发明名称 |
Particle analysis and sorting |
摘要 |
The invention relates to a method and apparatus for analysing samples for the presence of a particular element or isotope. In the method a pulsed neutron beam is directed at the sample. The beam is at an energy level chosen for the neutrons to interact with the element or isotope and produce a detectable gamma spectrum. A gamma detector detects the neutron-induced gamma spectrum. The detector is time-gated in such a manner that neutron-induced gamma radiation is detected while neutrons scattered by the sample are at least substantially excluded. Analysis of the spectrum enables a determination to be made as to whether a spectral peak characteristic of the particular element or isotope is present. The invention also provides apparatus for carrying out the method. |
申请公布号 |
ZA9406966(B) |
申请公布日期 |
1995.05.08 |
申请号 |
ZA19940006966 |
申请日期 |
1994.09.09 |
申请人 |
DE BEERS INDUSTRIAL DIAMOND DIVISION (PROPRIETARY) LIMITED |
发明人 |
ULF ANDERS STAFFAN TAPPER;JACEK GUZEK |
分类号 |
B01D;B07B;G01N15/10;G01N23/222 |
主分类号 |
B01D |
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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