Table 1. Intensity of secondary X-rays in different energy ranges vs of laser pulse energy and target.

Laser and target parameters	Laser energy growth	Intensity (W/cm2) in the energy range 1450–1850 eV	Growth of X-ray intensity vs laser energy	Intensity (W/cm2) in the energy range 2210–2730 eV	Growth of X-ray intensity vs laser energy	Total intensity (W/cm2) in the investigated energy ranges	Growth of X-ray intensity vs laser energy
Ti:Sa laser, E = 6.8 J, I ~ 1021 W/cm2, 6 μm Al foil	1.55 × E	1.2.0 × 1014	E4.2 (a08.4)	3.8 × 1013	E6.1 (a012.2)	1.6 × 1014	E4.6 (a09.2)
Ti:Sa laser, E = 6.8 J, I ~ 1021 W/cm2, 0.8 μm Al foil	1.55 × E	8.7 × 1013	E3.5 (a07.0)	1.5 × 1013	E4.0 (a08.0)	1.2 × 1014	E3.5 (a07.0)
Ti:Sa laser, E = 5.9 J, I ~ 0.86 × 1021 W/cm2, 0.8 μm Al foil	1.34 × E	6.7 × 1013	E4.3 (a08.6)	1.2 × 1013	E5.3 (a010.4)	7.9 × 1013	E4.4 (a08.8)
Ti:Sa laser, E = 4.4 J, I ~ 0.65 × 1020 W/cm2, 0.8 μm Al foil	E	1.9 × 1013	E	2.6 × 1012	E	2.2 × 1013	E