NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = H.L.Nielsen Found 49 matches. 2003KU28 Nucl.Phys. A728, 3 (2003) J.Kurcewicz, M.Pfutzner, P.Hornshoj, H.L.Nielsen, B.Szweryn Radiative electron capture in the first forbidden unique decay of 204Tl RADIOACTIVITY 204Tl(EC) [from 203Tl(n, γ)]; measured Eγ, Iγ, X-ray spectra, (X-ray)γ-coin; deduced shape factors, total probability per K-capture. First-forbidden decay, comparison with internal bremsstrahlung theory.
doi: 10.1016/j.nuclphysa.2003.08.008
1996PF04 Nucl.Phys. A611, 270 (1996) M.Pfutzner, P.Hornshoj, H.L.Nielsen, J.Kurpeta, A.Plochocki Radiative Electron Capture in the Second Forbidden Decay of 137La RADIOACTIVITY 137La(EC); measured internal bremsstrahlung, Iγ, γ(K X-ray)-coin; deduced shape factors, internal bremsstrahlung branching, log ft. Forbidden decays. Detour transitions model.
doi: 10.1016/S0375-9474(96)00392-2
1992KA05 Nucl.Phys. A537, 1 (1992) L.Kalinowski, Z.Janas, M.Pfutzner, A.Plochocki, P.Hornshoj, H.L.Nielsen Detour Transitions in Forbidden Radiative Electron Capture Decay RADIOACTIVITY 41Ca, 59Ni(EC); calculated 1S-component shape factors of internal bremsstrahlung associated with forbidden transitions; deduced structure role in detour transition.
doi: 10.1016/0375-9474(92)90153-B
1991JA02 Nucl.Phys. A524, 391 (1991) Z.Janas, M.Pfutzner, A.Plochocki, P.Hornshoj, H.L.Nielsen Study of the Internal Bremsstrahlung Accompanying the (2nu)-Forbidden Electron Capture Decay of 59Ni RADIOACTIVITY 59Ni [from 58Ni(n, γ)]; measured internal bremsstrahlung Iγ, γ(K X-ray)-coin; deduced shape factors, γ branching, β+ branching.
doi: 10.1016/0375-9474(91)90276-C
1991TH03 Phys.Rev. C43, 2874 (1991) M.S.Thomsen, J.Heinemeier, P.Horshoj, H.L.Nielsen, N.Rud 31Si(2.6 h)(n, γ)32Si Cross Section Measured by Accelerator Mass Spectrometry NUCLEAR REACTIONS 31Si(n, γ), E=thermal, epithermal; measured capture σ, 32,30Si isotope ratio. Radioactive target from double neutron capture on Si, accelerator mass spectrometry.
doi: 10.1103/PhysRevC.43.2874
1991TH06 Nucl.Phys. A534, 327 (1991) M.S.Thomsen, J.Heinemeier, P.Hornshoj, H.L.Nielsen, N.Rud Half-Life of 32Si Measured via Accelerator Mass Spectrometry RADIOACTIVITY 32,31Si [from 18O(16O, 2p), (16O, n2p), E ≈ 35 MeV]; measured isotopic abundance, activity ratios. 32Si deduced T1/2. Tandem accelerator mass spectrometry, β-scintillation spectrometry, enriched 18O target.
doi: 10.1016/0375-9474(91)90501-V
1986SZ01 Z.Phys. A323, 97 (1986) J.Szerypo, B.Szweryn, P.Hornshoj, H.L.Nielsen, M.Luontama Radiative Capture of Protons by the Deformed Nuclide 232Th NUCLEAR REACTIONS, ICPND 232Th(p, γ), E=7-20 MeV; 232Th(p, F), E=11-20 MeV; measured radiative capture, fission σ(E). 233Pa deduced GDR excitation via DSD process. Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0383. 1985PE09 Hyperfine Interactions 23, 17 (1985) J.W.Petersen, G.Weyer, H.L.Nielsen, S.Damgaard, W.J.Choyke, H.Andreasen, and the ISOLDE Collaboration 119Sn Mossbauer Study of the Implantation Behaviour of 119In, 119mSn, 119Sb, and 119mTe Ions in SiC NUCLEAR REACTIONS 119Sn(γ, γ), E=24 keV; measured Mossbauer conversion electron, emission spectra; deduced 119In, 119,119mSn, 119Sb, 119mTe ion implantation behavior in SiC.
doi: 10.1007/BF02060136
1982BE09 Nucl.Phys. A378, 1 (1982) B.Bengtson, H.L.Nielsen, N.Rud, K.Wilsky Half-Life of the α-Emitting Excited 0+ State in 212Po RADIOACTIVITY 228Th [from natural 232Th]; measured Eγ, Iγ, I(ce), γγ(θ), βα(t). 212Po levels deduced J. 212Po level deduced T1/2, nuclear strength parameter, B(E2), α-width. Ge(Li), Nal(Tl) detectors, plastic scintillators surface-barrier silicon detector, magnetic β-ray spectrometer.
doi: 10.1016/0375-9474(82)90379-7
1981HO18 Nucl.Instrum.Methods 186, 257 (1981) P.Hornshoj, H.L.Nielsen, N.Rud, H.L.Ravn The Halflife of 194Hg Determined by Means of Quantitative On-Line Mass Separation RADIOACTIVITY 194Hg [from Pb(p, X), E=600 MeV]; measured T1/2, Eγ, Iγ; deduced log ft, EC/β+, Q(EC). Electromagnetic isotope separator.
doi: 10.1016/0029-554X(81)90913-7
1979BE12 Nucl.Phys. A319, 21 (1979) B.Bengtson, H.L.Nielsen, N.Rud Half-Life of the α-Emitting Excited 0+ State in 214Po RADIOACTIVITY 226Ra [from natural 238U]; measured Eγ, Iγ, β-Xce(t). 214Po level deduced T1/2, nuclear-strength parameter, B(E2), α-width. Ge(Li), NaI(Tl) detectors, plastic scintillators.
doi: 10.1016/0375-9474(79)90168-4
1977HO18 Phys.Rev.Lett. 39, 537 (1977) P.Hornshoj, H.L.Nielsen, N.Rud Evidence Against Anomalous ϵ/β+ Ratios in the β Decay of 145Gd RADIOACTIVITY 145Gd; measured Eγ, Iγ, T1/2; deduced Q, Iβ, I(EC).
doi: 10.1103/PhysRevLett.39.537
1974PR06 Phys.Scr. 9, 208 (1974) Hindrance Factors for Unique First-Forbidden β-Transitions in 161Tb RADIOACTIVITY 161Tb; measured Eγ, Iγ, deduced log ft. 161Dy levels deduced γ-branching.
doi: 10.1088/0031-8949/9/4/003
1971RU05 Nucl.Phys. A167, 401 (1971) Experimental Investigation of the Perturbed β-Vibrational Bands in 152Sm, 154Gd and 156Gd RADIOACTIVITY 152Eu[from 151Eu(n, γ)]; measured Eγ, Iγ, γγ(θ); 154Eu[from 153Eu(n, γ)]; measured Eγ, Iγ, γγ(θ), I(ce); 156Eu[from 154Sm(n, γ), chem.]; measured Eγ, Iγ, 152Sm, 154Gd, 156Gd deduced B(EL), band-mixing parameters z0, z(βγ). 152Sm, 154Gd deduced ICC, γ-mixing. Enriched targets.
doi: 10.1016/0375-9474(71)90085-6
1970BE57 Nucl.Phys. A159, 249 (1970) B.Bengtson, J.Jensen, M.Moszynski, H.L.Nielsen Odd Parity States in 238Pu RADIOACTIVITY 238Np[from 237Np(n, γ)]; measured Eγ, Iγ, γγ-, ceγ-coin., γγ-, βγ-delay; deduced log ft. 238Pu deduced levels, J, π, T1/2.
doi: 10.1016/0375-9474(70)90040-0
1970HA18 Nucl.Phys. A148, 249 (1970) P.G.Hansen, H.L.Nielsen, K.Wilsky, M.Alpsten, M.Finger, A.Lindahl, R.A.Naumann, O.B.Nielsen Studies of the α-Active Isotopes of Mercury, Gold, and Platinum RADIOACTIVITY 179,180,181,182,183,184,185,186,187Hg[from Pb(p, X)]; 181,182,183,184,185Au, 175,176,177,178,179Pt[from Hg decay]; measured T1/2, Eα, Iα, αγ-coin; deduced Qα, α-branching, T1/2(α). 177,178,180,181,183Pt, 174Os deduced levels. Si surface-barrier detector, NaI(Tl)-Ge(Li) coin.
doi: 10.1016/0375-9474(70)90622-6
1970SH09 Nucl.Phys. A152, 225 (1970) R.P.Sharma, H.L.Nielsen, P.G.Hansen Hindrance Factors for Unique First-Forbidden Beta Transitions in Deformed Nuclei RADIOACTIVITY 159Dy[from 158Dy(n, γ)]; 169Er[from 168Er(n, γ)]; 185W[from 184W(n, γ)]; measured Eγ, Iγ; deduced log f1t, hindrance factors, Iβ.
doi: 10.1016/0375-9474(70)90824-9
1970SH10 Nucl.Phys. A152, 401 (1970) The E2 Strength of the 191 keV Transition in 197Au RADIOACTIVITY 197Hg[from 196Hg(n, γ)]; measured I(ce). 197Au transitions deduced γ-multipolarity, B(E2). Enriched target.
doi: 10.1016/0375-9474(70)90840-7
1969BE14 Nucl.Phys. A127, 679 (1969) Half-Life of the 2- State at 990 keV in 234U RADIOACTIVITY 234Pa [from natural U] measured γγ-delay. 234U level deduced T1/2.
doi: 10.1016/0375-9474(69)91040-9
1969HA03 Phys.Lett. 28B, 415 (1969); Erratum Phys.Lett. 28B, 663 (1969) P.G.Hansen, P.Hornshoj, H.L.Nielsen, K.Wilsky, H.Kugler, G.Astner, E.Hagebo, J.Hudis, A.Kjelberg, F.Munnich, P.Patzelt, M.Alpsten, G.Andersson, A.Appelqvist, B.Bengtsson, R.A.Naumann, O.B.Nielsen, E.Beck, R.Foucher, J.P.Husson, J.Jastrzebski, A.Johnson, J.Alstad, T.Jahnsen, A.C.Pappas, T.Tunaal, R.Henck, P.Siffert, G.Rudstam Decay Characteristics of Short-Lived Radio-Nuclides Studied by On-Line Isotope Separator Techniques RADIOACTIVITY 43Ar, 101Cd, 109Sn, 115I, 115Xe, 205,225,226Rn, 224,225,226Fr; measured T1/2. 75Kr, 119I, 119Xe, 186Pt, 186,188Au, 187,188Hg; measured Eγ. 198,200,202Po; measured Iα. 102,103Cd, 116,117,118I, 116,117,118Xe, 184Pt, 184Au; measured T1/2, Eγ. 79,81Kr, 125,127Xe; measured T1/2, Eγ, I(ce). 103Ag; measured T1/2, Eγ, I(ce), γγ-delay. 187,189,191Pt, 189Au, 206Hg; measured Eγ, γγ-delay. 181Hg; measured T1/2, Eα. 182,183,185Hg; measured T1/2, Eα, Iα. 184,186Hg; measured T1/2, Eα, Iα, Eγ. 202,204,206Rn; measured T1/2, Iα. 103Pd, 187,189,191Ir, 189Pt, 206Tl deduced levels, T1/2.
doi: 10.1016/0370-2693(69)90337-2
1969NI11 Phys.Letters 30B, 169 (1969) A Pure Fermi Transition in the Beta Decay of 156Eu RADIOACTIVITY 156Eu; measured Eγ, Iγ, ICC, γγ-coin, γγ(θ); deduced log ft, Fermi matrix elements. 156Gd deduced levels, J, π.
doi: 10.1016/0370-2693(69)90360-8
1968BJ06 Nucl.Phys. A118, 261(1968) S.Bjornholm, J.Borggreen, D.Davies, N.J.S.Hansen, J.Pedersen, H.L.Nielsen Energy Levels in 234U Populated in the β-Decay of 234Pa(UZ) RADIOACTIVITY 234Pa [from 238U decay]; measured Eγ, Eβ, Iγ, I(ce), Iβ, βγ-, γγ-, ceγ-coin, γγ-delay. 234U deduced levels, J, π. Ge(Li) detector.
doi: 10.1016/0375-9474(68)90337-0
1968HA23 Nucl.Phys. A115, 641 (1968) R.J.Hanson, P.G.Hansen, H.L.Nielsen, G.Sorensen Decay Scheme of 188Pt, Q-Value and K-Electron-Capture Fractions P(K) RADIOACTIVITY 188Pt [from 197Au (p, spallation)]; measured Eγ, Iγ, I(ce), K-capture probability P(K), (K-to-total-capture ratios), deduced Qβ. 188Ir deduced levels, J, π, log ft.
doi: 10.1016/0375-9474(68)90755-0
1968NI03 Phys.Lett. 27B, 150 (1968) H.L.Nielsen, K.B.Nielsen, N.Rud The E2 + M1 Decay of the 2+ Beta-Vibrational State in 178Hf RADIOACTIVITY 178Ta; measured Iγ, γγ-coin, γγ(θ). 178Hf transitions deduced γ-mixing.
doi: 10.1016/0370-2693(68)90055-5
1968NI04 Nucl.Phys. A115, 377 (1968) Levels in the 89-Neutron Nucleus 153Gd RADIOACTIVITY 153Tb [from 181Ta(p, 17p12n)]; measured Eγ, Iγ, E(ce), I(ce), ceγ-coin. 153Gd deduced levels, J, π, log ft. Isotope-separated source.
doi: 10.1016/0375-9474(68)90010-9
1967HA04 Phys.Letters 24B, 95 (1967) P.G.Hansen, H.L.Nielsen, K.Wilsky, J.G.Cuninghame Fermi Matrix Elements in the Beta Decay of 234Np NUCLEAR STRUCTURE 234Np; measured not abstracted; deduced nuclear properties.
doi: 10.1016/0370-2693(67)90355-3
1967HA38 Izv.Akad.Nauk SSSR, Ser.Fiz. 31, 68 (1967); Bull.Acad.Sci.USSR, Phys.Ser. 31, 74 (1968) P.G.Hansen, H.L.Nielsen, K.Wilsky Pure-Fermi Beta Transitions with ΔT = 1: The Decay of 156Eu to an Excited 0+ State NUCLEAR STRUCTURE 156Eu; measured not abstracted; deduced nuclear properties.
1967NI02 Nucl.Phys. A93, 385 (1967) H.L.Nielsen, K.Wilsky, J.Zylicz, G.Sorensen The Kπ=0+ Bands of 178Hf and the Allowed Unhindered Beta Transformations of 9.3-min 178Ta and 22-D 178W RADIOACTIVITY 178W [from 181Ta(p, 4n), 197Au(p, 6p14n)]; measured I(X-ray); deduced Q, log ft. 178Ta [from decay of 178W]; measured T1/2, Eγ, Iγ, I(X-ray), γγ-coin. 178Hf deduced levels, J, π, log ft. Natural targets, Ge(Li) detector.
doi: 10.1016/0375-9474(67)90279-5
1966HA15 Nucl.Phys. 76, 257 (1966) P.G.Hansen, H.L.Nielsen, K.Wilsky, Y.K.Agarwal, C.V.K.Baba, S.K.Bhattacherjee Spectral Shapes and a Beta-Gamma Directional Correlation in the Beta Decay of 172Tm (Jπ=2-) RADIOACTIVITY 172Tm [from n-capture in 170Er, chem]; measured Eβ, Iβ, βγ-coin, shape factors, βγ-coin(θ); deduced log f1t'S, multipolarity of β. Enriched target.
doi: 10.1016/0029-5582(66)90022-8
1966HA26 Nucl.Phys. 82, 614 (1966) P.G.Hansen, H.L.Nielsen, E.T.Williams, K.Wilsky Levels in the Odd Nucleus 156Eu RADIOACTIVITY 156Sm [from 239Pu(n, F), chem]; measured Eγ, Iγ, Iγ, ce, ICC, Eβ, ceγ-, ceβ-, βγ-coin, Qβ. 156Eu deduced levels, J, π.
doi: 10.1016/0029-5582(66)90475-5
1966HA36 Nucl.Phys. 89, 571 (1966) P.G.Hansen, H.L.Nielsen, K.Wilsky The K-Forbidden Beta Decay of 154Eu RADIOACTIVITY 154Eu [from 153Eu(n, γ)]; measured Eβ, Iβ, βγ-coin, Qβ, shape factor; deduced branching ratio, multipole order of β-transition. Enriched target.
doi: 10.1016/0029-5582(66)90932-1
1966ZY02 Nucl.Phys. 84, 13 (1966) J.Zylicz, P.G.Hansen, H.L.Nielsen, K.Wilsky Sign and Magnitude of the Coriolis Coupling Between the 5/2-(532) and 7/2-(523) Orbitals in 161Tb RADIOACTIVITY 161Gd[from 160Gd(n, γ)]; measured T1/2, Eγ, Iγ, Eβ, γγ-coin. 161Tb deduced levels, J, π, Coriolis-coupling parameter A(K). Enriched target.
doi: 10.1016/0029-5582(66)90429-9
1965HA24 Nucl.Phys. 71, 481 (1965) P.G.Hansen, H.L.Nielsen, E.T.Williams, K.Wilsky The ±p=±n = 1/2 Excitations in the Odd Nucleus 172Tm RADIOACTIVITY 172Er [from 170Er(2n, γ)]; measured Eγ, Iγ, E(ce), I(ce), γce--coin, ICC. 172Tm deduced levels, J, π. Enriched source.
doi: 10.1016/0029-5582(65)90759-5
1965HA30 Phys.Letters 19, 304 (1965) P.G.Hansen, H.L.Nielsen, K.Wilsky, J.Treherne An Isobaric-Spin Impurity in the 170Lu Ground State NUCLEAR STRUCTURE 170Lu; measured not abstracted; deduced nuclear properties.
doi: 10.1016/0031-9163(65)90998-4
1965JO13 Nucl.Phys. 72, 617 (1965) N.R.Johnson, K.Wilsky, P.G.Hansen, H.L.Nielsen High-Energy Transitions in the Decay of 132I RADIOACTIVITY 132I [from 132Te(β-)]; measured Eγ, Iγ, E(ce), I(ce), Eβ.
doi: 10.1016/0029-5582(65)90415-3
1965WI08 Phys.Letters 15, 143 (1965) E.T.Williams, P.G.Hansen, J.Lippert, H.L.Nielsen, K.Wilsky An Odd-Odd-Nucleus with 0+ Ground State (Eu156) RADIOACTIVITY 156Sm, 156Eu(β-) [from 239Pu(n, F)156Sm, E thermal]; measured decay products, Eβ, Iβ, Eγ, Iγ; deduced γ-ray energies, level energies, J, π, partial decay scheme, γ-γ-angular correlation coefficients, log ft, amplitude of the isobaric admixture. Comparison with Nilsson orbitals calculation. Electron spectroscopy with a six-gap spectrometer.
doi: 10.1016/0031-9163(65)91315-6
1964BE10 Nucl.Phys. 50, 657 (1964) U.Bertelsen, G.T.Ewan, H.L.Nielsen Decay of Pm151 NUCLEAR STRUCTURE 151Pm; measured not abstracted; deduced nuclear properties.
doi: 10.1016/0029-5582(64)90238-X
1964BL11 Nucl. Phys. 55, 331 (1964) K.J.Blinowska, P.G.Hansen, H.L.Nielsen, O.Schult, K.Wien The Decay of 23.5 min U239 RADIOACTIVITY 239U[from 238U(n, γ)]; measured β, Eβ, Iγ, ICC. 239Np deduced levels, Qβ. Enriched target.
doi: 10.1016/0029-5582(64)90151-8
1964HA26 Nucl.Phys. 55, 171 (1964) P.G.Hansen, N.R.Johnson, H.L.Nielsen The K-Forbidden Beta Decay of Tb160 RADIOACTIVITY 160Tb[from 159Tb(n, γ)]; measured β, βγ coin.
doi: 10.1016/0029-5582(64)90137-3
1964HA28 Nucl.Phys. 54, 657 (1964) P.G.Hansen, H.L.Nielsen, K.Wilsky A Revised Scheme for the Beta Decay of 115-day Ta182 RADIOACTIVITY 182Ta[from 181Ta(n, γ)]; measured β, βγ-coin, Qβ. 182W deduced levels.
doi: 10.1016/0029-5582(64)90441-9
1964JO08 Bull.Am.Phys.Soc. 9, No.4, 485, JA15 (1964) N.R.Johnson, K.Wilsky, P.G.Hansen, H.L.Nielsen High-Energy Transitions in the Decay of 132I NUCLEAR STRUCTURE 132I; measured not abstracted; deduced nuclear properties.
1962GA05 Phys.Rev. 126, 1520 (1962) C.J.Gallagher, Jr., H.L.Nielsen Decay of 2.1-Hour Ta178 NUCLEAR STRUCTURE 178Ta; measured not abstracted; deduced nuclear properties.
doi: 10.1103/PhysRev.126.1520
1962HA03 Nuclear Phys. 30, 140 (1962) P.G.Hansen, H.L.Nielsen, K.Wilsky Highlying States in Sn116 Populated in the Decay of 54 min In116m NUCLEAR STRUCTURE 116In; measured not abstracted; deduced nuclear properties.
doi: 10.1016/0029-5582(62)90038-X
1962HA51 AERE-M-1078, p.63 (1962) P.G.Hansen, H.L.Nielsen, K.Wilsky Search for an Isomeric State in Pr144 NUCLEAR STRUCTURE 144Ce; measured not abstracted; deduced nuclear properties.
1961BJ02 J.Inorg.Nuclear Chem. 21, 193 (1961) S.Bjornholm, H.L.Nielsen, O.B.Nielsen, G.Sidenius, O.Skilbreid, A.Svanheden Some Neutron-Deficient Isotopes of Thulium and Erbium. A Survey of Half-Lives and Gamma-Ray Spectra with the Use of Mass-Separated Samples NUCLEAR STRUCTURE 159Dy, 162Tm, 161Ho, 160Er, 167Tm, 166Tm, 163Er, 163Ho, 163Tm, 165Er, 164Tm, 168Tm, 169Er, 165Tm; measured not abstracted; deduced nuclear properties.
doi: 10.1016/0022-1902(61)80292-3
1961GA05 Phys.Rev. 122, 1590 (1961) C.J.Gallagher, Jr., H.L.Nielsen, O.B.Nielsen Intrinsic Excited States in Hf178 Populated by the Allowed Decay of 9.3-min Ta178 NUCLEAR STRUCTURE 178Ta; measured not abstracted; deduced nuclear properties.
doi: 10.1103/PhysRev.122.1590
1961GA06 Nuclear Phys. 24, 422 (1961) C.J.Gallagher, Jr., H.L.Nielsen The 5.3 sec Isomer of W183 NUCLEAR STRUCTURE 183Ta, 183W; measured not abstracted; deduced nuclear properties.
doi: 10.1016/0029-5582(61)90409-6
1960SH04 Nuclear Phys. 16, 518 (1960) R.K.Sheline, H.L.Nielsen, A.Sperduto Coulomb Excitation of Beta- and Gamma-Vibrational States in Sm152 NUCLEAR STRUCTURE 152Sm; measured not abstracted; deduced nuclear properties.
doi: 10.1016/S0029-5582(60)81011-5
1959SH68 Nuclear Phys. 14, 140 (1959) R.K.Sheline, H.L.Nielsen, A.Sperduto An Aid in the Determination of Nuclear Spins
doi: 10.1016/0029-5582(59)90077-X
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