发明名称 |
APPARATUS AND METHOD FOR PRODUCING POLARISED VAPOUR-PHASE HELIUM-3, PARTICULARLY FOR NMR IMAGING |
摘要 |
<p>The present invention relates to an apparatus for producing polarized high-pressure vapor-phase helium-3, particularly for NMR imaging. The apparatus comprises a means for injecting helium-3 or a mixture of isotopes into an optical pumping cell (2), a means for liquefying the polarized gas from the optical pumping cell (2) and a tank (4) for storing the polarized liquid-phase helium-3, characterized in that the storage tank (4) is cooled to a temperature that may be set between a storage temperature Ta and an evaporation temperature Te, and communicates alternately with the optical pumping cell (2) and a high-pressure helium-3 gas discharge duct.</p> |
申请公布号 |
EP0880397(B1) |
申请公布日期 |
2002.11.20 |
申请号 |
EP19970904504 |
申请日期 |
1997.02.06 |
申请人 |
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS) |
发明人 |
NACHER, JEAN-PIERRE;TASTEVIN, GENEVIEVE |
分类号 |
A61K49/18;B01D59/34;F25J1/00;G01R33/28;(IPC1-7):B01D59/34;G01R33/26 |
主分类号 |
A61K49/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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