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Toyokawa, Takuya; Usami, Koji; Shiina, Hidenori; Onozawa, Atsushi
Proceedings of 49th Conference on Hot Laboratories and Remote Handling (HOTLAB 2012) (Internet), 6 Pages, 2012/09
Hamada, Noriaki*; Shiina, Koji*; Fujimata, Kazuhiro*; Hayakawa, Satoshi*; Watanabe, Osamu*; Yamano, Hidemasa
Proceedings of International Conference on Fast Reactors and Related Fuel Cycles (FR 2009) (CD-ROM), 10 Pages, 2012/00
In a sodium-cooled fast reactor, a vortex cavitation evaluation methodology was developed to predict a possible cavitation generated by vortex at the center of accelerating flow. This methodology was applied to a scaled model experiment, leading to the prospect that the cavitation can be predicted.
-type antiferroquadrupolar ordering of the heavy-fermion superconductor PrOs
Sb
Kaneko, Koji; Metoki, Naoto; Shiina, Ryosuke*; Matsuda, Tatsuma; Kogi, Masafumi*; Kuwahara, Keitaro*; Bernhoeft, N.*
Physical Review B, 75(9), p.094408_1 - 094408_7, 2007/03
Times Cited Count：21 Percentile：63.52(Materials Science, Multidisciplinary)Neutron scattering experiments have revealed a field-induced antiferroquadrupolar order parameter in the Pr-based heavy-fermion superconductor PrOsSb. We observed the field-induced antiferromagnetic dipole moment with the propagation vector 
= (1 0 0) for the applied field direction both 
[1 1 0] and [0 0 1]. For [1 1 0] at 8 T, it should be noted that the induced antiferromagnetic moment of 0.16 
/ Pr orients parallel to the field within our experimental accuracy. This observation is strong evidence that the electric quadrupole to be the primary order parameter for [1 1 0]. A mean-field calculation, based on 
singlet and 
excited triplet with the quadrupolar interaction, reproduces the induced moment direction and its field response. These facts indicate the predominance of -type antiferroquadrupolar interaction in PrOsSb.
SbKaneko, Koji; Metoki, Naoto; Matsuda, Tatsuma; Kuwahara, Keitaro*; Kogi, Masafumi*; Shiina, Ryosuke*; Mignot, J.-M.*; Gukasov, A.*; Bernhoeft, N.*
Physica B; Condensed Matter, 378-380, p.189 - 191, 2006/05
Times Cited Count：1 Percentile：6.10(Physics, Condensed Matter)Neutron diffraction experiments under magnetic fields were carried out on the heavy fermion superconductor PrOsSb in order to reveal the origin of the field-induced ordered phase (FIOP) for 
[1,1,0]. The application of magnetic field induces the weak superlattice peaks with the ordering vector =(1,0,0) in FIOP, which is the same as for 
[0,0,1]. The observed superlattice reflections for [1,1,0] result from the antiferromagnetic component of 
+
; the induced tiny antiferromagnetic moments orient parallel to the applied field. This result cannot be explained by magnetic interactions and strongly evidences the underlying AFQ order with as a primary order parameter. These facts clarify the dominant role of -type antiferroquadrupolar interaction in PrOsSb.
Miyamoto, Yoshiaki; Ogawa, Masuro; Akino, Norio; Shiina, Yasuaki; Inagaki, Yoshiyuki; Shimizu, Saburo; Onuki, Kaoru; Ishiyama, Shintaro; Katanishi, Shoji; Takeda, Tetsuaki; et al.
JAERI-Review 2001-006, 147 Pages, 2001/03
JAERI-Review-2001-006.pdf:9.2MB
no abstracts in English
Miura, Makoto; Hidaka, Yasuo; ; Omori, Takuro; Obata, Shinichi; Tanaka, Yasumasa; Shiina, Sadamu; Ogasawara, Koji
PNC TN841 79-12, 103 Pages, 1979/03
no abstracts in English
Miura, Makoto; Nagaki, Hiroshi; Tanaka, Yasumasa; Obata, Shinichi; Ogasawara, Koji; Shiina, Sadamu; Hirose, Ikuro; Hidaka, Yasuo
PNC TN841 76-35, 28 Pages, 1976/09
None
SbKaneko, Koji; Metoki, Naoto; Kimura, Hiroyuki*; Noda, Yukio*; Matsuda, Tatsuma; Shiina, Ryosuke*; Kuwahara, Keitaro*; Iwasa, Kazuaki*; Kogi, Masafumi*; Bernhoeft, N.*
no journal, ,
no abstracts in English
Shiina, Hidenori; Usami, Koji; Sakuraba, Naotoshi; Harada, Akio; Onozawa, Atsushi; Nakata, Masahito
no journal, ,
Zn
Kaneko, Koji; Raymond, S.*; Ressouche, E.*; Shiina, Ryosuke*; Takeuchi, Tetsuya*; Hirose, Yusuke*; Honda, Fuminori*; Onuki, Yoshichika; Lapertot, G.*
no journal, ,
no abstracts in English
Hamada, Noriaki*; Fujimata, Kazuhiro*; Shiina, Koji*; Hayakawa, Satoshi*; Watanabe, Osamu*; Yamano, Hidemasa
no journal, ,
A computational method for predicting vortex cavitation based on the theory of vortex streching was developed to predict possible cavitation generated by vortex at the center of accelerating swirl flow in the reactor vessel in a sodium-cooled fast reactor. This method was applied to a scale model test of a commercial fast reactor, leading to feasibility of this method that can predict the cavitation.
