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Journal Articles

Multi-quasiparticle excitations in $$^{145}$$Tb

Zheng, Y.*; Zhou, X. H.*; Zhang, Y. H.*; Hayakawa, Takehito; Oshima, Masumi; Toh, Yosuke; Shizuma, Toshiyuki; Katakura, Junichi; Hatsukawa, Yuichi; Matsuda, Makoto; et al.

Journal of Physics G; Nuclear and Particle Physics, 30(4), p.465 - 479, 2004/04

 Times Cited Count:8 Percentile:49.51(Physics, Nuclear)

no abstracts in English

Journal Articles

High-$$K$$ negative parity states in $$^{184}$$Os

Shizuma, Toshiyuki; Stevenson, P. D.*; Walker, P. M.*; Toh, Yosuke; Hayakawa, Takehito; Oshima, Masumi; Furuno, Kohei*; Komatsubara, Tetsuro*

Physical Review C, 65(6), p.064310_1 - 064310_12, 2002/06

 Times Cited Count:13 Percentile:39.02(Physics, Nuclear)

High-spin states in $$^{184}$$Os have been studied using the $$^{170}$$Er($$^{18}$$O,4n) reaction at a beam energy of 85 MeV. Several new negative parity levels including a 48-ns $$K^pi=(18^-)$$ isomer have been identified. Nilsson configurations for the levels are assigned by comparison with multi-quasiparticle calculations. Potential-energy-surface calculations show an increasing influence of triaxiality in nuclear shapes at higher spins. The decay rate of the $$K^pi=(18^-)$$ isomer is discussed in relation to the role of the $$K$$ quantum number.

Journal Articles

Configuration-dependent band structures in odd-odd $$^{180}$$Ir

Zhang, Y.*; Hayakawa, Takehito; Oshima, Masumi; Katakura, Junichi; Hatsukawa, Yuichi; Matsuda, Makoto; Kusakari, Hideshige*; Sugawara, Masahiko*; Komatsubara, Tetsuro*; Furuno, Kohei*

Physical Review C, 65(1), p.014302_1 - 014302_15, 2002/01

 Times Cited Count:20 Percentile:27.45(Physics, Nuclear)

no abstracts in English

Journal Articles

Multi-quasiparticle states and ${it K}$-forbidden transitions in $$^{183}$$Os

Shizuma, Toshiyuki; Matsuura, Katsuyuki*; Toh, Yosuke; Hayakawa, Takehito; Oshima, Masumi; Hatsukawa, Yuichi; Matsuda, Makoto; Furuno, Kohei*; Sasaki, Yasuyuki*; Komatsubara, Tetsuro*; et al.

Nuclear Physics A, 696(3-4), p.337 - 370, 2001/12

 Times Cited Count:18 Percentile:26.93

High-spin states in $$^{183}$$Os have been studied using the 170Er(18O,5n) reaction at a beam energy of 85 MeV. Nine rotational bands based on 1-, 3-, 5- and 7-quasiparticle excitations have been observed. Nilsson configurations are assigned for the newly observed bands using g-factors deduced from M1/E2 branching ratios within the bands. In addition, two isomers with K=(43/2+) and (43/2-) have been identified. The K=(43/2+) isomer decays directly to the K=9/2+ ground state band with a large difference in the $$K$$ quantum number, $$mitDelta K=$$17. The decay rates are disccused in terms of a tunneling model where high-$$K$$ (isomeric) and low-$$K$$ states interact via fluctuations towards triaxial nuclear shapes.

Journal Articles

A $$gamma$$-ray detector array for joint spectroscopy experiments at the JAERI tandem-booster facility

Oshima, Masumi; Furuno, Kohei*; Komatsubara, Tetsuro*; *; Hayakawa, Takehito*; *; ; ; *; *; et al.

Nuclear Instruments and Methods in Physics Research A, 421(1-2), p.211 - 226, 1999/00

 Times Cited Count:94 Percentile:1.19

no abstracts in English

Journal Articles

Damage evolution in TiC crystals during hydrogen and helium dual-ion beam irradiation

Hojo, Kiichi; *; Furuno, Shigemi*; *; Kushita, Kohei; Sasajima, Naohiko*

Nuclear Instruments and Methods in Physics Research B, 148(1-4), p.720 - 725, 1999/00

 Times Cited Count:4 Percentile:60.19

no abstracts in English

Journal Articles

Measurement of the lifetime of the first 2$$^{+}$$ state in $$^{124}$$Ba

*; Furuno, Kohei*; *; ; *; *; *; *; *; Komatsubara, Tetsuro*; et al.

European Physical Journal A, 2(1), p.13 - 15, 1998/00

 Times Cited Count:9 Percentile:48.24(Physics, Nuclear)

no abstracts in English

Journal Articles

EELS analysis of SiC crystals under hydrogen and helium dual-ion beam irradiation

Hojo, Kiichi; *; Furuno, Shigemi; Kushita, Kohei; *; Sasajima, Naohiko*

Nuclear Instruments and Methods in Physics Research B, 141(1-4), p.148 - 153, 1998/00

 Times Cited Count:27 Percentile:10.85

no abstracts in English

Journal Articles

Quadrupole deformation of barium isotopes

; *; Furuno, Kohei*

Physics Letters B, 440(3-4), p.239 - 245, 1998/00

 Times Cited Count:4 Percentile:69.21

no abstracts in English

Journal Articles

High spin states of $$^{132}$$Cs

Hayakawa, Takehito*; J.Lu*; Furuno, Kohei*; *; *; *; Komatsubara, Tetsuro*; Oshima, Masumi; ; *; et al.

Z. Phys., A, 357(4), p.349 - 350, 1997/00

no abstracts in English

Journal Articles

High spin states of $$^{62,64}$$Zn

*; Hayakawa, Takehito*; *; ; *; Oshima, Masumi; *; Komatsubara, Tetsuro*; ; Furuno, Kohei*; et al.

Z. Phys., A, 358, p.279 - 280, 1997/00

no abstracts in English

Journal Articles

High-spin states $$^{61}$$Cu

; Hayakawa, Takehito*; *; *; *; Ishii, Tetsuro; Oshima, Masumi; *; Kusakari, Hideshige*; Sugawara, Masahiko*; et al.

Z. Phys., A, 359, p.3 - 4, 1997/00

no abstracts in English

Journal Articles

High-spin states in nuclei at A=60 region

Oshima, Masumi; Furuno, Kohei*; Komatsubara, Tetsuro*; Hayakawa, Takehito*; *; *; *; *; ; Ishii, Tetsuro

Chujukaku No Kozo (Riken Shimpojiumu), 0, p.72 - 77, 1996/00

no abstracts in English

Journal Articles

In situ EELS and TEM observation of silicon carbide irradiated with helium ions at low temperature and successively annealed

Hojo, Kiichi; Furuno, Shigemi; Kushita, Kohei; *; *; *

Nuclear Instruments and Methods in Physics Research B, 116, p.382 - 388, 1996/00

 Times Cited Count:28 Percentile:9.51

no abstracts in English

Journal Articles

In situ EELS and TEM observation of boron carbide(B$$_{4}$$C) during hydrogen- and hilium-ion bombardments

Kushita, Kohei; Hojo, Kiichi; Furuno, Shigemi

Microsc. Microanal. Microstruct., 6, p.149 - 157, 1995/02

 Times Cited Count:11 Percentile:37.93(Microscopy)

no abstracts in English

Journal Articles

In-situ EELS and TEM observation of Al implanted with nitrogen ions

Hojo, Kiichi; Furuno, Shigemi; *; Kushita, Kohei; ; *

Microsc. Microanal. Microstruct., 6, p.141 - 147, 1995/02

 Times Cited Count:2 Percentile:76.13(Microscopy)

no abstracts in English

Journal Articles

Electron energy-loss spectroscopy study of amorphization process of graphite bombarded with hydrogen ions and energetic electrons at low temperatures

Kushita, Kohei; Hojo, Kiichi; Furuno, Shigemi

Journal of Electron Microscopy, 44, p.456 - 461, 1995/00

no abstracts in English

Journal Articles

In-situ observation of the damage evolution in $$beta$$-SiC crystals during helium and hydrogen dual-ion irradiations

Hojo, Kiichi; Furuno, Shigemi; Kushita, Kohei; ; *

Nuclear Instruments and Methods in Physics Research B, 91, p.534 - 539, 1994/00

 Times Cited Count:5 Percentile:45.34

no abstracts in English

Journal Articles

Radiation damage of graphite due to hydrogen-ion bombardment at very low temperature

Kushita, Kohei; Hojo, Kiichi; Furuno, Shigemi

Journal of Nuclear Materials, 191-194, p.351 - 355, 1992/00

no abstracts in English

Journal Articles

In-situ observation of damage evolution in SiC crystals during He$$^{+}$$ and H$$_{2+}$$ dual-ion beam irradiation

Hojo, Kiichi; Furuno, Shigemi; Kushita, Kohei; ; *

Journal of Nuclear Materials, 191-194, p.583 - 587, 1992/00

 Times Cited Count:22 Percentile:12.42

no abstracts in English

Journal Articles

In Situ EELS observation of diamond during hydrogen-ion bombardment

Kushita, Kohei; Hojo, Kiichi; Furuno, Shigemi;

Journal of Nuclear Materials, 191-194, p.346 - 350, 1992/00

no abstracts in English

21 (Records 1-20 displayed on this page)