The chemical compositions of the Ningqiang carbonaceous chondrite matrix and a dark rim are analysed with instrumental neutronactivationmethod.
采用仪器中子活化方法分析了宁强碳质球粒陨石基质及暗色边化学成份。
2
Yields ofneutron generators have been measured by the iron foil neutron activationmethod and a long counter separately. The methods and results are given.
用铁片活化法和长计数管测量中子发生器的中子产额,给出了测量方法和结果。
3
In the paragraph of the methodof using artificial tracer, there is the explanation about the tracer technology ofneutronactivation analysis and the methodof Lanthanide-DTPA tracer.