首页>
外国专利>
Low power stimulated emission nuclear quadrupole resonance detection at multiple reference power levels
Low power stimulated emission nuclear quadrupole resonance detection at multiple reference power levels
展开▼
机译:在多个参考功率水平下的低功率受激发射核四极共振检测
展开▼
页面导航
摘要
著录项
相似文献
摘要
System and methods for detecting substances such as explosives via the nuclear quadrupole resonance effect. We observe that the nuclear quadrupole resonances of explosives located within a cavity portal involve continuous Rabi transitions which are nonlinear processes since stimulated emission occurs. In other words, where there are no resonances caused by the presence of an explosive, high average power and low average power measurements should be identical. However, when resonances are stimulated by the system, the difference between these two conditions can be compared to determine a correction to measurements made when a person located in the cavity has explosive material on their person, without the need for separate empty portal or elaborate calibration procedures.
展开▼