Temperature regulation system for MR devices with permanent magnet arrangements

A technology of temperature regulation and arrangement of structures, applied in the direction of using magnetic variable measurement, using nuclear magnetic resonance spectrum for measurement, measuring devices, etc., can solve problems such as thermal coupling and mechanical coupling that have not been discussed in detail

Pending Publication Date: 2022-03-29
BRUKER SWITZERLAND AG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The issue of thermal and mechanical coupling is not discussed in detail in the literature

Method used

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  • Temperature regulation system for MR devices with permanent magnet arrangements
  • Temperature regulation system for MR devices with permanent magnet arrangements
  • Temperature regulation system for MR devices with permanent magnet arrangements

Examples

Experimental program
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Embodiment Construction

[0087] Attached figure 1 to 6 respectively show a preferred embodiment of the temperature regulation system according to the invention in schematic diagrams of different details, while Figure 7 A conventional arrangement according to the prior art is shown.

[0088] Such a temperature regulation system for an NMR magnet system comprises: a permanent magnet arrangement 1 with a central air gap 2 for generating a uniform static magnetic field in the measurement volume inside the central air gap 2; HF pulse and NMR sample head 3 receiving the HF signal from the measurement sample 0; frequency detection included in the NMR sample head 3 and NMR frequency locking of the H0 coil for varying the magnitude of the static magnetic field; and in the central air gap 2 The shimming system 4 in is used to further homogenize the magnetic field in the measurement volume.

[0089] For reasons of position and for the sake of clarity, the H0 coil is not specifically shown in all the f...

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Abstract

The invention relates to a temperature regulating system for an NMR magnet system. The device comprises a permanent magnet arrangement (1) having a central air gap (2) for generating a uniform static magnetic field in a measurement volume inside the central air gap (2), an NMR sample head (3) for emitting HF pulses and receiving HF signals from a measurement sample (0), comprising frequency detection in the NMR sample head and HO coils for varying the amplitude of the static magnetic field, and a shimming system (4) in the central air gap for further homogenizing the magnetic field in the measurement volume, in which a first isolation chamber (5) surrounds the permanent magnet arrangement in a thermally shielded manner, the first isolation chamber comprises means (6) for adjusting the temperature T1 of the first isolation chamber, the shimming system, the HO coil and the NMR sample head are arranged in the central air gap outside the first isolation chamber, and at least one heat conductor (7) is arranged between the shimming system and the HO coil on the one hand and the permanent magnet arrangement on the other hand. Therefore, the field stability and the drifting-free property of the arrangement structure are obviously improved.

Description

technical field [0001] The invention relates to the temperature regulation of an NMR (Nuclear Magnetic Resonance) magnet system comprising a permanent magnet arrangement with a central air gap for generating a uniform static magnetic field in a measuring volume inside the central air gap, for emitting HF (High Frequency) NMR sample head that pulses and receives the HF signal from the measurement sample, frequency detection included in the NMR sample head and NMR frequency locking with the H0 coil for varying the magnitude of the static magnetic field, and in the central air gap for further homogenization Shimming system for the magnetic field in the measurement volume. [0002] Such a temperature-adjustable NMR magnet system is known, for example, from US 2011 / 0137589 A1 (=ref. [1]). Background technique [0003] In general terms, the present invention relates to the temperature regulation of permanent magnet systems, especially for benchtop NMR equipment. [0004] In a pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/38G01R33/383G01R33/46
CPCG01R33/3804G01R33/383G01R33/46G01R33/3875
Inventor N·弗里塔格F·黑尔宾R·梅斯特尔M·扎法隆
Owner BRUKER SWITZERLAND AG
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