发明名称 |
Scanning method and apparatus |
摘要 |
<p>A beam of gamma radiation from a source is emitted through a pipeline or process vessel to detect density changes. It is detected by an array of detectors which are each collimated to detect radiation over a narrow angle relative to the width of the emitted radiation beam. The scintillators have a depth away from the surface at which radiation is incident which is at least twice that of their thickness. The thickness may be 1 5 mm with other dimensions 10 - 80 mm depending on the source chosen. The source and detectors are linked by a support arm to form one unit capable of rotation around the pipeline or other structure.</p> |
申请公布号 |
GB2496736(A) |
申请公布日期 |
2013.05.22 |
申请号 |
GB20120019790 |
申请日期 |
2012.11.02 |
申请人 |
JOHNSON MATTHEY PUBLIC LIMITED COMPANY |
发明人 |
CHRISTOPHER BOWDON;PAUL DAVID FEATONBY;JAMES STEPHEN HOWSTON;PETER JACKSON (DECEASED);KENNETH JAMES;EMANUELE RONCHI |
分类号 |
G01T1/202;G01N9/24;G01T1/29 |
主分类号 |
G01T1/202 |
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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