论文标题
尺寸对散布在Xenon簇上的电子引起的极化Bremsstrahlung
Size effect on polarization bremsstrahlung induced by electrons scattered on xenon clusters
论文作者
论文摘要
我们测量了普通和极化的Bremsstrahlung的绝对微分横截面的光谱分布，以散射在原子和无基质的Xenon的无基质纳米簇上的0.3-1.0 keV电子。簇是在超绝热膨胀到真空中的超音速气流中生产的。一种基于原子强度和簇发射区域强度的绝对测量的原始方法用于确定散射区域中的簇密度。散射在簇上产生的bremsstrahlung具有占主导地位横截面的极化成分。首次针对Xenon发现了群集大小对极化Bremsstrahlung的形成。
We measured spectral distribution of absolute differential cross section of both ordinary and polarization bremsstrahlung for 0.3-1.0 keV electrons scattered on atoms and substrate-free nanoclusters of xenon. Clusters were produced in a supersonic gas jet expanding adiabatically into a vacuum. An original method based on absolute measurements of intensity of the atom and cluster emission in the VUV and USX spectral regions was used to determine the cluster density in the scattering area. The bremsstrahlung arising from scattering on clusters had a polarization component which dominated the differential cross section. For the first time cluster size effect on the formation of the polarization bremsstrahlung was found for xenon.
