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AbstractAbstract
[en] Isotope shift and hyperfine structure of BaI 6s21S0 - 6s6p 1P1 transition (lambda = 533.6 nm) in neutron deficient Ba nuclides (N < 82) have been measured by observing the resonance fluorescence induced by a high resolution tunable CW dye laser in a well collimated atomic beam. Results are now available for 16 Ba isotopes and isomers between A = 140 and A = 126. The experiments aimed at information on nuclear charge radii, magnetic dipole and electric quadrupole moments. The results are discussed in the light of other experimental and theoretical nuclear structure studies of the transitional nuclei with (50 < Z, N < 82) in particular in comparison with results extracted from γ-spectroscopic investigations on the basis of a triaxial-rotor-plus-particle model. The isotope shift discrepancy is quite well described by the droplet model of Myers. A striking and up to now not understandable feature is the negative isomer shift of the g 7/2+ isomer of 129Ba. (orig.)
[de]
Isotopieverschiebung und Hyperfeinstruktur des BaI 6s21S0 - 6s6p 1P1 - Uebergangs (lambda = 533.6 nm) wurden in neutronenarmen Ba-Nukliden (N<82) untersucht durch Beobachtung der Resonanzfluoreszenz nach Anregung der Ba-Atome in einem gut kollimerten Atomstrahl mittels eines schmalbandigen durchstimmbaren Dauerstrich-Farbstofflasers. Die Experimente zielten auf Informationen ueber Kernladungsradien, magnetische Dipol- und elektrische Quadrupolmomente. Die gewonnenen Resultate werden im Licht anderer Untersuchungen zur Kernstruktur im Bereich (50 < Z, N < 82) diskutiert, insbesondere im Vergleich zu Ergebnissen, die aus γ-spektroskopischen Messungen auf der Basis eines 'triaxial-rotor-plusparticle'-Modells gewonnen wurden. Die Isotopenverschiebungsdiskrepanz wird relativ gut durch das Droplet-Modell von Myers beschrieben. Eine ueberraschende und noch nicht verstandene Tatsache ist die negative Isomerieverschiebung des g 7/2+-Isomers von 129Ba. (orig.)Original Title
Hochaufloesende Laserspektroskopie zur Untersuchung von Kernladungsradien und Kernmomenten neutronenarmer Ba-Isotope
Primary Subject
Source
May 1979; 67 p
Record Type
Report
Literature Type
Numerical Data
Report Number
Country of publication
ALKALINE EARTH METALS, BETA DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, DATA, DATA FORMS, DAYS LIVING RADIOISOTOPES, ELECTRON CAPTURE RADIOISOTOPES, ELEMENTS, EMISSION SPECTROSCOPY, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, HOURS LIVING RADIOISOTOPES, INFORMATION, INTERMEDIATE MASS NUCLEI, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, METALS, MINUTES LIVING RADIOISOTOPES, NUCLEI, NUMERICAL DATA, RADIOISOTOPES, SPECTROSCOPY, STABLE ISOTOPES, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
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AbstractAbstract
[en] We have determined the isomeric ratios in 130Ba(γ, n)129m,gBa, 132Ba(γ, n)131m,gBa and 134Ba(γ, n)133m,gBa photonuclear reactions of natural barium induced by bremsstrahlungs with end-point energies in the giant dipole resonance region. The investigated samples were irradiated at electron accelerator Microtron MT-25 of the Flerov Laboratory of Nuclear Reaction, Joint Institute for Nuclear Research, Dubna, Russia. The gamma spectra of the samples irradiated were measured with spectroscopic system consisting of 8192 channel analyzer and high-energy resolution (180 keV at gamma ray 1332 keV of 60Co) HP(Ge) semiconductor detector Canberra. The GENIE2000 (Canberra) computer program was used for data processing. The results were discussed and compared with those of other authors. (author)
Primary Subject
Source
40 refs.
Record Type
Journal Article
Journal
Journal of Radioanalytical and Nuclear Chemistry; ISSN 0236-5731;
; CODEN JRNCDM; v. 292(1); p. 89-96

Country of publication
ALKALINE EARTH ISOTOPES, BARIUM ISOTOPES, BETA DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, DAYS LIVING RADIOISOTOPES, ELECTROMAGNETIC RADIATION, ELECTRON CAPTURE RADIOISOTOPES, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, HOURS LIVING RADIOISOTOPES, INTERMEDIATE MASS NUCLEI, INTERNAL CONVERSION RADIOISOTOPES, INTERNATIONAL ORGANIZATIONS, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MINUTES LIVING RADIOISOTOPES, NUCLEAR REACTIONS, NUCLEI, RADIATIONS, RADIOISOTOPES, STABLE ISOTOPES, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
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AbstractAbstract
No abstract available
Primary Subject
Source
Spring meeting of the DPG, NNV, DFS and BNV-SBP; Ghent, Belgium; 26 - 30 Mar 1979; INKA-CONF--79-004-146; Short communication only.
Record Type
Journal Article
Literature Type
Conference
Journal
Verhandlungen der Deutschen Physikalischen Gesellschaft; (no. 3); p. 824
Country of publication
BARIUM ISOTOPES, BETA DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, DAYS LIVING RADIOISOTOPES, ELECTROMAGNETIC RADIATION, ELECTRON CAPTURE RADIOISOTOPES, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, HOURS LIVING RADIOISOTOPES, INTERMEDIATE MASS NUCLEI, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MINUTES LIVING RADIOISOTOPES, NUCLEAR PROPERTIES, NUCLEI, RADIATIONS, RADIOISOTOPES, STABLE ISOTOPES, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
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AbstractAbstract
No abstract available
Original Title
Isotopieverschiebung der Bariumnuklide 140Ba, 138Ba, 136Ba und 134Ba in der Ba II-Resonanzlinie 6p2P1/2 - 6s2S1/2
Primary Subject
Source
3 figs.; 4 tabs.; 31 refs.
Record Type
Journal Article
Journal
Zeitschrift fuer Physik; v. 267(3); p. 209-217
Country of publication
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Subber, A R H; Al-Khudair, Falih H, E-mail: falih9@gmail.com2011
AbstractAbstract
[en] The level structure of even-even neutron-rich 140-148Ba isotopes was studied in the framework of the interacting boson model. The reduced transition probabilities B(E2) of these nuclei was calculated. A set of parameters was used in the calculation to approach the values with the measured data. It was pointed out that interacting boson approximations are equitably reliable for the description of spectra and other properties. It was found that there is a rapid transition between spherical and rotational shapes.
Primary Subject
Secondary Subject
Source
Available from http://dx.doi.org/10.1088/0031-8949/84/03/035201; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Physica Scripta (Online); ISSN 1402-4896;
; v. 84(3); [5 p.]

Country of publication
ALKALINE EARTH ISOTOPES, BARIUM ISOTOPES, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, CONFIGURATION, DAYS LIVING RADIOISOTOPES, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, INTERMEDIATE MASS NUCLEI, ISOTOPES, MATHEMATICAL MODELS, MILLISECONDS LIVING RADIOISOTOPES, MINUTES LIVING RADIOISOTOPES, NUCLEAR MODELS, NUCLEI, RADIOISOTOPES, SECONDS LIVING RADIOISOTOPES, SHELL MODELS
Reference NumberReference Number
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Tonchev, A.P.; Gangrskij, Yu.P.; Belov, A.G.
Joint Inst. for Nuclear Research, Dubna (Russian Federation). Lab. of Nuclear Reactions1995
Joint Inst. for Nuclear Research, Dubna (Russian Federation). Lab. of Nuclear Reactions1995
AbstractAbstract
[en] The cross sections of (γ, n)-reactions in the range of the Giant Dipole Resonance, leading to the isomeric states h11/2 in odd isotopes of Ba with mass number A=129-137, are presented. An activation method of measurement has been used. The dependence of the isomeric ratio on γ-energy and mass number of the isotopes has been obtained. Different factors influencing the value of the isomeric ratio are discussed. 18 refs., 7 figs., 2 tabs
Primary Subject
Secondary Subject
Source
1995; 12 p; Submitted to Yadernaya Fizika.
Record Type
Report
Literature Type
Numerical Data
Report Number
Country of publication
BARIUM ISOTOPES, BARYONS, BETA DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, DATA, DAYS LIVING RADIOISOTOPES, ELECTRON CAPTURE RADIOISOTOPES, ELEMENTARY PARTICLES, EVEN-ODD NUCLEI, FERMIONS, HADRONS, HOURS LIVING RADIOISOTOPES, INFORMATION, INTERMEDIATE MASS NUCLEI, INTERNAL CONVERSION RADIOISOTOPES, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MINUTES LIVING RADIOISOTOPES, NUCLEAR REACTIONS, NUCLEI, NUCLEONS, NUMERICAL DATA, RADIOISOTOPES, RESONANCE, STABLE ISOTOPES, TARGETS, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] It was pointed out that the level scheme of the transitional nuclei 124,126,128,130,132,134,136Ba also can be studied by both characteristics (IBM-1 and IBM-2) of the interacting boson model and an adequate point of the model leading to E2 transitions is therefore confirmed. Most of the δ(E2/M1) ratios that are still not known so far are stated and the set of parameters used in these calculations is the best approximation that has been carried out so far. It has turned out that the interacting boson approximation is fairly reliable for the calculation of spectra in the entire set of 124,126,128,130,132,134,136Ba isotopes.
Primary Subject
Source
Copyright (c) 2010 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Country of publication
ALKALINE EARTH ISOTOPES, BARIUM ISOTOPES, BETA DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, CALCULATION METHODS, DAYS LIVING RADIOISOTOPES, ELECTRON CAPTURE RADIOISOTOPES, ENERGY-LEVEL TRANSITIONS, EVEN-EVEN NUCLEI, HOURS LIVING RADIOISOTOPES, INTERMEDIATE MASS NUCLEI, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MATHEMATICAL MODELS, MILLISECONDS LIVING RADIOISOTOPES, MINUTES LIVING RADIOISOTOPES, MULTIPOLE TRANSITIONS, NUCLEAR MODELS, NUCLEI, RADIOISOTOPES, SHELL MODELS, STABLE ISOTOPES
Reference NumberReference Number
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AbstractAbstract
[en] A graphical method for separating mass and volume effects from purely optical isotope shift data is presented and compared with King's ''bunching'' method. Recent experimental data on isotope shifts for a wide range of spectral lines in the naturally abundant isotopes of Ba I and Ba II are analysed. Some agreement is found with muonic X-ray data concerning the nuclear size for the isotopes 136, 137 and 138, but there is disagreement (over 20%) for the other isotopes. The level isotope shifts are further parameterised in terms of a linear model, and the specific mass effect is decomposed into sums of one-electron and two-electron shift parameters with respect to the inert-gas like ground state of Ba III. (orig.)
Primary Subject
Source
With 39 refs.; CODEN: ZPAAD.
Record Type
Journal Article
Journal
Zeitschrift fuer Physik. A, Atoms and Nuclei; ISSN 0340-2193;
; v. 316(3); p. 275-283

Country of publication
ALKALINE EARTH METALS, ATOMIC IONS, BARIUM ISOTOPES, CHARGED PARTICLES, DAYS LIVING RADIOISOTOPES, ELEMENTS, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, INTERMEDIATE MASS NUCLEI, IONS, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, METALS, MINUTES LIVING RADIOISOTOPES, NUCLEI, RADIOISOTOPES, SPECTRA, STABLE ISOTOPES
Reference NumberReference Number
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AbstractAbstract
[en] In summary, commercial quantities of barium carbonate and barium chloride are presently being produced in the United States. Chemical Products Corporation offers both barium carbonate and barium chloride in 50 lb. bags as well as in larger containers. The minimum quantity for direct sale is a 20 ton truckload. Smaller quantities are available through distributors. Commercial quantities of barium hydroxide and barium nitrate are also available through distributors. Chemical Products Corporation sees the emerging use of barium in superconductors as an opportunity and intends to work with superconductor producers to supply the barium salts required in the purity required
Primary Subject
Secondary Subject
Source
Anon; p. 15.1-15.10; 1987; p. 15.1-15.10; Advantage Quest; Sunnyvale, CA (USA); Superconductors in electronics commercialization workshop; San Francisco, CA (USA); 14-15 Sep 1987
Record Type
Book
Literature Type
Conference
Country of publication
ALKALINE EARTH METAL COMPOUNDS, ALKALINE EARTH METALS, BARIUM COMPOUNDS, CARBON COMPOUNDS, CARBONATES, CHLORIDES, CHLORINE COMPOUNDS, DEVELOPED COUNTRIES, ELECTRIC CONDUCTIVITY, ELECTRICAL PROPERTIES, ELEMENTS, HALIDES, HALOGEN COMPOUNDS, HYDROGEN COMPOUNDS, HYDROXIDES, INDUSTRY, METALS, NITRATES, NITROGEN COMPOUNDS, NORTH AMERICA, OXYGEN COMPOUNDS, PHYSICAL PROPERTIES, TESTING
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AbstractAbstract
[en] The sum peak intensity relative to its single peak was determined in various compounds of 133Ba by the technique of gamma-gamma-ray sum peaks observed in a single HPGe detector. The change in intensity ratio was used to determine the time integral perturbed angular correlation coefficients for BaCl2, Ba(NO3)2, BaSO4, Ba-EDTA, Ba-MES and Ba-BSA compounds. (author) 12 refs.; 2 figs.; 3 tabs
Primary Subject
Record Type
Journal Article
Literature Type
Numerical Data
Journal
Journal of Radioanalytical and Nuclear Chemistry; ISSN 0236-5731;
; CODEN JRNCD; v. 147(2); p. 371-375

Country of publication
ALKALINE EARTH METAL COMPLEXES, ALKALINE EARTH METAL COMPOUNDS, ANGULAR CORRELATION, BARIUM COMPOUNDS, BARIUM ISOTOPES, BETA DECAY RADIOISOTOPES, CHLORIDES, CHLORINE COMPOUNDS, COMPLEXES, CORRELATIONS, DATA, DAYS LIVING RADIOISOTOPES, ELECTRON CAPTURE RADIOISOTOPES, EVEN-ODD NUCLEI, HALIDES, HALOGEN COMPOUNDS, INFORMATION, INTERMEDIATE MASS NUCLEI, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, NITRATES, NITROGEN COMPOUNDS, NUCLEI, NUMERICAL DATA, OXYGEN COMPOUNDS, PERTURBED ANGULAR CORRELATION, RADIOISOTOPES, SULFATES, SULFUR COMPOUNDS, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
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