Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Masaru Takao"'
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 18, Iss 4, p 042802 (2015)
A novel technique using single-slit x-ray Fresnel diffraction has been developed to resolve μm-order electron beam sizes at the insertion devices (IDs) of photon beam lines. The new technique is promising for diagnostics of next-generation light sou
Externí odkaz:
https://doaj.org/article/17309a83d49a40b7b177a92f819a4f05
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 17, Iss 6, p 064001 (2014)
We have analytically calculated and measured the amplitude-dependent shift of the betatron oscillation center at the electron storage ring, NewSUBARU. The shift is due to nonzero average horizontal deflections at the normal sextupole magnets. The shi
Externí odkaz:
https://doaj.org/article/b107e85cec9443e38c45046e62762143
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 18, Iss 4, p 042802 (2015)
A novel technique using single-slit x-ray Fresnel diffraction has been developed to resolve $\ensuremath{\mu}\mathrm{m}$-order electron beam sizes at the insertion devices (IDs) of photon beam lines. The new technique is promising for diagnostics of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f757904262af170bf927d62d99901437
https://doaj.org/article/17309a83d49a40b7b177a92f819a4f05
https://doaj.org/article/17309a83d49a40b7b177a92f819a4f05
Autor:
Masaki Takata, Masazumi Shoji, Takeshi Nakatani, T. Kobayashi, Yoshihito Tanaka, Kouichi Soutome, Shinji Kohara, Motohiro Suzuki, Yoshio Suzuki, Akihiko Mizuno, Naoyasu Hosoda, Hideki Takebe, Hitoshi Tanaka, Takeshi Nakamura, Yukiko Taniuchi, Tsuyoshi Aoki, Kazuhiro Tamura, Takao Asaka, Hiroto Yonehara, Yukito Furukawa, Takemasa Masuda, Kazuo Kobayashi, Takashi Ohshima, Sakuo Matsui, Shin Daté, Tetsuhiko Yorita, Kenji Fukami, Masamichi Yoshioka, Masaya Oishi, Takashi Noda, Kenichi Yanagida, Mitsuhiro Masaki, Y. Yoda, Akihiro Yamashita, Tsutomu Taniuchi, Tetsuya Ishikawa, Sigeki Sasaki, Masatoshi Adachi, Akihisa Takeuchi, Toru Ohata, Noritaka Kumagai, Hirofumi Hanaki, Jun Schimizu, Shinsuke Suzuki, Ryotaro Tanaka, Masaru Takao, Takeo Takashima, Kouji Tsumaki, Alfred Q. R. Baron, Shirou Takano, Hiroaki Kimura, Haruo Ohkuma
Publikováno v:
Journal of Synchrotron Radiation. 13:378-391
Top-up operation allows SPring-8 to provide highly stable X-ray beams with arbitrary filling patterns. The implementation of top-up operation is described, with a focus on the simultaneous achievement of stability of stored current, beam orbit, purit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b694c289f74026585341fb6edff0b49
https://doi.org/10.1107/s0909049506022862
https://doi.org/10.1107/s0909049506022862
Autor:
Hitoshi Tanaka, M. Masaki, Kouichi Soutome, Masaru Takao, Noritaka Kumagai, Jun Schimizu, Haruo Ohkuma
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 486:521-538
We had installed four magnet-free long straight sections (LSSs) of 27 m in the SPring-8 storage ring in the summer 2000 in spite that a lattice modification breaks high symmetry of the ring optics. This is because by the potentiality of the LSSs we c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7740577390897407d9fa705e11089d0a
https://doi.org/10.1016/s0168-9002(01)02153-2
https://doi.org/10.1016/s0168-9002(01)02153-2
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 17, Iss 6, p 064001 (2014)
We have analytically calculated and measured the amplitude-dependent shift of the betatron oscillation center at the electron storage ring, NewSUBARU. The shift is due to nonzero average horizontal deflections at the normal sextupole magnets. The shi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35eac9392ff36ccb1e1543843c417faa
https://doi.org/10.1103/physrevstab.17.064001
https://doi.org/10.1103/physrevstab.17.064001
Autor:
Masaru Takao, Togo Kudo, M. Takeuchi, K. Satoh, T. Bizen, Akitaka Yoshigoe, H. Ohkuma, Y. Hiramatsu, Tomohiro Matsushita, Hideki Aoyagi, Y. Miyahara, Akinari Yokoya, T. Nakatani, Yuichi Saitoh, Hitoshi Tanaka, Akane Agui, Shigemi Sasaki, S. Wu, T. Shimada
Publikováno v:
Review of Scientific Instruments. 72:3191-3197
This article presents the first operation of the magnetic circular dichroism (MCD) measurement system with periodic photon-helicity switching. The measurements were performed at the newly constructed soft x-ray beamline—BL23SU— at the third-gener
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::250ecd4532f7e12041965c94f2d83180
https://doi.org/10.1063/1.1382635
https://doi.org/10.1063/1.1382635
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 459:66-77
In general, a closed orbit distortion is observed as the sum of beam orbit and various noises such as beam position monitor (BPM) setting errors, BPM's electric response errors, etc. In order to obtain a beam with high performance in a low emittance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85f4d5cd5f6dd7f9d8bcf93b6f6655ca
https://doi.org/10.1016/s0168-9002(00)00998-0
https://doi.org/10.1016/s0168-9002(00)00998-0
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 431:396-408
We provide a perturbative formulation of nonlinear dispersion for particle motion in storage rings without linearizing the kinematic term and give recursion expressions for higher-order terms up to the fourth order. As an example, the nonlinear dispe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::beed064de1436d482ff6e79871549eb3
https://doi.org/10.1016/s0168-9002(99)00338-1
https://doi.org/10.1016/s0168-9002(99)00338-1
Autor:
Masaru Takao, I. S. Voronchev, A. V. Kiselev, N. Kumagai, S. Daté, H. Kamitsubo, A. Ando, G.N. Kulipanov, Kouichi Soutome, Y. Miyahara, T. Nakamura, A.N. Skrinsky, N.A. Mezentsev, V. N. Belyaev, Hitoshi Tanaka
Publikováno v:
Journal of Synchrotron Radiation. 3:201-206
A low-energy positron beam is a unique probe of Fermi surfaces, defects, surfaces and interfaces. In high-energy electron and positron storage rings (E > 6 GeV) it is possible to generate intense synchrotron radiation with 1-3 MeV photons by installi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18f7da71327fd0b3ebb1424d18f37861
https://doi.org/10.1107/s090904959600605x
https://doi.org/10.1107/s090904959600605x