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Journal Articles

Circular polarization measurement for individual gamma rays in capture reactions with intense pulsed neutrons

Endo, Shunsuke; Abe, Ryota*; Fujioka, Hiroyuki*; Ino, Takashi*; Iwamoto, Osamu; Iwamoto, Nobuyuki; Kawamura, Shiori*; Kimura, Atsushi; Kitaguchi, Masaaki*; Kobayashi, Ryuju*; et al.

European Physical Journal A, 60(8), p.166_1 - 166_10, 2024/08

https://doi.org/10.1140/epja/s10050-024-01392-6
 Times Cited Count：2 Percentile：78.45(Physics, Nuclear)

Journal Articles

Nondestructive determination of isotopic abundance using multi-energy nuclear resonance fluorescence driven by laser Compton scattering source

Omer, M.; Shizuma, Toshiyuki*; Hajima, Ryoichi*; Koizumi, Mitsuo

Journal of Applied Physics, 135(18), p.184903_1 - 184903_10, 2024/05

https://doi.org/10.1063/5.0197076
 Times Cited Count：0 Percentile：0.00(Physics, Applied)

Journal Articles

Spin and parity assignments for low-lying states in the odd-mass nucleus $$^{181}$$Ta

Shizuma, Toshiyuki*; Omer, M.; Hajima, Ryoichi*; Koizumi, Mitsuo

Physical Review C, 109(5), p.054320_1 - 054320_8, 2024/05

https://doi.org/10.1103/PhysRevC.109.054320
 Times Cited Count：0 Percentile：0.00(Physics, Nuclear)

Journal Articles

Parity assignment for low-lying dipole states in $$^{58}$$Ni

Shizuma, Toshiyuki*; Omer, M.; Hayakawa, Takehito*; Minato, Futoshi*; Matsuba, Shunya*; Miyamoto, Shuji*; Shimizu, Noritaka*; Utsuno, Yutaka

Physical Review C, 109(1), p.014302_1 - 014302_7, 2024/01

https://doi.org/10.1103/PhysRevC.109.014302
 Times Cited Count：3 Percentile：87.52(Physics, Nuclear)

Journal Articles

Cross section asymmetry of polarized $$gamma$$-ray elastic scattering

Omer, M.; Shizuma, Toshiyuki*; Koizumi, Mitsuo; Hajima, Ryoichi*; Hashimoto, Satoshi*; Miyamoto, Shuji*

LASTI Annual Report, 24, p.20 - 22, 2023/12

https://www.lasti.u-hyogo.ac.jp/annualreport/LASTI_Annual_Report_vol_24_2022.pdf

Journal Articles

Neutron capture cross-section measurement by mass spectrometry for Pb-204 irradiated in JRR-3

Nakamura, Shoji; Shibahara, Yuji*; Kimura, Atsushi; Endo, Shunsuke; Shizuma, Toshiyuki*

Journal of Nuclear Science and Technology, 60(9), p.1133 - 1142, 2023/09

https://doi.org/10.1080/00223131.2023.2172088
 Times Cited Count：0 Percentile：0.00(Nuclear Science & Technology)

In recent years, research has been advanced on lead-cooled fast reactors and accelerator drive systems, and it is required to improve the accuracy of the neutron capture cross section of Pb isotopes. Although $$^{204}$$Pb has a small natural abundance, it is of importance because it produces the long-lived radionuclide $$^{205}$$Pb (17.3 million years) by neutron capture reaction. However, it is difficult to measure its cross section by a conventional activation method using a nuclear reactor because the induced radioactivity of $$^{205}$$Pb is weak. Hence, the cross-section measurement was performed by applying mass spectrometry. This presentation gives the details of the experiment and the results obtained in the neutron capture cross-section measurement of $$^{204}$$Pb using mass spectroscopy.

Journal Articles

Impact of the temperature on the non-destructive nuclide assay in the transmission NRF method

Omer, M.; Shizuma, Toshiyuki*; Koizumi, Mitsuo; Taira, Yoshitaka*; Zen, H.*; Ogaki, Hideaki*; Hajima, Ryoichi

UVSOR-50, P. 37, 2023/08

https://www.uvsor.ims.ac.jp/eng/activity/2022/pdf/ActivityReport2022.pdf

no abstracts in English

Journal Articles

Measurement of the spatial polarization distribution of circularly polarized gamma rays produced by inverse Compton scattering

Taira, Yoshitaka*; Endo, Shunsuke; Kawamura, Shiori*; Nambu, Taro*; Okuizumi, Mao*; Shizuma, Toshiyuki*; Omer, M.; Zen, H.*; Okano, Yasuaki*; Kitaguchi, Masaaki*

Physical Review A, 107(6), p.063503_1 - 063503_10, 2023/06

https://doi.org/10.1103/PhysRevA.107.063503
 Times Cited Count：5 Percentile：66.61(Optics)

no abstracts in English

Journal Articles

Accurate estimation of spectral density of LCS gamma-ray source

Omer, M.; Shizuma, Toshiyuki*; Hajima, Ryoichi*; Koizumi, Mitsuo

Dai-43-Kai Nihon Kaku Busshitsu Kanri Gakkai Nenji Taikai Kaigi Rombunshu (Internet), 3 Pages, 2022/11

Journal Articles

Low-lying dipole strength distribution in $$^{204}$$Pb

Shizuma, Toshiyuki*; Endo, Shunsuke; Kimura, Atsushi; Massarczyk, R.*; Schwengner, R.*; Beyer, R.*; Hensel, T.*; Hoffmann, H.*; Junghans, A.*; R$"o$mer, K.*; et al.

Physical Review C, 106(4), p.044326_1 - 044326_11, 2022/10

https://doi.org/10.1103/PhysRevC.106.044326
 Times Cited Count：2 Percentile：18.16(Physics, Nuclear)

no abstracts in English

Journal Articles

Calculating off-axis efficiency of coaxial HPGe detectors by Monte Carlo simulation

Omer, M.; Shizuma, Toshiyuki*; Hajima, Ryoichi*; Koizumi, Mitsuo

Radiation Physics and Chemistry, 198, p.110241_1 - 110241_7, 2022/09

https://doi.org/10.1016/j.radphyschem.2022.110241
 Times Cited Count：4 Percentile：53.26(Chemistry, Physical)

Journal Articles

Evaluation of analyzing power of gamma-ray polarimeter

Endo, Shunsuke; Shizuma, Toshiyuki*; Zen, H.*; Taira, Yoshitaka*; Omer, M.; Kawamura, Shiori*; Abe, Ryota*; Okudaira, Takuya*; Kitaguchi, Masaaki*; Shimizu, Hirohiko*

UVSOR-49, P. 38, 2022/08

Journal Articles

Isomer production ratio of the $$^{112}$$Cd($$n,gamma$$)$$^{113}$$Cd reaction in an $$s$$-process branching point

Hayakawa, Takehito*; Toh, Yosuke; Kimura, Atsushi; Nakamura, Shoji; Shizuma, Toshiyuki*; Iwamoto, Nobuyuki; Chiba, Satoshi*; Kajino, Toshitaka*

Physical Review C, 103(4), p.045801_1 - 045801_5, 2021/04

https://doi.org/10.1103/PhysRevC.103.045801
 Times Cited Count：1 Percentile：13.63(Physics, Nuclear)

Journal Articles

High-spin states in $$^{35}$$S

Go, Shintaro*; Ideguchi, Eiji*; Yokoyama, Rin*; Aoi, Nori*; Azaiez, F.*; Furutaka, Kazuyoshi; Hatsukawa, Yuichi; Kimura, Atsushi; Kisamori, Keiichi*; Kobayashi, Motoki*; et al.

Physical Review C, 103(3), p.034327_1 - 034327_8, 2021/03

https://doi.org/10.1103/PhysRevC.103.034327
 Times Cited Count：4 Percentile：44.13(Physics, Nuclear)

Journal Articles

Low-lying electric and magnetic dipole strengths in $$^{207}$$Pb

Shizuma, Toshiyuki*; Minato, Futoshi; Omer, M.*; Hayakawa, Takehito*; Ogaki, Hideaki*; Miyamoto, Shuji*

Physical Review C, 103(2), p.024309_1 - 024309_8, 2021/02

AA2020-0675.pdf:0.29MB

https://doi.org/10.1103/PhysRevC.103.024309
 Times Cited Count：5 Percentile：51.80(Physics, Nuclear)

Low-lying dipole transitions in $$^{207}$$Pb were measured via nuclear photon scattering using a quasi-monochromatic, linearly polarized photon beam. The electric ($$E1$$) and magnetic ($$M1$$) dipole strengths were extracted for excitation energies up to 6.8 MeV. The present ($$vec{gamma}$$,$$gamma'$$) results, combined with ($$gamma$$,$$n$$) data from the literature, were used to investigate the $$E1$$ and $$M1$$ photoabsorption cross sections near the neutron separation energy by comparison with predictions of the particle-vibration coupling on top of the quasi-particle random phase approximation (PVC+QRPA).

Journal Articles

Compton scattering of quasi-monochromatic $$gamma$$-ray beam

Omer, M.; Shizuma, Toshiyuki*; Hajima, Ryoichi*

Nuclear Instruments and Methods in Physics Research A, 951, p.162998_1 - 162998_6, 2020/01

https://doi.org/10.1016/j.nima.2019.162998
 Times Cited Count：3 Percentile：29.83(Instruments & Instrumentation)

Journal Articles

Testing enrichment meter based on nuclear resonance fluorescence

Omer, M.; Shizuma, Toshiyuki*; Hajima, Ryoichi*; Koizumi, Mitsuo

Nihon Kaku Busshitsu Kanri Gakkai Dai-40-Kai Nenji Taikai Puroshideingusushu, p.59 - 62, 2019/11

Journal Articles

Spin and parity determination of the 3.004-MeV level in $$^{27}$$Al; Its low-lying multiplet structure

Shizuma, Toshiyuki*; Omer, M.; Hajima, Ryoichi*; Shimizu, Noritaka*; Utsuno, Yutaka

Physical Review C, 100(1), p.014307_1 - 014307_6, 2019/07

https://doi.org/10.1103/PhysRevC.100.014307
 Times Cited Count：8 Percentile：57.56(Physics, Nuclear)

Journal Articles

Dipole strength distribution in $$^{206}$$Pb for the evaluation of the neutron capture cross section of $$^{205}$$Pb

Shizuma, Toshiyuki; Iwamoto, Nobuyuki; Makinaga, Ayano*; Massarczyk, R.*; Schwengner, R.*; Beyer, R.*; Bemmerer, D.*; Dietz, M.*; Junghans, A.*; K$"o$gler, T.*; et al.

Physical Review C, 98(6), p.064317_1 - 064317_12, 2018/12

https://doi.org/10.1103/PhysRevC.98.064317
 Times Cited Count：11 Percentile：62.84(Physics, Nuclear)

The dipole strength distribution of $$^{206}$$Pb was investigated via a nuclear resonance fluorescence experiment using bremsstrahlung produced with an electron beam at a kinetic energy of 10.5 MeV at the linear accelerator ELBE. We identified 88 states resonantly excited at energies from 3.7 to 8.2 MeV. The photo-absorption cross sections were extracted from the measured scattering cross sections and the branching ratios. The present ($$gamma$$,$$gamma'$$) data combined with ($$gamma$$,$$n$$) data from the literature were used as an input to the statistical calculation code CCONE to evaluate the neutron capture cross section of the unstable $$^{205}$$Pb nucleus.

Journal Articles

Evaluation of neutron capture cross section on $$^{205}$$Pb with photonuclear data

Iwamoto, Nobuyuki; Shizuma, Toshiyuki*

EPJ Web of Conferences, 178, p.06004_1 - 06004_3, 2018/05

https://doi.org/10.1051/epjconf/201817806004
 Times Cited Count：0 Percentile：0.00(Optics)

323 (Records 1-20 displayed on this page)