Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Hisashi Kobayakawa"'
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 551:208-217
The spatial distribution of the effective dose of photons, electrons and positrons caused by beam loss around a small electron storage ring in a synchrotron radiation source is calculated. We propose a simple formula applicable to calculate the effec
Publikováno v:
Journal of the Japan Institute of Metals. 69:392-398
Autor:
Hisashi Kobayakawa, Tsutomu Nakanishi, Harue Sugiyama, Yoshifumi Takashima, Ken-ichi Naniwa, K. Tamagaki, Ryosuke Sakai
Publikováno v:
Journal of the Japan Institute of Metals. 69:493-496
Molybdenum, in many cases, is chosen as a substrate of cesium telluride thin film photocathode for a radio frequency electron gun (RF-Gun), which shows high performance. Therefore, in this study, we chose molybdenum as a substrate for cesium tellurid
Autor:
Masahiro Yamamoto, Masakazu Yoshioka, F. Furuta, Shoji Okumi, Kazuaki Togawa, T. Nishitani, S. Kurahashi, J. Watanabe, Tsutomu Nakanishi, Hisashi Kobayakawa, K. Asano, C. Suzuki, K. Wada, T. Gotou, Hiroshi Matsumoto
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 462:337-348
The current from copper electrodes treated by four different types of surface cleaning procedures was measured under DC high field gradient condition. The best results were obtained by using the electrode rinsed with ultra-pure water after diamond tu
Autor:
Masaaki Izawa, Hisashi Kobayakawa, Shogo Sakanaka, T. Kiuchi, Masaki Kobayashi, Yoichiro Hori, Shuichi Tokumoto
Publikováno v:
Review of Scientific Instruments. 63:363-366
The loss parameters of the ducts in the Photon Factory (PF) storage ring were evaluated using the wire method and the code tbci. Both the measurement and the calculation were done for different bunch length σ ranging from 25 to 80 ps. The ring imped
Autor:
Hisashi Kobayakawa
Publikováno v:
Review of Scientific Instruments. 63:509-512
The Photon Factory (PF) storage ring is a dedicated synchrotron radiation source. The stability of photon beams is the most important subject regarding such sources, since accurate positioning is especially required for sharply pointing undulator bea
Publikováno v:
Encyclopedia of Applied Physics
The article contains sections titled: 1 Introduction 2 Brief History 3 General Principles 3.1 Operating Principle 3.2 Particle Motion in a Circular Accelerator 3.3 Influence of Field Errors and Working Point on Resonance Diagram 3.4 Phase Stability 3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::090ea1a32639003badf22ee9f0a43257
https://doi.org/10.1002/3527600434.eap490.pub2
https://doi.org/10.1002/3527600434.eap490.pub2
Autor:
Hisashi Kobayakawa, Gwyn P. Williams
Publikováno v:
Synchrotron Radiation News. 3:2-5
Autor:
Koujun Yamashita, Arao Nakamura, Keisuke Tanaka, Kazuhiko Seki, Shinzo Morita, Yoshikazu Takeda, Kazuo Soda, Shinya Yagi, Makoto Sakata, Masaru Hori, Takashi Yamane, Tsunehiro Takeuchi, Yoshifumi Takashima, Atsuo Suzuki, Koichi Akimoto, Hisashi Kobayakawa, Uichiro Mizutani, Masahiro Katoh
Publikováno v:
AIP Conference Proceedings.
Nagoya University has a project to construct a new synchrotron light facility, called Photo-Science Nanofactory, to develop a wide range research on basic science, industrial applications, life science and environmental engineering in collaboration w
Autor:
Kazuaki Togawa, Osamu Watanabe, K. Yasui, Makoto Kuwahara, Y. Takeda, M. Miyamoto, Takeo Nishitani, Yoshifumi Takashima, Tsutomu Nakanishi, K. Naniwa, F. Furuta, Hisashi Kobayakawa, Masahiro Yamamoto, Naoto Yamamoto, S. Okumi
Publikováno v:
Spin 2004.
The strained-layer superlattice structures have been exhibiting the most promising performance as a photocathode for the polarized electron source (PES). In our experiments, the GaAs-GaAsP photocathode achieved maximum polarization of 92f6% with quan