Filters
Results 1 - 10 of 180
Results 1 - 10 of 180.
Search took: 0.035 seconds
| Sort by: date | relevance |
Jahnke, U.
Freie Univ. Berlin (F.R. Germany). Fachbereich Physik1970
Freie Univ. Berlin (F.R. Germany). Fachbereich Physik1970
AbstractAbstract
[en] The differential cross sections of the 91Zr(p,n)91Nb reaction were measured to all final states up to the excitation energy of 2.8 MeV in a time-of-flight experiment using injection energies between 4.5 and 5.4 MeV. For two injection energies the reaction occurs through T = 6 analog states in the compound nucleus. The measurements are analyzed on the basis of the statistical model of the compound nucleus reaction. The cross sections and angular distributions are calculated according to Hauser-Feshbach formulae and simplified formulae in which the sum over the open reaction channels is expressed in terms of the width and the distance of the compound states and the spin distribution in the residual nucleus. The transmission coefficients for neutrons are determined experimentally from the branching ratio in the decay of the 4+ and 2+ analog states to 91Nb states whose spin and parity is known; the transmission of the protons is calculated on the basis of several parameter laws of the optical model from the literature. (orig./RF)
[de]
In einem Flugzeitexperiment wurden bei Einschussenergien zwischen 4,5 und 5,4 MeV die differentiellen Wirkungsquerschnitte der Reaktion 91Zr(p,n)91Nb zu allen Endzustaenden bis zur Anregungsenergie von 2,8 MeV gemessen. Bei zwei Einschussenergien verlaeuft die Reaktion ueber T=6-Analogzustaende im Compoundkern. Die Messungen werden im Rahmen des Statistischen Modells der Compoundkernreaktion analysiert. Wirkungsquerschnitte und Winkelverteilungen werden nach den Hauser-Feshbach-Formeln und nach vereinfachten Formeln berechnet, in denen die Summe ueber die offenen Reaktionskanaele durch Breite und Abstand der Compoundzustaende und die Spinverteilung im Restkern ausgedrueckt ist. Die Transmissionskoeffizienten fuer Neutronen werden experimentell aus dem Verzweigungsverhaeltnis beim Zerfall der 4+- und 2+-Analogzustaende zu 91Nb-Zustaenden mit bekanntem Spin und Paritaet bestimmt; die Transmission der Protonen wird nach mehreren Parametersaetzen des Optischen Modells aus der Literatur berechnet. (orig./RW)Original Title
Hauser-Feshbach-Analyse der Reaktion 91Zr(p,n)91Nb
Primary Subject
Source
17 Dec 1970; 58 p; 13 figs.; 13 tabs.; with refs. Available from ZAED.; Diss. (D.Sc.).
Record Type
Report
Literature Type
Thesis/Dissertation
Country of publication
ANGULAR MOMENTUM, BARYONS, BEAMS, BETA DECAY RADIOISOTOPES, CROSS SECTIONS, DAYS LIVING RADIOISOTOPES, ELECTRON CAPTURE RADIOISOTOPES, ELEMENTARY PARTICLES, EVEN-ODD NUCLEI, FERMIONS, HADRONS, INTERMEDIATE MASS NUCLEI, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MATHEMATICAL MODELS, NIOBIUM ISOTOPES, NUCLEAR THEORY, NUCLEI, NUCLEON BEAMS, NUCLEONS, ODD-EVEN NUCLEI, PARTICLE BEAMS, PARTICLE PROPERTIES, RADIOISOTOPES, STABLE ISOTOPES, YEARS LIVING RADIOISOTOPES, ZIRCONIUM ISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Jahnke, U.
Hahn-Meitner-Institut fuer Kernforschung Berlin G.m.b.H. (F.R. Germany). Bereich Kern- und Strahlenphysik1974
Hahn-Meitner-Institut fuer Kernforschung Berlin G.m.b.H. (F.R. Germany). Bereich Kern- und Strahlenphysik1974
AbstractAbstract
No abstract available
Original Title
Vorbeschleuniger fuer ein Schwer-Ionen-Zyklotron
Primary Subject
Source
May 1974; 42 p; 14 figs.; 8 tabs.; 37 refs.
Record Type
Report
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The decay modes of highly excited nuclei have been studied using energetic antiprotons. The excitation energy distributions are in very good agreement with predictions from the intranuclear cascade model
Primary Subject
Source
3. international conference on nucleon-antinucleon physics; Materialy tret'ej mezhdunarodnoj konferentsii po nuklon-antinuklonnoj fizike; Moscow (Russian Federation); 11-16 Sep 1995; 13 refs.
Record Type
Journal Article
Literature Type
Conference
Journal
Country of publication
ANTIBARYONS, ANTIMATTER, ANTINUCLEI, ANTINUCLEON REACTIONS, ANTINUCLEONS, ANTIPARTICLES, BARYON REACTIONS, BARYONS, CATIONS, CHARGED PARTICLES, DECAY, ELEMENTARY PARTICLES, ENERGY LEVELS, FERMIONS, HADRON REACTIONS, HADRONS, HYDROGEN IONS, HYDROGEN IONS 1 PLUS, INTERACTIONS, IONS, MATTER, MEASURING INSTRUMENTS, NUCLEAR REACTIONS, NUCLEI, NUCLEON REACTIONS, NUCLEONS, PARTICLE INTERACTIONS, PROTONS, RADIATION DETECTORS, TARGETS
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Primary Subject
Source
Goldring, Gvirol (ed.); p. 723-728; 1971; Gordon and Breach Science Publishers Inc; New York; Conference on hyperfine interactions detected by nuclear radiation; Rehovot and Jerusalem, Israel; 6 Sep 1970
Record Type
Book
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Original Title
Elastische Streuung und Fusion der Systeme 20Ne + 107Ag, 40Ar + 110Pd und 40Ar + 118Sn
Primary Subject
Source
Hahn-Meitner-Institut fuer Kernforschung Berlin G.m.b.H. (Germany, F.R.). Bereich Kern- und Strahlenphysik; p. 40; 1978; p. 40; Short communication only.
Record Type
Report
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Original Title
Messung von Anregungsfunktionen fuer Streuung und Fusion schwerer Ionen am internen Strahl des Zyklotrons
Primary Subject
Source
Hahn-Meitner-Institut fuer Kernforschung Berlin G.m.b.H. (Germany, F.R.). Bereich Kern- und Strahlenphysik; p. 39; 1978; p. 39; Short communication only.
Record Type
Report
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Primary Subject
Source
Goldring, Gvirol (ed.); p. 729-732; 1971; Gordon and Breach Science Publishers Inc; New York; Conference on hyperfine interactions detected by nuclear radiation; Rehovot and Jerusalem, Israel; 6 Sep 1970
Record Type
Book
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Short communication
Primary Subject
Secondary Subject
Source
Maerten, H. (ed.); Schilling, K.D. (ed.); Technische Univ. Dresden (Germany). Inst. fuer Kern- und Atomphysik; Forschungszentrum Rossendorf e.V. (FZR), Dresden (Germany). Inst. fuer Kern- und Hadronenphysik; 144 p; Mar 1993; p. 49-51; International workshop on high-resolution sprectroscopy of fission fragments, neutrons, and gamma-rays; Dresden (Germany); 01-02 Feb 1993
Record Type
Report
Literature Type
Conference; Numerical Data
Report Number
Country of publication
ANGULAR DISTRIBUTION, CHARGE DISTRIBUTION, DEEP INELASTIC HEAVY ION REACTIONS, DIFFERENTIAL CROSS SECTIONS, EXPERIMENTAL DATA, FISSION FRAGMENTS, FISSION NEUTRONS, FISSION SPECTRA, GEV RANGE 01-10, GOLD 197 TARGET, HEAVY NUCLEI, INTERMEDIATE MASS NUCLEI, LEAD 208 REACTIONS, MULTIPLICITY, PARTICLE RAPIDITY, POLARIZED PRODUCTS, SPONTANEOUS FISSION, TRANSVERSE MOMENTUM
BARYONS, CROSS SECTIONS, DATA, DECAY, DISTRIBUTION, ELEMENTARY PARTICLES, ENERGY RANGE, FERMIONS, FISSION, GEV RANGE, HADRONS, HEAVY ION REACTIONS, INFORMATION, LINEAR MOMENTUM, NEUTRONS, NUCLEAR DECAY, NUCLEAR FRAGMENTS, NUCLEAR REACTIONS, NUCLEI, NUCLEONS, NUMERICAL DATA, PARTICLE PROPERTIES, SPECTRA, TARGETS
Reference NumberReference Number
Related RecordRelated Record
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Primary Subject
Source
Hahn-Meitner-Institut fuer Kernforschung Berlin G.m.b.H. (Germany, F.R.). Bereich Kern- und Strahlenphysik; 193 p; 1982; p. 75-76; Published in summary form only.
Record Type
Report
Literature Type
Numerical Data
Report Number
Country of publication
ARGON 40 REACTIONS, CARBON 12 REACTIONS, CARBON 12 TARGET, ENERGY DEPENDENCE, EXCITATION FUNCTIONS, HEAVY ION FUSION REACTIONS, INTEGRAL CROSS SECTIONS, KRYPTON 86 REACTIONS, NEUTRONS, NICKEL 58 TARGET, NICKEL 60 TARGET, NICKEL 62 TARGET, NICKEL 64 TARGET, OXYGEN 16 REACTIONS, OXYGEN 16 TARGET, PALLADIUM 104 TARGET, PALLADIUM 110 TARGET, SAMARIUM 144 TARGET, SAMARIUM 154 TARGET, TELLURIUM 130 TARGET, THEORETICAL DATA, TIN 118 TARGET, TIN 124 TARGET
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Tishchenko, V.G.; Jahnke, U.; Herbach, C.M.; Hilscher, D.
Hahn-Meitner-Institut Berlin GmbH (Germany)2002
Hahn-Meitner-Institut Berlin GmbH (Germany)2002
AbstractAbstract
[en] Ternary and quaternary spontaneous decay of 252Cf was studied with the NESSI detector, a combination of two 4π detectors for charged particles, neutrons and γ-rays. The applied method of particle identification by measuring the energies and relative time-of-flights of the decay products is shown to be very effective for the study of rare decay modes. The energy and angular distributions of the decay products, the associated neutron multiplicities, the total energy of the prompt γ-radiation as well as correlations between the various observables were measured for the first time in a single full-scale experiment. The characteristics of ternary fission known from previous investigations are confirmed in the frame of a methodically independent experiment. Preliminary estimates of the quaternary fission yield are presented. An attempt is made to determine the mechanism of quaternary fission. (orig.)
Primary Subject
Source
Nov 2002; 39 p; ISSN 0936-0891; 
Record Type
Report
Literature Type
Numerical Data
Report Number
Country of publication
ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, BARYONS, CALIFORNIUM ISOTOPES, CHARGED PARTICLES, DATA, DECAY, DISTRIBUTION, ELECTROMAGNETIC RADIATION, ELEMENTARY PARTICLES, EVEN-EVEN NUCLEI, FERMIONS, FISSION, GAMMA RADIATION, HADRONS, HEAVY NUCLEI, INFORMATION, IONIZING RADIATIONS, ISOTOPES, NEUTRONS, NUCLEAR DECAY, NUCLEAR FRAGMENTS, NUCLEAR REACTIONS, NUCLEI, NUCLEONS, NUMERICAL DATA, RADIATIONS, RADIOISOTOPES, SPECTRA, SPONTANEOUS FISSION RADIOISOTOPES, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
| 1 | 2 | 3 | Next |