Titanium dioxide nanofiber-cotton targets for efficient multi-keV x-ray generation

Journal Article · Mon Aug 04 00:00:00 EDT 2008 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2969300· OSTI ID:21124055

Tanabe, Minoru; Nishimura, Hiroaki; Fujioka, Shinsuke; Nagai, Keiji; Yamamoto, Norimasa; Mima, Kunioki ^[1]; Gu, Zhong-Ze; Pan, Chao ^[2]; Girard, Frederic; Primout, Michel; Villette, Bruno; Brebion, Didier ^[3]; Fournier, Kevin B ^[4]; Fujishima, Akira ^[5]

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1. Institute of Laser Engineering, Osaka University, 2-6 Yamada-Oka, Suita, Osaka 565-0871 (Japan)
2. State Key Laboratory of Bioelectronics, Southeast University, Nanjing, Jiangsu 210096 (China)
3. Commissariat a l'Energie Atomique, DAM-Ile-de-France, Bruyeres-le-Chatel, 91297 Arpajon, Cedex (France)
4. Lawrence Livermore National Laboratory, P.O. Box 808, L-473, Livermore, California 94550 (United States)
5. Kanagawa Academy of Science and Technology, 3-2-1 Sakato, Takatsu-ku, Kawasaki 213-0012 (Japan)

Multi-keV x-ray generation from low-density (27{+-}7 mg/cm{sup 3}) nanofiber-cotton targets composed of titanium dioxide has been investigated. The cotton targets were heated volumetrically and supersonically to a peak electron temperature of 2.3 keV, which is optimal to yield Ti K-shell x rays. Considerable enhancement of conversion efficiency [(3.7{+-}0.5)%] from incident laser energy into Ti K-shell x rays (4-6 keV band) was attained in comparison with that [(1.4{+-}0.9)%] for a planar Ti-foil target.

• OSTI ID: 21124055
• Journal Information: Applied Physics Letters, Vol. 93, Issue 5; Other Information: DOI: 10.1063/1.2969300; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COTTON
ELECTRON TEMPERATURE
FOILS
K SHELL
LASERS
NANOSTRUCTURES
PLASMA DIAGNOSTICS
PLASMA PRODUCTION
TITANIUM OXIDES