Laser Plasma Soft X-ray Source in the Water Window Based on Cryogenic Targets

• Amano Sho

  Laboratory of Advanced Science and Technology for Industry, University of Hyogo

Bibliographic Information

Other Title

• クライオターゲットによる「水の窓」レーザ生成プラズマ軟X線源
• クライオターゲット ニ ヨル 「 ミズ ノ マド 」 レーザ セイセイ プラズマナンXセン ゲン

Abstract

To generate continuously repetitive soft X-ray pulses in the water window from laser-produced plasmas, a one-dimensionally translating substrate system with a closed He gas cryostat that can continuously supply various cryogenic targets has been developed. The system was successfully operated at a lowest temperature of 15 K and at a maximum up-down speed of 12 mm/sec. Solid Ar and N₂ layers were formed, and the water window spectra from them were studied. The emission intensity from Ar was found to be about 8 times stronger than that from N₂. Developed laser plasma source demonstrated high average power of 140 mW in the water window soft X-ray, when a commercial Nd:YAG Q-switched laser was used to irradiate a solid Ar target with energy of 1 J at a repetition rate of 1 Hz. It can be used for various applications, including soft X-ray microscopy, in place of synchrotron facilities.

Journal

• IEEJ Transactions on Electronics, Information and Systems

  IEEJ Transactions on Electronics, Information and Systems 137 (3), 406-410, 2017

  The Institute of Electrical Engineers of Japan

Keywords

• water window
• laser plasma X-ray
• cryogenic target
• argon
• nitrogen
• high average power

Details

• CRID: 1390001204609538048
• NII Article ID: 130005398421
• NII Book ID: AN10065950
• DOI: 10.1541/ieejeiss.137.406
• ISSN: 13488155
• ISSN: 03854221
• NDL BIB ID: 028034551
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I028034551
• Web Site: https://www.jstage.jst.go.jp/article/ieejeiss/137/3/137_406/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed