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特征X射线的量子特性 被引量:1
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作者 胡刚毅 《连云港职业技术学院学报》 2008年第4期30-31,共2页
在论述X射线与特征X射线的产生的基础上,用量子理论分析了连续X射线谱与特征X射线谱产生的机理。结果表明,特征X射线的波长是由阳极靶物质的原子序数决定的;产生特征X射线的条件中必须包含一个临界激发电压。
关键词 x射线 x射线衍射(xrd xray diffraction) 特征x射线
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MICROSTRUCTURAL CHANGE OF YSZ-SUPPORTED YBaCuO SUPPERCONDUCTING FILM BY PROTON BEAM BOMBARDMENTS
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作者 王广厚 罗成林 +7 位作者 潘国强 颜石乾 韩民 杨森祖 李元 吉争鸣 孙志坚 吴培亨 《Nuclear Science and Techniques》 SCIE CAS CSCD 1990年第3期129-136,共8页
Microstructural change of YBaCuO film/YSZ substrate with and without proton irradiation has been studied by scanning electron microscope and X- ray diffraction techniques. Structural analysis has shown that conversion... Microstructural change of YBaCuO film/YSZ substrate with and without proton irradiation has been studied by scanning electron microscope and X- ray diffraction techniques. Structural analysis has shown that conversion from tetragonal to orthorhombic phases, reduction of nonsuperconducting phase and preferential rearrangement of crystal grains are all favorable to the improvement of superconductivity in the YBaCuO film supported by YSZ substrate by proton beam bombardment. 展开更多
关键词 YBACUO superconducting FILM PROTON irradiation Scanning electron MICROSCOPE x - ray diffraction Conversion of PHASES
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