Filters
Results 1 - 10 of 20
Results 1 - 10 of 20.
Search took: 0.036 seconds
| Sort by: date | relevance |
Seiler-Clark, G.
Gesellschaft fuer Schwerionenforschung m.b.H., Darmstadt (Germany, F.R.); Heidelberg Univ. (Germany, F.R.)1983
Gesellschaft fuer Schwerionenforschung m.b.H., Darmstadt (Germany, F.R.); Heidelberg Univ. (Germany, F.R.)1983
AbstractAbstract
[en] For the study of their magnetic moments yrast states in 158Dy and 164Dy were excited via the multiple-Coulomb excitation by a 4.7 MeV/u 208Pb beam. Hereby especially the question was of interest, how the one-particle effects in the nuclear structure in the region of the backbending anomaly in 158Dy take effects on the g-factors of the high spin states in this region. The particle-γ angular correlations perturbed in the transient magnetic field during the passing of the excited Dy ions through a thin magnetized iron foil were measured. By the selective position-sensitive detection of Dy recoil ions and Pb projectiles under forward angles it was possible to determine additionally to the g-factors in the backbending region also g-factors in the spin region I <= 8 in 158Dy and 164Dy by detection of the particle-γ correlations precessing in the static hyperfine field after implantation in iron. The static hyperfine field was at the 4+ state in 164Dy determined to B (Dy,Fe) = 245+-25 T. The g-factors were determined by comparison of the experimental results with calculations of the perturbed angular correlations by time-differential regarding of the population and de-excitation of the yrast states as well as by precession and hyperfine-relaxation effects during the flight of the Dy ions in the vacuum. (orig./HSI)
[de]
Zur Untersuchung ihrer magnetischen Momente wurden Yrastzustaende in 158Dy und 164Dy ueber die Mehrfachcoulombanregung mit einem 206Pb-Strahl von 4.7 MeV/u angeregt. Hierbei war insbesondere die Frage, inwiefern sich Einteilcheneffekte in der Kernstruktur im Bereich der ''Backbending''-Anomalie in 158Dy auf die g- Faktoren der Hochspinzustaende in diesem Bereich auswirken, von Interesse. Die im transienten Magnetfeld waehrend des Durchflugs der angeregten Dy-Ionen durch eine duenne magnetisierte Eisenfolie gestoerten Teilchen- γ-Richtungskorrelationen wurden gemessen. Durch den selektiven ortsempfindlichen Nachweis von Dy-Rueckstossionen und Pb- Projektilen unter Vorwaertswinkeln war es moeglich, zusaetzlich zu den g- Faktoren im Backbendingvereich auch g- Faktoren im Spinbereich I <= 8 in 158Dy und 164Dy durch Nachweis der im statischen Hyperfeinfeld praezedierten Teilchen- γ- Richtungskorrelationen nach Implantierung in Eisen zu bestimmen. Das statische Hyperfeinfeld wurde am 4+-Zustand in 164Dy zu Bsub(St)(Dy,Fe) = 254+-25 T bestimmt. Die g- Faktoren wurden durch Vergleich der experimentellen Ergebnisse mit Berechnungen der gestoerten Winkelkorrelationen unter zeitdifferentieller Beruecksichtigung der Population und Abregung der Yrastzustaende sowie der Praezessions- und der Hyperfein- Relaxationseffekte waehrend des Fluges der Dy- Ionen im Vakuum ermittelt. (orig./HSI)Original Title
Magnetische Momente von Hochspin-Rotationszustaenden in 158Dy und 164Dy+
Primary Subject
Secondary Subject
Source
Sep 1983; 187 p; Diss. (D.Sc.).
Record Type
Report
Literature Type
Thesis/Dissertation; Numerical Data
Report Number
Country of publication
BACKBENDING, COULOMB EXCITATION, CRYSTAL FIELD, DE-EXCITATION, DIFFERENTIAL PAC, DYSPROSIUM 158, DYSPROSIUM 158 TARGET, DYSPROSIUM 164, DYSPROSIUM 164 TARGET, ENERGY SPECTRA, EXPERIMENTAL DATA, FOILS, GAMMA SPECTRA, GYROMAGNETIC RATIO, HIGH SPIN STATES, HYPERFINE STRUCTURE, INELASTIC SCATTERING, IRON, LEAD 208, LEAD 208 REACTIONS, MAGNETIC DIPOLE MOMENTS, MAGNETIC FIELDS, MEV RANGE 100-1000, NUCLEAR MAGNETIC MOMENTS, PHOTONS, PRECESSION, RELAXATION, ROTATIONAL STATES, YRAST STATES
ANGULAR CORRELATION, CORRELATIONS, DATA, DIPOLE MOMENTS, DYSPROSIUM ISOTOPES, ELEMENTARY PARTICLES, ELEMENTS, ENERGY LEVELS, ENERGY RANGE, ENERGY-LEVEL TRANSITIONS, EVEN-EVEN NUCLEI, EXCITATION, EXCITED STATES, HEAVY ION REACTIONS, HEAVY NUCLEI, INFORMATION, INTERMEDIATE MASS NUCLEI, ISOTOPES, LEAD ISOTOPES, MAGNETIC MOMENTS, MASSLESS PARTICLES, METALS, MEV RANGE, NUCLEAR PROPERTIES, NUCLEAR REACTIONS, NUCLEI, NUMERICAL DATA, PERTURBED ANGULAR CORRELATION, RARE EARTH NUCLEI, SCATTERING, SPECTRA, STABLE ISOTOPES, TARGETS, TRANSITION ELEMENTS
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Primary Subject
Source
Gesellschaft fuer Schwerionenforschung m.b.H., Darmstadt (Germany, F.R.); 302 p; Jul 1980; p. 41; Published in summary form only.
Record Type
Report
Literature Type
Numerical Data
Report Number
Country of publication
ANGULAR CORRELATION, BACKBENDING, COINCIDENCE METHODS, COULOMB EXCITATION, DOPPLER BROADENING, DYSPROSIUM 158, DYSPROSIUM 158 TARGET, EXCITED STATES, EXPERIMENTAL DATA, GAMMA RADIATION, GAMMA SPECTRA, GYROMAGNETIC RATIO, HIGH SPIN STATES, LEAD 208 REACTIONS, MAGNETIC FIELDS, MEV RANGE 100-1000, NUCLEAR ALIGNMENT, NUCLEAR MAGNETIC MOMENTS, PRECESSION, RECOILS
CORRELATIONS, COUNTING TECHNIQUES, DATA, DYSPROSIUM ISOTOPES, ELECTROMAGNETIC RADIATION, ENERGY LEVELS, ENERGY RANGE, ENERGY-LEVEL TRANSITIONS, EVEN-EVEN NUCLEI, EXCITATION, HEAVY ION REACTIONS, INFORMATION, INTERMEDIATE MASS NUCLEI, IONIZING RADIATIONS, ISOTOPES, LINE BROADENING, MAGNETIC MOMENTS, MEV RANGE, NUCLEAR PROPERTIES, NUCLEAR REACTIONS, NUCLEI, NUMERICAL DATA, RADIATIONS, RARE EARTH NUCLEI, SPECTRA, STABLE ISOTOPES, TARGETS
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The lifetimes of the yrast states Jsup(π) <= 14+ of 126Ba, populated by the 114Cd (16O,4nγ)126Ba reaction at 80 MeV bombarding energy were measured by means of the recoil-distance method. This nucleus exhibits a strong backbending pattern, starting at Jsup(π) = 12+. Although a reduction of 3 was measured for the E2 transition strengths of the 8+ → 6+ transitions, no reduction was found for the 12+ → 10+. This seems to indicate that in 126Ba E2-reductions and backbending are not correlated. (orig.)
[de]
Mit Hilfe der Recoil-Distance-Methode wurden die Lebensdauern der Yrast-Zustaende Jsup(π) <= 14+ von 126Ba gemessen, die ueber die Reaktion 114Cd(16O, 4nγ)126Ba bei 80 MeV Einschussenergie bevoelkert wurden. Dieser Kern weist ein starkes, bei Jsup(π) = 12+ beginnendes Backbending-Muster auf. Obwohl fuer die E2-Uebergangsstaerken der Uebergaenge 8+ → 6+ und 10+ → 8+ eine Reduktion von 3 gemessen wurde, zeigte sich bei 12+ → 10+ keine Reduktion. Dies scheint darauf hinzuweisen, dass in 126Ba E2-Reduktionen und Backbending nicht korreliert sind. (orig.)Original Title
Lebensdauermessungen von Hochspinzustaenden in 126Ba
Primary Subject
Source
Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany, F.R.); p. 95-96; 1978; p. 95-96; Part of a thesis by Seiler-Clark, G.
Record Type
Miscellaneous
Report Number
Country of publication
BARIUM ISOTOPES, BARYONS, BETA DECAY RADIOISOTOPES, ELECTRON CAPTURE RADIOISOTOPES, ELEMENTARY PARTICLES, ENERGY LEVELS, EVEN-EVEN NUCLEI, FERMIONS, HADRONS, HEAVY ION REACTIONS, HOURS LIVING RADIOISOTOPES, INTERMEDIATE MASS NUCLEI, ISOTOPES, NUCLEAR REACTIONS, NUCLEI, NUCLEONS, RADIOISOTOPES, TARGETS
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The distribution of γ-multiplicities of the reactions 118Sn(16O,xnγ)sup(134-x)Ce, 115In(19F,xnγ)sup(134-x)Ce and 110Pd(24Mg,xnγ)sup(134-x)Ce were measured at several bombarding energies by means of a spectrometer consisting of 4 Ge(Li)- and 6 NaJ-detectors. (orig.)
[de]
Die Verteilung der γ-Multiplizitaeten aus den Reaktionen 118Sn(16O,xnγ)sup(134-x)Ce, 115In(19F,xnγ)sup(134-x)Ce und 110Pd(24Mg,xnγ)sup(134-x)Ce wurde unter Verwendung eines aus 4 Ge(Li)- und 6 NaJ-Detektoren bestehenden Spektrometers bei verschiedenen Einschussenergien gemessen. (orig.)Original Title
γ-Multiplizitaeten in (HI, xnγ)-Reaktionen
Primary Subject
Source
Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany, F.R.); p. 97-98; 1978; p. 97-98; Part of a Diploma thesis by Schmidt, D.
Record Type
Miscellaneous
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The E2 transition strengths of yrast states in 126Ba are measured. A reduction of a factor of three is observed for the 10+ → 8+ and 8+ → 6+ transitions. This seems to indicate that the E2 reductions and the backbending pattern in this nucleus are uncorrelated. (Auth.)
Primary Subject
Record Type
Journal Article
Journal
Phys. Lett., B; ISSN 0031-9163; 
; v. 80(4-5); p. 345-346
; v. 80(4-5); p. 345-346
Country of publication
BARIUM ISOTOPES, BARYONS, BETA DECAY RADIOISOTOPES, ELECTRON CAPTURE RADIOISOTOPES, ELEMENTARY PARTICLES, ENERGY LEVELS, ENERGY-LEVEL TRANSITIONS, EVEN-EVEN NUCLEI, FERMIONS, HADRONS, HEAVY ION REACTIONS, HOURS LIVING RADIOISOTOPES, INTERMEDIATE MASS NUCLEI, ISOTOPES, MATHEMATICAL MODELS, MULTIPOLE TRANSITIONS, NUCLEAR MODELS, NUCLEAR REACTIONS, NUCLEI, NUCLEONS, RADIOISOTOPES, TARGETS
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The lifetime of the yrast states Jsup(π) <= approximately 14+ of the isotopes 130132134Ce, populated in the reactions 118120122Sn(16O,4nγ)130132134Ce at a bombarding energy of 76 MeV, were measured by means of the Doppler-shift recoil distance method. A pronounced reduction of the E2 transition strengths within the yrast sequence, increasing strongly with neutron number, was observed. In all cases, the feeding scheme of the yrast states contains long-lived components (tau → 20 ns), the total intensity of which is again correlated to the neutron number. (Auth.)
Primary Subject
Record Type
Journal Article
Journal
Nuclear Physics. A; v. 292(1-2); p. 267-280
Country of publication
BARYONS, BETA DECAY RADIOISOTOPES, CERIUM ISOTOPES, DAYS LIVING RADIOISOTOPES, ELECTROMAGNETIC RADIATION, ELECTRON CAPTURE RADIOISOTOPES, ELEMENTARY PARTICLES, ENERGY LEVELS, ENERGY RANGE, EVEN-EVEN NUCLEI, FERMIONS, HADRONS, HEAVY ION REACTIONS, INTERMEDIATE MASS NUCLEI, IONIZING RADIATIONS, ISOTOPES, MEV RANGE, NUCLEAR REACTIONS, NUCLEI, NUCLEONS, RADIATIONS, RADIOISOTOPES, RARE EARTH NUCLEI, SPECTRA, TARGETS
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Original Title
Lebensdauermessungen an Hochspin-Zustaenden in 126Ba
Primary Subject
Source
DPG spring meeting and advanced training meeting of the Fachausschuss Kernphysik, Sektion A: Nuclear physics; Heidelberg, Germany, F.R; 13 - 18 Mar 1978; AED-CONF--78-084-172; Short communication only.
Record Type
Journal Article
Literature Type
Conference
Journal
Verhandlungen der Deutschen Physikalischen Gesellschaft; (no. 4); p. 843
Country of publication
BARIUM ISOTOPES, BARYONS, BETA DECAY RADIOISOTOPES, ELECTRON CAPTURE RADIOISOTOPES, ELEMENTARY PARTICLES, ENERGY LEVELS, EVEN-EVEN NUCLEI, FERMIONS, HADRONS, HEAVY ION REACTIONS, HOURS LIVING RADIOISOTOPES, INTERMEDIATE MASS NUCLEI, ISOTOPES, NUCLEAR REACTIONS, NUCLEI, NUCLEONS, RADIOISOTOPES, SPECTRA, TARGETS
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Primary Subject
Source
Conferences on nuclear physics - particle physics; Karlsruhe, Germany, F.R; 22 - 27 Mar 1982; Published in summary form only.
Record Type
Journal Article
Literature Type
Conference
Journal
Verhandlungen der Deutschen Physikalischen Gesellschaft; ISSN 0420-0195; ; v. 17(6); p. 1253
; v. 17(6); p. 1253
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Original Title
Magnetische Momente von Hochspinzustaenden in 156Dy
Primary Subject
Source
Spring meeting of the Fachausschuss Kern- und Hochenergiephysik of DPG (Sektion A: Kernphysik) of the Fachausschuss Kern- und Teilchenphysik of OePG and Sektion Kern- und Hochenergiephysik of SPG; Innsbruck (Austria); 26-30 Mar 1984; Published in summary form only.; CODEN: VDPEA.
Record Type
Journal Article
Literature Type
Conference
Journal
Verhandlungen der Deutschen Physikalischen Gesellschaft; ISSN 0420-0195; ; v. 19(3); p. 1071
; v. 19(3); p. 1071
Country of publication
BARYONS, DIPOLE MOMENTS, DISTRIBUTION, DYSPROSIUM ISOTOPES, ELEMENTARY PARTICLES, ENERGY LEVELS, EVEN-EVEN NUCLEI, EXCITED STATES, FERMIONS, HADRONS, HEAVY ION REACTIONS, INTERMEDIATE MASS NUCLEI, ISOTOPES, MAGNETIC MOMENTS, MASSLESS PARTICLES, NUCLEAR PROPERTIES, NUCLEAR REACTIONS, NUCLEI, NUCLEONS, NUCLEOSYNTHESIS, RARE EARTH NUCLEI, STABLE ISOTOPES, SYNTHESIS, TARGETS
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Original Title
Magnetische Momente von Yrastzustaenden in 158Dy und 155Dy
Primary Subject
Source
Conferences on nuclear physics - particle physics; Karlsruhe, Germany, F.R; 22 - 27 Mar 1982; Published in summary form only.
Record Type
Journal Article
Literature Type
Conference
Journal
Verhandlungen der Deutschen Physikalischen Gesellschaft; ISSN 0420-0195; ; v. 17(6); p. 1254
; v. 17(6); p. 1254
Country of publication
BARYONS, DIPOLE MOMENTS, DISTRIBUTION, DYSPROSIUM ISOTOPES, ELEMENTARY PARTICLES, ENERGY LEVELS, EVEN-EVEN NUCLEI, FERMIONS, HADRONS, HEAVY ION REACTIONS, INTERMEDIATE MASS NUCLEI, ISOTOPES, MAGNETIC MOMENTS, MASSLESS PARTICLES, NUCLEAR PROPERTIES, NUCLEAR REACTIONS, NUCLEI, NUCLEONS, NUCLEOSYNTHESIS, RARE EARTH NUCLEI, STABLE ISOTOPES, TARGETS
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
| 1 | 2 | Next |