Refine your search:     
Report No.
 - 
Search Results: Records 1-17 displayed on this page of 17
  • 1

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

Joint Session of Nuclear Data Subcommittee and Sigma Special Advisory Committee; Present status and future of nuclear data evaluation code in Japan, 3; Development of DEURACS for prediction of deuteron-induced reaction cross section

Nakayama, Shinsuke

Kaku Deta Nyusu (Internet), (120), p.19 - 25, 2018/06

Toward development of accurate deuteron nuclear data, we have been developing a computational code dedicated for the deuteron-induced reaction, called DEURACS. The author presented the developmental status and the future outlook of DEURACS in the joint session of nuclear data subcommittee and sigma special advisory committee, and contributed the outline of the presentation to Nuclear Data News. From our preceding work, it has become possible to predict the $$(d,xn)$$ reactions on light nuclei and the $$(d,xt)$$ reactions. These reactions are important in relation to evaluation of neutron sources and tritium production, respectively. In the future, we plan to improve theoretical models implemented in DEURACS for accurate prediction of nuclide production cross-section on medium-heavy nuclei.

Journal Articles

Theoretical model analysis of $$(d,xn)$$ reactions on $$^7$$Li at 25, 40, and 102 MeV

Sadamatsu, Hiroki*; Nakayama, Shinsuke; Watanabe, Yukinobu*; Iwamoto, Osamu; Ogata, Kazuyuki*

JAEA-Conf 2017-001, p.135 - 140, 2018/01

In recent years, the demand for intense neutron sources has been increasing in various applications such as nuclear transmutation of high-level radioactive waste and medical radioisotopes production. Deuteron accelerator-based neutron sources are promised as one of the candidates. Therefore, we have developed a code system dedicated for the deuteron-induced reactions, called DEURACS. In the present work, we focus on deuteron-induced neutron production from $$^7$$Li target. The calculated double differential cross sections for $$(d,xn)$$ reactions at incident energies of 25, 40, and 102 MeV are compared with the measured ones, and the applicability of DEURACS is discussed.

Journal Articles

Modelling and analysis of nucleon emission from deuteron-induced reactions at incident energies up to 100 MeV

Nakayama, Shinsuke; Kono, Hiroshi*; Watanabe, Yukinobu*; Iwamoto, Osamu; Ye, T.*; Ogata, Kazuyuki*

EPJ Web of Conferences (Internet), 122, p.04004_1 - 04004_9, 2016/06

 Times Cited Count:4 Percentile:6.08

In recent years, accelerator neutron sources using deuteron-induced reactions on $$^7$$Li, $$^9$$Be, $$^{12}$$C, etc., are proposed for applications in various fields. Engineering design of such facilities requires deuteron nuclear data in a broad incident energy range. We have developed a computational code system dedicated for deuteron nuclear data evaluation in combination with some theoretical models. The code system has been applied to analyses of double-differential $$(d,xp)$$ cross sections for $$^{12}$$C, $$^{27}$$Al, and $$^{58}$$Ni at incident energies up to 100 MeV. On the other hand, there is few experimental double-differential $$(d,xn)$$ cross sections. Therefore, double-differential thick target neutron yields for light nuclei such as $$^9$$Be and $$^{12}$$C are calculated and compared with experimental data. The presentation will show the validation result of the present modelling for nucleon emissions from deuteron-induced reactions through comparison with available experimental data.

Journal Articles

New approach to measure double-differential charged-particle emission cross sections of several materials for a fusion reactor

Kondo, Keitaro; Takagi, Satoshi*; Murata, Isao*; Miyamaru, Hiroyuki*; Takahashi, Akito*; Kubota, Naoyoshi; Ochiai, Kentaro; Nishitani, Takeo

Fusion Engineering and Design, 81(8-14), p.1527 - 1533, 2006/02

 Times Cited Count:12 Percentile:29.75(Nuclear Science & Technology)

In a fusion reactor development, double-differential charged-particle emission cross sections(DDXc) are necessary to estimate nuclear heating and material damages of candidate materials irradiated with neutrons. Especially in light nuclei such as Be, Li, and C, nuclear reactions are complicated and difficult to estimate energy spectra of emitted particles based only on theoretical calculations Therefore development of a new technique for precise measurements of DDXc is quite important. Recently we successfully developed a new spectrometer for measurement of DDXc using a pencil-beam DT neutron source of FNS in JAERI. In the present study we carried out measurements of DDXc of $$^{9}$$Be, $$^{12}$$C, $$^{19}$$F, and $$^{27}$$Al using the spectrometer. The present technique was valid from the result of measurement for the $$^{27}$$Al(n,x$$alpha$$) reactions. Slight differences appeared between measured data and evaluation or previous experimental values for $$^{9}$$Be(n,x$$alpha$$) reactions at backward scattering angle and in lower energy region.

Journal Articles

JENDL Fusion File 99

Chiba, Satoshi; Fukahori, Tokio; Shibata, Keiichi; Yu, B.*; Kosako, Kazuaki*; Yamamuro, Nobuhiro*

Journal of Nuclear Science and Technology, 39(2), p.187 - 194, 2002/02

 Times Cited Count:16 Percentile:25.85(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Measurement and theoretical analysis of neutron elastic scattering and inelastic reactions leading to a three-body final state for $$^{6}$$Li at 10 to 20 MeV

Chiba, Satoshi; *; *; *; Matsuyama, Shigeo*; Shibata, Keiichi; Iwamoto, Osamu; A.J.Koning*; G.M.Hale*; M.B.Chadwick*; et al.

Physical Review C, 58(4), p.2205 - 2216, 1998/10

 Times Cited Count:15 Percentile:33.73(Physics, Nuclear)

no abstracts in English

Journal Articles

Measurement and evaluation of nuclear data

Takahashi, Akito*; Shibata, Keiichi; Ikeda, Yujiro

Purazuma, Kaku Yugo Gakkai-Shi, 71(11), p.1113 - 1122, 1995/11

no abstracts in English

Journal Articles

Spallation neutron measurement by the time-of-flight method with a short flight path

*; *; *; Shigyo, Nobuhiro*; Maehata, Keisuke*; Meigo, Shinichiro; Takada, Hiroshi; Chiba, Satoshi; Numajiri, M.*; Nakamura, Takashi*; et al.

Journal of Nuclear Science and Technology, 32(9), p.827 - 833, 1995/09

 Times Cited Count:27 Percentile:8.02(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Development of high energy transport code HETC-3STEP applicable to the nuclear reaction with incident energies above 20MeV

Yoshizawa, Nobuaki*; *; Takada, Hiroshi

Journal of Nuclear Science and Technology, 32(7), p.601 - 607, 1995/07

 Times Cited Count:26 Percentile:8.59(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Benchmark calculation for double differential cross section of (p,xn) and (p,xp) reactions

Takada, Hiroshi; *; Yoshizawa, Nobuaki*; Nakahara, Yasuaki

Journal of Nuclear Science and Technology, 31(1), p.80 - 82, 1994/01

 Times Cited Count:1 Percentile:71.08(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Microscopic cross section calculations with NUCLEUS and HETC-3STEP

Takada, Hiroshi; Nakahara, Yasuaki; ; *; Yoshizawa, Nobuaki*

Proc. of NEA/NSC Specialists Meeting on Intermediate Energy Nuclear Data:Models and Codes, 0, p.121 - 136, 1994/00

no abstracts in English

JAEA Reports

Polarized proton induced reactions on lithium isotopes around 14 MeV

*; *; *; Watanabe, Yukinobu*; *; *; *; *; *; *; et al.

JAERI-M 91-009, 56 Pages, 1991/02

JAERI-M-91-009.pdf:1.73MB

no abstracts in English

JAEA Reports

Measurement of double differential neutron emission cross sections at 14.1 MeV for Ca, Mn, Co and W

Takahashi, Akito*; Sasaki, Yasuhiro*; Maekawa, Fujio*; Sugimoto, Hisashi*

JAERI-M 89-214, 58 Pages, 1989/12

JAERI-M-89-214.pdf:1.31MB

no abstracts in English

JAEA Reports

Oral presentation

High-energy nuclear data library JENDL-4.0/HE

Kunieda, Satoshi; Iwamoto, Osamu; Iwamoto, Nobuyuki; Minato, Futoshi; Okamoto, Tsutomu; Sato, Tatsuhiko; Nakashima, Hiroshi; Iwamoto, Yosuke; Iwamoto, Hiroki; Kitatani, Fumito; et al.

no journal, , 

Neutron- and proton-induced evaluated nuclear data are required in a wide energy range for the design of accelerator applications. New evaluations are performed with recent progresses in the optical and pre-equilibrium model calculations. We also evaluated cross-sections for p + $$^{6,7}$$Li and p + $$^{8}$$Be which are highly requested from medical field. Our present high-energy nuclear data library, JENDL-4.0/HE, includes cross-sections for 132 nuclei up to 200 MeV. In this talk, we present the evaluation methods, evaluated double-differential cross-sections and results of benchmark calculations.

Oral presentation

Theoretical model analysis of 102-MeV deuteron-induced reactions using DEURACS

Sadamatsu, Hiroki*; Nakayama, Shinsuke; Watanabe, Yukinobu*; Araki, Shohei*; Iwamoto, Osamu; Ogata, Kazuyuki*

no journal, , 

102-MeV deuteron-induced neutron production reactions on Li, Be, C, Al, Cu, Nb are calculated with DEURACS, which is a code system dedicated to deuteron-induced reactions. The calculation results are compared with the latest experimental data and the applicability of DEURACS to deuteron-induced neutron production reactions at around 100 MeV are investigated. As a result, the calculation using DEURACS reproduced experimental double-differential neutron production cross sections and its applicability to the reactions are validated.

Oral presentation

Development of DEURACS for prediction of deuteron-induced reaction cross section

Nakayama, Shinsuke

no journal, , 

Since deuteron is a weakly bound nucleus consisting of a proton and a neutron, it easily break up and emit a neutron while interacting with other nuclei. By utilizing this property, highly efficient neutron sources using deuteron accelerators have been proposed. Accurate and comprehensive nuclear data of deuteron-induced reactions are indispensable for the engineering design of such facilities. However, TENDL, which is the only deuteron nuclear data file currently available is not necessarily enough for the requirement. Under the above situation, toward development of an accurate deuteron nuclear data file, we have been developing a code system dedicated for deuteron-induced reactions, called DEURACS. The present status and the future outlook of development of DEURACS will be presented.

17 (Records 1-17 displayed on this page)
  • 1