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  • 1985-1989  (3)
  • 1980-1984  (2)
  • 1985  (3)
  • 1980  (2)
Material
Years
  • 1985-1989  (3)
  • 1980-1984  (2)
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 294 (1980), S. 107-108 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The new isotope184Pb has been produced through40Ca +147,148Sm reactions, and detected by its a radioactivity (Eα = 6618 ± 10 keV). The detection technique involves thermalization of recoil nuclei in a gas and electrostatic collection onto the active surface of a solid state detector. The identification is made on the basis of the (40Ca,xn) excitation functions, and of the time correlation with the α-decay of the daughter180Hg.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Bulletin of environmental contamination and toxicology 34 (1985), S. 730-735 
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Bulletin of environmental contamination and toxicology 35 (1985), S. 608-611 
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 322 (1985), S. 443-456 
    ISSN: 1434-601X
    Keywords: 25.70.−Z
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Secondary beams have been produced through interaction of a 1760 MeV Ar beam with a 99 mg/cm2 Be target. An achromatic spectrometer is used to select the magnetic rigidity corresponding to a given beam, and to transport this beam over a distance of about 18m. The beam purity is studied using a solid state ΔE-E telescope. Beams of38S and39Cl are produced with a purity of about 80%, and production rates of 1.5·10−6 I0 and 5·10−5 Io respectively. Here I0 denotes the primary beam intensity. Beams of38Ar,39Ar and41K are produced with about the same abundances as39Cl but with lower purities. It is shown that, by setting properly the experimental parameters, the beam production can be improved by a factor 2 to 5. This could lead to intensities of about 2·106 pps for38S, and of 107 to 108 pps for the four other beams. The possibility of purifying these beams by placing a degrader between the two dipoles of the spectrometer is shown experimentally.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Recoil techniques have been used for a systematic study of deeply inelastic transfer reactions induced in rare earth targets by40Ar,52Cr,56Fe and63Cu projectiles. The targets were separated isotopes of Eu, Sm, Nd and Pr. The residual nuclei149gTb,150Dy and151Dy were identified by their radioactive properties. The reactions studied involved the transfer of 3 to 7 charges from projectile to target. The c.m. angular and energy distributions were measured over the whole angular range from 0 to 180° (c.m.). A special device was used to measure accurately the c.m. energy of products emitted in the angular range 170–180° in the c.m.s. The c.m. angular distributions depend strongly on the ratio of the incident energy to the strong interaction barrier, and slightly on the number of transferred charges. The c.m. energy distributions are typical of completely damped collisions for 6-charge transfer reactions, and include a contribution of partially damped collisions for 4-charge transfer reactions. A kinematic analysis was used to determine the most probable number of neutrons transferred in the first reaction step with a given number of protons. The numbers found correspond to equilibration of the neutron to proton ratio in the composite system.
    Type of Medium: Electronic Resource
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