JAEA
  • help
  • PC | SP
  • JP | EN
          
Refine your search：     
Report No.
 - 
Clear All
Search Results: Records 1-20 displayed on this page of 90

Presentation/Publication Type

Initialising ...

Refine

Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...

Keyword

Initialising ...

Language

Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Save select records

Journal Articles

Observation of field-induced single-ion magnetic anisotropy in a multiorbital Kondo alloy (Lu,Yb)Rh$$_2$$Zn$$_{20}$$

Kitazawa, Takafumi; Ikeda, Yoichi*; Sakakibara, Toshiro*; Matsuo, Akira*; Shimizu, Yusei*; Tokunaga, Yo; Haga, Yoshinori; Kindo, Koichi*; Nambu, Yusuke*; Ikeuchi, Kazuhiko*; et al.

Physical Review B, 108(8), p.085105_1 - 085105_7, 2023/08

https://doi.org/10.1103/PhysRevB.108.085105

Journal Articles

Neutronics assessment of advanced shield materials using metal hydride and borohydride for fusion reactors

Hayashi, Takao; Tobita, Kenji; Nishio, Satoshi; Ikeda, Kazuki*; Nakamori, Yuko*; Orimo, Shinichi*; DEMO Plant Design Team

Fusion Engineering and Design, 81(8-14), p.1285 - 1290, 2006/02

https://doi.org/10.1016/j.fusengdes.2005.09.060
 Times Cited Count：22 Percentile：79.98(Nuclear Science & Technology)

Neutron transport calculations were carried out to evaluate the capability of metal hydrides and borohydrides as an advanced shielding material. Some hydrides indicated considerably higher hydrogen content than polyethylene and solid hydrogen. The hydrogen-rich hydrides show superior neutron shielding capability to the conventional materials. From the temperature dependence of dissociation pressure, ZrH$$_{2}$$ and TiH$$_{2}$$ can be used without releasing hydrogen at the temperature of less than 640 $$^{circ}$$C at 1 atm. ZrH$$_{2}$$ and Mg(BH$$_{4}$$)$$_{2}$$ can reduce the thickness of the shield by 30% and 20% compared to a combination of steel and water, respectively. Mixing some hydrides with F82H produces considerable effects in $$gamma$$-ray shielding. The neutron and $$gamma$$-ray shielding capabilities decrease in order of ZrH$$_{2}$$ $$>$$ Mg(BH$$_{4}$$)$$_{2}$$ and F82H $$>$$ TiH$$_{2}$$ and F82H $$>$$ water and F82H.

Journal Articles

A Modified version of the analytical potential function for the global ab initio ground-state potential energy surface of the BrH$$_{2}$$ system

Kurosaki, Yuzuru; Takayanagi, Toshiyuki*

Chemical Physics Letters, 406(1-3), p.121 - 125, 2005/04

https://doi.org/10.1016/j.cplett.2005.02.106

no abstracts in English

Journal Articles

Effects of hydrogen peroxide and oxygen on corrosion of stainless steel in high temperature water

Uchida, Shunsuke*; Sato, Tomonori; Morishima, Yusuke*; Hirose, Tatsuya*; Miyazawa, Takahiro*; Kakinuma, Nagao*; Sato, Yoshiyuki*; Usui, Naoshi*; Wada, Yoichi*

Proceedings of 12th International Conference on Environmental Degradation of Materials in Nuclear Power Systems-Water Reactors (CD-ROM), p.19 - 29, 2005/00

Static and dynamic responses of stainless steel specimens exposed to H$$_{2}$$O$$_{2}$$ and O$$_{2}$$ in high temperature water were evaluated by analyzing ECP and FDCI (frequency dependent complex impedance). The oxide films on the specimens were characterized by multilateral surface analyses, e.g., LRS, SIMS, XPS and direct electric resistance measurement. As a result of evaluation, it was confirmed that (1) corrosive condition of BWR normal water chemistry (NWC) was simulated by 100 ppb H$$_{2}$$O$$_{2}$$ without co-existing O$$_{2}$$, while that of hydrogen water chemistry (HWC) was simulated by 10 ppb H$$_{2}$$O$$_{2}$$, (2) ECP under HWC was as high as that under NWC, while dissolution rate of oxide film under HWC was much lower than that under NWC, (3) combination effects of electric resistance and dissolution rate of oxide caused same level ECP for both NWC and HWC, and (4) distinct weight loss of the specimen exposed to 100 ppb H$$_{2}$$O$$_{2}$$ was observed.

Journal Articles

Global ${it ab initio}$ potential energy surfaces for the lowest three doublet states (1$$^{2}$$A', 2$$^{2}$$A', and 1$$^{2}$$A") of the BrH$$_{2}$$ system

Kurosaki, Yuzuru; Takayanagi, Toshiyuki

Journal of Chemical Physics, 119(15), p.7838 - 7856, 2003/10

https://doi.org/10.1063/1.1609398
 Times Cited Count：26 Percentile：63.62(Chemistry, Physical)

Adiabatic potential energy surfaces of the lowest three doublet states (1$$^{2}$$A', 2$$^{2}$$A', and 1$$^{2}$$A") for the BrH$$_{2}$$ system have been calculated globally using the MRCI+Q method with the aug-cc-pVTZ basis set. Spin-orbit effects were considered on the basis of Breit-Pauli Hamiltonian. The calculated adiabatic energies were fitted to the analytical functional form of many-body expansion. The barrier heights of the abstraction and exchange reactions on the ground-state PES were calculated to be 1.28 and 11.71 kcal mol$$^{-1}$$, respectively, at the MRCI+Q/aug-cc-pVTZ level of theory. The fits for the three PESs were successful within the accuracy of 0.1 kcal mol$$^{-1}$$. Thermal rate constants for the abstraction and exchange reactions and their isotopic variants were calculated with the fitted 1$$^{2}$$A' PES using the ICVT/LAG method. The calculated rate constants for the abstarction reactions agree fairly well with experiment but those for the exchange reactions were much smaller than experiment, which suggests that the reliable experimental data are still insufficient.

Journal Articles

Inelasticity effect on neutron scattering intensities of the null-H$$_{2}$$O

Kameda, Yasuo*; Sasaki, Motoya*; Usuki, Takeshi*; Otomo, Toshiya*; Ito, Keiji*; Suzuya, Kentaro; Fukunaga, Toshiharu*

Journal of Neutron Research, 11(3), p.153 - 163, 2003/09

https://doi.org/10.1080/10238160310001657817

We describe results of time-of-flight (TOF) neutron diffraction of the liquid water null-H$$_{2}$$O in order to investigate the effect of both the scattering angle and the neutron flight path ratio to the observed self-scattering intensities. An empirical inelasticity correction procedure is proposed using the self-scattering intensity observed for the null-H$$_{2}$$O.

Journal Articles

Superconductivity in CeRh$$_{2}$$Si$$_{2}$$ under pressure

Araki, Shingo; Nakashima, Miho*; Settai, Rikio*; Kobayashi, Tatsuo*; Onuki, Yoshichika

Acta Physica Polonica B, 34(2, Part1), p.439 - 442, 2003/02

http://www.actaphys.uj.edu.pl/_cur/store/vol34/pdf/v34p0439.pdf

no abstracts in English

Journal Articles

Mechanisms and kinetics of hydrogen yield from polymers by irradiation

Seguchi, Tadao

Nuclear Instruments and Methods in Physics Research B, 185(1-4), p.43 - 49, 2001/12

https://doi.org/10.1016/S0168-583X(01)00777-7
 Times Cited Count：18 Percentile：48.84(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Analytic cross sections for electron collisions with CO, CO$$_{2}$$, and H$$_{2}$$O relevant to edge plasma impurities

Shirai, Toshizo; Tabata, Tatsuo*; Tawara, Hiroyuki*

Atomic Data and Nuclear Data Tables, 79(1), p.143 - 184, 2001/09

https://doi.org/10.1006/adnd.2001.0866
 Times Cited Count：56 Percentile：91.21(Physics, Atomic, Molecular & Chemical)

no abstracts in English

Journal Articles

Preliminary experiments for continuous separation of H$$_{2}$$/He mixture gas

Tanzawa, Sadamitsu; Hiroki, Seiji; Abe, Tetsuya; Inohara, Takashi*

Shinku, 44(7), p.667 - 670, 2001/07

https://doi.org/10.3131/jvsj.44.667

no abstracts in English

JAEA Reports

Neutronic characteristics of coupled moderator proposed in integrated model

Teshigawara, Makoto; Meigo, Shinichiro; Sakata, Hideaki*; Kai, Tetsuya; Harada, Masahide; Ikeda, Yujiro; Watanabe, Noboru

JAERI-Research 2001-022, 33 Pages, 2001/05

JAERI-Research-2001-022.pdf:5.16MB

no abstracts in English

Journal Articles

Cross-sections for ion production in H$$^{+}$$+H$$_{2}$$ collisions calculated with the trajectory-surface-hopping method

Ichihara, Akira; Iwamoto, Osamu; Yokoyama, Keiichi

Atomic and Plasma-Material Interaction Data for Fusion, Vol. 9, p.193 - 235, 2001/00

no abstracts in English

Journal Articles

Cross sections for the reaction H$$^{+}$$+H$$_{2}$$(v=0-14)$$rightarrow$$H+H$$_{2}^{+}$$ at low collision energies

Ichihara, Akira; Iwamoto, Osamu; Janev, R. K.*

Journal of Physics B; Atomic, Molecular and Optical Physics, 33(21), p.4747 - 4758, 2000/11

https://doi.org/10.1088/0953-4075/33/21/318
 Times Cited Count：62 Percentile：90.25(Optics)

no abstracts in English

Journal Articles

Analytic cross sections for collisions of H$$^{+}$$, H$$_{2}^{+}$$, H$$_{3}^{+}$$, H, H$$_{2}$$ and H$$^{-}$$ with hydrogen molecules

Tabata, Tatsuo*; Shirai, Toshizo

Atomic Data and Nuclear Data Tables, 76(1), p.1 - 25, 2000/09

https://doi.org/10.1006/adnd.2000.0835
 Times Cited Count：79 Percentile：94.46(Physics, Atomic, Molecular & Chemical)

no abstracts in English

Journal Articles

Decompositions of carbon dioxide, carbon monoxide and gaseous water by microwave discharge

Sakurai, Tsutomu*; Yokoyama, Atsushi

Journal of Nuclear Science and Technology, 37(9), p.814 - 820, 2000/09

https://doi.org/10.3327/jnst.37.814

no abstracts in English

Journal Articles

Site-specific ion desorption from condensed C- and N-deuterated formamide near the caron and nitrogen K-edge

Sekiguchi, Hiromi*; Sekiguchi, Tetsuhiro; Imamura, Motoyasu*; Matsubayashi, Nobuyuki*; Shimada, Hiromichi*; Baba, Yuji

Surface Science, 454-456, p.407 - 411, 2000/05

https://doi.org/10.1016/S0039-6028(00)00225-9
 Times Cited Count：5 Percentile：32.74(Chemistry, Physical)

no abstracts in English

JAEA Reports

High temperature corrosion of iron-base and nickel-base alloys for hydrogen production apparatus by thermochemical method in H$$_{2}$$O+SO$$_{3}$$ atmosphere

Kurata, Yuji; Suzuki, Tomio; Shimizu, Saburo

JAERI-Research 2000-011, p.56 - 0, 2000/03

JAERI-Research-2000-011.pdf:14.24MB

no abstracts in English

Journal Articles

Ground-state magnetic structure of CeRh$$_{2}$$Si$$_{2}$$ and response to hydrostatic pressure as studied by neutron diffraction

Kawarazaki, Shuzo*; Sato, Masugu*; Miyako, Yoshihito*; Chigusa, Nobusato*; Watanabe, Kenji*; Metoki, Naoto; Koike, Yoshihiro; Nishi, Masakazu*

Physical Review B, 61(6), p.4167 - 4173, 2000/02

https://doi.org/10.1103/PhysRevB.61.4167
 Times Cited Count：86 Percentile：93.71(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

State-selected cross sections for ion production in the H$$^{+}$$+H$$_{2}$$ collisions

Ichihara, Akira; Iwamoto, Osamu; Yokoyama, Keiichi

Atomic Collision Research in Japan, No.25, p.28 - 29, 1999/11

no abstracts in English

Journal Articles

Photon-stimulated ion desorption in deuterated formamide adsorbates

Sekiguchi, Hiromi*; Sekiguchi, Tetsuhiro; Imamura, Motoyasu*; Matsubayashi, Nobuyuki*; Shimada, Hiromichi*; Baba, Yuji

Photon Factory Activity Report 1998, Part B, P. 37, 1999/11

http://ccdb5fs.kek.jp/cgi-bin/img/tiff2gif?199923003+00067

no abstracts in English

90 (Records 1-20 displayed on this page)