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Journal Articles

Measurement of the $$^{77}$$Se($$gamma$$, n) cross section and uncertainty evaluation of the $$^{79}$$Se(n, $$gamma$$) cross section

Kitatani, Fumito; Harada, Hideo; Goko, Shinji*; Iwamoto, Nobuyuki; Utsunomiya, Hiroaki*; Akimune, Hidetoshi*; Toyokawa, Hiroyuki*; Yamada, Kawakatsu*; Igashira, Masayuki*

Journal of Nuclear Science and Technology, 53(4), p.475 - 485, 2016/04

https://doi.org/10.1080/00223131.2015.1056760
 Times Cited Count：5 Percentile：43.41(Nuclear Science & Technology)

Journal Articles

Cross section measurement for photo nuclear reaction using laser Compton-scattering $$gamma$$-ray

Kitatani, Fumito; Harada, Hideo; Goko, Shinji*; Utsunomiya, Hiroaki*; Akimune, Hidetoshi*; Toyokawa, Hiroyuki*; Yamada, Kawakatsu*

JAEA-Conf 2014-002, p.57 - 62, 2015/02

https://doi.org/10.11484/jaea-conf-2014-002

Journal Articles

The $$gamma$$SF method

Utsunomiya, Hiroaki*; Goriely, S.*; Akimune, Hidetoshi*; Yamagata, Tamio*; Kondo, Takeo*; Iwamoto, Chihiro*; Okamoto, Akiyuki*; Harada, Hideo; Kitatani, Fumito; Goko, Shinji*; et al.

AIP Conference Proceedings 1377, p.255 - 259, 2011/10

https://doi.org/10.1063/1.3628388
 Times Cited Count：0 Percentile：0.05(Astronomy & Astrophysics)

Journal Articles

Application of the $$gamma$$SF method to palladium

Utsunomiya, Hiroaki*; Goriely, S.*; Arteaga, D. P.*; Daoutidis, I.*; Akimune, Hidetoshi*; Yamagata, Tamio*; Kondo, Takeo*; Iwamoto, Chihiro*; Kamata, Masaki*; Ito, Osamu*; et al.

AIP Conference Proceedings 1377, p.450 - 452, 2011/10

https://doi.org/10.1063/1.3628442
 Times Cited Count：0 Percentile：0.05(Astronomy & Astrophysics)

Journal Articles

Measurement of ($$gamma$$,$$n$$) cross sections of Se isotopes using laser-Compton scattering $$gamma$$-rays

Kitatani, Fumito; Harada, Hideo; Goko, Shinji*; Utsunomiya, Hiroaki*; Akimune, Hidetoshi*; Toyokawa, Hiroyuki*; Yamada, Kawakatsu*

Journal of the Korean Physical Society, 59(2), p.1836 - 1839, 2011/08

https://doi.org/10.3938/jkps.59.1836
 Times Cited Count：2 Percentile：20.16(Physics, Multidisciplinary)

The photo-nuclear cross section of Se isotopes ($$^{80}$$Se, $$^{78}$$Se, $$^{77}$$Se, $$^{76}$$Se) were measured with laser-Compton scattering (LCS) $$gamma$$-rays to supply fundamental data for the estimation of the inverse reaction cross sections, i.e., the $$^{79}$$Se($$n$$,$$gamma$$) $$^{80}$$Se cross section. An enriched Se isotope samples were irradiated with LCS $$gamma$$-rays whose maximum energy was varied from each near neutron separation energy to 16.0 MeV. The energy distributions of LCS $$gamma$$-rays were precisely determined using a high-resolution high-energy photon spectrometer (HHS). Emitted neutrons were detected by a high efficiency 4$$pi$$-$$^{3}$$He detector. The excitation function of the photo-nuclear cross section of Se isotopes were determined for the energy range form each near neutron separation energy to near 16.0 MeV. The energy point corresponding to each cross section was deduced using the accurately determined energy distribution of LCS $$gamma$$-rays.

Journal Articles

The "Study on nuclear data by using a high intensity pulsed neutron source for advanced nuclear system" nuclear data project and the characteristics of the neutron beam line for the capture cross section experiments at J-PARC

Kiyanagi, Yoshiaki*; Kino, Koichi*; Furusaka, Michihiro*; Hiraga, Fujio*; Kamiyama, Takashi*; Kato, Kiyoshi*; Igashira, Masayuki*; Katabuchi, Tatsuya*; Mizumoto, Motoharu*; Oshima, Masumi; et al.

Journal of the Korean Physical Society, 59(2), p.1781 - 1784, 2011/08

https://doi.org/10.3938/jkps.59.1781
 Times Cited Count：13 Percentile：62.2(Physics, Multidisciplinary)

The project of the comprehensive nuclear data research for the development of the advanced reactor systems had been executed successfully by eight organizations from 2005 to 2009. In this project, we constructed the pulsed neutron beamline that was aimed to obtain neutron capture cross-sections of long-lived fission products and minor actinides accurately. The energy spectra, spatial distributions, and pulses of the beam were studied by measurements and simulation calculations, and they were found to be consistent with those of the beamline design. In this paper, we present the overview of the project and the properties of the neutron beam provided by this beam line.

Journal Articles

The $$gamma$$SF method; Determination of radiative neutron-capture cross section for unstable nuclei

Utsunomiya, Hiroaki*; Goriely, S.*; Akimune, Hidetoshi*; Harada, Hideo; Kitatani, Fumito; Goko, Shinji*; Toyokawa, Hiroyuki*; Yamada, Kawakatsu*; Lui, Y.-W.*

Journal of the Korean Physical Society, 59(2), p.1713 - 1716, 2011/08

https://doi.org/10.3938/jkps.59.1713
 Times Cited Count：2 Percentile：20.16(Physics, Multidisciplinary)

Journal Articles

Measurement of $$^{76}$$Se and $$^{78}$$Se ($$gamma$$, n) cross sections

Kitatani, Fumito; Harada, Hideo; Goko, Shinji*; Utsunomiya, Hiroaki*; Akimune, Hidetoshi*; Toyokawa, Hiroyuki*; Yamada, Kawakatsu*

Journal of Nuclear Science and Technology, 48(7), p.1017 - 1024, 2011/07

https://doi.org/10.3327/jnst.48.1017
 Times Cited Count：19 Percentile：80.18(Nuclear Science & Technology)

Journal Articles

$$gamma$$-ray strength function method and its application to $$^{107}$$Pd

Utsunomiya, Hiroaki*; Goriely, S.*; Akimune, Hidetoshi*; Harada, Hideo; Kitatani, Fumito; Goko, Shinji*; Toyokawa, Hiroyuki*; Yamada, Kawakatsu*; Kondo, Takeo*; Ito, Osamu*; et al.

Physical Review C, 82(6), p.064610_1 - 064610_5, 2010/12

https://doi.org/10.1103/PhysRevC.82.064610
 Times Cited Count：40 Percentile：88.69(Physics, Nuclear)

The $$gamma$$-ray strength function method ($$gamma$$SF method) is devised to indirectly determine radiative neutron capture cross sections for radioactive nuclei. This method is applied here to the $$^{107}$$Pd case. Photoneutron cross sections were measured for $$^{105,106,108}$$Pd near neutron threshold with quasi-monochromatic laser-Compton-scattering $$gamma$$-ray beams. These photoneutron cross sections as well as the reverse radiative neutron capture cross sections for $$^{104,105}$$Pd are used to provide constraints on the $$^{107}$$Pd(n,$$gamma$$) $$^{108}$$Pd cross section.

Journal Articles

Striking behavior of photoneutron cross sections for $$^{90}$$Zr near threshold

Utsunomiya, Hiroaki*; Goriely, S.*; Akimune, Hidetoshi*; Yamagata, Tamio*; Kondo, Takeo*; Iwamoto, Chihiro*; Ito, Osamu*; Kamata, Masaki*; Io, Masanori*; Kususe, Koichi*; et al.

AIP Conference Proceedings 1377, p.447 - 449, 2010/10

https://doi.org/10.1063/1.3628441
 Times Cited Count：0 Percentile：0.05(Astronomy & Astrophysics)

Journal Articles

Measurement of the $$^{80}$$Se($$gamma$$, n) cross section using laser-Compton scattering $$gamma$$-rays

Kitatani, Fumito; Harada, Hideo; Goko, Shinji; Utsunomiya, Hiroaki*; Akimune, Hidetoshi*; Kaihori, Takeshi*; Toyokawa, Hiroyuki*; Yamada, Kawakatsu*

Journal of Nuclear Science and Technology, 47(4), p.367 - 375, 2010/04

https://doi.org/10.3327/jnst.47.367
 Times Cited Count：22 Percentile：81.36(Nuclear Science & Technology)

Journal Articles

Photoneutron cross sections for $$^{96}$$Zr; A Systematic experimental study of photoneutron and radiative neutron capture cross sections for zirconium isotopes

Utsunomiya, Hiroaki*; Goriely, S.*; Akimune, Hidetoshi*; Harada, Hideo; Kitatani, Fumito; Goko, Shinji; Toyokawa, Hiroyuki*; Yamada, Kawakatsu*; Kondo, Takeo*; Ito, Osamu*; et al.

Physical Review C, 81(3), p.035801_1 - 035801_5, 2010/03

https://doi.org/10.1103/PhysRevC.81.035801
 Times Cited Count：37 Percentile：87.64(Physics, Nuclear)

This manuscript presents photoneutron cross sections for $$^{96}$$Zr. Combining the present data with the previously published Zr data, we investigated the $$gamma$$-ray strength function for zirconium isotopes systematically. We present a unified picture of the $$gamma$$-ray strength function that consists of the HFB + QRPA model of E1 strength accompanied by an extra M1 strength attributable to giant M1 resonance. It is shown that the $$gamma$$-ray strength function reproduces both (g,n) and (n,g) cross sections for Zr isotopes consistently.

Journal Articles

Measurements of the $$^{152}$$Sm($$gamma$$,n) cross section with laser-Compton scattering $$gamma$$ rays and the photon difference method

Hara, Kaoru; Harada, Hideo; Kitatani, Fumito; Goko, Shinji*; Hohara, Shinya*; Kaihori, Takeshi*; Makinaga, Ayano*; Utsunomiya, Hiroaki*; Toyokawa, Hiroyuki*; Yamada, Kawakatsu*

Journal of Nuclear Science and Technology, 44(7), p.938 - 945, 2007/07

https://doi.org/10.3327/jnst.44.938
 Times Cited Count：40 Percentile：91.43(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Photonuclear reaction cross section of $$^{152}$$Sm

Hara, Kaoru; Harada, Hideo; Kitatani, Fumito; Goko, Shinji*; Hohara, Shinya*; Kaihori, Takeshi*; Makinaga, Ayano*; Utsunomiya, Hiroaki*; Toyokawa, Hiroyuki*; Yamada, Kawakatsu*; et al.

EUR-22794-EN, p.65 - 68, 2007/00

Neutron capture cross sections of the unstable nuclei $$^{151}$$Sm (t$$_{1/2}$$=90yr) are the fundamental data for the nuclear transmutation, since the $$^{151}$$Sm is one of radioactive fission products in the nuclear waste. On the other hand, the branching point nucleus $$^{151}$$Sm is important for characterizing the slow neutron capture process (s-process) nucleosynthesis in the AGB stars. The cross sections of the inverse $$^{152}$$Sm($$gamma$$,n)$$^{151}$$Sm reaction were measured with the laser-Compton scattering (LCS) $$gamma$$ rays at 8.3-12.4 MeV. Quasi-monochromatic beams of LCS photons irradiated an enriched $$^{152}$$Sm$$_2$$O$$_3$$ sample. The emitted neutrons were detected with a 4$$pi$$ neutron detector consisting of 20 $$^{3}$$He proportional counters embedded in a polyethylene moderator. The $$^{197}$$Au($$gamma$$,n) reaction cross sections were also measured as a standard. In the data analysis, the ($$gamma$$,n) cross sections are deduced with two methods. The present data for $$^{152}$$Sm and $$^{197}$$Au are compared with the previous data compiled in the IAEA document and the calculation with a nuclear reaction code TALYS. The neutron capture cross sections for $$^{151}$$Sm in the keV-MeV energy range are evaluated with the present photonuclear data for $$^{152}$$Sm as constraint in the statistical model calculations.

Oral presentation

Measurements of $$^{152}$$Sm($$gamma$$,n) reaction cross section with laser-Compton scattering $$gamma$$ rays

Hara, Kaoru; Kitatani, Fumito; Harada, Hideo; Akimune, Hidetoshi*; Utsunomiya, Hiroaki*; Kaihori, Takeshi*; Goko, Shinji*; Hohara, Shinya*; Makinaga, Ayano*; Yamagata, Tamio*; et al.

no journal, , 

no abstracts in English

Oral presentation

Measurement of cross section of the $$^{80}$$Se($$gamma$$,n) reaction by using LCS $$gamma$$-ray

Kitatani, Fumito; Harada, Hideo; Oshima, Masumi; Utsunomiya, Hiroaki*; Kaihori, Takeshi*; Yamada, Kawakatsu*; Toyokawa, Hiroyuki*; Kiyanagi, Yoshiaki*

no journal, , 

no abstracts in English

Oral presentation

Measurement and analysis of cross section of the $$^{80}$$Se($$gamma$$,n) reaction by using LCS $$gamma$$-ray

Kitatani, Fumito; Harada, Hideo; Goko, Shinji; Kaihori, Takeshi*; Akimune, Hidetoshi*; Utsunomiya, Hiroaki*; Toyokawa, Hiroyuki*; Yamada, Kawakatsu*

no journal, , 

no abstracts in English

Oral presentation

The Analysis results of cross section of the $$^{80}$$Se($$gamma$$,n) reaction by using LCS $$gamma$$-ray

Kitatani, Fumito; Harada, Hideo; Goko, Shinji; Kaihori, Takeshi*; Akimune, Hidetoshi*; Utsunomiya, Hiroaki*; Toyokawa, Hiroyuki*; Yamada, Kawakatsu*

no journal, , 

no abstracts in English

Oral presentation

Measurements of the cross sections of $$^{76,78}$$Se($$gamma$$,n) reactions by using LCS $$gamma$$-ray

Kitatani, Fumito; Harada, Hideo; Goko, Shinji; Kaihori, Takeshi*; Akimune, Hidetoshi*; Utsunomiya, Hiroaki*; Toyokawa, Hiroyuki*; Yamada, Kawakatsu*

no journal, , 

no abstracts in English

Oral presentation

Measurements of the cross sections of $$^{77}$$Se($$gamma$$,n) reactions by using LCS $$gamma$$-ray

Kitatani, Fumito; Harada, Hideo; Goko, Shinji; Akimune, Hidetoshi*; Utsunomiya, Hiroaki*; Toyokawa, Hiroyuki*; Yamada, Kawakatsu*

no journal, , 

no abstracts in English

22 (Records 1-20 displayed on this page)