Characterization of Energetic Protons Generated in the ShenGuang-II UP Petawatt Laser Interactions with Foil Targets

Table 1

Energy-resolved position of the virtual source in front of the target ν and virtual source size S_virtual (for VULCAN and 100TW-LULI lasers) or 2σ of ESF value (for SG-II UP PW) for three different laser systems. The results from VULCAN and 100TW-LULI lasers by Nürnberg et al. [26] are used for comparison.

Laser system	E (MeV)	ν (μm)	Svirtual or 2σ of ESF (μm)
SG-II UP PW	6.4	418	19.2
	7.9	392	22.9
	9.1	381	13.7
	10.6	306	12.4
	12.0	268	10.2
	13.3	231	10.7
	15.2	179	11.0
	16.8	151	13.8
	18.9	89	17.9
VULCAN	6.2	372	12.1
	17.4	173	11.0
100TW-LULI	4.7	75	5.4
	9.8	31	1.4
	13.3	31	0.4