Laser Plasma Based e.m. Sources

One of the first simulation/theoretical study of the Ka emission dynamics was given by Reich et al. in 2000 [65]. In that work, Ka pulse durations down to aslOO fs were predicted to be achievable, by using thin foil targets of suitable thickness to minimize the fast electrons transit time inside the target. 

Concerning the Ka yield, the experimental works published in the last years showed a conversion efficiency of laser energy to Ka photons of 10 4-10-5, leading to a total number of 109-1010 Ka photons per joule of laser energy for each driving laser shot. As an example, Fig. 9.5 from [66] shows 

Ultrashort laser-plasma X-ray sources based upon the Ka emission process have been exploited since about 10 years ago to study some dynamical effects in simple systems, typically involving atomic motion, occurring on the timescale of 100fs. A complete review of such effects, in particular in 

One of the first proposed processes for obtaining electromagnetic radiation up to the X/y-ray range using laser beams was the Thomson scattering (see e.g., [88] and references therein). As it is known, this is the scattering of 

From an experimental viewpoint, Thomson scattering has been recently observed by using electron beams from a LIN AC [91] as well as from a laser-plasma source based on LWFA [92]. This latter observation, in particular, allows the availability of table-top, tunable sources of X/7-rays to be foreseen. 

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