Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Junko Kiyohara"'
Autor:
Norihiro Matsusaka, Yoshihide Hoshino, Atsushi Takahashi, Chiho Makifuchi, Hiroyuki Yoshioka, Junji Tanaka, Yuji Akiyama, Toshihide Mimura, Satoshi Nishino, Junko Kiyohara, Hiromi Oda, Takashi Maruyama, Yuko Shinden, Yuho Kadono, Yoon Taek Kim, Atsushi Momose, Kazuhiro Kido, Mamoru Niitsu
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
Scientific Reports
Scientific Reports
X-ray Talbot-Lau interferometry is one of the x-ray phase imaging methods that has high sensitivity in depicting soft tissues. Unlike earlier x-ray phase imaging methods that required particular types of x-ray sources, such as a synchrotron or a micr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::384ff6b397c574d440ff2d5e3c12a81d
https://doi.org/10.1038/s41598-020-63155-9
https://doi.org/10.1038/s41598-020-63155-9
Autor:
Junji Tanaka, Junko Kiyohara, Masabumi Nagashima, Chiho Makifuchi, Atsushi Momose, Kazuhiro Kido
Publikováno v:
Anatomical Science International. 89:95-100
Conventional X-ray absorption contrast imaging does not depict soft tissues, such as cartilage, in sufficient detail. For visualization of the soft tissues, X-ray phase-contrast imaging is more sensitive than absorption-contrast imaging. The basic co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c655bca33fafc53e6d8564a4ac804a9a
https://doi.org/10.1007/s12565-013-0204-z
https://doi.org/10.1007/s12565-013-0204-z
Autor:
Masabumi Nagashima, Junji Tanaka, Yoshihide Hoshino, Sumiya Nagatsuka, Atsushi Momose, Kazuhiro Kido, Satoshi Nishino, Chiho Makifuchi, Junko Kiyohara
Publikováno v:
Zeitschrift für Medizinische Physik. 23:222-227
We developed an X-ray phase imaging system based on Talbot-Lau interferometry and studied its feasibility for clinical diagnoses of joint diseases. The system consists of three X-ray gratings, a conventional X-ray tube, an object holder, an X-ray ima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89d3e628b97798cfe3b0f2a3b1775550
https://doi.org/10.1016/j.zemedi.2012.11.004
https://doi.org/10.1016/j.zemedi.2012.11.004
Autor:
Satoshi Masuda, Junko Kiyohara, J. Sato, Hiroyuki Takasaki, Ayumi Asai, Takaaki Yokoyama, Takeo Kosugi, Hiroshi Nakajima
Publikováno v:
The Astrophysical Journal. 661:1234-1241
We present an examination of multiwavelength observations of an M8.2 long-duration flare which occurred on 2000 November 25. During the flare, we can see a hard X-ray (HXR) source on one Hα flare ribbon in the HXR images obtained with the Hard X-ray
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3751560ebd27997706fde40789df5bc
https://doi.org/10.1086/517514
https://doi.org/10.1086/517514
Autor:
Yasuhiro Takei, Hiroyuki Takasaki, Ayumi Asai, Toshio Terasawa, Kazunari Shibata, Masumi Shimojo, Junko Kiyohara
Publikováno v:
The Astrophysical Journal. 613:592-599
We present an examination of multiwavelength observations of three X-class homologous flares that occurred on 2000 November 24. By investigating the behavior of the two-ribbon flares in Hα and the ultraviolet (1600 A), we found that the temporal var
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4acfae71cfbeeac926a829fe64fef5e3
https://doi.org/10.1086/422862
https://doi.org/10.1086/422862
Publikováno v:
Breast Imaging ISBN: 9783319078861
Digital Mammography / IWDM
Digital Mammography / IWDM
Visibility-contrast image obtained by the X-ray grating interferometer reflects reduction of coherence due to the object’s structures. In the case of the one-dimensional grating, visibility-contrast image is affected by relative angle between the s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b321d1a5c4bd4a3aa4a256ca82af023
https://doi.org/10.1007/978-3-319-07887-8_67
https://doi.org/10.1007/978-3-319-07887-8_67
Autor:
Hiroyuki Takasaki, Satoshi Masuda, Noriyuki Narukage, Hiroshi Nakajima, Ayumi Asai, Junko Kiyohara, Takaaki Yokoyama, Masumi Shimojo
We studied electron spectral indices of nonthermal emissions seen in hard X-rays (HXRs) and in microwaves. We analyzed 12 flares observed by the Hard X-ray Telescope aboard {\it Yohkoh}, Nobeyama Radio Polarimeters (NoRP), and the Nobeyama Radiohelio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e41dfe1697f135225b74d1f870262d6
http://arxiv.org/abs/1212.1806
http://arxiv.org/abs/1212.1806
Autor:
Atsushi Momose, Kazuhiro Kido, Masabumi Nagashima, Junji Tanaka, Shu Ichihara, Sumiya Nagatsuka, Chiho Makifuchi, Wataru Yashiro, Junko Kiyohara, Tokiko Endo
Publikováno v:
AIP Conference Proceedings.
The prototype of the Talbot-Lau interferometer for clinical use was designed and applied to the preclinical examination. The human cadaveric hand and the mastectomy specimen were imaged. As a result, the images obtained by Talbot-Lau interferometry s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3838b721e08e090da9512decc87c19ac
https://doi.org/10.1063/1.4742275
https://doi.org/10.1063/1.4742275
Publikováno v:
SPIE Proceedings.
The purpose of this study was to design an X-ray Talbot-Lau interferometer for the imaging of bone cartilage using a practical X-ray tube and to develop that imaging system for clinical use. Wave-optics simulation was performed to design the interfer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21b958793cdeb8126c26cc4889e3c620
https://doi.org/10.1117/12.843655
https://doi.org/10.1117/12.843655
Autor:
Chiho Makifuchi, Kazuhiro Kido, Junko Kiyohara, Tsukasa Ito, Sumiya Nagatsuka, Atsushi Momose, Pramod K. Rastogi, Erwin Hack
Publikováno v:
AIP Conference Proceedings.
The purpose of this study was to design an X‐ray Talbot‐Lau interferometer for the imaging of bone cartilage using a practical X‐ray tube and to develop that imaging system for clinical use. Wave‐optics simulation was performed to design the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc38ed5831506f97bad1741e9e4be57e
https://doi.org/10.1063/1.3426112
https://doi.org/10.1063/1.3426112