High repetition rate laser-driven K α X-ray source utilizing melted metal target

• Published in: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 653; no. 1; pp. 58 - 61
• Main Authors: Ivanov, K.A., Uryupina, D.S., Volkov, R.V., Shkurinov, A.P., Ozheredov, I.A., Paskhalov, A.A., Eremin, N.V., Savel'ev, A.B.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 11.10.2011
• Subjects: Laser-driven plasma; Lifetime; Liquid metal target; X-ray source; Lifetime; X-ray source; Liquid metal target; Laser-driven plasma
• ISSN: 0168-9002; 1872-9576
• DOI: 10.1016/j.nima.2011.01.160

We report our experimental results on hard X-ray generation and stability parameters of a laser-driven plasma X-ray source using a melted gallium target irradiated by 2 mJ 100 fs laser pulse at 1 kHz repetition rate. Intense characteristic K-shell emission, including K α and K β, is observed against a background of broadband bremsstrahlung. High brightness and stability from pulse to pulse of hard X-ray source allow its use as a promising tool for different applications using table-top laser systems. ► Stable hard X-ray source operating at 1 kHz utilizing melted metal target is constructed. ► Self-healing of target surface avoids the necessity of permanent target movement. ► High brightness in 5–50 keV range is obtained. ► A way to increase the efficiency of X-ray source is proposed.