Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Masaaki Tokunaga"'
Publikováno v:
Proceedings of the Second International Symposium on Radiation Detectors and Their Uses (ISRD2018).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12b398f4a7d6948772c234ec28fa333c
https://doi.org/10.7566/jpscp.24.011041
https://doi.org/10.7566/jpscp.24.011041
Autor:
Akihiro Nohtomi, Heita Uno, Hiroyuki Kinoshita, Yasuhiko Nakamura, Ryosuke Kurihara, Yoshiyuki Umezu, Saiji Ohga, Soichiro Honda, Genichiro Wakabayashi, Masaaki Tokunaga, Junichi Fukunaga, Kiyomitsu Shinsho, Yusuke Koba
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 832:21-23
In our previous paper, the self-activation of an NaI scintillator had been successfully utilized for detecting photo-neutrons around a high-energy X-ray radiotherapy machine; individual optical pulses from the self-activated scintillator are read-out
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f20704f1e18ac34d12eb5ef1fe62179
https://doi.org/10.1016/j.nima.2016.06.078
https://doi.org/10.1016/j.nima.2016.06.078
Autor:
Masaaki Tokunaga, Hirotoshi Fukunaga
Publikováno v:
IEEJ Transactions on Fundamentals and Materials. 124:847-850
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b9a894ef2410049ffe97acdd79a1457
https://doi.org/10.1541/ieejfms.124.847
https://doi.org/10.1541/ieejfms.124.847
Publikováno v:
Intermetallics. 9:269-272
The bending strength and fracture toughness of the ternary and Co-containing NdFeB sintered magnets have been studied. The microstructure and the fracture behavior were examined utilizing micro-analysis. It is shown that the bend fracture of the NdFe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ab4c1772f0e55288787f4bc1cfd8e4a
https://doi.org/10.1016/s0966-9795(00)00063-7
https://doi.org/10.1016/s0966-9795(00)00063-7
Publikováno v:
Journal of Magnetism and Magnetic Materials. 214:61-68
Elements Cu and Nb were added into the sintered Nd–Fe–Co–B magnet in order to improve the mechanical properties of the magnet. The bending strength of the magnet increased at low level (⩽1 at%) of Cu or Nb additions while the fracture toughne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9450b044d9a308592307ae248eb2c608
https://doi.org/10.1016/s0304-8853(00)00006-8
https://doi.org/10.1016/s0304-8853(00)00006-8
Publikováno v:
Journal of Magnetism and Magnetic Materials. 134:47-52
The development of arc-shaped die-upset magnets with high-energy products was investigated. An arc-shaped magnet with ( BH ) max of more than 40 MGOe and i H c of more than 15 kOe was obtained. This arc-shaped die-upset magnet exhibits an almost radi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::941e6df369b27430919f872fb64f4910
https://doi.org/10.1016/0304-8853(94)90071-x
https://doi.org/10.1016/0304-8853(94)90071-x
Autor:
Minoru Endoh, S. G. Sankar, M. Hasegawa, Kimio Uchida, Masaaki Tokunaga, Yasuto Nozawa, Shigeho Tanigawa
Publikováno v:
Journal of Magnetism and Magnetic Materials. 124:325-329
Sm2Co17-type sintered magnets and Nd-Fe-B die-upset magnets have been investigated over the temperature range 4.2–423 K. Their magnetic properties were compared with those of SmCo5 and Nd-Fe-B sintered magnets. This study indicates that the Sm2Co17
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8bd36a8f809508003a50de2fb7b8c1df
https://doi.org/10.1016/0304-8853(93)90134-n
https://doi.org/10.1016/0304-8853(93)90134-n
Publikováno v:
IEEJ Transactions on Fundamentals and Materials. 113:535-539
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa59691d39b8418e86bc18e65b41a812
https://doi.org/10.1541/ieejfms1990.113.7_535
https://doi.org/10.1541/ieejfms1990.113.7_535
Autor:
Masaaki Tokunaga, H. Okajima, Z. Liu, Masahiro Tobise, K. Hiraga, M. Shindoh, Katsunori Iwasaki
Publikováno v:
IEEE Transactions on Magnetics. 35:3259-3261
Thermal stability of HDDR processed Sm-Fe-Ti-B-N bonded magnets is investigated in comparison with HDDR processed Sm-Fe-N bonded magnets. Temperature coefficients of Br and iHc of Sm-Fe-Ti-B-N bonded magnet are -0.06%//spl deg/C and -0.43%//spl deg/C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d27542db5557e477a034bd2e2be045a0
https://doi.org/10.1109/20.800491
https://doi.org/10.1109/20.800491
Publikováno v:
IEEE Transactions on Magnetics. 28:2850-2852
Basic investigations to apply the rapid quenched Nd-Fe-B die-upset technique to fabricate trapezoid-shaped magnets with high energy product were undertaken. Stress around the magnets with indentations during die-upsetting was evaluated by computer si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c965774c8b48f52719d4ce59ac919bcd
https://doi.org/10.1109/20.179648
https://doi.org/10.1109/20.179648