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NSR database version of April 27, 2024.

Search: Author = U.Brosa

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1999BR06      Phys.Rev. C59, 767 (1999)

U.Brosa, H.-H.Knitter, T.-S.Fan, J.-M.Hu, S.-L.Bao

Systematics of Fission-Channel Probabilities

NUCLEAR STRUCTURE ^234,236,239U, ^232,233Th, ²³⁸Np, ^240,242Pu; analyzed fission channel probabilities; deduced barrier parameters.

doi: 10.1103/PhysRevC.59.767
Citations: PlumX Metrics

1992BR19      Z.Phys. A343, 39 (1992)

U.Brosa, H.-H.Knitter

The Scission Neutron Spectrum of ²⁵²Cf(SF)

RADIOACTIVITY ²⁵²Cf(SF); analyzed fission neutron data; deduced scission neutron spectra, fraction to total fission neutrons, pseudo scission neutron temperature.

doi: 10.1007/BF01291595
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1990BR35      Phys.Rep. 197, 167 (1990)

U.Brosa, S.Grossmann, A.Muller

Nuclear scission

doi: 10.1016/0370-1573(90)90114-H
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1990GI08      Phys.Lett. 252B, 198 (1990)

P.Gippner, U.Brosa, H.Feldmeier, R.Schmidt

' Fast Fusion ' and ' Quasifission ': Two Possible mass-relaxation modes in asymmetric heavy-ion collisions leading to systems with Z(tot) = 108

NUCLEAR REACTIONS, ICPND ²³⁸U(³²S, X), E=192 MeV; ²³²Th(⁴⁰Ar, X), E=220 MeV; calculated fusion σ relative to capture. Simple diffusion model.

doi: 10.1016/0370-2693(90)90861-Y
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1988BR25      Phys.Rev. C38, 1944 (1988)

U.Brosa

Multimodal Fission and Neutron Evaporation

RADIOACTIVITY ²⁵²Cf, ²⁵⁸Fm(SF); calculated average neutron multiplicities; deduced new features.

doi: 10.1103/PhysRevC.38.1944
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1988GR05      Nucl.Phys. A481, 340 (1988)

S.Grossmann, U.Brosa, A.Muller

Energy Fluctuations in Multichannel Fission and Heavy Ion Collisions

NUCLEAR STRUCTURE ^256,258Fm, ²⁵²Cf, ²³⁶U, ^259,260Md, ²⁵⁸No, ²⁶⁰Rf; calculated fission fragment total kinetic energy variances.

doi: 10.1016/0375-9474(88)90501-5
Citations: PlumX Metrics

1986BR27      Z.Phys. A325, 241 (1986)

U.Brosa, S.Grossmann, A.Muller

Fission Channels in ²⁵⁸Fm

RADIOACTIVITY ²⁵⁸Fm(SF); analyzed fission characteristics; deduced quantum effect generated channels role.

1986BR36      Z.Naturforsch. 41a, 1341 (1986)

U.Brosa, S.Grossmann, A.Muller

Four Channels in the Fission of ²⁵²Cf

RADIOACTIVITY ²⁵²Cf(SF); calculated fission fragment mass distribution, total kinetic energies, neutron multiplicities, relative abundances. Strutinsky-type calculations.

1985BR11      Nucl.Phys. A441, 109 (1985)

U.Brosa, W.Westmeier

Quasi-Elastic Reaction Cross Sections and the Merging Instability

NUCLEAR REACTIONS ²⁷Al(¹⁶O, X), E=90, 100 MeV; ⁴⁰Ca(²⁰Ne, X), E=151 MeV; ¹⁰⁷Ag(⁴⁰Ca, X), E ≤ 303 MeV; ⁹²Mo(⁹²Mo, X), E=1350 MeV; ⁵⁶Fe(¹³²Xe, X), E=600-940 MeV; Ag(⁸⁶Kr, X), E=620 MeV; ¹⁸¹Ta(¹⁶O, X), E=83, 90, 96 MeV; ¹⁶⁵Ho(⁵⁶Fe, X), E=462 MeV; ²⁰⁹Bi(¹⁴N, X), E=99 MeV; ²⁰⁸Pb(¹⁶O, X), E=80-102 MeV; ¹³⁹La(⁸⁶Kr, X), E=505-710 MeV; ¹⁶⁶Er(⁸⁶Kr, X), E=705 MeV; ¹⁹⁷Au(⁵⁶Fe, X), E ≤ 538 MeV; ¹⁹⁷Au(⁶³Cu, X), E=365, 443, 605 MeV; ⁶³Cu(¹⁹⁷Au, X), E=1400 MeV; ²⁰⁸Pb(⁵⁶Fe, X), E=340 MeV; ²⁰⁹Bi(⁵⁶Fe, X), E=385, 480 MeV; ²³²Th(⁴⁰Ar, X), E=297, 388 MeV; ²³⁸U(⁴⁰Ar, X), E ≤ 288 MeV; ²³⁸U(⁵⁶Fe, X), E=538 MeV; ⁵⁶Fe(²³⁸U, X), E=1809 MeV; ²³⁸U(⁸⁶Kr, X), E ≤ 605 MeV; ¹⁹⁷Au(¹²⁹Xe, X), E ≤ 761 MeV; ¹⁹⁷Au(¹³²Xe, X), E=890 MeV; ²³⁸U(⁹²Mo, X), E=1350 MeV; ²⁰⁹Bi(¹³⁶Xe, X), E=940-1420 MeV; ²³⁸U(¹³²Xe, X), E ≤ 1150 MeV; ²³⁸U(²³⁸U, X), E=1766, 1785 MeV; calculated reaction, quasielastic σ; deduced deep inelastic, quasielastic process separation, instability role.

doi: 10.1016/0375-9474(85)90170-8
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1985BR17      Phys.Rev. C32, 1438 (1985)

U.Brosa

Sawtooth Curve of Neutron Multiplicity

RADIOACTIVITY ²⁵²Cf(SF); calculated fission fragment yield, average neutron multiplicity vs fragment mass; deduced Whetstone fission model validity.

NUCLEAR REACTIONS ²³⁸U(γ, F), E=12, 30 MeV bremsstrahlung; calculated average neutron multiplicity vs fission fragment mass. ¹⁶⁵Ho(⁵⁶Fe, X), E=476 MeV; calculated average neutron multiplicity vs fragment Z; deduced Whetstone model validity.

doi: 10.1103/PhysRevC.32.1438
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1984BR11      J.Phys.(London) G10, 933 (1984)

U.Brosa, S.Grossmann

Random Neck Rupture in Deep-Inelastic Collisions

NUCLEAR REACTIONS ²³⁸U(²³⁸U, X), E=1766 MeV; ¹⁵⁴Sm(¹⁵⁴Sm, X), E=970 MeV; ¹⁴⁴Sm(¹⁴⁴Sm, X), E=1000 MeV; calculated fragment charge variance vs energy loss. ²⁰⁹Bi(¹³⁶Xe, X), E=940, 1130 MeV; calculated fragment drift vs variance, maximum fragment charge variance. ¹⁶⁶Er(⁸⁶Kr, X), E=515, 703.5 MeV; ¹³⁹La(⁸⁶Kr, X), E=505, 610, 710 MeV; calculated maximum charge variance. ¹⁰⁰Mo(⁴⁰Ar, X), ⁹²Mo(³⁶Ar, X), E=270 MeV; calculated maximum fragment mass variance.

doi: 10.1088/0305-4616/10/7/010
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1984GR24      Z.Phys. A319, 327 (1984)

S.Grossmann, U.Brosa

Ar + Mo. Giant Fluctuations but Small Drift

NUCLEAR REACTIONS ⁹²Mo(³⁶Ar, X), ¹⁰⁰Mo(⁴⁰Ar, X), E=270 MeV; analyzed data; calculated neutron multiplicity vs fragment mass; deduced random neck rupture model validity.

doi: 10.1007/BF01412547
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1983BR06      Z.Phys. A310, 177 (1983)

U.Brosa, S.Grossmann

In the Exit Channel of Nuclear Fission

NUCLEAR REACTIONS, ICPND ²⁰⁹Bi(α, F), E=40-120 MeV; ²⁰⁴Pb(α, F), E=50 MeV; ¹⁹⁶Pt(¹²C, α), E=65, 80 MeV; ¹⁹²Os(¹⁶O, F), E=93, 105, 106, 119 MeV; ¹⁹⁷Au(α, F), E=60-120 MeV; ¹⁸²W(¹⁶O, F), E=102-165 MeV; ¹⁸²W(α, F), E=100 MeV; ¹⁷⁰Er(¹⁶O, F), E=120 MeV; ¹⁷⁴Yb(¹²C, F), E=120-125 MeV; ¹⁵⁹Tb(¹²C, F), E=125 MeV; ¹⁴¹Pr(¹⁶O, F), E=166 MeV; analyzed fission fragment total kinetic energy, mass yield distribution data. ²¹³At, ²⁰⁸Po, ²⁰¹Tl, ¹⁹⁸Pb, ¹⁸⁶Os, ¹⁷¹Lu, ¹⁵⁷Ho deduced fission characteristics.

doi: 10.1007/BF01415223
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1983BR15      Phys.Lett. 126B, 425 (1983)

U.Brosa, S.Grossmann

Droplet Fission: A performance of surface tension

NUCLEAR STRUCTURE ¹⁷¹Lu, ²¹³At; calculated potential energy surfaces vs fissility; deduced droplet fission characteristics. Long liquid jet instability.

doi: 10.1016/0370-2693(83)90355-6
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1983WE04      Z.Phys. A312, 261 (1983)

W.Westmeier, U.Brosa

Quasi-Elastic Reaction Cross Sections

NUCLEAR REACTIONS, ICPND ¹³²Xe(⁵⁶Fe, X), E=600, 660, 752, 940 MeV; ¹⁸¹Ta(¹⁶O, X), E=83, 90, 96 MeV; ¹⁶⁵Ho(⁵⁶Fe, X), E=462 MeV; ²³⁸U(²³⁸U, X), E=1766 MeV; calculated quasielastic σ. Deep inelastic, quasielastic separation hypothesis.

doi: 10.1007/BF01412171
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1981BR18      Phys.Lett. 105B, 22 (1981)

U.Brosa, W.Krone

Fast Neutrons in a Wide Angular Range

NUCLEAR REACTIONS ¹⁵⁸Gd(¹²C, xn), E=150 MeV; calculated σ(θ, En), fast neutrons. Fermi jet theory.

doi: 10.1016/0370-2693(81)90031-9
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1980BR29      Z.Phys. A298, 91 (1980)

U.Brosa, D.H.E.Gross

How and Why to Measure the Overlap of Nuclei in Heavy-Ion Collisions

NUCLEAR REACTIONS ²⁰⁹Bi(⁵⁶Fe, X), E=465 MeV; ¹⁹⁷Au(¹³²Xe, X), E=890 MeV; ¹¹⁰Pd(²⁰⁸Pb, X), E=1180 MeV; calculated neutron, proton break through, tunnelling distances, mean separation energies; deduced plausibility of hard friction model. Peripheral collisions, neutron-rich mass exchange.

doi: 10.1007/BF01554048
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1980BR30      Z.Phys. A298, 77 (1980)

U.Brosa

Accurate Solution of the Fokker Planck Equation and its Application to the U + U Reaction

NUCLEAR REACTIONS ²³⁸U(²³⁸U, X), E=7.42 MeV/nucleon; fragment mass variance, time evolution of probability density. Fokker Planck equation.

doi: 10.1007/BF01416031
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