ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Dipole, quadrupole, and octupole terms in the long-range hyperfine frequency shift for hydrogen in the presence of inert gases (1987)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 86 (1987), S. 3539-3548 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The R−6, R−8, and R−10 terms in the long-range expansion for the hyperfine frequency shift are calculated for hydrogen in the presence of He, Ne, Ar, Kr, and Xe. The R−6 terms are based on the dipole oscillator strength sums. For helium, the R−8 and R−10 terms are based on quadrupole and octupole oscillator strength sums. For the heavier inert gases, the results for the R−8 and R−10 terms are obtained from the sum rules and the static polarizabilities. Upper bounds are also determined for the R−8 and R−10 terms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.451957
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The effect of dynamics on band shapes of hydrogen bonded complexes in solution (1987)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 87 (1987), S. 781-790 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We study the IR absorption of the νs (XH) mode of a hydrogen bonded species (XH---Y) in solution. Our theory assumes that the dephasing of the νs dipole transition is due to coupling to the low frequency stochastic νσ (XH---Y) stretching mode. Our approach is novel in that it uses Kubo's stochastic Liouville equation to include both dynamics and Fermi resonance coupling of the νs levels with other intramolecular levels. Spectra assuming three bath models (Smoluchowski, Ornstein–Uhlenbeck, and Zwanzig) are compared and discussed. The theory gives good overall qualitative agreement with experiments involving moderate strength hydrogen bonds. It also demonstrates that the overall shape of the band can be analyzed in terms of parameters that affect primarily νs, and that dynamics should be included for a realistic description of these bands.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.453285
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Dense-fluid Lyapunov spectra via constrained molecular dynamics (1987)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 87 (1987), S. 6665-6670 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: A Lagrange-multiplier method for finding the complete spectrum of Lyapunov exponents, which describe the spreading and mixing of many-body phase-space trajectories, is developed and applied here to simple two- and three-dimensional equilibrium fluids with short-range repulsive forces. The numerical values of the Lyapunov exponents converge well, in computer simulations of 103 to 105 time steps, and are insensitive both to the initial conditions and to the numerical accuracy of the trajectory integration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.453402
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Site-selective spectroscopy of hydrogenic sites in CaF2:Er3+ crystals (1987)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 86 (1987), S. 521-544 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Laser selective excitation and optical absorption studies of hydrogenated CaF2:0.05% Er3+ crystals have revealed 16 Er3+ ion sites involving H− or D− ion charge compensation. The relative occurrence of these sites can be controlled over a wide range by varying the duration of the hydrogenation treatment. The hydrogenic nature of these sites is established by the observation of local mode absorption lines in the infrared, Er3+ ion electronic line isotope shifts and associated local mode vibronic lines involving the H− and D− ions. Local mode infrared absorption frequencies of four sites are reported for most rare-earth ions. Five new Er3+−F− sites were identified in the laser selective excitation study. For 〈100〉 and 〈111〉 oriented crystals the fluorescence spectra of several of the sites exhibit well-defined polarization which determines their Er3+ ion site symmetries. Symmetry confirmations are also established for the two previously reported single Er3+ ion sites involving fluoride ion compensation. Eleven of the hydrogenic sites reported here are classified into two families, each derived from a single Er3+ ion site of the parent crystal, while three others are attributed to sites of nearly cubic Er3+ ion symmetry. Detailed spectroscopic results for these sites are presented, together with a crystal-field analysis for the C4v symmetry sites and some model assignments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.452304
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Dissociative decay of NeH and NeD Rydberg states: A strong isotope effect (1989)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 91 (1989), S. 6880-6886 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Radiative and predissociative decay of the n=2 Rydberg states of NeH and NeD is examined using translational spectroscopy to determine the c.m. kinetic energies of the dissociation fragments. The n=2 states are produced from 5 keV NeH+ and NeD+ by electron capture in Cs vapor. Expected radiative dissociation of the B 2Π state is observed in NeH, as is predissociation of the A 2Σ+. However, a surprisingly strong suppression of predissociation occurs in NeD. It is attributed primarily to a reduced overlap of the bound and continuum nuclear wave functions, and results in radiative decay. The results for both species support calculations of Theodorakopoulos et al. [J. Phys. B 20, 5335 (1987)].
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.457357
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    High-sensitivity broadband microwave spectroscopy with small nonresonant coils (1986)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 57 (1986), S. 1100-1106 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The use of a small, nonresonant, coil of μm dimensions as the microwave magnetic field structure of a broadband electron-spin-resonance (ESR) spectrometer is described. The coil is driven by a broadband microwave generator which operates between 0.1 and 8.5 GHz. The samples may fill the coil to approximately 100%. It is shown that for small size samples this system offers higher sensitivity than a conventional cavity spectrometer. Because the system is broadband, either frequency scans or the conventional magnetic field scans can be used to traverse the resonance. Examples for DPPH and for the spin glass AgMn using this method are reported. Since the sample coil is small, it has many potential applications, such as insertion into the mixing chamber of a dilution refrigerator or high-pressure cell, efficient use of power in ENDOR and other double resonance experiments, and rapid recovery from transients in pulsed ESR experiments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1138664
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Computer program for predicting tandem parameters (1986)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 57 (1986), S. 740-741 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A computer program has been written to predict all beam-optics parameters as well as to estimate beam currents and radiation levels for a tandem accelerator. The program is useful for testing the feasibility of unusual beams and for setting up the accelerator.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1138849
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Status of the University of Washington superconducting booster (1986)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 57 (1986), S. 761-762 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: We are approximately half-way through the construction phase of the superconducting booster linac. Contracts have been placed for all major items, and many of these have been delivered. The high-beta resonator development has been successful and we are going ahead with construction of these.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1138855
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    First accelerated beam in the Chalk River tandem accelerator superconducting cyclotron (TASCC) facility (1986)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 57 (1986), S. 765-765 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The Chalk River TASCC facility consists of a 13-MV tandem accelerator injecting into a four sector k=520 (ME/q2) superconducting cyclotron that is designed to accelerate all ions from lithium (up to 50 MeV/u) to uranium (up to 10 MeV/u). This report describes the first stages of commissioning in which an iodine-127 beam was accelerated by the tandem to an energy of 71 MeV, injected into the cyclotron and accelerated to a final energy of 1.2 GeV.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1138857
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Langmuir probe technique for plasma parameter measurement in a medium density discharge (1986)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 57 (1986), S. 2210-2217 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The development of a microcomputer-controlled electrostatic probe as a diagnostic technique is described. The technique uses cylindrical probes and the definitive theory of Laframboise to give rapid measurements of the plasma parameters in a medium density (1010 to 1012 cm−3) plasma including the fast electron density and temperature. The iterative technique described overcomes many of the problems associated with established methods of Langmuir probe analysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1138684
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...