# US 2014/0191124 A1 · Arrangement for a removable ion-optical assembly in a mass spectrometer

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- Number: US 2014/0191124 A1
- Document ID: US20140191124A1
- Status: Published application
- Kind: A1
- Application number: 14/152,479
- Filed: 2014-01-10
- Published: 2014-07-10
- Earliest claimed: 2011-08-04
- Assignees: Bruker Daltonik GmbH
- Applicants: Bruker Daltonik GmbH
- Inventors: Ewgenij Kern; Jens Rebettge
- Web page: https://patentgrep.com/patent/US20140191124A1

## CPC

- H01J 49/02: Details
- H01J 49/068: {Mounting, supporting, spacing, or insulating electrodes}
- H01J: ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS (spark-gaps H01T; electric arc lamps H05B31/00; particle accelerators H05H)

## Abstract

Presented is a mass spectrometer comprising an ion path along which ions are transported between different sections of the mass spectrometer, and further comprising an arrangement with a receptacle being located along the ion path in the mass spectrometer and a complementary mount for carrying a removable ion-optical assembly, such as a carrier of electrodes for a MALDI ion source, wherein the mount can be removed from and reinserted into the receptacle in a plane approximately perpendicular to an ion path axis.

## Claims

### Claim 1

A mass spectrometer comprising an ion path along which ions are transported between different sections of the mass spectrometer, and further comprising an arrangement with a receptacle being located along the ion path in the mass spectrometer and a complementary mount for carrying a removable ion-optical assembly, wherein the mount can be removed from and reinserted into the receptacle in a plane approximately perpendicular to an ion path axis.

### Claim 2 (depends on 1)

A mass spectrometer according to claim 1, wherein the receptacle has an axis which coincides with the ion path axis.

### Claim 3 (depends on 2)

A mass spectrometer according to claim 2, wherein a shape of the receptacle is generally cylindrical.

### Claim 4 (depends on 1)

A mass spectrometer according to claim 1, wherein a shape of the mount is generally annular.

### Claim 5 (depends on 1)

The mass spectrometer according to claim 1, further comprising a lock for introducing and extracting the mount without breaking the vacuum.

### Claim 6 (depends on 5)

The mass spectrometer according to claim 5, wherein a lock gate of the lock opens and closes in a plane parallel to the ion path axis.

### Claim 7 (depends on 1)

The mass spectrometer according to claim 1, further comprising sprung contact pins which are supported on the receptacle and which touch appropriate counter-contacts on the mount in order to produce an electrical connection when the mount is inserted into the receptacle.

### Claim 8 (depends on 1)

A mass spectrometer according to claim 1, wherein the receptacle is located such in the mass spectrometer as to position the mount carrying an ion optical assembly having acceleration electrode(s) for a MALDI ion source.

### Claim 9 (depends on 8)

A mass spectrometer according to claim 8, wherein ions generated in the MALDI ion source and accelerated by the acceleration electrode(s) at the ion optical assembly are separated according to their respective masses using the time-of-flight principle.