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Journal Articles

Demonstration of the high collection efficiency of a broadband Mo/Si multilayer mirror with a graded multilayer coating on an ellipsoidal substrate

Ichimaru, Satoshi*; Takenaka, Hisataka*; Namikawa, Kazumichi*; Gullikson, E. M.*; Maruyama, Momoko; Oku, Satoshi*

Review of Scientific Instruments, 86(9), p.093106_1 - 093106_7, 2015/09

 Times Cited Count:3 Percentile:80.02(Instruments & Instrumentation)

A graded and broadband Mo/Si multilayer mirror for EUV spectroscopy is demonstrated. This mirror has an average reflectivity profile of 16% in the wavelength region from 15 nm to 17 nm and an effective area of 1100 - 1500 mm$$^{2}$$. This reflectivity is about 4 times larger than that of a standard Mo/Si multilayer mirror on a 1 in. diameter substrate, showing that the mirror can be used for measuring EUV fluorescence at wavelengths in the region around 15 nm to 17 nm.

Journal Articles

Development of soft X-ray multilayer laminar-type plane gratings and varied-line-spacing spherical grating for flat-field spectrograph in the 1-8 keV region

Koike, Masato; Ishino, Masahiko; Imazono, Takashi; Sano, Kazuo*; Sasai, Hiroyuki*; Hatayama, Masatoshi*; Takenaka, Hisataka*; Heimann, P. A.*; Gullikson, E. M.*

Spectrochimica Acta, Part B, 64(8), p.756 - 760, 2009/08

 Times Cited Count:9 Percentile:53.27(Spectroscopy)

W/C and Co/SiO$$_{2}$$ multilayer laminar-type holographic plane gratings (groove density 1/1200 lines /mm) in the 1-8 keV region are developed. For the Co/SiO$$_{2}$$ grating the diffraction efficiencies of 0.41 and 0.47 at 4 and 6 keV, respectively, and for the W/C grating 0.38 at 8 keV are observed. Taking advantage of the outstanding high diffraction efficiencies into practical soft X-ray spectrographs a Mo/SiO$$_{2}$$ multilayer varied-line-spacing (VLS) laminar-type spherical grating (1/2400 lines /mm) is also developed for use with a flat field spectrograph in the region of 1.7 keV. For the Mo/SiO$$_{2}$$ multilayer grating the diffraction efficiencies of 0.05-0.20 at 0.9-1.8 keV are observed. The FWHM's of the measured line profiles of Hf-M$$alpha$$$$_{1}$$ (1644.6 eV), Si-K$$alpha$$$$_{1}$$ (1740.0 eV),and W-M$$alpha$$$$_{1}$$ (1775.4 eV) are 13.7 eV, 8.0 eV, and 8.7 eV, respectively. It shows the validity of multilayer lamina-type gratings in the region.

Journal Articles

Fabrication and evaluation of a multilayer laminar-type holographic grating and its application to a high efficiency grazing incidence monochromator for the 1-8 keV region

Koike, Masato; Ishino, Masahiko; Heimann, P. A.*; Imazono, Takashi; Takenaka, Hisataka*; Hatayama, Masatoshi*; Sasai, Hiroyuki*; Gullikson, E. M.*; Sano, Kazuo*

AIP Conference Proceedings 879, p.647 - 650, 2007/01

no abstracts in English

Journal Articles

Development of multilayer laminar-type diffraction gratings to achieve high diffraction efficiencies in the 1-8 keV energy region

Ishino, Masahiko; Heimann, P. A.*; Sasai, Hiroyuki*; Hatayama, Masatoshi*; Takenaka, Hisataka*; Sano, Kazuo*; Gullikson, E. M.*; Koike, Masato

Applied Optics, 45(26), p.6741 - 6745, 2006/09

 Times Cited Count:11 Percentile:50.37(Optics)

no abstracts in English

Journal Articles

Heat stability of Mo/Si multilayers inserted with compound layers

Ishino, Masahiko; Yoda, Osamu; Takenaka, Hisataka*; Sano, Kazuo*; Koike, Masato

Surface & Coatings Technology, 169-170(1-3), p.628 - 631, 2003/06

no abstracts in English

Journal Articles

Spatial coherence measurement of the 13.9nm Ni-like Ag soft X-ray laser pumped by a 1.5ps, 20J laser

Tang, H.; Daido, Hiroyuki; Kishimoto, Maki; Sukegawa, Kota*; Tai, R.; Mesesson, S.*; Tanaka, Momoko; Lu, P.; Kawachi, Tetsuya; Nagashima, Keisuke; et al.

Japanese Journal of Applied Physics, 42(2A), p.443 - 448, 2003/02

 Times Cited Count:14 Percentile:47.91(Physics, Applied)

no abstracts in English

Journal Articles

Total-electron-yield X-ray standing-wave measurements of multilayer X-ray mirrors for interface structure evaluation

Muramatsu, Yasuji; Takenaka, Hisataka*; Gullikson, E. M.*; Perera, R. C. C.*

Japanese Journal of Applied Physics, Part 1, 41(6B), p.4250 - 4252, 2002/06

 Times Cited Count:9 Percentile:60.54(Physics, Applied)

no abstracts in English

Journal Articles

New evaluation beamline for soft X-ray optical elements

Koike, Masato; Sano, Kazuo*; Yoda, Osamu; Harada, Yoshihisa*; Ishino, Masahiko; Moriya, Naoji*; Sasai, Hiroyuki*; Takenaka, Hisataka*; Gullikson, E. M.*; Mrowka, S.*; et al.

Review of Scientific Instruments, 73(3), p.1541 - 1544, 2002/03

 Times Cited Count:20 Percentile:29.88(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Near field imaging of the transient collisional excitation Ni-like Ag X-ray laser

Tanaka, Momoko; Kawachi, Tetsuya; Kado, Masataka; Hasegawa, Noboru; Sukegawa, Kota*; Lu, P.; Nagashima, Keisuke; Kato, Yoshiaki; Takenaka, Hisataka*

Surface Review and Letters, 9(1), p.641 - 644, 2002/02

 Times Cited Count:12 Percentile:45.15(Chemistry, Physical)

no abstracts in English

Journal Articles

Evaluation methods of interlayer-structure-distribution in multilayers by total-electron-yield X-ray standing wave measurements

Muramatsu, Yasuji; Takenaka, Hisataka*; Gullikson, E. M.*; Perera, R. C. C.*

X-sen Bunseki No Shimpo, 33, p.145 - 154, 2002/00

no abstracts in English

Journal Articles

Total-electron-yeild X-ray standing wave measurements of multilayer X-ray mirrors

Muramatsu, Yasuji; Takenaka, Hisataka*; Gullikson, E. M.*; Perera, R. C. C.*

Advanced Light Source Compendium of User Abstracts 2000, 10 Pages, 2001/07

no abstracts in English

Journal Articles

Gain profile of transient collisional excitation X-ray laser

Tanaka, Momoko; Kawachi, Tetsuya; Kado, Masataka; Hasegawa, Noboru; Sukegawa, Kota*; Nagashima, Akira; Kato, Yoshiaki; Takenaka, Hisataka*

Journal de Physique, IV, 11(Pr.2), p.55 - 57, 2001/07

no abstracts in English

Journal Articles

Soft X-ray reflectivity and structure evaluation of CoCr/C multilayer X-ray mirrors for spectral region around 6nm

Takenaka, Hisataka*; Nagai, Komei*; Ito, Hisashi*; Muramatsu, Yasuji; Kawamura, T.*; Gullikson, E. M.*; Perera, R. C. C.*

Nuclear Instruments and Methods in Physics Research A, 467-468(Part1), p.337 - 340, 2001/07

 Times Cited Count:8 Percentile:45.47(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Soft X-ray reflectivity and structure evaluation of Ni/C/Ti/C multilayer X-ray mirrors for water-window region

Takenaka, Hisataka*; Ito, Hisashi*; Nagai, Komei*; Muramatsu, Yasuji; Gullikson, E. M.*; Perera, R. C. C.*

Nuclear Instruments and Methods in Physics Research A, 467-468(Part1), p.341 - 344, 2001/07

 Times Cited Count:24 Percentile:15.09(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Chemical bonding state analysis of silicon carbide layers in Mo/SiC/Si multilayer mirrors by soft X-ray emission and absorption spectroscopy

Muramatsu, Yasuji; Takenaka, Hisataka*; Ueno, Yuko*; Gullikson, E. M.*; Perera, R. C. C.*

Applied Physics Letters, 77(17), p.2653 - 2655, 2000/10

 Times Cited Count:12 Percentile:49.33(Physics, Applied)

no abstracts in English

Oral presentation

Fabrication and evaluation of high efficiency W/C multilayered holographic grating

Koike, Masato; Ishino, Masahiko; Sano, Kazuo*; Takenaka, Hisataka*; Hatayama, Masatoshi*; Sasai, Hiroyuki*; Heimann, P. A.*; Gullikson, E. M.*

no journal, , 

no abstracts in English

Oral presentation

W/C multilayered laminar-type holographic grating and its application to a high efficiency grazing incidence monochromator for the 1-8 keV region

Koike, Masato; Ishino, Masahiko; Sano, Kazuo*; Takenaka, Hisataka*; Hatayama, Masatoshi*; Heimann, P. A.*; Gullikson, E. M.*; Sasai, Hiroyuki*

no journal, , 

no abstracts in English

Oral presentation

Fabrication and evaluation of a high efficiency W/C multilayered laminar-type holographic grating

Koike, Masato; Ishino, Masahiko; Takenaka, Hisataka*; Hatayama, Masatoshi*; Sano, Kazuo*; Heimann, P. A.*; Gullikson, E. M.*

no journal, , 

no abstracts in English

Oral presentation

Multilayer laminar-type diffraction gratings achieving high diffraction efficiencies in the 1-8 keV energy region

Ishino, Masahiko; Koike, Masato; Heimann, P. A.*; Sasai, Hiroyuki*; Hatayama, Masatoshi*; Takenaka, Hisataka*; Sano, Kazuo*; Gullikson, E. M.*

no journal, , 

no abstracts in English

Oral presentation

High efficiency multilayer laminar-type gratings and their application to a grazing incidence monochromator for the 1-8 keV region

Koike, Masato; Ishino, Masahiko; Heimann, P. A.*; Gullikson, E. M.*; Takenaka, Hisataka*; Hatayama, Masatoshi*; Sasai, Hiroyuki*; Sano, Kazuo*

no journal, , 

no abstracts in English

22 (Records 1-20 displayed on this page)