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NSR database version of April 26, 2024.

Search: Author = K.O.Nielsen

Found 11 matches.

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1976AN07      Phys.Rev.Lett. 36, 1539 (1976)

J.U.Andersen, E.Laegsgaard, K.O.Nielsen, W.M.Gibson, J.S.Forster, I.V.Mitchell, D.Ward

Time Evolution of Heavy-Ion-Induced Fission Studied by Crystal Blocking

NUCLEAR REACTIONS W(¹⁶O, F), E=40, 90, 97 MeV; measured crystal-blocking angular distribution shapes.

doi: 10.1103/PhysRevLett.36.1539
Citations: PlumX Metrics

1975AN05      Nucl.Phys. A241, 317 (1975)

J.U.Andersen, K.O.Nielsen, J.Skak-Nielsen, R.Hellborg, K.G.Prasad

Fission Lifetimes Measured by Crystal Blocking of Fragments from ²³⁸U(n, f) Reactions

NUCLEAR REACTIONS ²³⁸U(n, F), E=1.7, 2.3, 3.6 MeV; measured σ(fragment, θ). ²³⁹U deduced T_1/2. Blocking effect.

doi: 10.1016/0375-9474(75)90321-8
Citations: PlumX Metrics

1973SH07      Nucl.Phys. A204, 371 (1973)

R.P.Sharma, J.U.Andersen, K.O.Nielsen

Application of the Blocking Technique to Measure Lifetimes of Nuclear Levels Excited in (p, α) Resonance Reactions in P and Al

NUCLEAR REACTIONS ³¹P(p, α), E=642 keV; ²⁷Al(p, α), E=633 keV; studied blocking pattern. ³²S, ²⁸Si deduced compound nuclear T_1/2. GaP, Al single-crystal targets.

doi: 10.1016/0375-9474(73)90279-0
Citations: PlumX Metrics

1970GI01      Phys.Rev.Lett. 24, 114 (1970)

W.M.Gibson, K.O.Nielsen

Direct Determination of the Lifetime of Excited Compound Nuclei by Angular Distribution Measurements of Fission Fragments Emitted from Single Crystals

NUCLEAR REACTIONS ²³⁸U(p, nF), E=9, 10, 12 MeV; measured σ(θ(fragment)) in single crystals. ²³⁸Np compound nucleus deduced T_1/2.

doi: 10.1103/PhysRevLett.24.114
Citations: PlumX Metrics

1958NI04      Nuclear Phys. 5, 319 (1958)

K.O.Nielsen, O.B.Nielsen

Measurements on Isotope Separated β-Ray Sources of Re¹⁸⁶ and Re¹⁸⁸

doi: 10.1016/0029-5582(58)90032-4
Citations: PlumX Metrics

1958NI29      Nuclear Phys. 7, 561 (1958)

K.O.Nielsen, O.B.Nielsen, O.Skilbreid

Levels and Branching Ratios in Tb¹⁵⁹

doi: 10.1016/0029-5582(58)90293-1
Citations: PlumX Metrics

1957EL10      Phys.Rev. 108, 406 (1957)

B.Elbek, K.O.Nielsen, M.C.Olesen

Inelastic Scattering of 4-MeV Protons and Deuterons from Separated Isotopes of Dy¹⁶¹, Dy¹⁶³, Yb¹⁷¹, and Yb¹⁷³

doi: 10.1103/PhysRev.108.406
Citations: PlumX Metrics

1957NI11      Nuclear Phys. 2, 476 (1957)

K.O.Nielsen, O.B.Nielsen, M.A.Waggoner

Internal Conversion Coefficients for M1 Transitions in Bi²¹⁴, Po²¹⁴, and Bi²¹²

doi: 10.1016/0029-5582(56)90035-9
Citations: PlumX Metrics

1954EL25      Phys.Rev. 95, 96 (1954)

B.Elbek, K.O.Nielsen, O.B.Nielsen

Determination of Maximum Beta Energy in the Decay of P³³

RADIOACTIVITY ³³P(β^-); measured decay products, Eβ, Iβ; deduced β-spectra, Q-values. Comparison with available data.

doi: 10.1103/physrev.95.96
Citations: PlumX Metrics

1951KO10      Phys.Rev. 82, 96 (1951)

O.Kofoed-Hansen, K.O.Nielsen

Short-Lived Krypton Isotopes and their Daughter Substances

doi: 10.1103/PhysRev.82.96
Citations: PlumX Metrics

1951KO50      Kgl.Danske Videnskab.Selskab, Mat.-fys.Medd. 26, No.7 (1951)

O.Kofoed-Hansen, K.O.Nielsen

Measurements on Short-Lived Radioactive Krypton Isotopes from Fission after Isotopic Separation