NSFCNational Natural Science Foundation of China (NSFC) [11205243, 11474360, 91230205, 11375265, 11175255, 11405083]; Research Project of NUDT; EU FP7 EUCARD2
机构署名：
本校为其他机构
院系归属：
核科学技术学院
摘要：
It is demonstrated that bright femtosecond X-rays can be obtained by irradiating a moderate laser onto a helium micro-droplet. The laser ponderomotive force continuously sweeps electrons from the droplets and accelerates them forward. The electrons exposed in the outrunning laser field oscillate transversely and emit photons in the forward direction. The total flux of photons with energies above 1keV is as high as 109/shot which is about 10-fold enhancement compared with betatron oscillation under similar laser conditions. The maximum achieved ...
