排序方式: 共有15条查询结果,搜索用时 15 毫秒
1.
A study on the interactions of high intensity (- 10^16 W/cm^2) femtosecond laser pulses with rare gas clusters in a dense jet is performed. Energy absorption by Ar and Xe clusters is measured and it can be as high as 90%. Very energetic ions produced in the laser interaction with a dense cluster jet are detected by time-of-flight spectrometry and the maximum ion energy of Xe is up to 1.3 MeV. The average ion energies are found to increase with increasing cluster size and get saturated gradually. The average ion energies also show a strong directionality and the average ion energy in the direction parallel to the laser polarization vector is 40% higher than that perpendicular to it. The findings are discussed in terms of a model of charge-dependent ion acceleration. 相似文献
2.
3.
4.
详细介绍了对于取向硅钢高温退火隔离剂用氧化镁的性能要求,以及氧化镁涂液中的添加剂和添加元素对高温退火过程中硅酸镁玻璃膜底层的形成、二次再结晶和对最终成品磁性的影响。 相似文献
5.
7.
8.
9.
10.
针对京通线K288 500~K289 950段的病害整治工程,用数值模拟的方法分析整治后路基的稳定性,研究冻土热稳定性,对路基温度场进行系统全面的研究,对于指导冻土地区的道路设计理论和工程建设都将有着重大的意义. 相似文献