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NSR database version of May 24, 2024.

Search: Author = Y.Kojima

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2021KO03      Nucl.Instrum.Methods Phys.Res. A990, 164984 (2021)

Y.Kojima, K.Imai, S.Ohno, R.Chaya, K.Yamamoto, M.Shibata

Optimum detector arrangement of a Compton polarimeter using a clover detector for β-delayed γ rays

RADIOACTIVITY 152Eu(EC), (β-), 134Cs, 60Co(β-); measured decay products, Eγ, Iγ; deduced linear polarization of β-delayed γ-rays. Clover Ge detector.

doi: 10.1016/j.nima.2020.164984
Citations: PlumX Metrics


2015KO23      J.Phys.Soc.Jpn. 84, 054201 (2015)

Y.Kojima, K.Kosuga, Y.Shima, A.Taniguchi, H.Hayashi, M.Shibata

β- Decay of 150Ce to Odd-Odd 150Pr

RADIOACTIVITY 150Ce(β-) [from 235U(n, F), E thermal]; measured decay products, X-rays, Eγ, Iγ, γ-γ-coin.; deduced level energies and intensities, T1/2, log ft, J, π. Comparison with available data.

doi: 10.7566/JPSJ.84.054201
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Data from this article have been entered in the XUNDL database. For more information, click here.


2014KO27      Nucl.Data Sheets 120, 52 (2014)

Y.Kojima, Y.Shima, H.Hayashi, A.Taniguchi, M.Shibata

Half-life Measurements of Excited Levels in Fission Products around Mass Number 150

RADIOACTIVITY 149Pr, 149Ce(β-) [from 235U(n, F), E thermal]; measured decay products, Eγ, Iγ.; deduced level energies, T1/2. Comparison with available data.

doi: 10.1016/j.nds.2014.07.004
Citations: PlumX Metrics


2014SH19      Nucl.Data Sheets 120, 30 (2014)

Y.Shima, Y.Kojima, H.Hayashi, A.Taniguchi, M.Shibata

Measurements of High-energy Excited States and γ-rays of Fission Products with a 4π Clover Detector

RADIOACTIVITY 147La, 145Ba(β-) [from 235U(n, F), E thermal]; measured decay products, Eγ, Iγ; deduced level structure, γ-ray intensities.

doi: 10.1016/j.nds.2014.06.133
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2013AS02      Phys.Rev. C 87, 014332 (2013)

M.Asai, K.Tsukada, M.Sakama, H.Haba, T.Ichikawa, Y.Ishii, A.Toyoshima, T.Ishii, I.Nishinaka, Y.Nagame, Y.Kasamatsu, M.Shibata, Y.Kojima, H.Hayashi

Ground-state configuration of the N=157 nucleus 259No

RADIOACTIVITY 259No(α)[from 248Cm(18O, 3nα), E=94 MeV]; measured Eα, Iα, Eγ, I(K-x rays), αγ-coin, T1/2 at JAEA facility. 255Fm; deduced levels, J, π, multipolarity, configuration. 259No; deduced ground-state configuration. 255,257,259,261,263,265No; calculated energies of neutron single-particle orbitals, and β2, β4, β6 deformation parameters using macroscopic-microscopic model based on FRLDM and Strutinsky shell correction method. Observed α lines from decays of 211,213,214Po, 211At, 250,254,255,256Fm, 253Es, 257No, 261Rf formed in competing reaction channels.

doi: 10.1103/PhysRevC.87.014332
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Data from this article have been entered in the XUNDL database. For more information, click here.


2013SH04      Appl.Radiat.Isot. 73, 60 (2013)

M.Shibata, A.Tojo, I.Miyazaki, M.Furuta, H.Hayashi, Y.Kojima, Y.Shima, A.Taniguchi

Relative intensities of prompt γ-rays from the 35Cl(n, γ)36Cl reaction with thermal neutrons as secondary γ-ray intensity standards

NUCLEAR REACTIONS 14N, 35Cl(n, γ), E thermal; measured reaction products, Eγ, Iγ; deduced prompt gamma ray intensities, relative intensities. Comparison with available data.

doi: 10.1016/j.apradiso.2012.11.008
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23207.


2012SH06      Ann.Nucl.Energy 43, 106 (2012)

M.Shibata, I.Miyazaki, H.Hayashi, A.Tojo, M.Furuta, Y.Kojima, A.Taniguchi, K.Kawade

Emission probabilities of some intense prompt γ rays of 24Na, 28Al, 52V, 56Mn, 60Co, 142Pr, 187W and 198Au with thermal neutron capture determined using γ rays following β decay

NUCLEAR REACTIONS 23Na, 27Al, 51V, 55Mn, 59Co, 141Pr, 186W, 197Au(n, γ), E thermal; measured reaction products, Eγ, Iγ; deduced σ, emission probabilities for prompt γ-rays. Comparison with previous data.

doi: 10.1016/j.anucene.2012.01.005
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22744.


2011AS03      Phys.Rev. C 83, 014315 (2011)

M.Asai, K.Tsukada, H.Haba, Y.Ishii, T.Ichikawa, A.Toyoshima, T.Ishii, Y.Nagame, I.Nishinaka, Y.Kojima, K.Sueki

Neutron one-quasiparticle states in 251Fm151 populated via the α decay of 255No

RADIOACTIVITY 255No(α)[from 248Cm(12C, 5n), E=77 MeV; measured Eα, Iα, Eγ, Iγ, αγ-coin, T1/2, level half-lives from delayed spectra. 251Fm; deduced levels, J, π, α hindrance factors, conversion coefficients, multipolarities, B(E2), configurations. Comparison of α hindrance factors with those from α decay of 251Cf and 253Fm.

NUCLEAR STRUCTURE 245Pu, 247Cm, 249Cf, 251Fm, 253No, 255Rf; calculated one quasiparticle neutron states in N=151 nuclei using macroscopic-microscopic approach with finite-range liquid drop model involving β2, β4, β6 and β8 deformation parameters.

doi: 10.1103/PhysRevC.83.014315
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Data from this article have been entered in the XUNDL database. For more information, click here.


2010HA38      Nucl.Instrum.Methods Phys.Res. A613, 79 (2010)

H.Hayashi, Y.Kojima, M.Shibata, K.Kawade

Practical Qβ analysis method based on the Fermi-Kurie plot for spectra measured with total absorption BGO detector

RADIOACTIVITY 91,92,93,94Rb, 139,140,141,142,143Cs, 142Ba, 142,144La, 158,159Pm, 159,161Sm, 160,161,162,163,164,165Eu, 163Gd, 166Tb(β-); measured decay products, Eγ, Iγ, Eβ, Iβ; deduced β-decay spectra, Q-values. Total absorption detector, BGO scintillator.

doi: 10.1016/j.nima.2009.10.155
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2009MU15      Nucl.Instrum.Methods Phys.Res. A610, 654 (2009)

A.Murataka, Y.Kojima, S.Endo, K.Shizuma

String-guided fast transport system and photoactivation of short-lived isomers 79mBr and 77mSe by 60Co γ-ray irradiation

RADIOACTIVITY 79Br, 77Se(IT); measured Eγ, Iγ; deduced T1/2.

doi: 10.1016/j.nima.2009.09.019
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Data from this article have been entered in the XUNDL database. For more information, click here.


2007HA57      Eur.Phys.J. A 34, 363 (2007)

H.Hayashi, Y.Akita, O.Suematsu, M.Shibata, M.Asai, T.K.Sato, S.Ichikawa, I.Nishinaka, Y.Nagame, A.Osa, K.Tsukada, T.Ishii, Y.Kojima, A.Taniguchi

Qβ measurements of 158, 159Pm, 159, 161Sm, 160-165Eu, 163Gd and 166Tb using a total absorption BGO detector

RADIOACTIVITY 158,159Pm, 159,161Sm, 160,161,162,163,164,165Eu, 163Gd, 166Tb(β-) [from 238U(p, F), E=24 MeV and subsequent decay]; measured Eγ, Iγ, Eβ, Iβ; deduced Qβ, mass excess and two-neutron separation energies. Mass separator.

doi: 10.1140/epja/i2006-10522-9
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Data from this article have been entered in the XUNDL database. For more information, click here.


2007SH05      Eur.Phys.J. A 31, 171 (2007)

M.Shibata, O.Suematsu, Y.Kojima, K.Kawade, A.Taniguchi, Y.Kawase

Observation of M3 isomeric transition from 156mPm through the β--decay of 156Nd

RADIOACTIVITY 156Nd, 156Pm(β-) [from 235U(n, F) and subsequent decay]; 156mPm(β-), (IT) [from 156Nd decay]; measured Eγ, Iγ, E(ce), I(ce), T1/2. 156Pm, 156Sm deduced levels, J, π, ICC, configurations. Mass separator.

doi: 10.1140/epja/i2006-10213-7
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Data from this article have been entered in the XUNDL database. For more information, click here.


2006AS03      Phys.Rev. C 73, 067301 (2006)

M.Asai, K.Tsukada, S.Ichikawa, M.Sakama, H.Haba, I.Nishinaka, Y.Nagame, S.Goto, Y.Kojima, Y.Oura, M.Shibata

α decay of 238Cm and the new isotope 237Cm

NUCLEAR REACTIONS 237Np(6Li, X), E=52-59 MeV; measured delayed Eα, Iα; deduced evidence for 236,238Pu, 237Am, 237,238Cm. Mass separator.

RADIOACTIVITY 238Cm(α) [from 237Np(6Li, 5n)]; measured Eα, T1/2. 234Pu deduced 2+ excited state energy. Systematics of 2+ levels discussed.

doi: 10.1103/PhysRevC.73.067301
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Data from this article have been entered in the XUNDL database. For more information, click here.


2006KO25      Nucl.Instrum.Methods Phys.Res. A564, 275 (2006)

Y.Kojima, M.Shibata, A.Taniguchi, Y.Kawase, R.Doi, A.Nagao, K.Shizuma

Experimental apparatus at KUR-ISOL to identify isomeric transitions from fission products, and decay spectroscopy of 151Ce

RADIOACTIVITY 151Ce(β-) [from 235U(n, F)]; measured Eγ, Iγ, Eβγ-coin. 151Pr deduced levels, J, π, isomeric state T1/2. Mass separator.

doi: 10.1016/j.nima.2006.05.014
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Data from this article have been entered in the XUNDL database. For more information, click here.


2005AS01      Eur.Phys.J. A 23, 395 (2005)

M.Asai, M.Sakama, K.Tsukada, S.Ichikawa, H.Haba, I.Nishinaka, Y.Nagame, S.Goto, Y.Kojima, Y.Oura, H.Nakahara, M.Shibata, K.Kawade

Proton-neutron configurations in 236g, mAm and its EC-decay daughter 236Pu

RADIOACTIVITY 236,236mAm(EC) [from 235U(6Li, 5n)]; measured Eγ, Iγ, γγ-, (X-ray)γ-coin, T1/2; deduced log ft. 236Pu deduced levels, J, π, configurations, β-feeding intensities, B(E1), B(M1). 236Am deduced isomeric state J, π, configuration.

doi: 10.1140/epja/i2004-10096-6
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Data from this article have been entered in the XUNDL database. For more information, click here.


2005IC02      Phys.Rev. C 71, 067302 (2005)

S.Ichikawa, M.Asai, K.Tsukada, H.Haba, Y.Nagame, M.Shibata, M.Sakama, Y.Kojima

β-decay half-lives of new neutron-rich rare-earth isotopes 159Pm, 162Sm, and 166Gd

RADIOACTIVITY 159Pm, 162Sm, 166Gd, 166Tb(β-) [from 238U(p, F)]; measured Eγ, Iγ, βγ-, γγ-coin, T1/2. 166Tb deduced levels, β-feeding intensities.

doi: 10.1103/PhysRevC.71.067302
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Data from this article have been entered in the XUNDL database. For more information, click here.


2004AS12      Eur.Phys.J. A 22, 411 (2004)

M.Asai, M.Sakama, K.Tsukada, S.Ichikawa, H.Haba, I.Nishinaka, Y.Nagame, S.Goto, Y.Kojima, Y.Oura, H.Nakahara, M.Shibata, K.Kawade

EC and α decays of 235Am

RADIOACTIVITY 235Am(EC), (α) [from 233U(6Li, 4n)]; measured Eγ, Iγ, Eα, X-ray spectra, γγ-, αγ-coin; deduced log ft, Qα. 235Am deduced ground-state J, π. 235Pu deduced levels, J, π, ICC, β-feeding intensities. 231Np deduced level energy. Level systematics in neighboring nuclides discussed.

doi: 10.1140/epja/i2004-10044-6
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Data from this article have been entered in the XUNDL database. For more information, click here.


2004KO05      Eur.Phys.J. A 19, 77 (2004)

Y.Kojima, A.Taniguchi, M.Shibata, E.Oyama, T.Nishimura, K.Shizuma, Y.Kawase

First observation of isomeric transition from 148mPr and parity assignment for excited levels in 148Pr

RADIOACTIVITY 148Ce(β-); 148mPr(IT), (β-) [from 235U(n, F) and subsequent decay]; measured Eγ, Iγ, E(ce), I(ce), (ce)γ-coin. 148Pr deduced levels, J, π, ICC, configurations.

doi: 10.1140/epja/i2003-10114-3
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2004SA05      Phys.Rev. C 69, 014308 (2004)

M.Sakama, M.Asai, K.Tsukada, S.Ichikawa, I.Nishinaka, Y.Nagame, H.Haba, S.Goto, M.Shibata, K.Kawade, Y.Kojima, Y.Oura, M.Ebihara, H.Nakahara

α-decays of neutron-deficient americium isotopes

RADIOACTIVITY 233,234,235,236Am, 229Np(α) [from 233,235U(6Li, xn) and subsequent decay]; measured Eα, Iα, T1/2, Eγ, X-ray spectra, αγ-coin; deduced hindrance factors. 233,235,236Am deduced Qα. Mass separator.

NUCLEAR REACTIONS 235U(6Li, 5n), 233U(6Li, 4n), (6Li, 5n), (6Li, 6n), E ≈ 34-60 MeV; measured production σ.

doi: 10.1103/PhysRevC.69.014308
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1888. Data from this article have been entered in the XUNDL database. For more information, click here.


2003AS01      Eur.Phys.J. A 16, 17 (2003)

M.Asai, K.Tsukada, S.Ichikawa, M.Sakama, H.Haba, Y.Nagame, I.Nishinaka, K.Akiyama, A.Toyoshima, T.Kaneko, Y.Oura, Y.Kojima, M.Shibata

Identification of the new isotope 241Bk

NUCLEAR REACTIONS 239Pu(6Li, 4n), E=34-42 MeV; measured prompt and delayed Eγ, Iγ, (X-ray)γ-, (recoil)γ-coin; deduced evidence for 241Bk. Isotope separator.

RADIOACTIVITY 241Bk(EC) [from 239Pu(6Li, 4n)]; measured Eγ, Iγ, (X-ray)γ-coin, T1/2; deduced ground-state configuration.

doi: 10.1140/epja/i2002-10112-y
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2003KO13      Eur.Phys.J. A 16, 331 (2003)

Y.Kojima, M.Shibata, A.Taniguchi, T.Hanafusa, E.Yoshida, K.Shizuma, Y.Kawase, S.Yamada

Conversion electron measurement in the β--decay of 151Pr

RADIOACTIVITY 151Pr(β-) [from 235U(n, F)]; measured E(ce), I(ce). 151Nd deduced levels, J, π, ICC. Comparison with model predictions.

doi: 10.1140/epja/i2002-10107-8
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2002AS08      J.Nucl.Radiochem.Sci. 3, No 1, 187 (2002)

M.Asai, M.Sakama, K.Tsukada, S.Ichikawa, H.Haba, I.Nishinaka, Y.Nagame, S.Goto, K.Akiyama, A.Toyoshima, Y.Kojima, Y.Oura, H.Nakahara, M.Shibata, K.Kawade

Decay Studies of Neutron-deficient Am, Cm, and Bk Nuclei Using an On-line Isotope Separator

RADIOACTIVITY 235,236Am(EC) [from 233,235U(6Li, xn)]; measured prompt and delayed Eγ, Iγ, γγ-coin; deduced log ft. 235,236Pu deduced levels, J, π, configurations. 233,234,235,236Am, 237,238Cm(α) [from 233,235U, 237Np(6Li, xn)]; measured Eα, T1/2. Isotope separator.

Data from this article have been entered in the XUNDL database. For more information, click here.


2002IC04      Nucl.Instrum.Methods Phys.Res. B187, 548 (2002)

S.Ichikawa, K.Tsukada, M.Asai, H.Haba, M.Sakama, Y.Kojima, M.Shibata, Y.Nagame, Y.Oura, K.Kawade

Performance of the multiple target He/PbI2 aerosol jet system for mass separation of neutron-deficient actinide isotopes

NUCLEAR REACTIONS 233U(6Li, 4n)235Am, E=52 MeV; 141Pr(6Li, 4n)143Sm, E=37.2 MeV; 237Np(6Li, 6n)237Cm, E=62 MeV; measured reaction products, Eα, Iα. 233,234,235,236Am; decay products energies and T1/2. The isotope separator on line (JAERI-ISOL) at the JAERI tandem accelerator facility.

doi: 10.1016/s0168-583x(01)01145-4
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2002KO02      Appl.Radiat.Isot. 56, 543 (2002)

Y.Kojima, M.Asai, M.Shibata, K.Kawade, A.Taniguchi, A.Osa, M.Koizumi, T.Sekine

Decay Scheme of 126La Isomers

RADIOACTIVITY 126La(EC), (β+) [from 94Mo(36Ar, 3pn)]; measured Eγ, Iγ, γγ-coin, E(ce), I(ce), T1/2; deduced log ft. 126La deduced isomers J, π. 126Ba deduced levels, J, π, ICC, δ. Mass separator.

doi: 10.1016/S0969-8043(01)00248-2
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2002SH16      J.Phys.Soc.Jpn. 71, 1401 (2002)

M.Shibata, T.Shindou, A.Taniguchi, Y.Kojima, K.Kawade, S.-I.Ichikawa, Y.Kawase

Qβ Determination of Neutron-Rich Isotope 144La with a Total Absorption Detector

RADIOACTIVITY 144La(β-) [from 235U(n, F)]; measured Qβ. Total absorption spectrometer, mass separation. Comparison with previous results.

doi: 10.1143/JPSJ.71.1401
Citations: PlumX Metrics


2001AS02      Nucl.Instrum.Methods Phys.Res. A463, 205 (2001)

M.Asai, K.Kawade, M.Shibata, Y.Kojima, A.Osa, M.Koizumi, T.Sekine

Normalization of γ-γ Angular Correlation Coincidence Counts using Characteristic X-Rays

RADIOACTIVITY 126,128La(EC) [from Mo(36Ar, xnyp)]; measured Eγ, Iγ, γγ-, (X-ray)γ-coin. 126,128Ba transitions deduced angular correlation parameters. Mass-separated sources.

doi: 10.1016/S0168-9002(01)00301-1
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Data from this article have been entered in the XUNDL database. For more information, click here.


2001KO07      Nucl.Instrum.Methods Phys.Res. A458, 656 (2001)

Y.Kojima, M.Shibata, H.Uno, K.Kawade, A.Taniguchi, Y.Kawase, K.Shizuma

A Precise Method of Qβ Determination with Small HPGe Detector in an Energy Range of 1-9 MeV

RADIOACTIVITY 32P, 38Cl, 42K, 56Mn, 91,92,93Rb, 95Sr, 90,94Y, 139,140,141Cs, 142La, 142Pr(β-); 62Cu, 68Ga, 91Mo, 124Cs(β+); measured β-spectra, Qβ. HPGe detector, comparison with previous results.

doi: 10.1016/S0168-9002(00)00899-8
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2000SA52      Eur.Phys.J. A 9, 303 (2000)

M.Sakama, K.Tsukada, M.Asai, S.Ichikawa, H.Haba, S.Goto, Y.Oura, I.Nishinaka, Y.Nagame, M.Shibata, Y.Kojima, K.Kawade, M.Ebihara, H.Nakahara

New Isotope 233Am

RADIOACTIVITY 233Am, 229Np(α), (EC) [from 233U(6Li, X), E=63 MeV]; measured Eα, T1/2, α-branching ratio, αα(t), (x-ray)α-coin following mass separation. Comparison with results of nearby isotopes, ISOL technique.

NUCLEAR REACTIONS 233U(6Li, X), E=63 MeV; measured α spectra, αα-coin following compound nucleus decay; deduced evidence for 233Am.

doi: 10.1007/s100500070013
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2000YO07      Nucl.Instrum.Methods Phys.Res. A449, 217 (2000)

E.Yoshida, T.Kobayashi, Y.Kojima, K.Shizuma

Half-Lives of Isomeric Levels of 107mAg, 109mAg and 103mRh Photoactivated by 60Co γ-Ray Irradiation

RADIOACTIVITY 107m,109mAg, 103mRh(IT) [from Ag, Rh(γ, γ')]; measured T1/2. Activation by 60Co decay γ rays. Comparisons with previous results.

doi: 10.1016/S0168-9002(99)01436-9
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1999AS03      Phys.Rev. C59, 3060 (1999)

M.Asai, S.Ichikawa, K.Tsukada, M.Sakama, M.Shibata, Y.Kojima, A.Osa, I.Nishinaka, Y.Nagame, K.Kawade, T.Tachibana

β-Decay Half-Lives of New Neutron-Rich Isotopes 167, 168Tb and Levels in 167, 168Dy

RADIOACTIVITY 167,168Tb(β-) [from 238U(p, F)]; measured Eγ, Iγ, βγ-coin, T1/2. 167,168Dy deduced levels, J, π, configurations, rotational band features. Comparisons with neighboring nuclides.

doi: 10.1103/PhysRevC.59.3060
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Data from this article have been entered in the XUNDL database. For more information, click here.


1999SE04      J.Radioanal.Nucl.Chem. 239, 127 (1999)

T.Sekine, S.Ichikawa, A.Osa, M.Koizumi, H.Iimura, K.Tsukada, I.Nishinaka, Y.Hatsukawa, Y.Nagame, M.Asai, Y.Kojima, T.Hirose, M.Shibata, H.Yamamoto, K.Kawade

Recent Studies of Unstable Nuclei Far from Stability with the On-Line Isotope Separators of JAERI

doi: 10.1007/BF02349543
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1998IC02      Phys.Rev. C58, 1329 (1998)

S.Ichikawa, K.Tsukada, I.Nishinaka, Y.Hatsukawa, H.Iimura, K.Hata, Y.Nagame, M.Asai, Y.Kojima, T.Hirose, M.Shibata, K.Kawade, Y.Oura

Identification of 161Sm and 165Gd

NUCLEAR REACTIONS 238U(p, F), E=20 MeV; measured βγ-, γγ-coin following fission fragment decay; deduced evidence for 161Sm, 165Gd. Online isotope separator.

RADIOACTIVITY 161Sm, 165Gd(β-); measured T1/2.

doi: 10.1103/PhysRevC.58.1329
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1998KO06      Appl.Radiat.Isot. 49, 829 (1998)

Y.Kojima, M.Asai, A.Osa, M.Koizumi, T.Sekine, M.Shibata, H.Yamamoto, K.Kawade

Measurement of Q(EC) Values of 126La Isomers

RADIOACTIVITY 126mLa(β+) [from 94Mo(36Ar, n3p)]; measured β-spectra, βγ-coin; deduced Q(EC) values. On-line mass separator.

doi: 10.1016/S0969-8043(97)00303-5
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1998KO66      J.Phys.Soc.Jpn. 67, 3405 (1998)

Y.Kojima, M.Asai, A.Osa, M.Koizumi, T.Sekine, M.Shibata, H.Yamamoto, K.Kawade, T.Tachibana

QEC Measurement of 124, 125, 127-130La

RADIOACTIVITY 124,125,127,128,129,130La(β+), (EC) [from Mo, 29Mo(36Ar, 3pxn), E=5.4 MeV/nucleon]; measured Eγ, Iγ, β-spectra, βγ-coin, T1/2; deduced Q(EC), masses. HPGe, on-line mass separation.

ATOMIC MASSES 124,125,127,128,129,130La(β+), (EC) [from Mo, 29Mo(36Ar, 3pxn), E=5.4 MeV/nucleon]; measured Eγ, Iγ, β-spectra, βγ-coin, T1/2; deduced Q(EC), masses. HPGe, on-line mass separation.

doi: 10.1143/JPSJ.67.3405
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1998TS02      Phys.Rev. C57, 2057 (1998)

K.Tsukada, S.Ichikawa, Y.Hatsukawa, I.Nishinaka, K.Hata, Y.Nagame, Y.Oura, T.Ohyama, K.Sueki, H.Nakahara, M.Asai, Y.Kojima, T.Hirose, H.Yamamoto, K.Kawade

Half-Life of the Electron Capture Decaying Isotope 236Am

RADIOACTIVITY 236Am(EC) [from 235U(6Li, 5n)]; measured X-ray spectra, T1/2; deduced log ft. 236Am deduced ground-state J, π.

NUCLEAR REACTIONS 235U(6Li, 5n), E=46-50 MeV; measured production σ. On-line isotope separator.

doi: 10.1103/PhysRevC.57.2057
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1887.


1997AS05      Phys.Rev. C56, 3045 (1997)

M.Asai, T.Sekine, A.Osa, M.Koizumi, Y.Kojima, M.Shibata, H.Yamamoto, K.Kawade

Energy Systematics of Low-Lying 0+ States in Neutron-Deficient Ba Nuclei

RADIOACTIVITY 128,130La, 130Pr(β+)(EC) [from Mo(36Ar, X), E=195 MeV]; 124,126La(β+)(EC) [from 92,94Mo(36Ar, X), E=195 MeV]; measured Eγ, Iγ, γγ(θ), γ(t); deduced low-spin isomers, β-decay branching ratios. 124,126,128,130Ba, 130Ce deduced levels, J, π. Model calculations, other nuclei compared. ISOL.

doi: 10.1103/PhysRevC.56.3045
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1996AS05      J.Phys.Soc.Jpn. 65, 1135 (1996)

M.Asai, K.Tsukada, S.Ichikawa, A.Osa, Y.Kojima, M.Shibata, H.Yamamoto, K.Kawade, N.Shinohara, Y.Nagame, H.Iimura, Y.Hatsukawa, I.Nishinaka

Identification of a New Isotope 166Tb

RADIOACTIVITY 166Tb(β-) [from 238U(p, F)]; measured Eγ, Iγ, βγ-, γγ-coin, T1/2; deduced log ft. 166Dy deduced levels, β-feeding intensity. Mass separator.

NUCLEAR REACTIONS 238U(p, F), E=16 MeV; measured (fragment)γ-coin; deduced evidence for 166Tb. Mass separator.

doi: 10.1143/JPSJ.65.1135
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1996IC01      Nucl.Instrum.Methods Phys.Res. A374, 330 (1996)

S.Ichikawa, M.Asai, K.Tsukada, A.Osa, T.Ikuta, N.Shinohara, H.Iimura, Y.Nagame, Y.Hatsukawa, I.Nishinaka, K.Kawade, H.Yamamoto, M.Shibata, Y.Kojima

Mass Separation of Neutron-Rich Isotopes using a Gas-Jet Coupled Thermal Ion Source

NUCLEAR REACTIONS 238U(p, F), E=15 MeV; measured Eγ, Iγ following fission fragment decay, fragment yield vs mass number; deduced evidence for 166Tb; deduced production σ, reaction yields for 140,144Cs, 144Ba, 144,148La, 148Pr, 152Nd, 156Pm, 160Eu. Isotope separator plus gas-jet coupled thermal ion source.

RADIOACTIVITY 166Tb(β-) [from 238U(p, F), E=15 MeV]; measured Eγ, Iγ, T1/2. Monoxide ions from gas-jet coupled thermal ion source used in conjunction with isotope separator.

doi: 10.1016/0168-9002(96)00086-1
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1853.


1995OS03      Nucl.Phys. A588, 185c (1995)

A.Osa, M.Asai, M.Koizumi, T.Sekine, S.Ichikawa, Y.Kojima, H.Yamamoto, K.Kawade

β+ Decay of Unstable Presodymium Isotopes: 127Pr, 126Pr and the New Isotope 125Pr

RADIOACTIVITY 127Pr(β+) [from 94Mo(36Ar, X), E=5.4 MeV/nucleon]; 125,126Pr(β+) [from 92Mo(36Ar, X), E=5.4 MeV/nucleon]; measured Eγ, Iγ, γγ-coin. 125Pr deduced T1/2. 127,125,126Ce deduced levels, Iγ.

doi: 10.1016/0375-9474(95)00137-P
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1971HO20      Phys.Lett. 36B, 9 (1971)

Y.Horikawa, Y.Torizuka, A.Nakada, S.Mitsunobu, Y.Kojima, M.Kimura

The Deformation in 20Ne, 24Mg and 28Si from Electron Scattering

NUCLEAR REACTIONS 20Ne, 24Mg, 28Si(e, e), (e, e'), E=183, 250 MeV; measured σ(θ) 20Ne, 24Mg, 28Si deduced nuclear deformation parameters.

doi: 10.1016/0370-2693(71)90306-6
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1970TO13      Phys.Rev.Lett. 25, 874 (1970)

Y.Torizuka, A.Yamaguchi, T.Terasawa, Y.Kojima, K.Nakahara, M.Oyamada, K.Itoh, A.Nakada, S.Mitsunobu, M.Kimura

Exitation of the Giant Resonance in 12C by Inelastic Electron Scattering

NUCLEAR REACTIONS 12C(e, e'), E=250 MeV; measured σ(Ee'); deduced inelastic form factors. 12C deduced levels, J, π.

doi: 10.1103/PhysRevLett.25.874
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1969TO01      Phys.Rev.Letters 22, 544(1969)

Y.Torizuka, M.Oyamada, K.Nakahara, K.Sugiyama, Y.Kojima, T.Terasawa, K.Itoh, A.Yamaguchi, M.Kimura

Electroexcitation of the 10.8-MeV (1-;T=0) Level of 12C and the 7.12-MeV (1-;T=0) Level of 16O

NUCLEAR REACTIONS 12C, 16O(e, e'), E=183, 250 MeV; measured σ(Ee'); deduced form factors for E1(ΔT=0) excitation. 12C, 16O deduced levels.

doi: 10.1103/PhysRevLett.22.544
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1969TO08      Phys.Rev. 185, 1499 (1969)

Y.Torizuka, Y.Kojima, M.Oyamada, K.Nakahara, K.Sugiyama, T.Terasawa, K.Itoh, A.Yamaguchi, M.Kimura

Study of Nuclear States in 60Ni by Inelastic Electron Scattering

NUCLEAR REACTIONS 60Ni(e, e'), E = 183, 250 MeV; measured σ(Ee', θ); deduced inelastic form factors. 60Ni deduced levels, B(EL).

doi: 10.1103/PhysRev.185.1499
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1969TO10      Phys.Rev. 188, 1745 (1969)

Y.Torizuka, A.Yamaguchi, K.Nakahara, M.Oyamada, T.Terasawa, K.Itoh, Y.Kojima, M.Kimura

Electroexcitation of the Giant Resonance in 12C

NUCLEAR REACTIONS 12C(e, e'), E=177, 250 MeV; measured σ(Ee', θ). 12C deduced giant resonance structure.

doi: 10.1103/PhysRev.188.1745
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