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NSR database version of April 26, 2024.

Search: Author = K.Poppensieker

Found 19 matches.

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1989HO12      Z.Phys. A333, 107 (1989)

S.Hofmann, P.Armbruster, G.Berthes, T.Faestermann, A.Gillitzer, F.P.Hessberger, W.Kurcewicz, G.Munzenberg, K.Poppensieker, H.J.Schott, I.Zychor

The New Nuclei ¹⁶²Os and ¹⁵⁶Ta and the N = 84 Alpha Emitting Isomers

RADIOACTIVITY ¹⁶²Os, ^158,158mW(α); measured Eα, T_1/2. ^155mLu(α); measured Eα. ¹⁵⁶Ta(β⁺); measured T_1/2 lower limit. Sources produced in ¹⁰²Pd, ¹⁰⁶Cd(⁵⁸Ni, X) reactions.

NUCLEAR REACTIONS ¹⁰²Pd(⁵⁸Ni, 3np), E not given; measured residual production σ.

1989MU09      Z.Phys. A333, 163 (1989)

G.Munzenberg, P.Armbruster, S.Hofmann, F.P.Hessberger, H.Folger, J.G.Keller, V.Ninov, K.Poppensieker, A.B.Quint, W.Reisdorf, K.-H.Schmidt, J.R.H.Schneider, H.-J.Schott, K.Summerer, I.Zychor, M.E.Leino, D.Ackermann, U.Gollerthan, E.Hanelt, W.Morawek, D.Vermeulen, Y.Fujita, T.Schwab

Element 107

NUCLEAR REACTIONS ²⁰⁹Bi(⁵⁴Cr, xn), E=4.87-5.07 MeV/nucleon; measured α-spectra; deduced evidence for ^261,262,262mBh, formation σ, reaction σ(E).

RADIOACTIVITY ^261,262,262mBh(α) [from ²⁰⁹Bi(⁵⁴Cr, xn), E=4.87-5.07 MeV/nucleon]; measured α-spectra, αα-correlations, T_1/2; deduced no SF-decay evidence.

1988MU15      Z.Phys. A330, 435 (1988)

G.Munzenberg, S.Hofmann, F.P.Hessberger, H.Folger, V.Ninov, K.Poppensieker, A.B.Quint, W.Reisdorf, H.-J.Schott, K.Summerer, P.Armbruster, M.E.Leino, D.Ackermann, U.Gollerthan, E.Hanelt, W.Morawek, Y.Fujita, T.Schwab, A.Turler

New Results on Element 109

NUCLEAR REACTIONS ²⁰⁹Bi(⁵⁶Fe, X), E=5.17 MeV/nucleon; measured α(evaporation residue)(θ). ²⁶⁶Mt deduced T_1/2, decay features.

1987MU15      Z.Phys. A328, 49 (1987)

G.Munzenberg, P.Armbruster, G.Berthes, H.Folger, F.P.Hessberger, S.Hofmann, J.Keller, K.Poppensieker, A.B.Quint, W.Reisdorf, K.-H.Schmidt, H.-J.Schott, K.Summerer, I.Zychor, M.E.Leino, R.Hingmann, U.Gollerthan, E.Hanelt

Observation of the Isotopes ²⁶⁴108 and ²⁶⁵108

COMPILATION ^{237,238,239,240,241,242,243,244,245,246}Pu, ^{240,241,242,243,244,245,246,247,248,249,250}Cm, ^{242,243,244,245,246,248,249,250,251,252,253,254}Cf; compiled experimental, theoretical mass differences. ^{245,246,247,248,249,250,251,252,254,255,256,257}Fm, ^{251,252,253,254,255,256,257,259}No, ²⁵⁵Rf, ²⁵⁶Rf, ²⁵⁷Rf, ²⁵⁹Rf, ²⁶¹Rf, ²⁵⁹Sg, ²⁶⁰Sg, ²⁶¹Sg, ²⁶³Sg, ²⁶⁵Hs; compiled partial α-decay T_1/2, Q(α), experimental, theoretical mass differences.

RADIOACTIVITY ²⁶⁴Hs, ²⁶⁵Hs(α) [from ^207,208Pb(⁵⁸Fe, n), E=5.04 MeV/nucleon]; measured Eα, Iα. ²⁶⁵Hs deduced α-decay T_1/2, energy. ²⁶⁴Hs deduced α-decay T_1/2.

NUCLEAR REACTIONS ^207,208Pb(⁵⁸Fe, n), E=5.04 MeV/nucleon; measured Eα, Iα; deduced evidence for ²⁶⁴Hs, ²⁶⁵Hs.

1986HE28      J.Less-Common Met. 122, 445 (1986)

F.P.Hessberger, G.Munzenberg, S.Hofmann, P.Armbruster, Y.K.Agarwal, W.Reisdorf, K.Poppensieker, K.-H.Schmidt, J.R.H.Schneider, W.F.W.Schneider, H.J.Schott, C.-C.Sahm, D.Vermeulen, B.Thuma

Experiments on the Synthesis of Neutron-Deficient Isotopes with Atomic Numbers in the Region from Z = 102 to Z = 105

RADIOACTIVITY ^258,257Db, ^256,255Rf, ^254,253Lr(α) [from ^206,208Pb(⁴⁸Ca, xn), E ≈ 15-30 MeV/nucleon; ^207,208Pb, ²⁰⁹Bi(⁵⁰Ti, xn), E=20-35 MeV/nucleon]; measured Eα, T_1/2. ^256,255Rf(SF); measured total kinetic energy release.

NUCLEAR REACTIONS ^206,208Pb(⁴⁸Ca, xn), E ≈ 15-30 MeV/nucleon; ^207,208Pb, ²⁰⁹Bi(⁵⁰Ti, xn)²⁵⁸Db/²⁵⁷Db/²⁵⁵Rf/²⁵⁶Rf/²⁵⁴Lr/²⁵³Lr, E ≈ 20-35 MeV/nucleon; measured evaporation residue, Z=104, 105, Lr isotope production σ(E).

doi: 10.1016/0022-5088(86)90440-6
Citations: PlumX Metrics

1986MU10      Z.Phys. A324, 489 (1986)

G.Munzenberg, P.Armbruster, G.Berthes, H.Folger, F.P.Hessberger, S.Hofmann, K.Poppensieker, W.Reisdorf, B.Quint, K.-H.Schmidt, H.-J.Schott, K.Summerer, I.Zychor, M.E.Leino, U.Gollerthan, E.Hanelt

Evidence for ²⁶⁴108, the Heaviest Known Even-Even Isotope

RADIOACTIVITY ²⁶⁴Hs(α) [from ²⁰⁷Pb(⁵⁸Fe, X), E=5.04 MeV/nucleon]; measured Eα, Iα; deduced Qα, T_1/2, mass excess.

NUCLEAR REACTIONS ²⁰⁷Pb(⁵⁸Fe, X)²⁶⁴Hs, E=5.04 MeV/nucleon; measured Eα, Iα following fusion evaporation residue decay; deduced evidence for ²⁶⁴Hs production σ lower limit.

1985AR02      Phys.Rev.Lett. 54, 406 (1985)

P.Armbruster, Y.K.Agarwal, W.Bruchle, M.Brugger, J.P.Dufour, H.Gaggeler, F.P.Hessberger, S.Hofmann, P.Lemmertz, G.Munzenberg, K.Poppensieker, W.Reisdorf, M.Schadel, K.-H.Schmidt, J.H.R.Schneider, W.F.W.Schneider, K.Summerer, D.Vermeulen, G.Wirth, A.Ghiorso, K.E.Gregorich, D.Lee, M.Leino, K.J.Moody, G.T.Seaborg, R.B.Welch, P.Wilmarth, S.Yashita, C.Frink, N.Greulich, G.Herrmann, U.Hickmann, N.Hildebrand, J.V.Kratz, N.Trautmann, M.M.Fowler, D.C.Hoffman, W.R.Daniels, H.R.von Gunten, H.Dornhofer

Attempts to Produce Superheavy Elements by Fusion of ⁴⁸Ca with ²⁴⁸Cm in the Bombarding Energy Range of 4.5-5.2 MeV/u

NUCLEAR REACTIONS ²⁴⁸Cm(⁴⁸Ca, X), E=4.5-5.2 MeV/nucleon; measured superheavy production σ upper limits vs T_1/2. Different separation techniques.

doi: 10.1103/PhysRevLett.54.406
Citations: PlumX Metrics

1985HE22      Z.Phys. A322, 557 (1985)

F.P.Hessberger, G.Munzenberg, S.Hofmann, Y.K.Agarwal, K.Poppensieker, W.Reisdorf, K.-H.Schmidt, J.R.H.Schneider, W.F.W.Schneider, H.J.Schott, P.Armbruster, B.Thuma, C.-C.Sahm, D.Vermeulen

The New Isotopes ²⁵⁸105, ²⁵⁷105, ²⁵⁴Lr and ²⁵³Lr

RADIOACTIVITY ²⁵⁸Db, ²⁵⁷Db, ^253,254Lr(α) [from ²⁰⁹Bi(⁵⁰Ti, X), E=4.65-4.95 MeV/nucleon]; measured Eα, Iα, T_1/2. ²⁵⁸Rf(SF) [from ²⁵⁸Db(EC-decay)]; measured T_1/2, fission fragment total kinetic energy.

NUCLEAR REACTIONS ²⁰⁹Bi(⁵⁰Ti, X), E=4.65-4.95 MeV/nucleon; measured Eα, Iα, evaporation residue σ(E) for one-, two-neutron emission; deduced evidence for ²⁵⁸Db, ²⁵⁷Db, ^253,254Lr.

1985HO29      Nucl.Phys. A447, 335c (1985)

S.Hofmann, P.Armbruster, G.Munzenberg, W.Reisdorf, K.-H.Schmidt, H.G.Burkhard, F.P.Hessberger, H.-J.Schott, Y.K.Agarwal, G.Berthes, U.Gollerthan, H.Folger, R.Hingmann, J.G.Keller, M.E.Leino, P.Lemmertz, M.Montoya, K.Poppensieker, B.Quint, I.Zychor

The Influence of the Surprising Decay Properties of Element 108 on Search Experiments for New Elements

RADIOACTIVITY ²⁶⁰Sg(α) [from ²⁰⁸Pb(⁵⁴Cr, 2n), E=4.92 MeV/nucleon]; measured T_1/2; deduced SF(T_1/2) limit, branching ratio. ²⁵⁶Rf(SF) [from ²⁶⁰Sg(α-decay)]; measured T_1/2. ²⁶⁰Sg, ²⁵⁶Rf deduced mass excess.

doi: 10.1016/0375-9474(86)90615-9
Citations: PlumX Metrics

1985MU11      Z.Phys. A322, 227 (1985)

G.Munzenberg, S.Hofmann, H.Folger, F.P.Hessberger, J.Keller, K.Poppensieker, B.Quint, W.Reisdorf, K.-H.Schmidt, H.J.Schott, P.Armbruster, M.E.Leino, R.Hingmann

The Isotopes of ²⁵⁹106, ²⁶⁰106, and ²⁶¹106

NUCLEAR REACTIONS ²⁰⁸Pb(⁵⁴Cr, n), (⁵⁴Cr, 2n), E=257, 263, 268 MeV; ²⁰⁷Pb(⁵⁴Cr, n), (⁵⁴Cr, 2n), E=262 MeV; measured Eα, Iα, αα-correlation; deduced evidence for ²⁵⁹Sg, ²⁶⁰Sg, ²⁶¹Sg.

RADIOACTIVITY ²⁶¹Sg(α) [from ²⁰⁸Pb(⁵⁴Cr, n), E=257-268 MeV]; measured Eα, Iα, T_1/2; deduced α-branching ratio. ²⁶⁰Sg(α) [from ^207,208Pb(⁵⁴Cr, xn), E=257-268 MeV]; measured Eα, Iα; deduced α-branching ratio, shell effects. ²⁵⁶Rf(SF) [from ²⁶⁰Sg(α-decay)]; measured T_1/2. ²⁵⁹Sg(α) [from ²⁰⁷Pb(⁵⁴Cr, 2n), E=262 MeV]; measured Eα, Iα, T_1/2.

1984MU07      Z.Phys. A315, 145 (1984)

G.Munzenberg, W.Reisdorf, S.Hofmann, Y.K.Agarwal, F.P.Hessberger, K.Poppensieker, J.R.H.Schneider, W.F.W.Schneider, K.-H.Schmidt, H.-J.Schott, P.Armbruster, C.-C.Sahm, D.Vermeulen

Evidence for Element 109 from One Correlated Decay Sequence following the Fusion of ⁵⁸Fe with ²⁰⁹Bi

RADIOACTIVITY ²⁶⁶Mt(SF) [from ²⁰⁹Bi(⁵⁸Fe, X), E=5.15 MeV/nucleon]; measured Eα, Iα, αα-coin, SF-decay.

NUCLEAR REACTIONS ²⁰⁹Bi(⁵⁸Fe, X), E=4.95, 5.05, 5.15 MeV/nucleon; measured σ(fragment) vs mass, Eα, Iα, SF-decay; deduced evidence for compound nucleus ²⁶⁶Mt.

1984MU17      Z.Phys. A317, 235 (1984)

G.Munzenberg, P.Armbruster, H.Folger, F.P.Hessberger, S.Hofmann, J.Keller, K.Poppensieker, W.Reisdorf, K.-H.Schmidt, H.-J.Schott, M.E.Leino, R.Hingmann

The Identification of Element 108

RADIOACTIVITY ²⁶⁵Hs(α) [from ²⁰⁸Pb(⁵⁶Fe, n)]; measured T_1/2, Eα. Correlated decay study of ²⁶¹Sg, ²⁵⁷Rf, surface barrier detectors.

NUCLEAR REACTIONS ²⁰⁸Pb(⁵⁶Fe, n), E=5.02 MeV/nucleon; measured Eα; deduced evidence for ²⁶⁵Hs, production σ. Correlated decay study of ²⁶¹Sg, ²⁵⁷Rf, surface barrier detectors.

1982MU15      Z.Phys. A309, 89 (1982)

G.Munzenberg, P.Armbruster, F.P.Hessberger, S.Hofmann, K.Poppensieker, W.Reisdorf, J.H.R.Schneider, W.F.W.Schneider, K.-H.Schmidt, C.-C.Sahm, D.Vermeulen

Observation of One Correlated α-Decay in the Reaction ⁵⁸Fe on ²⁰⁹Bi → ²⁶⁷109

RADIOACTIVITY ²⁶⁶Mt [from ²⁰⁹Bi(⁵⁸Fe, n), E=4.95-5.15 MeV/nucleon]; measured Eα, time correlated α-spectra; deduced α-decay chain correlation followed by ²⁵⁸Rf fission. Evaporation residue implantation technique.

NUCLEAR REACTIONS ²⁰⁹Bi(⁵⁸Fe, n), E=4.95-5.15 MeV/nucleon; measured Eα, time correlated α-spectra; deduced evidence for ²⁶⁶Mt. Evaporation residue implantation technique.

1978LO04      Z.Phys. A286, 99 (1978)

H.Lohner, H.Eickhoff, D.Frekers, G.Gaul, K.Poppensieker, R.Santo, A.G.Drentje, L.W.Put

Investigation of Large Angle Structure in α-Scattering from Calcium Isotopes between E = 36-61 MeV

NUCLEAR REACTIONS ⁴⁰Ca(α, α), E=36.2, 39.6, 42.6, 49.5, 61.0 MeV; ⁴⁴Ca(α, α), E=36.2, 42.6, 49.5, 61.0 MeV; measured σ(θ).

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetF0639.

1977PO08      Z.Phys. A282, 359 (1977)

K.Poppensieker, E.Huster, L.Wallek

A Precision Measurement of the Longitudinal Polarization of ²¹⁰Bi (RaE) β-Particles at 900 keV

RADIOACTIVITY ²¹⁰Bi; measured longitudinal polarization.

doi: 10.1007/BF01434289
Citations: PlumX Metrics

1976FR08      Z.Phys. A276, 317 (1976)

D.Frekers, H.Eickhoff, H.Lohner, K.Poppensieker, R.Santo, C.Wiezorek

Resonances in Low Energy ⁴⁰Ca(α, α)-Scattering and Quasimolecular Band in ⁴⁴Ti

NUCLEAR REACTIONS ⁴⁰Ca(α, α), E=7.035-7.405 MeV; measured σ(E, θ). ⁴⁴Ti deduced resonances, J, π, Γ.

doi: 10.1007/BF01412110
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetF0551.

1976FR25      Z.Phys. A 276, 317 (1976)

D.Frekers, H.Eickhoff, H.Lohner, K.Poppensieker, R.Santo, C.Wiezorek

Resonances in low energy ⁴⁰Ca(α, α)-scattering and quasimolecular band in ⁴⁴Ti

NUCLEAR REACTIONS ⁴⁰Ca(α, α), ⁴⁴Ca(α, α), E=7-7.4 MeV; measured products, ⁴⁰Ca, ⁴⁴Ca; deduced σ(θ). Data were imported from EXFOR entry F0551.

doi: 10.1007/BF01412110
Citations: PlumX Metrics

1975EI04      Nucl.Phys. A252, 333 (1975)

H.Eickhoff, D.Frekers, H.Lohner, K.Poppensieker, R.Santo, G.Gaul, C.Mayer-Boricke, P.Turek

Large Angle Scattering of 100 MeV α-Particles from ^40,44,48Ca

NUCLEAR REACTIONS ^40,44,48Ca(α, α), E=100 MeV; measured σ(E, θ); deduced optical model, folding model parameters. Natural, enriched targets.

doi: 10.1016/0375-9474(75)90503-5
Citations: PlumX Metrics

1972PO15      Z.Phys. 255, 405 (1972)

K.P.Poppensieker, A.Quentmeier, L.Wallek

Relativmessung der longitudinalen β-Polarisation des ¹⁴¹Ce

RADIOACTIVITY ¹⁴¹Ce; measured β-longitudinal polarization.

doi: 10.1007/BF01392475
Citations: PlumX Metrics

Note: The following list of authors and aliases matches the search parameter K.Poppensieker: , K.P.POPPENSIEKER