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NSR database version of April 24, 2024.

Search: Author = H.Akai

Found 12 matches.

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2010MI19      Nucl.Phys. A834, 777c (2010)

M.Mihara, K.Matsuta, D.Nishimura, H.Hirano, J.Komurasaki, S.Takahashi, T.Nagatomo, R.Matsumiya, M.Ogura, H.Akai, S.Momota, T.Ohtsubo, T.Izumikawa, D.Zhou, Y.Zheng, D.Yuan, P.Fan, Y.Zuo, S.Zhu, A.Kitagawa, M.Kanazawa, M.Torikoshi, S.Sato, M.Fukuda, D.Ishikawa, T.Minamisono, R.Watanabe, T.Kubo, Y.Nojiri, T.Sumikama, J.R.Alonso, G.F.Crebs, T.J.M.Symons

Nuclear spin-lattice relaxation of light impurities in platinum studied by using polarized unstable nuclear beams

NUCLEAR REACTIONS Pt(25Al, 25Al'), (28P, 28P'), E not given; measured particle polarization from thick target, time- and temperature-dependence; deduced Knight shifts. Polarized beams. Comparison with calculations.

doi: 10.1016/j.nuclphysa.2010.01.144
Citations: PlumX Metrics


2007MI49      Hyperfine Interactions 178, 73 (2007)

M.Mihara, K.Matsuta, S.Kumashiro, M.Fukuda, S.Kosakai, Y.Umemoto, M.Yoshikawa, R.Matsumiya, D.Nishimura, J.Komurasaki, D.Ishikawa, M.Ogura, H.Akai, T.Minamisono

Temperature dependence of Knight shifts for 12B in Pt

NUCLEAR MOMENTS 12B(β-); measured β-assymetry for spin polarized nuclei implanted in Pt foil using the β-NMR method.

doi: 10.1007/s10751-008-9660-6
Citations: PlumX Metrics


2007MI50      Hyperfine Interactions 178, 83 (2007)

M.Mihara, K.Matsuta, D.Nishimura, T.Nagatomo, R.Matsumiya, S.Momota, T.Ohtsubo, T.Izumikawa, D.M.Zhou, Y.N.Zheng, M.Ogura, H.Akai, J.Komurasaki, M.Fukuda, D.Ishikawa, Y.Nojiri, H.Hirano, S.Takahashi, R.Watanabe, T.Kubo, S.Y.Zhu, A.Kitagawa, M.Kanazawa, S.Sato, M.Torikoshi, T.Sumikama, T.Minamisono, J.R.Alonso, G.F.Krebs, T.J.M.Symons

Spin-lattice relaxation of 25Al and 28P in Pt

NUCLEAR MOMENTS 25Al, 28P(β+); measured spin lattice relaxation times for spin polarized nuclei implanted in a Pt foil using the β-NMR method.

doi: 10.1007/s10751-008-9662-4
Citations: PlumX Metrics


2002OG08      Z.Naturforsch. 57a, 599 (2002)

M.Ogura, K.Minamisono, T.Sumikama, T.Nagatomo, T.Iwakoshi, T.Miyake, S.Kudo, K.Akutsu, K.Sato, M.Mihara, M.Fukuda, K.Matsuta, H.Akai, T.Minamisono

Development of a Nuclear Spin Dewar: Hyperfine Interactions of the Short-Lived β Emitter 12B in TiO2

NUCLEAR MOMENTS 12B(β-); measured β-NMR spectra, asymmetry vs temperature for source implanted in TiO2; deduced polarization.


2001OG12      Hyperfine Interactions 136/137, 195 (2001)

M.Ogura, K.Minamisono, T.Sumikama, T.Nagatomo, T.Iwakoshi, T.Miyake, K.Hashimoto, S.Kudo, K.Arimura, M.Ota, K.Akutsu, K.Sato, M.Mihara, M.Fukuda, K.Matsuta, H.Akai, T.Minamisono

A Possible Nuclear Spin Dewar. Hyperfine Interactions of Short-Lived β Emitter 8Li and 12B in TiO2

RADIOACTIVITY 8Li, 12B(β-) [from 7Li, 11B(dp)]; measured β-NMR spectra from oriented sources.

doi: 10.1023/A:1020528231425
Citations: PlumX Metrics


2001ZH43      Hyperfine Interactions 136/137, 149 (2001)

S.-Y.Zhu, J.Zhu, T.Minamisono, K.Matsuta, Y.Xu, M.Fukuda, M.Mihara, Z.Wang, K.Sato, H.Akai, C.Rong, C.Chu, J.Chen, H.Luo

On-line Time Differential Perturbed Angular Correlation with Light Probe Nucleus 19F

RADIOACTIVITY 19O(β-); measured Eγ, Iγ(θ, H, t). 19F deduced quadrupole moment. On-line time differential perturbed angular correlation.

doi: 10.1023/A:1020532332334
Citations: PlumX Metrics


1999MB13      Hyperfine Interactions 120/121, 673 (1999)

K.Matsuta, T.Onishi, M.Fukuda, T.Minamisono, H.Akai, M.Sasaki, T.Yamaguchi, T.Miyake, K.Sato, K.Minamisono, F.Ohsumi, Y.Muramoto, S.Oui, C.Ha, K.Tanaka, K.Kidera, A.Morishita, A.Kitagawa, M.Torikoshi, M.Kanazawa, T.Nishio, S.Koda, T.Ohtsubo, S.Fukuda, Y.Nojiri, S.Momota, A.Ozawa, K.Yoshida, T.Suzuki, T.Kobayashi, I.Tanihata, S.S.Hanna, J.R.Alonso, G.F.Krebs, T.J.M.Symons

Electromagnetic moments of short lived β emitters 21F, 23Mg, 27Si and 39Ca

NUCLEAR MOMENTS 21F, 23Mg, 27Si, 39Ca; measured asymmetry change as a function of the frequency; deduced magnetic moments, electrical quadrupole coupling constants. Comparison with OXBASH shell model calculations.

doi: 10.1023/A:1017036009679
Citations: PlumX Metrics


1998MI20      Z.Naturforsch. 53a, 293 (1998)

T.Minamisono, K.Sato, H.Akai, S.Takeda, Y.Maruyama, K.Matsuta, M.Fukuda, T.Miyake, A.Morishita, T.Izumikawa, Y.Nojiri

Electric Quadrupole Interactions of the Short-Lived β-Emitter 12N in Insulator Crystals (12N Implanted in Single Crystal TiO2)

RADIOACTIVITY 12N(β+) [from 10B(3He, n)]; measured β-NMR. 12N deduced quadrupole moment, electric field gradiants in TiO2.


1996MA37      Hyperfine Interactions 97/98, 501 (1996)

K.Matsuta, M.Fukuda, M.Tanigaki, T.Minamisono, Y.Nojiri, H.Akai, T.Izumikawa, M.Nakazato, M.Mihara, T.Yamaguchi, A.Harada, M.Sasaki, T.Miyake, T.Onishi, K.Minamisono, T.Fukao, K.Sato, Y.Matsumoto, T.Ohtsubo, S.Fukuda, K.Yoshida, A.Ozawa, S.Momota, T.Kobayashi, I.Tanihata, J.R.Alonso, G.F.Krebs, T.J.M.Symons

Hyperfine Interactions of 13O and 23Mg Implanted in Pt

RADIOACTIVITY 13O(β+) [from 9Be(16O, X), E=135 MeV/nucleon]; 23Mg(β+) [from 197Au(24Mg, X), E=100 MeV/nucleon]; measured β time spectra, NMR techniques, implantation in Pt; deduced hyperfine interaction, spin relaxation time, Knight shift.

doi: 10.1007/BF02150192
Citations: PlumX Metrics


1993GR21      Hyperfine Interactions 80, 1011 (1993)

P.Graf, H.Ebert, H.Akai, J.Voitlander

Experimental and Theoretical Investigations of the Knight Shift of Pd and Ag in the Alloy System Ag(x)Pd(1-x)

NUCLEAR MOMENTS 105Pd; measured NMR; deduced Pd Knight shift in Ag(x)Pd(1-x).

doi: 10.1007/BF00567456
Citations: PlumX Metrics


1993OH11      Hyperfine Interactions 80, 1051 (1993)

T.Ohtsubo, Y.Nakayama, I.Minami, M.Tanigaki, S.Fukuda, A.Kitagawa, M.Fukuda, K.Matsuta, Y.Nojiri, H.Akai, T.Minamisono

Electric Field Gradient in Mg and Zn Detected by β-Emitters, 8Li and 12B

RADIOACTIVITY 8Li(β-); 12B(β-); measured NQR; deduced quadrupole coupling constants in hcp Mg, Zn.

doi: 10.1007/BF00567464
Citations: PlumX Metrics


1986AK02      Phys.Rev.Lett. 56, 2407 (1986)

H.Akai, S.Blugel, R.Zeller, P.H.Dederichs

Isomer Shifts and Their Relation to Charge Transfer in Dilute Fe Alloys

ATOMIC PHYSICS Fe; calculated isomer shift vs impurity Z; deduced s-electron number dependence.

doi: 10.1103/PhysRevLett.56.2407
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