Investigation of soft X-ray emission from a gas puff target irradiated with a Nd:YAG laser
| Autor: | Henryk Fiedorowicz, Andrzej Bartnik, Masayuki Suzuki, Yoshiaki Kato, Mirosł Aw Szczurek, Noriyuki Sakaya, Takeyoshi Nakayama, Viliam Kmetik, Junichi Tajima, Hiroyuki Daido, Masai Matsumura, Thomas Wilhein |
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| Rok vydání: | 1999 |
| Předmět: |
010302 applied physics
Physics business.industry Astrophysics::High Energy Astrophysical Phenomena Nozzle Physics::Optics X-ray optics Plasma Grating Zone plate Laser 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention 010309 optics Optics law Nd:YAG laser 0103 physical sciences Electrical and Electronic Engineering Physical and Theoretical Chemistry business Spectrograph Astrophysics::Galaxy Astrophysics |
| Zdroj: | Optics Communications. 163:103-114 |
| ISSN: | 0030-4018 |
| Popis: | Experiments investigating soft X-ray emission in the 1–22 nm wavelength range from plasmas produced using a gas puff target irradiated with a Nd:YAG laser are described. Gas puff targets were created by pulsed injection of high-density gas through a nozzle. The use of the gas puff targets eliminates the production of debris associated with solid targets. Laser pulses of either 0.9 ns or 10 ns time duration with energies up to 0.7 J were used to produce plasmas. X-ray emissions from laser-produced gas puff plasmas were characterized for various gases. The spectral measurements of the soft X-ray emission were performed with the use of grating spectrographs equipped with the back-illuminated CCD camera. The source size was measured using the Fresnel zone plate imaging system and the grating spectrograph equipped with a slit placed perpendicularly to the dispersion direction. The obtained results would allow to develop an efficient and debrisless laser-produced X-ray source to be useful for applications in various fields. |
| Databáze: | OpenAIRE |
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