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Journal Articles

High-precision measurement of the wavelength of a nickel-like silver X-ray laser

Hasegawa, Noboru; Kawachi, Tetsuya; Utsumi, Takayuki*; Sasaki, Akira; Tanaka, Momoko; Kado, Masataka; Sukegawa, Kota*; Lu, P.; Kishimoto, Maki; Tai, R.; et al.

Japanese Journal of Applied Physics, Part 1, 43(5A), p.2519 - 2522, 2004/05

 Times Cited Count:12 Percentile:46.47(Physics, Applied)

We conducted high-precision measurements of the wavelength of the nickel-like silver X-ray laser in order to compare it with a theoretical wavelength. The reasons for using this laser are as follows: First, this laser line is in the wavelength region of Mo/Si multi-layer mirrors; therefore, this laser line is important for applications. Second, the strongamplification of this laser line has been obtained in our previous work, and the higher order line in the spectra obtained by our spectrometer can be used. Third, since silver is arelatively low-z material (z = 47), this wavelength is a ideal benchmark of atomic structural codes such as the Multiconfiguration Dirac-Fock (MCDF) code. The wavelength of the nickel-like silver X-ray laser was determined to be 13.887 nm. The comparison with MCDF codes shows that the present experimental result can work as a good benchmark of the accuracy of the codes.

Journal Articles

Development of the large-scale fine and non-thermal manufacturing technology using femtosecond, highly- efficient, and high power free-electron laser

Minehara, Eisuke

Proceedings of 28th Linear Accelerator Meeting in Japan, p.402 - 403, 2003/08

The JAERI superconducting RF linac-based free-electron laser has successfully generated 6% highly-efficient, a few hundreds of femtosecond, and several kW class high power FEL light several years ago. In the presentation, it will be reprted that the JAERI plans to develop the higher power free-electron lasers and their application to large-scale non-thermal precision manufacturing technology.

Journal Articles

Development of portable ESR spectrometer as a reader for alanine dosimeters

Kojima, Takuji; Haruyama, Yasuyuki; Tachibana, Hiroyuki; Tanaka, Ryuichi; Okamoto, Jiro; *; *

Applied Radiation and Isotopes, 44(1-2), p.361 - 365, 1993/00

 Times Cited Count:5 Percentile:51.49(Chemistry, Inorganic & Nuclear)

no abstracts in English

Journal Articles

Thin film alanine-polyethylene dosimeter

Kojima, Takuji; H.L.A.Ranjith*; Haruyama, Yasuyuki; Kashiwazaki, Shigeru*; Tanaka, Ryuichi

Applied Radiation and Isotopes, 44(1-2), p.41 - 45, 1993/00

 Times Cited Count:12 Percentile:75.41(Chemistry, Inorganic & Nuclear)

no abstracts in English

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