Characterization and optimization of a laser-produced x-ray source with a gas puff target

Henryk Fiedorowicz; Andrzej Bartnik; Roman Jarocki; Rafal Rakowski; Miroslaw Szczurek; Hiroyuki Daido; Noriyuki Sakaya; Masayuki Suzuki; Hideo Nagatomo; Huajing Tang; Il Woo Choi; Yusuke Tohyama; Susumu Yamagami; Takeyoshi Nakayama

doi:10.1117/12.371110

23 November 1999 Characterization and optimization of a laser-produced x-ray source with a gas puff target

Henryk Fiedorowicz, Andrzej Bartnik, Roman Jarocki, Rafal Rakowski, Miroslaw Szczurek, Hiroyuki Daido, Noriyuki Sakaya, Masayuki Suzuki, Hideo Nagatomo, Huajing Tang, Il Woo Choi, Yusuke Tohyama, Susumu Yamagami, Takeyoshi Nakayama

Author Affiliations +

Proceedings Volume 3767, EUV, X-Ray, and Neutron Optics and Sources; (1999) https://doi.org/10.1117/12.371110
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

Soft x-ray emission from plasmas produced using a laser- irradiated gas puff target have been investigated. The use of the gas puff targets, created by pulsed injection of high- density gas from a solenoid valve through a nozzle, eliminates the production of debris associated with solid targets. To improve the gas puff target two approaches have been used: (1) cooling of the valve with liquid nitrogen to increase condensation of gas and (2) formation of the target by injection of gas in gas surrounding the nozzle output using the double nozzle setup. The gas puff targets created with these two approaches were characterized with x-ray backlighting method using laser-produced x-ray source. Laser pulses of 1 ns time duration with energy up to 10 J from a Nd:glass laser and of either 0.9 ns or 10 ns time duration with energies up to 0.7 J from a Nd:YAG laser were used to produce plasmas. Emissions in the soft x-ray range from laser- produced gas puff plasmas were studied for various gases. Significant improvement of x-ray production from the double stream gas puff target has been observed.

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Henryk Fiedorowicz, Henryk Fiedorowicz, Andrzej Bartnik, Andrzej Bartnik, Roman Jarocki, Roman Jarocki, Rafal Rakowski, Rafal Rakowski, Miroslaw Szczurek, Miroslaw Szczurek, Hiroyuki Daido, Hiroyuki Daido, Noriyuki Sakaya, Noriyuki Sakaya, Masayuki Suzuki, Masayuki Suzuki, Hideo Nagatomo, Hideo Nagatomo, Huajing Tang, Huajing Tang, Il Woo Choi, Il Woo Choi, Yusuke Tohyama, Yusuke Tohyama, Susumu Yamagami, Susumu Yamagami, Takeyoshi Nakayama, Takeyoshi Nakayama, "Characterization and optimization of a laser-produced x-ray source with a gas puff target", Proc. SPIE 3767, EUV, X-Ray, and Neutron Optics and Sources, (23 November 1999); doi: 10.1117/12.371110; https://doi.org/10.1117/12.371110

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