K-ionization cross sections of Mo and Fe by electron impact were measured by detecting characteristic x-ray emitted by thin solid Him targets of known mass thickness with a Si(Li)detector.Rejection correction of a sub...K-ionization cross sections of Mo and Fe by electron impact were measured by detecting characteristic x-ray emitted by thin solid Him targets of known mass thickness with a Si(Li)detector.Rejection correction of a substrate was done by bipartition model of electron transport.The experrmenta.1 results are compared with theoretical calculation and empirical formula calculation.展开更多
L-shell partial production cross sections of L_(α)-,L_(β)-,L_(γ)-rays by electron impact were measured by observing the counts of x-rays from an impacted thin tungsten target.The total production cross sections and...L-shell partial production cross sections of L_(α)-,L_(β)-,L_(γ)-rays by electron impact were measured by observing the counts of x-rays from an impacted thin tungsten target.The total production cross sections and mean ionization cross sections were deduced from the measured results.The electron beam energy range was found to be 11-36 keV.The influence of electrons reflected by the backing on ionization cross sections has been corrected.The experimental results agree well with the theoretical predictions.展开更多
The cross sections for the <sup>165</sup>Ho（n.γ）<sup>166</sup>Ho<sup>?</sup> reaction have been measured rel-ative to the <sup>197</sup>Au（n.γ）<sup>198</s...The cross sections for the <sup>165</sup>Ho（n.γ）<sup>166</sup>Ho<sup>?</sup> reaction have been measured rel-ative to the <sup>197</sup>Au（n.γ）<sup>198</sup>Au reaction at neutron energies of 203,676 and 974 keV usingthe activation technique in combination With high resolution HPGe detector gamma rayspectroscopy Experimental data were given for the first time.展开更多
文摘K-ionization cross sections of Mo and Fe by electron impact were measured by detecting characteristic x-ray emitted by thin solid Him targets of known mass thickness with a Si(Li)detector.Rejection correction of a substrate was done by bipartition model of electron transport.The experrmenta.1 results are compared with theoretical calculation and empirical formula calculation.
基金Supported by the National Nuclear Industry Science Foundation of China under Grant No.Y7197CY404。
文摘L-shell partial production cross sections of L_(α)-,L_(β)-,L_(γ)-rays by electron impact were measured by observing the counts of x-rays from an impacted thin tungsten target.The total production cross sections and mean ionization cross sections were deduced from the measured results.The electron beam energy range was found to be 11-36 keV.The influence of electrons reflected by the backing on ionization cross sections has been corrected.The experimental results agree well with the theoretical predictions.
文摘The cross sections for the <sup>165</sup>Ho（n.γ）<sup>166</sup>Ho<sup>?</sup> reaction have been measured rel-ative to the <sup>197</sup>Au（n.γ）<sup>198</sup>Au reaction at neutron energies of 203,676 and 974 keV usingthe activation technique in combination With high resolution HPGe detector gamma rayspectroscopy Experimental data were given for the first time.
