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Naoi, Yosuke; Oda, Tetsuzo; Tomikawa, Hirofumi
Nihon Genshiryoku Gakkai-Shi ATOMO
, 58(9), p.536 - 541, 2016/09
Japan has been promoting nuclear energy research and development, and the use of nuclear energy for only peaceful purposes in accordance with Atomic Energy Basic Acts enacted in 1955. In order to ensure limited to their peaceful utilization, it has been performing a nuclear material accountancy and reporting it based on bilateral nuclear agreement (Japan and the United States, Japan and France, Japan and Canada and so on) before concluding the comprehensive safeguards agreement with the IAEA. After the conclusion of that in 1977, the Japanese national law had been revised. The nuclear material accountancy and its reports to the IAEA have been implemented based on the revised law. In 1999, Japan ratified the additional protocol. Then it has been responding a new obligation in the additional protocol. The correctness and completeness of the declaration of nuclear activities in Japan have been verified by the IAEA, and then the "broader conclusion" was given to Japan in 2004. There indicates no diversion or undeclared nuclear activities in Japan. Since then Japan has been obtaining the "broader conclusion" every year. In this report we will report the JAEA's contribution to the IAEA safeguards on technical research and development and human resource development.
Sugiyama, Akira; Katsurayama, Masamichi*; Anzai, Yutaka*; Tsuboi, Taiju*
Journal of Alloys and Compounds, 408-412, p.780 - 783, 2006/02
Times Cited Count：24 Percentile：75.32(Chemistry, Physical)Laser crystals of LiYF
(YLF) doped with 5 - 64 at.% of trivalent ytterbium ions (Yb
) were grown by a vertical Bridgman method. As crystal growth materials of YbF
and YF including YOF impurities caused opaque crystal, the YOF reduction procedure using PbF
was essential before starting the crystal growth. We derived seven energy levels from the 
F
and F
manifolds of Yb: YLF by the crystal-field analysis from which we explain the observed polarized absorption and emission spectra. The intrinsic broad and complicated spectra of Yb: YLF are attributed to the strong coupling of the 4f electrons with lattice vibration of the crystal.
Cao, X.; Suzaki, Takenori; Kugo, Teruhiko; Mori, Takamasa
JAERI-Tech 2003-069, 36 Pages, 2003/08
JAERI-Tech-2003-069.pdf:3.77MB
From the viewpoint of nuclear criticality safety of fuel rod storage and transport, a series of critical experiments concerning effects of water hole size, water gap width, water-to-fuel volume ratio and non-uniform arrangement of water moderator have been performed at the Tank-type Critical Assembly (TCA) of Japan Atomic Energy Research Institute. In the present study, the effects of volume fraction and non-uniform arrangement of water moderator on reactivity are evaluated by the water level worth method and analyzed by the SRAC code. Error sources of experiments and calculations are discussed, especially for an energy group model. The calculation results of diffusion model with 17-group model show good agreement with the experiment results within a few dozen cents.
Fujita, Ayumi
Physical Review B, 64(6), p.064504_1 - 064504_6, 2001/08
Times Cited Count：0 Percentile：0(Materials Science, Multidisciplinary)We study parametric level statistics of the discretized excitation spectra inside a moving vortex core in layered superconductors with impurities. The universal conductivity is evaluated numerically for the various values of rescaled vortex velocities 
from the clean case to the dirty limit case. The random matrix theoretical prediction is verified numerically in the large regime. On the contrary in the low velocity regime, we observe 
which is consistent with the theoretical result for the super-clean case, where the energy dissipation is due to the Landau-Zener transition which takes place at the points called ``avoided crossing''.
Utsumi, Takayuki*; Sasaki, Akira
JAERI-Data/Code 2000-003, p.30 - 0, 2000/02
JAERI-Data-Code-2000-003.pdf:1.16MB
no abstracts in English
Shirai, Toshizo; Sugar, J.*; Musgrove, A.*; Wiese, W. L.*
Journal of Physical and Chemical Reference Data Monograph No. 8, 632 Pages, 2000/00
no abstracts in English
states in neutron-deficient Ba nucleiAsai, Masato*; Sekine, Toshiaki; Osa, Akihiko; Koizumi, Mitsuo; Kojima, Yasuaki*; Shibata, M.*; *; Kawade, Kiyoshi*
Physical Review C, 56(6), p.3045 - 3053, 1997/12
Times Cited Count：22 Percentile：74.56(Physics, Nuclear)no abstracts in English
- angular correlation measurements for mass-separated short-lived nucleiAsai, Masato*; Kawade, Kiyoshi*; *; Osa, Akihiko; Koizumi, Mitsuo; Sekine, Toshiaki
Nuclear Instruments and Methods in Physics Research A, 398, p.265 - 275, 1997/00
Times Cited Count：6 Percentile：50.11(Instruments & Instrumentation)no abstracts in English
Asai, Masato*; *; Osa, Akihiko; Koizumi, Mitsuo; Sekine, Toshiaki; *; Yamamoto, Hiroshi*; Kawade, Kiyoshi*
KURRI-KR-3, 0, p.36 - 40, 1996/00
no abstracts in English
Ba investigated by - angular correlation measurementAsai, Masato*; *; Osa, Akihiko; Koizumi, Mitsuo; Sekine, Toshiaki; *; Yamamoto, Hiroshi*; Kawade, Kiyoshi*
ENAM 95: Int. Conf. on Exotic Nuclei and Atomic Masses, 0, p.539 - 540, 1995/00
no abstracts in English
Shirai, Toshizo; *; Sugar, J.*
Journal of Physical and Chemical Reference Data, 24(4), p.1577 - 1608, 1995/00
Times Cited Count：25 Percentile：75.5(Chemistry, Multidisciplinary)no abstracts in English
Shirai, Toshizo; *; *; Sugar, J.*; Wiese, W. L.*
Journal of Physical and Chemical Reference Data, 23(2), p.179 - 294, 1994/00
Times Cited Count：20 Percentile：74.81(Chemistry, Multidisciplinary)no abstracts in English
Shirai, Toshizo; *; *; Sugar, J.*; Wiese, W. L.*
Journal of Physical and Chemical Reference Data, 22(5), p.1279 - 1423, 1993/00
Times Cited Count：21 Percentile：75.01(Chemistry, Multidisciplinary)no abstracts in English
; ;
JAERI-M 87-053, 140 Pages, 1987/03
no abstracts in English
*
JAERI-M 83-198, 29 Pages, 1983/11
no abstracts in English
*
JAERI-M 83-164, 32 Pages, 1983/10
no abstracts in English
*
JAERI-M 83-155, 50 Pages, 1983/09
no abstracts in English
,L
,L
,L
and L
linesJournal of Radioanalytical Chemistry, 63(1), p.201 - 204, 1981/00
no abstracts in English
;
Journal of Nuclear Science and Technology, 16(10), p.701 - 710, 1979/10
Times Cited Count：2no abstracts in English
; *; *
JAERI-M 7734, 55 Pages, 1978/06
no abstracts in English
Progress of Theoretical Physics, 60(6), p.1640 - 1652, 1978/00
Times Cited Count：14no abstracts in English
