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  • 27.60.+j  (3)
  • 23.40.-s  (2)
  • 1
    Electronic Resource
    Electronic Resource
    β + ratio andβ-delayedγ-decay of146Eu (1988)
    Springer
    The European physical journal 329 (1988), S. 169-176 
    Details
    ISSN: 1434-601X
    Keywords: 23.40.-s ; 23.20.Lv ; 27.60.+j ; A=146
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The positron decay of146Eu was investigated, firstly to derive for the allowed transition to the 2046 keV state in146Sm the electron capture to positron decay ratio. The experimental valueEC/β +=43.7(42) is found to be in agreement within the respective error intervals with the ones calculated from the formalism of allowed decay using the recentQ-values of146Eu. Further on, theγ-decay properties of146Eu have been reinvestigated with emphasis on implied modifications of the hitherto accepted decay scheme: 42 new levels and 33 newγ-transitions were placed in the revised level scheme, 12 of the previously reported levels were deleted. The level distribution of146Sm is discussed within a statistical model. The indication for a non-statisticalβ-strength function is observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01283772
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    β-Delayed neutron emission of15B,18C,19,20N,34,35Al and39P (1988)
    Springer
    The European physical journal 330 (1988), S. 63-68 
    Details
    ISSN: 1434-601X
    Keywords: 25.70.Np ; 23.40.-s ; 27.30.+ t
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The isotopes15B,18C,19,20N,34,35Al and39P have been produced as projectile-like fragments from the interaction of a86Kr beam of 45 MeV/u from GANIL with a181Ta target. Separated by the 0° magnetic analyser LISE, the nuclei are identified by means of aΔE- E semiconductor telescope. It is surrounded, in a geometry close to 4π, by a thin plastic scintillator (NE 102) and a large volume liquid scintillator (NE 213) for the detection of betas and neutrons, respectively, from the decay of the implanted nuclei. By observation of theβ-delayed neutrons, the half-livesT 1/2 and neutron emission probabilitiesP n have been measured. TheT 1/2 of18C,20N,35Al,39P and Pn of18C,19,20N,34,35Al and39P are determined for the first time. For the isotopes17C,36,37Si and38P upper limits of Pn are deduced.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01287265
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Beta-delayed gammas and QEC-values in the decays of150m,152mHo and149Dy (1990)
    Springer
    The European physical journal 337 (1990), S. 161-168 
    Details
    ISSN: 1434-601X
    Keywords: 23.20.Lv ; 23.40.−s ; 27.60.+j ; 27.70.+ q
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract 150m, 152mHo, and149Dy were produced by fusion-evaporation reactions of40Ar with targets of natural indium and114Cd. Theβ-decays of the isotopes were reinvestigated with emphasis on high-excitation daughter states. The decay energies for selectedβ-transitions were measured from electron-capture to positron-decay ratios. Corrections forγ-feeding from higher-lying states were taken into account. The following QEC-values were derived for150mHo,152mHo, and149mDy of 6819 ( −100 +117 , 6263 ( −80 +89 ), and 3914 ( −52 +76 ) keV, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01294287
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  • 4
    Electronic Resource
    Electronic Resource
    Beta-decay energy and atomic mass of148Tb (1995)
    Springer
    The European physical journal 352 (1995), S. 1-2 
    Details
    ISSN: 1434-601X
    Keywords: 21.10.Dr ; 27.60.+j
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The Q EC values of the $${}^{148}Tb_{2^ - } $$ ground-state and the $${}^{148}Tb_{9^ + } $$ isomer were measured to the 5750(40) keV and 5846(50) keV, respectively, corresponding to a148Tb ground-state mass-excess of ⦓70527(30) keV. The impact on mass calculations near146Gd is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01292750
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    Paper (German National Licenses)
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