Zobrazeno 1 - 10
of 105
pro vyhledávání: '"Norihiro Sei"'
Autor:
Norihiro Sei, Takeshi Sakai, Yasushi Hayakawa, Yoske Sumitomo, Kyoko Nogami, Toshinari Tanaka, Ken Hayakawa
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Abstract A coupling device, which can extract coherent edge radiation (CER) from an optical cavity for a free-electron laser (FEL) without damaging the FEL due to diffraction loss, was developed at Nihon University. We successfully observed the CER b
Externí odkaz:
https://doaj.org/article/f725251a047140bba03c5cff8bfa8d37
Autor:
Yusuke Kawashima, Suemitsu Masaaki, Kayo Kuyama, Takeshi Sakai, Yasushi Hayakawa, Takashi Kaneda, Norihiro Sei
Publikováno v:
Applied Sciences, Vol 12, Iss 4, p 2229 (2022)
We investigated the transmission characteristics of formalin fixed human liver samples in which normal liver tissue and malignant liver tumor were mixed using terahertz (THz) coherent synchrotron radiation at an infrared free-electron laser (FEL) fac
Externí odkaz:
https://doaj.org/article/fba61c8801874c48874fa26d60be1820
Publikováno v:
Applied Sciences, Vol 12, Iss 2, p 626 (2022)
Spectra of coherent edge radiation (CER) were observed at the S-band linac facility of Kyoto University Free Electron Laser. A local maximum was observed in the CER spectrum on-crest operation of the radio frequency (RF) field. As the phase of the RF
Externí odkaz:
https://doaj.org/article/ad91716abde54c439317af917b5d732c
Publikováno v:
Condensed Matter, Vol 5, Iss 2, p 34 (2020)
This study presents a novel technology to measure electron bunch length with a high time resolution by measuring coherent synchrotron radiation using a narrow-band detector at Laboratory for Electron Beam Research and Application (LEBRA)—an S-band
Externí odkaz:
https://doaj.org/article/095686a782d345bfa3317a0ee92b6cc0
Publikováno v:
Applied Sciences, Vol 10, Iss 4, p 1418 (2020)
We observed multiple-collision free-electron laser (FEL)-Compton backscattering in which a multi-bunch electron beam makes head-on collisions with multi-pulse FELs in an optical cavity, using an infrared FEL system in the storage ring NIJI-IV. It was
Externí odkaz:
https://doaj.org/article/61bff2e590ed4d48acf5225593ed526e
Autor:
Norihiro Sei, Hidetoshi Kato, T. Shishido, Hiroshi Ogawa, Takeshi Fujiwara, Kazuro Furukawa, Nagayasu Oshima, Daisuke Satoh, Noriyosu Hayashizaki, Koichi Kino, Yo Tomota, Akira Watazu, Brian E. O'Rourke, Takemi Muroga, Ryoichi Suzuki, Koji Michishio, Hiroyuki Toyokawa, Kazuyuki Nigorikawa, Michihiro Furusaka, Ryunosuke Kuroda, Masahito Tanaka, Takashi Obina
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 464:41-44
A new electron accelerator has been designed and is now under construction at AIST, Tsukuba, Japan. The accelerator will be used to produce a pulsed neutron beam for materials analysis. The design maximizes the yield of slow neutrons with high pulse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b923461ccf1198dab330f3b67ed7eec5
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100822053
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100822053
Publikováno v:
Physica Scripta. 98:025510
This study reported the longitudinal compression and extension of an electron bunch by free electron laser (FEL) interaction. By observing coherent edge radiation generated by an FEL facility at Kyoto University, which has the highest extraction effi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28db6f3db99f41ccf2a9048ce381265a
https://doi.org/10.1088/1402-4896/acb253
https://doi.org/10.1088/1402-4896/acb253
Autor:
Akira Watazu, Koichi Kino, Nagayasu Oshima, Ryunosuke Kuroda, Hiroshi Ogawa, Brian E. O'Rourke, Ryoichi Suzuki, Noriyosu Hayashizaki, Masahito Tanaka, Daisuke Satoh, Hiroyuki Toyokawa, Koji Michishio, Takeshi Fujiwara, Norihiro Sei, T. Shishido, Takemi Muroga, Michihiro Furusaka
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 927:407-418
We have designed and been constructing a compact accelerator-driven neutron facility for Bragg edge transmission imaging of structural materials to obtain position dependent crystallographic information. In order to combine a high neutron wavelength
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96eac20c355b51f62fff6c6c813c3a06
https://doi.org/10.1016/j.nima.2019.02.062
https://doi.org/10.1016/j.nima.2019.02.062
Autor:
Yoske Sumitomo, Yasushi Hayakawa, Norihiro Sei, Toshinari Tanaka, Takeshi Sakai, Kyoko Nogami, Ken Hayakawa
Publikováno v:
Scientific Reports
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
A coupling device, which can extract coherent edge radiation (CER) from an optical cavity for a free-electron laser (FEL) without damaging the FEL due to diffraction loss, was developed at Nihon University. We successfully observed the CER beam with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3920ebda23da3e1257414cd3bbdd085a
https://doi.org/10.1038/s41598-021-82898-7
https://doi.org/10.1038/s41598-021-82898-7
Autor:
Noriyosu Hayashizaki, Takemi Muroga, Norihiro Sei, Michihiro Furusaka, Ryunosuke Kuroda, Takashi Obina, Kazuro Furukawa, Hiroyuki Toyokawa, Masahito Tanaka, Yo Tomota, Brian E. O'Rourke, Hiroshi Ogawa, Kazuyuki Nigorikawa, Hidetoshi Kato, T. Shishido, Nagayasu Oshima, Koji Michishio, Ryoichi Suzuki, Daisuke Satoh, Akira Watazu, Koichi Kino, Takeshi Fujiwara
Publikováno v:
EPJ Web of Conferences, Vol 231, p 01002 (2020)
We have constructed a compact accelerator-based neutron facility at the National Institute of Advanced Industrial Science and Technology (AIST) in Japan aiming at development of structural materials of transportation vehicles for weight reduction. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77a19969c42d7adb8b02372168ba03e4
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100860406
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100860406