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Po/
Po ratio of the alpha reduced determined by alpha knockout reactionYoshida, Kazuki; Tanaka, Junki*
no journal, ,
We analyzed various types of cross sections of the 
Po(
,
)
Pb reaction, such as the triple differential cross section, longitudinal momentum distribution, and the total knockout cross section. It is confirmed that by the proton-induced 
knockout reaction, it is possible to extract the reduced width of the decay nuclei. This is because of the surface sensitivity of the reaction, not the amplitude in the whole region but only the surface amplitude contributes to the knockout cross sections. This feature allows us to probe the reduced width, namely, the formation probability on the surface of the decay nuclei.
Endo, Shunsuke; Abe, Ryota*; Ishizaki, Kohei*; Ito, Yuki*; Oku, Takayuki; Okudaira, Takuya*; Omer, M.; Kameda, Kento*; Kitaguchi, Masaaki*; Kimura, Atsushi; et al.
no journal, ,
no abstracts in English
-BaTiO solid solutionYoneda, Yasuhiro; Kim, S.*; Wada, Satoshi*
no journal, ,
In a solid solution formed with BiFeO and BaTiO, a pseudo cubic phase appears at room temperature with a BaTiO composition of 0.3 to 0.7. Since the ferroelectricity is not lost even in the Cubic structure, a structural analysis using pair distribution function was performed to clarify the origin of the ferroelectricity. The local structure of these solid solutions was consistent with the pure limits of BiFeO and BaTiO, respectively, but when the BaTiO composition was 0.3, a structure peculiar to the solid solution appeared.
Minato, Futoshi; Zhongming, N.*; Liang, H.*
no journal, ,
no abstracts in English
measurements at J-PARCSako, Hiroyuki; Sato, Susumu; Miake, Yasuo
no journal, ,
no abstracts in English
Uchino, Shun
no journal, ,
We discuss mesoscopic transport systems with Bose-Einstein condensates. We demonstrate its transport characteristics under several setups and reveal differences from mesoscopic superconductors.
Al
and NdPd
Ge
Metoki, Naoto; Shibata, Kaoru; Matsuura, Masato*; Kitazawa, Hideaki*; Suzuki, Hiroyuki*; Yamauchi, Hiroki; Hagihara, Masato; Frontzek, M. D.*; Matsuda, Masaaki*
no journal, ,
Hyperfine splitting of Nd nuclei in NdPdAl has been studied by means of high-resolution neutron spectroscopy. We observed inelastic peaks at 
eV coming from the hyperfine splitting in the magnetically ordered phase due to the hyperfine interactions between Nd nuclei (
=7/2) and the 4
electrons with 
ground state composed of mainly 
. At very low temperatures, nuclear spin of Nd is polarized with increasing occupation probability of low energy levels and contributes to the enhancement of the antiferromagnetic Bragg intensities: the elastic non-spin-flip channel is dominant. As an application of this phenomenon, we determined the Nd moment and hyperfine splitting from the temperature dependence of an antiferromagnetic Bragg intensities for NdPdGe.
Sonoda, Shinya*; Takada, Atsushi*; Tanimori, Toru*; Tsuda, Masaya*; Tahara, Keisuke*; Kobayashi, Koichiro*; Tanigaki, Minoru*; Nagai, Haruyasu; Nakayama, Hiromasa; Satoh, Daiki
no journal, ,
We have developed an Electron Tracking Compton Camera (ETCC), which provides a well-defined Point Spread Function (PSF) by reconstructing a direction of each gamma as a point and realizes simultaneous measurement of brightness and spectrum of MeV gamma-rays. Here, we present the results of the gamma-imaging-spectroscopy with ETCC tested at the research reactor at the Institute for Integrated Radiation and Nuclear Science, Kyoto University.
Yoshii, Kenji; Tsuji, Takuya; Matsumura, Daiju; Nishida, Ginichi*; Inoue, Naoki*; Fukada, Yukimasa*; Yaita, Tsuyoshi
no journal, ,
We have investigated the magnetic properties of Bi-doped perovskite GdCrO, which was reported to be multiferroic below the magnetic transition temperature (170 K). For the low doping levels (about 5-10% Bi at the Gd site), single-phase samples could be prepared at 920
C, a temperature which is much lower than the firing temperature of GdCrO (about 1300-1400C). This result is essentially the same as that of isostructural (Sm,Bi)CrO. Magnetic measurements showed that the magnetic properties were essentially identical to those of GdCrO. For example, the chromium spins show a ferrimagnetic transition at 170 K. Interestingly, these properties were entirely different from those of (Sm,Bi)CrO, which showed that the Bi doping led to a drastic lowering of magnetic transition temperature (by 140 K). We have also conducted X-ray absorption measurements to determine the crystallographic site of Bi. The results will be shown at the conference.
Ogawa, Tatsuhiko; Litaize, O.*; Mancusi, D.*; Chebboubi, A.*; Serot, O.*
no journal, ,
The Monte-Carlo code FIFRELIN was originally developed for the simulation of first chance fissions of fissile nuclei. In this study, its interfaces to codes handling the post-reaction processes were developed. The energy spectra of neutrons, electrons and photons from fission reactions are output in a format compatible with PHITS, a general-purpose particle transport code. By using this functionality, one can simulate the transport and reactions of particles based on the cross section data and reaction models of PHITS, and the source spectra calculated by FIFRELIN. The other interface developed in this study outputs nuclide yield output in a format compatible with DCHAIN-PHITS, a burn-up calculation code. This interface is necessary to consider the build-up, which depends on the time structure of the incoming neutron beam as well as the decay during the cooling period.
Okayasu, Satoru; Takeyama, Akinori*; Oshima, Takeshi*; Harii, Kazuya*; Ieda, Junichi; Ishida, Masahiko*; Saito, Eiji
no journal, ,
We are investigating the applications of spintronics devices in atomic fields. We reported the Tolerance of spin-Seebeck thermoelectricity against heavy swift ion irradiation previously. The tolerance of spin-Seebeck thermoelectricity against gamma ray irradiation will be reported at this conference. The spin thermoelectric properties after gamma ray irradiation up to 
1MGy at room temperature and at 150C will be reported.
Fe
O
irradiated with swift heavy ionsIshikawa, Norito; Taguchi, Tomitsugu*
no journal, ,
Hillock formation is one of the important aspects of radiation-induced modification of solid material. To our knowledge this is first result showing that the hillock formation in ceramics is affected by the velocity effect. The present result include Se-dependences of hillock dimensions based on precise measurement using TEM (transmission electron microscopy). Hillock size is actually comparable to ion-track size in wide Se range. In addition, the results include important insight about the hillock formation mechanism including the thermal spike model.
Ogawa, Tatsuhiko; Hirata, Yuho; Matsuya, Yusuke; Kai, Takeshi
no journal, ,
Track-structure calculation, a method to simulate every secondary electron production reaction explicitly, has been extensively used as an important techniques in various fields such as radiation biology, material irradiation effect, and radiation detection. However, it requires the dielectric function of the target materials, which is not well known except for liquid water. Therefore we developed a model to perform track-structure calculation based on a systematic formula of secondary electron production cross section and that of stopping power. The model can therefore perform track-structure calculation regardless of the availability of dielectric function measurement data. Stopping range, and energy deposition radial distribution calculated by this model agreed well with the earlier experimental data and calculation by precedent codes. The lineal energy in tissue-equivalent gas calculated by this model agreed with measurement data taken from literature, showing distinct difference from that in liquid water. This model was implemented to PHITS Ver3.25, the general-purpose radiation transport simulation code of JAEA, being distributed to users as the first track-structure calculation model applicable to arbitrary materials available in general-purpose transport code.
Matsubara, Akihiro; Jinno, Satoshi; Fujita, Natsuko; Kimura, Kenji
no journal, ,
We numerically estimated the suppression efficiency of the surface stripper in the case of the grazing incidence of the 
CH with energy of tens of keV onto a single crystal surface, in consideration of the energy distribution of the surface electron seen from the restframe of the moving projectile.
Kubo, Katsunori
no journal, ,
no abstracts in English
bound state in the in-flight 
reaction on helium-4Hashimoto, Tadashi
no journal, ,
no abstracts in English
ion emission lifetime in aqueous solution of Gd sulfateIwata, Yoshihiro; Sekiya, Hiroyuki*; Ito, Chikara
no journal, ,
We are studying the measurement of Gd ion emission lifetime in aqueous solution of Gd sulfate. In this study, a nanosecond pulsed laser at 266 nm was used as the excitation light source, and emission at 312 nm was detected by a photomultiplier tube attached to a monochromator. The emission lifetime was measured to be about 2 ms, which was longer than that of other lanthanoid ions.
angular dependent term of 
La(n,
)
La reaction for polarized neutronsAbe, Ryota*; Ishizaki, Kohei*; Ito, Yuki*; Endo, Shunsuke; Oku, Takayuki; Okudaira, Takuya*; Kameda, Kento*; Kitaguchi, Masaaki*; Kimura, Atsushi; Sakai, Kenji; et al.
no journal, ,
no abstracts in English
In(n,) reaction toward a search for time-reversal violation using an indium targetTakada, Shusuke*; Abe, Ryota*; Ishizaki, Kohei*; Ito, Yuki*; Endo, Shunsuke; Oku, Takayuki; Okudaira, Takuya*; Kameda, Kento*; Kitaguchi, Masaaki*; Kimura, Atsushi; et al.
no journal, ,
no abstracts in English
interaction by meson and quark exchangesYamaguchi, Yasuhiro; Abe, Yukihiro*; Hosaka, Atsushi
no journal, ,
reported in 2013 is one of the interesting exotic hadrons. The lattice QCD simulation by the HALQCD collaboration studies the potential that is realized as a charm-quark exchange force. HALQCD also find that the strong contribution from the potential generates a cusp structure near the energy region, where was observed. However the charm-quark exchange force itself has not been understood well. We investigate the nature of the potential by employing the meson-exchange and quark-exchange models.