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NSR database version of May 20, 2024.

Search: Author = J.P.Theobald

Found 38 matches.

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1997AL09      Phys.Rev.Lett. 78, 2313 (1997)

G.D.Alkhazov, M.N.Andronenko, A.V.Dobrovolsky, P.Egelhof, G.E.Gavrilov, H.Geissel, H.Irnich, A.V.Khanzadeev, G.A.Korolev, A.A.Lobodenko, G.Munzenberg, M.Mutterer, S.R.Neumaier, F.Nickel, W.Schwab, D.M.Seliverstov, T.Suzuki, J.P.Theobald, N.A.Timofeev, A.A.Vorobyov, V.I.Yatsoura

Nuclear Matter Distributions in 6He and 8He from Small Angle p-He Scattering in Inverse Kinematics at Intermediate Energy

NUCLEAR REACTIONS 1H(α, α), (6He, 6He), (8He, 8He), E=674-699 MeV/nucleon; measured absolute differential σ; deduced model parameters. 6,8He deduced nuclear matter radii.

doi: 10.1103/PhysRevLett.78.2313
Citations: PlumX Metrics


1996HO26      Z.Phys. A356, 299 (1996)

A.Hotzel, P.Thirolf, Ch.Ender, D.Schwalm, M.Mutterer, P.Singer, M.Klemens, J.P.Theobald, M.Hesse, F.Gonnenwein, H.van der Ploeg

High-Energy Gamma-Rays Accompanying the Spontaneous Fission of 252Cf

RADIOACTIVITY 252Cf(SF); measured fragment total kinetic energy vs mass, Eγ, Iγ; deduced high energy γ production mechanism. Position sensitive double ionization chamber plus 4π γ-array.

doi: 10.1007/s002180050183
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22757.


1995NE04      Nucl.Phys. A583, 799c (1995)

S.Neumaier, G.D.Alkhazov, M.N.Andronenko, T.Beha, K.-H.Behr, A.Brunle, K.Burkard, A.V.Dobrovolsky, P.Egelhof, C.Fischer, G.E.Gavrilov, H.Geissel, V.I.Iatsoura, H.Irnich, A.V.Khanzadeev, G.A.Korolev, A.A.Lobodenko, P.Lorenzen, G.Munzenberg, M.Mutterer, F.Nickel, W.Schwab, D.M.Seliverstov, P.Singer, T.Suzuki, J.P.Theobald, N.A.Timofeev, A.A.Vorobyov

Study of the Nucleon Density Distribution of 6He and 8He by Proton Elastic Scattering in Inverse Kinematics

NUCLEAR REACTIONS 1H(α, α), E=699 MeV/nucleon; 1H(6He, 6He), E=717 MeV/nucleon; 1H(8He, 8He), E=674 MeV/nucleon; measured differential σ vs four momentum transfer. 8He deduced neutron skin evidence.

doi: 10.1016/0375-9474(94)00761-B
Citations: PlumX Metrics


1995SI21      Nucl.Phys. A594, 45 (1995)

P.Siegler, F.-J.Hambsch, S.Oberstedt, J.P.Theobald

Fission Modes in the Compound Nucleus 238Np

NUCLEAR REACTIONS 237Np(n, F), E=5.5 MeV; analyzed fission fragment total kinetic energy vs mass, dissymmetry distributions. 238Np deduced fission modes characteristics. Multi-model random neck-rupture model, potential energy calculations.

doi: 10.1016/0375-9474(95)00364-7
Citations: PlumX Metrics


1994OB01      Nucl.Phys. A573, 467 (1994)

S.Oberstedt, J.P.Theobald, H.Weigmann, J.A.Wartena, C.Burkholz

Limits on the Half Life of the Shape Isomer in 239U

NUCLEAR REACTIONS 238U(n, γ), E ≈ resonance; measured γγ(t) following capture. 239U deduced shape isomer T1/2 lower limit, fission barrier parametrization related features.

doi: 10.1016/0375-9474(94)90353-0
Citations: PlumX Metrics


1994OB02      Nucl.Phys. A578, 31 (1994)

S.Oberstedt, J.P.Theobald, H.Weigmann, J.A.Wartena, C.Burkholz

Intermediate Structure and the Shape Isomer in 233Th

NUCLEAR REACTIONS 232Th(n, γ), E=0.05-4.2 keV; measured γγ(t). 233Th deduced shape isomer T1/2 range, decay features, resonances admixture, coupling width.

doi: 10.1016/0375-9474(94)90967-9
Citations: PlumX Metrics


1994SC30      Nucl.Phys. A577, 674 (1994)

W.Schwab, H.-G.Clerc, M.Mutterer, J.P.Theobald, H.Faust

Cold Fission of 233U(n(th), f)

NUCLEAR REACTIONS 233U(n, F), E=thermal; measured light fission fragment nuclide yields at high kinetic energies; deduced yields at constant total excitation energy, ground-state yields, influence of level densities and scission barrier pentrabilities.

doi: 10.1016/0375-9474(94)90939-3
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22300.


1994TH07      Yad.Fiz. 57, No 7, 1186 (1994); Phys.Atomic Nuclei 57, 1120 (1994)

J.P.Theobald

Shape Isomerism of Light Actinide Nuclei

NUCLEAR STRUCTURE 238Np, 235,236,237U, 231,233Th, 232Pa; compiled, reviewed subthreshold neutron induced fission σ data.

NUCLEAR REACTIONS 238U(n, F), E not given; measured γγ(t). 232Th(n, F), E ≤ 4 keV; measured delayed γ yield vs E.


1993RO07      Z.Phys. A345, 89 (1993)

Ch.Rosel, H.Hanscheid, J.Hartfiel, R.von Mutius, J.F.M.d'Achard van Enschut, P.David, H.Janszen, T.Johansson, J.Konijn, T.Krogulski, C.T.A.M.de Laat, H.Paganetti, C.Petitjean, S.M.Polikanov, H.W.Reist, F.Risse, L.A.Schaller, L.Schellenberg, W.Schrieder, A.K.Sinha, A.Taal, J.P.Theobald, G.Tibell, N.Trautmann

The Study of Prompt and Delayed Muon Induced Fission III. The Ratios of Prompt to Delayed Fission Yields

NUCLEAR REACTIONS 233,234,235,236,238U, 237Np, 242,244Pu(μ-, F), E not given; measured prompt to delayed fission yields ratios, absolute probabilities; deduced fission probabilities per muon capture.


1989HA04      Nucl.Phys. A491, 56 (1989)

F.-J.Hambsch, H.-H.Knitter, C.Budtz-Jorgensen, J.P.Theobald

Fission Mode Fluctuations in the Resonances of 235U(n, F)

NUCLEAR REACTIONS 235U(n, F), E=0.006-130 eV; measured fission fragment yield vs mass, total kinetic energy vs E(n); deduced correlations with other fission properties. 236U deduced level J, π, Γ(F).

doi: 10.1016/0375-9474(89)90206-6
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22120.


1989HE15      Nucl.Instrum.Methods Phys.Res. A278, 452 (1989)

P.Heeg, J.Pannicke, M.Mutterer, P.Schall, J.P.Theobald, K.Weingaertner, K.F.Hoffmann, K.Scheele, P.Zoller, G.Barreau, B.Leroux, F.Gonnenwein

The Double-Torus Ionization Chamber DIOGENES for the Investigation of Charged Particle Associated Nuclear Fission

NUCLEAR REACTIONS 235U, 239Pu(n, F), E=thermal; measured fission (fragment)(fragment)(θ), (fragment)α(θ). Toroidal angular position sensitive ionization chamber.

RADIOACTIVITY 252Cf(SF); measured fission (fragment)(fragment)(θ), (fragment)α(θ). Toroidal angular position sensitive ionization chamber.

doi: 10.1016/0168-9002(89)90865-6
Citations: PlumX Metrics


1988DA17      Z.Phys. A330, 397 (1988)

P.David, H.Hanscheid, J.Hartfiel, H.Janszen, T.Mayer-Kuckuk, R.von Mutius, F.Risse, Ch.F.G.Rosel, W.Schrieder, C.Petitjean, H.W.Reist, S.M.Polikanov, J.Konijn, C.T.A.M.de Laat, A.Taal, T.Krogulski, T.Johansson, G.Tibell, J.F.M.d'Achard van Enschut, J.P.Theobald, N.Trautmann, C.Gugler, L.A.Schaller, L.Schellenberg

The Study of Prompt and Delayed Muon Induced Fission II. Mean Life Times of Negative Muons Bound to 237Np, 242Pu and 244Pu

NUCLEAR REACTIONS 237Np, 242,244Pu(μ-, F), E at rest; measured fission (fragment)(fragment)μ-, (fragment)(fragment)-coin; deduced muon capture rates.


1988QU05      Nucl.Phys. A487, 1 (1988)

U.Quade, K.Rudolph, S.Skorka, P.Armbruster, H.-G.Clerc, W.Lang, M.Mutterer, C.Schmitt, J.P.Theobald, F.Gonnenwein, J.Pannicke, H.Schrader, G.Siegert, D.Engelhardt

Nuclide Yields of Light Fission Products from Thermal-Neutron Induced Fission of 233U at Differenct Kinetic Energies

NUCLEAR REACTIONS, Fission 233U(n, F), E=thermal; measured fission fragment mass, nuclear charge distributions vs kinetic energy; deduced independent, fractional independent yields, odd-even effects, average kinetic energies of the elements, reaction Q.

doi: 10.1016/0375-9474(88)90127-3
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22130.


1987KO11      Phys.Rev. C35, 1646 (1987)

R.Kohler, J.A.Wartena, H.Weigmann, L.Mewissen, F.Poortmans, J.P.Theobald, S.Raman

Nuclear Structure of 208Pb from 207Pb + n Resonances

NUCLEAR REACTIONS 207Pb(n, n), (n, γ), E=0.02-20 MeV; measured elastic scattering, capture, total σ(E). 208Pb deduced levels, J, π, resonance parameters, level density, B(M1). Enriched target.

doi: 10.1103/PhysRevC.35.1646
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22052.


1987KO17      Phys.Lett. 191B, 249 (1987)

P.Koczon, M.Mutterer, J.P.Theobald, P.Geltenbort, F.Gonnenwein, A.Oed, M.S.Moore

Cold and ' Hot ' Fragmentation in Thermal Neutron Induced Fission of 245Cm

NUCLEAR REACTIONS 245Cm(n, F), E=thermal; measured fission fragment energy, mass distributions; deduced fragmentation mechanism. Tof spectrometer.

doi: 10.1016/0370-2693(87)90249-8
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23587.


1987SC13      Phys.Lett. 191B, 339 (1987)

P.Schall, P.Heeg, M.Mutterer, J.P.Theobald

On Symmetric Tripartition in the Spontaneous Fission of 252Cf

RADIOACTIVITY 252Cf(SF); measured ternary fission fragment σ(θ), σ(E). Toroidal gridded ionization chamber.

doi: 10.1016/0370-2693(87)90619-8
Citations: PlumX Metrics


1986CL02      Nucl.Phys. A452, 277 (1986)

H.-G.Clerc, W.Lang, M.Mutterer, C.Schmitt, J.P.Theobald, U.Quade, K.Rudolph, P.Armbruster, F.Gonnenwein, H.Schrader, D.Engelhardt

Cold Fragmentation in Thermal-Neutron-Induced Fission of 233U and 235U

NUCLEAR REACTIONS 233,235U(n, F), E=thermal; measured light fission product mass yields at high kinetic energies; deduced influence of nucleon pairing, reaction Q.

doi: 10.1016/0375-9474(86)90310-6
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22030.


1986DO08      Radiat.Eff. 93, 61 (1986)

T.P.Doan, G.Barreau, A.Sicre, F.Caitucoli, B.Leroux, J.P.Theobald, M.Mutterer, P.Koczon

Light Nuclei from the Thermal Neutron Induced Fission of 235U

NUCLEAR REACTIONS 235U(n, F)6He/10He/9Li/9Be/10Be/12Be/12B/15B/15C/18O/18C/21O/21Ne, E=thermal; measured light residuals yields following fission.

doi: 10.1080/00337578608207430
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23715.


1986KO14      Radiat.Eff. 93, 49 (1986)

P.Koczon, M.Mutterer, J.P.Theobald, M.S.Moore, F.Goennenwein, P.Geltenbort, A.Oed, J.Pannicke

Mass and Energy Distribution of Fragments from the 245Cm(n(th), f) Reaction

NUCLEAR REACTIONS 245Cm(n, F), E=thermal; measured fission fragment mass yield vs fragment kinetic energy, long range Eα, σ(θα).

doi: 10.1080/00337578608207427
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23587.


1986PA09      Radiat.Eff. 93, 45 (1986)

J.Pannicke, M.Mutterer, J.P.Theobald, P.Heeg, K.Weingaertner, G.Barreau, B.Leroux, F.Goennenwein

Long Range Alpha Particle Associated Neutron Induced Fission of U-235

NUCLEAR REACTIONS 235U(n, F), E=thermal; measured ternary fission (fragment)(fragment)(θ), (fragment)(fragment)α-coin. 236U deduced equatorial, polar ternary fission characteristics.

doi: 10.1080/00337578608207426
Citations: PlumX Metrics


1984SC38      Nucl.Phys. A430, 21 (1984)

C.Schmitt, A.Guessous, J.P.Bocquet, H.-G.Clerc, R.Brissot, D.Engelhardt, H.R.Faust, F.Gonnenwein, M.Mutterer, H.Nifenecker, J.Pannicke, Ch.Ristori, J.P.Theobald

Fission Yields at Different Fission-Product Kinetic Energies for Thermal-Neutron-Induced Fission of 239Pu

NUCLEAR REACTIONS 239Pu(n, F), E=thermal; measured fission fragment mass, charge distribution; deduced fragment fractional yields, odd-even effects, isobar average kinetic energies.

doi: 10.1016/0375-9474(84)90191-X
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset21928.


1983SP03      Phys.Rev.Lett. 51, 1522 (1983)

W.Spreng, F.Azgui, H.Emling, E.Grosse, R.Kulessa, Ch.Michel, D.Schwalm, R.S.Simon, H.J.Wollersheim, M.Mutterer, J.P.Theobald, M.S.Moore, N.Trautmann, J.L.Egido, P.Ring

First Observation of Backbending in an Actinide Nucleus

NUCLEAR REACTIONS 242,244Pu(208Pb, 208Pb'), E=5.1, 5.3 MeV/nucleon; measured Coulomb excitation, Doppler shifted γ-spectra, Eγ. 242,244Pu deduced levels, J, π, yrast transitions, backbending, proton shell alignment effects. Microscopic calculations.

doi: 10.1103/PhysRevLett.51.1522
Citations: PlumX Metrics


1982JU02      Nucl.Phys. A386, 287 (1982)

C.R.Jungmann, H.Weigmann, L.Mewissen, F.Poortmans, E.Cornelis, J.P.Theobald

Resonance Structure of 32S + n from Transmission and Diffferential Elastic Scattering Experiments

NUCLEAR REACTIONS 32S(n, n), (n, X), E=0.18-2 MeV; measured σ(total), σ(θ) vs E. 33S deduced resonances, π, Γn, resonance parameters. Natural target.

doi: 10.1016/0375-9474(82)90114-2
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset21801.


1980LE10      Nucl.Phys. A342, 37 (1980)

H.-D.Lemke, B.Ziegler, M.Mutterer, J.P.Theobald, N.Carjan

Absolute Photofission Cross Section of 209Bi in the Energy Range from 40 to 65 MeV

NUCLEAR REACTIONS 209Bi(γ, F), E=40-65 MeV; measured σ; deduced total photoabsorption σ for compound nucleus formation. Statistical model.

doi: 10.1016/0375-9474(80)90505-9
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetM0587.


1979WA06      Nucl.Phys. A320, 433 (1979)

P.Wastyn, H.Genz, M.Mutterer, A.Richter, G.Schrieder, J.C.Van Staden, J.P.Theobald

Elastic Scattering of 40Ar on 40Ca at E(lab) = 191, 236 and 272 MeV

NUCLEAR REACTIONS 40Ca(40Ar, 40Ar), E=191, 236, 272 MeV; measured σ(θ, E); deduced interaction radius, total reaction σ. Fitted Fresnel, optical models to data. Compared with microscopically calculated potentials.

doi: 10.1016/0375-9474(79)90200-8
Citations: PlumX Metrics


1979WA21      Nucl.Phys. A332, 455 (1979)

P.Wastyn, H.Feldmeier, F.Beck, M.Dworzecka, H.Genz, M.Mutterer, A.Richter, G.Schrieder, J.P.Theobald

Strongly Damped Collisions in the 40Ar + 40Ca System

NUCLEAR REACTIONS 40Ca(40Ar, X), E=191, 236, 272 MeV; measured σ(E, fragment charge, θ).

doi: 10.1016/0375-9474(79)90013-7
Citations: PlumX Metrics


1978WA18      S.Afr.J.Phys. 1, 224 (1978)

P.Wastyn, H.Genz, M.Mutterer, A.Richter, G.Schrieder, J.C.van Staden, J.P.Theobald

Elastic Scattering of 40Ar on 40Ca at E(lab) = 191, 236 and 272 MeV

NUCLEAR REACTIONS 40Ca(40Ar, 40Ar), E=191, 236, 272 MeV; measured σ(θ); deduced optical model parameters. Fresnel, optical, microscopic models.


1973PO08      Nucl.Phys. A207, 342 (1973)

F.Poortmans, G.Rohr, J.P.Theobald, H.Weigmann, G.J.Vanpraet

Neutron Resonance Parameters of 242Pu

NUCLEAR REACTIONS 242Pu(n, n), 242Pu(n, γ), E=20-1300 eV; measured σ. 243Pu resonances deduced resonance parameters n-width, γ-width. Enriched target.

doi: 10.1016/0375-9474(73)90351-5
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20383.


1973TH10      J.Nucl.Energy 27, 435 (1973)

J.P.Theobald, J.A.Wartena, R.Werz, F.Poortmans

Neutron Multiplicity Measurement on Resolved Fission Resonances of 235U

NUCLEAR REACTIONS, Fission 235U(n, F), E=8-40 eV; measured nn-coin, nnn-coin. Deduced neutron multiplicity.

doi: 10.1016/0022-3107(73)90098-1
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23517.


1972TH01      Nucl.Phys. A181, 639 (1972)

J.P.Theobald, J.A.Wartena, H.Weigmann, F.Poortmans

Fission Components in 236U Neutron Resonances

NUCLEAR REACTIONS, Fission 236U(n, F), En=0.3 eV-1000 eV; measured σ(n, F). 237U resonances deduced F-width. Enriched target.

doi: 10.1016/0375-9474(72)90504-0
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20501.


1972WE09      Nucl.Phys. A187, 305 (1972)

H.Weigmann, J.P.Theobald

Evaluation of Fission Barrier Parameters from Near-Barrier Fission and Isomeric Half-Life Data

NUCLEAR STRUCTURE, Fission 234,235,236,237,238,239U, 237,238,239,240Np, 235,236,237,238,239,240,241,242,243,244,245Pu, 237,238,239,240,241,242,243,244Am, 241,242,243,244,245Cm, 246,247Cm, 244,245,246Bk; calculated fission barriers, T1/2.

doi: 10.1016/0375-9474(72)90578-7
Citations: PlumX Metrics


1971KO39      Z.Phys. 248, 355 (1971)

W.Kolar, J.P.Theobald, G.Lanzano

Fission of 237Np + n Through a Double Humped Fission Barrier

NUCLEAR REACTIONS, Fission 237Np(n, F), E=20-60 eV; measured σ(E). 238Np deduced resonance parameters.

doi: 10.1007/BF01400549
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20138.


1971TH18      Atomkernenergie 18, 229 (1971)

J.P.Theobald, H.Weigmann

Experimente zur unterschwelligen Kernspaltung und ihre Deutung


1970CA33      J.Nucl.Energy 24, 111 (1970)

M.G.Cao, E.Migneco, J.P.Theobald, M.Merla

Fission Cross Section Measurement on 233U

NUCLEAR REACTIONS 233U(n, F), E=0.018 eV-1.2 keV; measured σ(E).

doi: 10.1016/0022-3107(70)90057-2
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20003.


1970MI16      Lett.Nuovo Cim. 4, 1220 (1970)

E.Migneco, J.P.Theobald, S.de Jonge

Parity Assignments of Some 98Mo Resonances

NUCLEAR REACTIONS 98Mo(n, n), E approx 429, 612, 818 eV; measured σ(E). 99Mo resonances deduced π.

doi: 10.1007/BF02753705
Citations: PlumX Metrics


1968CA23      Phys.Lett. 27B, 409 (1968)

M.G.Cao, E.Migneco, J.P.Theobald

Autocorrelation Effects in the Neutron Induced Fission Cross Section of 235U

NUCLEAR REACTIONS, Fission 235U(n, F), E=0.006-3 keV; measured σ(E). 236U deduced resonance, autocorrelation, intermediate state, shape isomer. Reanalysis of data.

doi: 10.1016/0370-2693(68)90220-7
Citations: PlumX Metrics


1968CA31      J.Nucl.Energy 22, 211 (1968)

M.G.Cao, E.Migneco, J.P.Theobald, J.A.Wartena, J.Winter

Fission Cross-Section Measurement on 235U

NUCLEAR REACTIONS 235U(n, F), E=0.006-3 keV; measured fission products, En, In; deduced resonance parameters, σ.

doi: 10.1016/0022-3107(68)90009-9
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20129.


1968MI14      Nucl.Phys. A112, 603 (1968)

E.Migneco, J.P.Theobald

Resonance Grouping Structure in Neutron Induced Subthreshold Fission of 240Pu

NUCLEAR REACTIONS 240Pu(n, F), E=0.2 to 8 keV; measured σ(nf)(E). 241Pu resonances deduced F-width.

doi: 10.1016/0375-9474(68)90081-X
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20005.


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