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  • 1985-1989  (2)
  • 1975-1979  (1)
Datenquelle
Materialart
Erscheinungszeitraum
Jahr
  • 1
    Digitale Medien
    Digitale Medien
    Comparisons of vector analyzing-power data and calculations for neutron-deuteron elastic scattering from 10 to 14 MeV (1987)
    Springer
    Few body systems 2 (1987), S. 19-32 
    Details
    ISSN: 1432-5411
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract High-accuracy analyzing-powerA y(θ) data forn-d elastic scattering at 12 MeV have been measured using the polarized-neutron facilities at the Triangle Universities Nuclear Laboratory (TUNL). The present data have been combined with our previousn-d measurements at 10, 12, and 14.1 MeV to form the highest-accuracyA y(θ) data set forn-d elastic scattering below 20 MeV. These data are compared to recent Faddeev-based neutron-deuteron (n-d) calculations which use the Paris and Bonn equivalent separable potentials PEST and BEST, as well as Doleschall's representation of theP- andD-wave nucleon-nucleon interactions. None of these models adequately describe the data in the angular region around the maximum ofA y(θ). Possible reasons for the discrepancies are discussed. The sensitivity of the present Faddeev-based calculations to various angular momentum components of the nucleon-nucleon interaction are examined.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01078989
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    81mKr: Production, application, and use of computer for ventilation studies (1977)
    Springer
    European journal of nuclear medicine 2 (1977), S. 1-8 
    Details
    ISSN: 1619-7089
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Theoretical excitation functions have been used for the production of neutron-deficient rubidium isotopes by (α, kn) reactions on 79Br and 81Br. Krypton generators have been produced using the internal beam of the cyclotron of the Rudjer Bošković Institute. New methods for target preparation and radiochemical separation have been developed. Preliminary clinical studies have been performed with the aim of investigating the possible use of krypton generators in conjunction with a gamma camera and a digital computer. The digital computer was used to normalize images of regional ventilation and to calculate and display isoventilation regions. Clinical examples of images of regional ventilation that permit resolution between nonventilated and well-ventilated regions are given.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00448099
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Two-body forces and amplitudes in the three-body model for the4He( $$\vec d$$ ,pα)n reaction withE d =12 and 17 MeV (1988)
    Springer
    Few body systems 4 (1988), S. 39-49 
    Details
    ISSN: 1432-5411
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The4He( $$\vec d$$ ,pα)n cross section, vector and tensor analyzing-power data with 12 and 17 MeV deuterons at kinematic conditions including proton-alpha quasifree scattering, neutron-alpha and proton-alpha final-state interactions, as well as collinearity, are compared with the predictions of the three-body model using different nucleon-alpha and neutron-proton forces. In general, better two-body potentials give a better fit to the data, except for the vector analyzing-power data. The roles of the impulse and multiple-scattering amplitudes are studied to understand the sensitivity to two-body potentials and to understand the reason for the successes and the failures of the model.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01076274
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