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NSR database version of May 24, 2024.

Search: Author = H.Gruppelaar

Found 21 matches.

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1995NA35      Nucl.Sci.Eng. 119, 97 (1995)

P.Nagel, J.Rodens, M.Blann, H.Gruppelaar

Intermediate Energy Nuclear Reaction Code Intercomparison: Applications to Transmutation of Long-Lived Reactor Wastes

NUCLEAR REACTIONS 208Pb, 90Zr(p, xn), E=25-800 MeV; 90Zr(p, xp), E=80, 160 MeV; analyzed σ(θ, θ(nucleon)). Zr, Pb(p, xn), (p, xp), E < 1 GeV; analyzed nucleon multiplicities. Intercomparison of codes.

doi: 10.13182/NSE95-A24074
Citations: PlumX Metrics


1987SH08      Nucl.Phys. A466, 333 (1987)

Shi Xiangjun, H.Gruppelaar, J.M.Akkermans

Effects of Angular-Momentum Conservation in Unified Pre-Equilibrium and Equilibrium Reaction Models

NUCLEAR REACTIONS 93Nb(n, nX), E=14.6 MeV; 102Ru(n, nX), E=14.5 MeV; calculated angle integrated σ; deduced angular momentum conservation effects. Master equation theory, equilibrium, pre-equilibrium reaction models.

doi: 10.1016/0375-9474(87)90445-3
Citations: PlumX Metrics


1986GR22      Radiat.Eff. 95, 59 (1986)

H.Gruppelaar, J.M.Akkermans

A New Code System for the Calculation of Double Differential Reaction Cross Sections

NUCLEAR REACTIONS 93Nb(n, γ), E=1-15 MeV; calculated σ, Eγ, Iγ; 93Nb(n, n'), E=threshold-1, 14.6 MeV; Nb, Pb(n, nX), E=7, 14.6, 15 MeV; calculated Legendre coefficients. Statistical exciton model.

doi: 10.1080/00337578608208669
Citations: PlumX Metrics


1986HO28      Radiat.Eff. 95, 27 (1986)

P.E.Hodgson, G.M.Field, H.Gruppelaar, P.Nagel

Pre-Equilibrium Processes in Nuclear Reactions

NUCLEAR REACTIONS 93Nb(n, xn), E=10, 14.6, 20, 25.7 MeV; calculated angle integrated σ(En). 59Co(n, xn), (n, xp), E=14 MeV; 65Cu(p, xn), E=26.7 MeV; calculated σ(θ), σ(θn, En), σ(θp, Ep). Semi-classical models, quantum mechanical theory.

doi: 10.1080/00337578608208667
Citations: PlumX Metrics


1985AK03      Phys.Lett. 157B, 95 (1985)

J.M.Akkermans, H.Gruppelaar

Analysis of Continuum Gamma-Ray Emission in Precompound-Decay Reactions

NUCLEAR REACTIONS 93Nb(n, γ), (n, nγ), E=1-15 MeV; calculated continuum γ production σ(E). 93Nb(n, γ), E=14.1 MeV; calculated primary γ-spectra. Precompound decay, statistical description.

doi: 10.1016/0370-2693(85)91524-2
Citations: PlumX Metrics


1985AK04      Z.Phys. A321, 605 (1985)

J.M.Akkermans, H.Gruppelaar

Comments on the State Densities and the Transition Rates in the Pre-Equilibrium Exciton Model

NUCLEAR REACTIONS 93Nb(n, n'X), E=14.5 MeV; calculated angle-integrated σ(E). Preequilibrium exciton model, state densities, transition rates.

doi: 10.1007/BF01432437
Citations: PlumX Metrics


1983CO07      Lett.Nuovo Cim. 36, 431 (1983)

C.Costa, H.Gruppelaar, J.M.Akkermans

Energy Dependence of Pre-Equilibrium Angular Distributions

NUCLEAR REACTIONS 93Nb(n, n'), E=14.6, 40 MeV; calculated reduced Legendre coefficient vs ejectile energy. Angle energy correlated model.

doi: 10.1007/BF02747182
Citations: PlumX Metrics


1983CO10      Phys.Rev. C28, 587 (1983)

C.Costa, H.Gruppelaar, J.M.Akkermans

Angle-Energy Correlated Model of Preequilibrium Angular Distributions

NUCLEAR REACTIONS Nb(n, xn), E=10-60 MeV; calculated σ(E, E(n), θ), Legendre coefficients. Generalized exciton model, preequilibrium emission.

doi: 10.1103/PhysRevC.28.587
Citations: PlumX Metrics


1981AK02      Z.Phys. A300, 345 (1981)

J.M.Akkermans, H.Gruppelaar

Random-Walk Model of Precompound Decay: Dynamics and multi-particle emission

NUCLEAR REACTIONS 127I(n, xn), E=15-50 MeV; calculated σ(E). Random walk model, precompound decay.

doi: 10.1007/BF01419867
Citations: PlumX Metrics


1980AK01      Phys.Rev. C22, 73 (1980)

J.M.Akkermans, H.Gruppelaar, G.Reffo

Angular Distributions in a Unified Model of Preequilibrium and Equilibrium Neutron Emission

NUCLEAR REACTIONS Be, C, Na, Mg, Al, Si, P, S, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Se, Br, Zr, Nb, Cd, In, Sn, Sb, I, Ta, W, Au, Hg, Pb, Bi(n, nα), E=14.6 MeV; calculated σ(En, θ), Legendre coefficients. Generalized exciton model, preequilibrium, equilibrium analysis, Hauser-Feshbach model.

doi: 10.1103/PhysRevC.22.73
Citations: PlumX Metrics


1977GR13      Nucl.Sci.Eng. 62, 756 (1977)

H.Gruppelaar, G.Reffo

Some Properties of the Width Fluctuation Factor

NUCLEAR REACTIONS 100Mo(n, γ), E=0.9 MeV; calculated σ, effect of width fluctuations.

doi: 10.13182/NSE77-A15219
Citations: PlumX Metrics


1972GR04      Nucl.Phys. A179, 737 (1972)

H.Gruppelaar, P.J.M.Smulders

Electromagnetic Decay of Low-Lying States of 43Ca

NUCLEAR REACTIONS 43,44Ca(p, p'γ), E=4.235 MeV; measured Eγ, Iγ, pγ-coin, Doppler-shift attenuation. 43,44Ca deduced levels, γ-branching, T1/2, J, π. Enriched target.

doi: 10.1016/0375-9474(72)90616-1
Citations: PlumX Metrics


1971BU21      Nucl.Phys. A176, 161 (1971)

A.S.K.Buisman, P.B.Smith, P.J.M.Smulders, H.Gruppelaar

Low-Lying Levels of 24Na

NUCLEAR REACTIONS 26Mg(d, αγ), E=5.05 MeV; measured σ(Eα, Eγ, θ(αγ)). 24Na deduced levels, J, γ-branching, multipole mixing. Enriched target.

doi: 10.1016/0375-9474(71)90738-X
Citations: PlumX Metrics


1970SP02      Nucl.Phys. A145, 449 (1970)

A.M.J.Spits, A.M.F. Op den Kamp, H.Gruppelaar

Gamma Rays from Thermal-Neutron Capture in Natural and 28Si Enriched Silicon

NUCLEAR REACTIONS 28,29,30Si, 6Li, 14N, 19F, 27Al, 54,56Fe, 207Pb(n, γ), E=thermal; 28Si(n, n'γ), E=fast; measured Eγ, Iγ; deduced Q. 29,30,31Si deduced levels, γ-branching. Natural, 28Si enriched targets, Ge(Li) detector.

doi: 10.1016/0375-9474(70)90435-5
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20218.


1969GR08      Nucl.Phys. A131, 180 (1969)

H.Gruppelaar, A.M.F.Op Den Kamp, A.M.J.Spits

Investigation of the 42Ca(n, γ)43Ca Reaction

NUCLEAR REACTIONS 42Ca(n, γ), E=thermal; measured Eγ, Iγ, γγ- coin; deduced Q. 43Ca deduced levels, γ-branching, J. Enriched target, Ge(Li) detector.

doi: 10.1016/0375-9474(69)90818-5
Citations: PlumX Metrics


1969GR21      Nucl.Phys. A133, 545 (1969)

H.Gruppelaar

Gamma-Gamma Angular-Correlation Measurements in the 44Ca(n, γ)45Ca Reaction

NUCLEAR REACTIONS 44Ca(n, γ), E = thermal; measured γγ(θ). 45Ca levels deduced J, γ-mixing. Enriched target; Ge(Li), NaI detectors.

doi: 10.1016/0375-9474(69)90554-5
Citations: PlumX Metrics


1968GR11      Nucl.Phys. A114, 463 (1968)

H.Gruppelaar, P.Spilling, A.M.J.Spits

Investigation of the 44Ca(n, γ)45Ca Reaction

NUCLEAR REACTIONS 44Ca(n, γ), E=thermal; measured Iγ, Eγ; deduced Q. 45Ca deduced levels, branching, J, π. Enriched 44Ca target, Ge(Li) detector.

doi: 10.1016/0375-9474(68)90367-9
Citations: PlumX Metrics


1968SP01      Nucl.Phys. A113, 395(1968)

P.Spilling, H.Gruppelaar, H.F.De vries, A.M.J.Spits

The Reactions 12C(n, γ)13C and 19F(n, γ)20F

NUCLEAR REACTIONS 6Li, 12C, 19F, 56Fe(n, γ), E=thermal; 19F(n, n'γ), E= fast; 19F(n, α), E= fast; measured Eγ, Iγ; deduced Q. 7Li, 13C, 16O, 19F, 20F deduced levels, branchings. Natural targets.

doi: 10.1016/0375-9474(68)90414-4
Citations: PlumX Metrics


1967GR16      Nucl.Phys. A102, 226 (1967)

H.Gruppelaar, P.Spilling

Thermal-Neutron Capture Gamma Rays from Natural Calcium

NUCLEAR REACTIONS 40,44Ca(n, γ), E=thermal; measured Eγ, Iγ; deduced Q. 41,45Ca deduced levels, branching. Enriched 40Ca target, Ge(Li) detector.

doi: 10.1016/0375-9474(67)90333-8
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20215.


1967SP05      Nucl.Phys. A102, 209 (1967)

P.Spilling, H.Gruppelaar, A.M.F.Op Den Kamp

Thermal-Neutron Capture Gamma Rays from Natural Magnesium and Enriched 25Mg

NUCLEAR REACTIONS 24,25,26Mg, 56Fe, 63Cu, 207Pb(n, γ), E=thermal; measured σ(Eγ); deduced Q. 25,26,27Mg deduced levels, branching. Enriched 25Mg target, Ge(Li) detector.

doi: 10.1016/0375-9474(67)90332-6
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20214.


1966VA10      Nucl.Phys. 80, 321(1966)

G.Van Middelkoop, H.Gruppelaar

Investigation of the 32S(n, γ)33S Reaction

NUCLEAR REACTIONS 32S(n, γ), E = thermal; measured Eγ, Iγ, γγ-coin., γγ(θ). 33S deduced levels J, branching. Natural target.

doi: 10.1016/0029-5582(66)90092-7
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20211.


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