发明授权
- 专利标题： Methods and apparatus for NQR testing
- 专利标题（中）： NQR测试方法和设备
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申请号： US162002申请日： 1994-03-28
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公开(公告)号： US5814989A公开(公告)日： 1998-09-29
- 发明人: John Alec Syndney Smith , Julian David Shaw , Martin Blanz
- 申请人： John Alec Syndney Smith , Julian David Shaw , Martin Blanz
- 申请人地址： GB2 London
- 专利权人： British Technology Group Limited
- 当前专利权人： British Technology Group Limited
- 当前专利权人地址： GB2 London
- 优先权： GBX9112290 19910607
- 主分类号： A61B5/055
- IPC分类号： A61B5/055 ; G01K3/00 ; G01N24/00 ; G01R33/38 ; G01R33/385 ; G01R33/44 ; G01R33/48 ; G01V3/14 ; G01V3/00
摘要：
A method and apparatus for imaging within a sample space an object containing quadrupolar nuclei comprises irradiating the object to excite nuclear quadrupole resonance, applying to the object a magnetic field gradient having a profile Bo(x) such that the square of the profile Bo(x))2 varies linearly with distance (x), detecting resonance response signals from the nuclei, and deriving an image from the response signals. A method of and apparatus for nuclear quadrupole resonance testing an object, and a method of and apparatus for detecting the presence of a particular substance containing a given species of quadrupolar nucleus, are also disclosed.
公开/授权文献
- US6083772A Method of mounting a power semiconductor die on a substrate 公开/授权日：2000-07-04