JOPSS - Search Results

Journal Articles

A Noniterative mean-field QM/MM-type approach with a linear response approximation toward an efficient free-energy evaluation

Kido, Kentaro

Journal of Computational Chemistry, 40(24), p.2072 - 2085, 2019/09

https://doi.org/10.1002/jcc.25844

Times Cited Count：3 Percentile：9.34(Chemistry, Multidisciplinary)

Journal Articles

Improvement of core dynamics analysis of control rod withdrawal test in HTGR

Takamatsu, Kuniyoshi; Nakagawa, Shigeaki

Nihon Genshiryoku Gakkai Wabun Rombunshi, 5(1), p.45 - 56, 2006/03

http://doi.org/10.3327/taesj2002.5.45

The HTTR (High Temperature Engineering Test Reactor), which has thermal output of 30MW, coolant inlet temperature of 395 $^{circ}$ C and coolant outlet temperature of 850 $^{circ}$ C/950 $^{circ}$ C, is a first high temperature gas-cooled reactor (HTGR) in Japan. The HTGR has a high inherent safety potential to accident condition. Safety demonstration tests using the HTTR are underway in order to demonstrate such excellent inherent safety features of the HTGR. A one-point core dynamics approximation with one fuel channel model had applied to this analysis. It was found that the analytical model for core dynamics couldn't simulate the reactor power behavior accurately. This report proposes an original method using temperature coefficients of some regions in the core. It is crucial to evaluate this method precisely to simulate a performance of HTGR during the test.

Journal Articles

Replica symmetry breaking for the Ising spin glass within cluster approximations

Yokota, Terufumi

Physica A, 363(2), p.161 - 170, 2006/03

https://doi.org/10.1016/j.physa.2005.08.035

Times Cited Count：6 Percentile：40.61(Physics, Multidisciplinary)

Within a class of cluster approximations, the Ising spin glass model on a d-dimensional hypercubic lattice is solved near the spin glass transition temperature. Spin glass order parameter function and Almeida-Thouless line are obtained.

JAEA Reports

Program POD; A Computer code to calculate nuclear elastic scattering cross sections with the optical model and neutron inelastic scattering cross sections by the distorted-wave Born approximation

Ichihara, Akira; Kunieda, Satoshi; Chiba, Satoshi; Iwamoto, Osamu; Shibata, Keiichi; Nakagawa, Tsuneo; Fukahori, Tokio; Katakura, Junichi

JAERI-Data/Code 2005-004, 54 Pages, 2005/07

JAERI-Data-Code-2005-004.pdf:1.63MB

The computer code, POD, was developed to calculate angle-differential cross sections and analyzing powers for shape-elastic scattering for collisions of neutron or light ions with target nucleus. The cross sections are computed with the optical model. Angle-differential cross sections for neutron inelastic scattering can also be calculated with the distorted-wave Born approximation. The optical model potential parameters are the most essential inputs for those model computations. The cross sections and analyzing powers are obtained by using the existing local or global parameters. The parameters can also be inputted by users. In this report, the theoretical formulas, the computational methods, and the input parameters are explained. The sample inputs and outputs are also presented.

Journal Articles

High-resolution resonance photoemission study of Ce (=Pt, Pd; =P, As, Sb)

Iwasaki, T.*; Sekiyama, Akira*; Yamasaki, Atsushi*; Okazaki, Makoto*; Kadono, Koji*; Utsunomiya, Hiroshi*; Imada, Shin*; Saito, Yuji; Muro, Takayuki*; Matsushita, Tomohiro*; et al.

Physical Review B, 65(19), p.195109_1 - 195109_9, 2002/05

https://doi.org/10.1103/PhysRevB.65.195109

Times Cited Count：25 Percentile：71.51(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

On the free energy structure of antiferromagnetic Potts model

Yokota, Terufumi

International Journal of Modern Physics B, 15(26), p.3409 - 3417, 2001/10

https://doi.org/10.1142/S0217979201007294

Times Cited Count：0 Percentile：0.00(Physics, Applied)

no abstracts in English

Journal Articles

Design of neutron monitor for wide energy range from thermal to 100MeV

Kim, E.; Endo, Akira; Yamaguchi, Yasuhiro; Yoshizawa, Michio; Nakamura, Takashi*; Shiomi, T.*

Proceedings of 10th International Congress of the International Radiation Protection Association (IRPA-10) (CD-ROM), 6 Pages, 2000/05

no abstracts in English

Journal Articles

Spatially dependent resonance self-shielding calculation method based on the equivalence theory in arbitrary heterogeneous systems

Kugo, Teruhiko; Kaneko, Kunio*

Mathematics and Computation, Reactor Physics and Environmental Analysis in Nuclear Applications, 2, p.2113 - 2122, 1999/09

no abstracts in English

JAEA Reports

Measurement of Doppler effect up to 2000 $^{circ}$ C at FCA, 4; Investigation on calculation model for the Doppler effect measurement with a heated foil using MVP code

Ando, Masaki; Okajima, Shigeaki

JAERI-Research 97-014, 22 Pages, 1997/03

JAERI-Research-97-014.pdf:0.77MB

no abstracts in English

Journal Articles

Compton scattering of 20- to 40-keV photons

Namito, Yoshihito*; Ban, Shuichi*; Hirayama, Hideo*; Nariyama, Nobuteru*; Nakashima, Hiroshi; Nakane, Yoshihiro; Sakamoto, Yukio; Sasamoto, Nobuo; Asano, Yoshihiro; Tanaka, Shunichi

Physical Review A, 51(4), p.3036 - 3043, 1995/04

A1995-0091.pdf:0.43MB

https://doi.org/10.1103/PhysRevA.51.3036

Times Cited Count：55 Percentile：90.77(Optics)

no abstracts in English

Journal Articles