# US 12,191,134 B2 · Compact time-of-flight mass analyzer

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- Number: US 12,191,134 B2
- Document ID: US12191134B2
- Status: Granted
- Kind: B2
- Application number: 17/642,996
- Filed: 2020-10-22
- Published: 2022-10-27
- Granted: 2025-01-07
- Earliest claimed: 2019-10-25
- Assignees: Spacetek Technology AG
- Applicants: Spacetek Technology AG
- Inventors: Jürg Jost; Lukas Hofer
- Web page: https://patentgrep.com/patent/US12191134B2

## CPC

- H01J 49/401: {characterised by orthogonal acceleration, e.g. focusing or selecting the ions, pusher electrode}
- H01J 49/022: {Circuit arrangements, e.g. for generating deviation currents or voltages (regulating electric or magnetic variables in general, e.g. current, magnetic field G05F); Components associated with high voltage supply (high voltage supply per se H02M)}
- H01J 49/068: {Mounting, supporting, spacing, or insulating electrodes}
- H05K 1/0233: {Filters, inductors or a magnetic substance}
- H05K 1/181: associated with surface mounted components
- H05K 2201/09072: Hole or recess under component or special relationship between hole and component
- H05K 2201/10151: Sensor
- H01J: ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS (spark-gaps H01T; electric arc lamps H05B31/00; particle accelerators H05H)
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS

## Abstract

A set of acceleration electrodes for the acceleration of charged particles in a vacuum ion optical system, wherein each acceleration electrode comprises a conical section and at least an elongated leg protruding from the conical section, the elongated leg and any further elongated leg each being configured as a mechanical support and as an electrical connection between the conical section and an intended source of electric potential.

## Claims

### Claim 1

A set of acceleration electrodes for the acceleration of charged particles in a vacuum ion optical system, each acceleration electrode comprises:
a conical section; and
an elongated leg protruding from the conical section, the elongated leg configured as a mechanical support and as an electrical connection between the conical section and a source for an electric potential.

### Claim 2 (depends on 1)

The set of electrodes of claim 1, further comprising:
an insulating tube configured to house the acceleration electrodes in sequence,
wherein successive acceleration electrodes have legs of increasing length as compared to a preceding acceleration electrode in the sequence, and
wherein the increasing length of the legs is configured to position the conical sections at determined distances among each other to obtain desired electrical fields between successive acceleration electrodes thereby providing a concentric set of acceleration electrodes.

### Claim 3 (depends on 1)

The set of electrodes of claim 1, wherein the elongated legs of the respective ones of the set of acceleration electrodes are mounted on a same support, the same support acting as a reference plane.

### Claim 4 (depends on 3)

The set of electrodes of claim 3, wherein the support onto which the set of electrodes is mounted includes a printed circuit board.