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Laser polarization **Xe solid memory

A storage and solid-state technology, applied in interdisciplinary fields, to achieve the effects of easy portability, convenient control, and reduced loss

Active Publication Date: 2004-09-01
WUHAN INST OF PHYSICS & MATHEMATICS CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although, they are equally capable of solid-state storage, accumulation and sublimation laser polarization 129 Xe purpose, but can also only be used locally

Method used

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  • Laser polarization **Xe solid memory
  • Laser polarization **Xe solid memory

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Embodiment Construction

[0015] Below in conjunction with accompanying drawing, the present invention will be further described.

[0016] First describe the material, shape and structure of each part of the present invention:

[0017] a. Lifting platform 1 is made of non-magnetic material and is a height-adjustable platform.

[0018] b. Dewar 2 is a low temperature heat preservation device.

[0019] c. The double ring permanent magnet 3 is composed of two identical ring permanent magnets, and each ring permanent magnet is composed of 4 to 12 pieces of permanent magnets and is evenly adsorbed on the inner wall of the iron sleeve 4 .

[0020] d. The diameter of the iron sleeve 4 is smaller than that of the Dewar 2, and the upper and lower cylinders have no bottom surface. It is divided into upper and lower parts, which are connected by threads; the length of the iron sleeve 4 can be changed by rotating the threads.

[0021] e, liquid nitrogen 5 is liquefied nitrogen.

[0022] f. The glass casing 6 is...

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Abstract

The invention discloses a laser polarized 129Xe solid memory, composed of lift table, Dewar, dual circle permanent magnet, iron sleeve, liquid nitrogen, glass casing pipe, two safety vacuum valves and regulating frame, where the dual permanent magnet is set on the iron sleeve with adjustable length to adjust magnetic field strength; there is silicon coat on the inner wall of the glass casing pipe, which is used as its storage room and sample mixing room; the lift table goes up and down to change the temperature of laser polarized 129Xe. It has the advantages of adjustable magnetic field strength, small memory volume, convenient storage and transport, etc. It is mainly applied to magnetic resonance imaging, polarization transfer, medium- and micro- aperture measurement and structure research, enhancement of NMP signal on material surface, etc.

Description

Technical field: [0001] The invention relates to the interdisciplinary subject of laser spectroscopy and nuclear magnetic resonance. It is mainly used for magnetic resonance imaging of organisms and materials, polarization transfer enhanced nuclear spin polarization research of liquid and solid atoms and molecules, measurement of pore size and structure research of new mesoporous materials, NMR signal enhancement on the surface of materials, etc. . Background technique: [0002] The laser pumps the alkali metal atoms (Cs, Rb, K, Na) to make the electrons highly spin-polarized, the polarized alkali metal atoms and the non-polarized gas Xe atoms spin-exchange and collide, and the angular momentum transfer makes 129 Xe gas nuclei spin is highly polarized. Laser Polarization with Highly Non-Equilibrium Nuclear Spin Polarizability 129 Xe gas has broad application prospects in the fields of magnetic resonance imaging and surface enhancement of solid materials. while laser pola...

Claims

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Application Information

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IPC IPC(8): B01L5/00G01N24/00
Inventor 孙献平周欣罗军詹明生
Owner WUHAN INST OF PHYSICS & MATHEMATICS CHINESE ACADEMY OF SCI
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