【摘要】 报道了激光加热Cu靶和NaF靶发射的在1.2keY区,X射线转换效率的测量方法和实验结果。结果表明,在激光辐照功率密度为1×10¹³～1×10¹⁴W·cm^-2条件下,激光波长为1.06μm或0.53μm时,Cu等离子体发射的1.2keV区X射线的转换效率为NaF等离子体的4～5倍;对此两种等离子体,激光波长为0.53μm的X射线转换效率是波长为1.06μm的2倍左右。更多还原

【Abstract】 Measurement methods for and experimental results of Ⅹ-ray conversion efficiency in 1.2 keⅤ region from Cu and NaF plasma produced by 1.06μm or 0.53μm laser are presented. These results show that Ⅹ-ray conversion efficiency for Cu plasma is 4～5 times higher than that are presented NaF plasma with the laser intensity in 1×10¹³～1×10¹⁴ W. cm^-2 and wavclength being either 1.06 or 0.53μm. The Ⅹ-ray conversion efficiency produced by 0.53μm laser is about twice of that by 1.06μm laser.更多还原