18485951

申请日：2023-10-12

Applicant: AGILENT TECHNOLOGIES, INC.

Inventor： Tong CHEN ,  Curt A. Flory ,  Gershon Perelman

IPC: H01J49/06 ,  H01J37/12

CPC classification number: H01J49/067 ,  H01J37/12 ,  H01J2237/1215 ,  H01J2237/1534

Abstract: An electrostatic lens for transporting charged particles in an axial direction includes a first group of first electrodes configured to receive a first DC potential from a DC voltage source, and a second group of second electrodes configured to receive a second DC potential from the DC voltage source different from the first DC potential. The first electrodes are interdigitated with the second electrodes. The first group and/or the second group has a geometric feature that progressively varies along the axial direction. The lens generates an axial potential profile that progressively changes along the axial direction, and thereby reduces geometrical aberrations. The lens may be part of a charged particle processing apparatus such as, for example, a mass spectrometer or an electron microscope.

公开(公告)号：US20240038519A1

公开(公告)日：2024-02-01

申请号：US18345595

申请日：2023-06-30

Applicant: AGILENT TECHNOLOGIES, INC.

Inventor： Kenneth R. NEWTON ,  Tong CHEN ,  Stephen ZANON

IPC: H01J49/06

CPC classification number: H01J49/066 ,  H01J49/063

Abstract: In some examples, a multipole section-based ion funnel may include an ion funnel section formed by at least one pair of adjacently disposed members. A first member of the at least one pair of adjacently disposed members may include a pole structure. A second member of the at least one pair of adjacently disposed members may include a pole structure that is engageable with the pole structure of the first member to form a multipole structure.