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  • 23.20.Lv  (2)
  • 21.60.-n  (1)
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  • 1
    Digitale Medien
    Digitale Medien
    β + ratio andβ-delayedγ-decay of146Eu (1988)
    Springer
    The European physical journal 329 (1988), S. 169-176 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 23.40.-s ; 23.20.Lv ; 27.60.+j ; A=146
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01283772
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Spin alignment of43Sc produced in the fragmentation of 500 MeV/u46Ti (1994)
    Springer
    The European physical journal 350 (1994), S. 215-219 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 25.70.Np ; 23.20.En ; 21.60.-n
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract In the fragmentation of 500 MeV/u46Ti the spin alignment of43mSc (I=19/2−, T1/2=473 ns) fragments was observed by the Time Dependent Perturbed Angular Distribution (TDPAD) method. The measurement was performed for different cuts in the longitudinal momentum distribution. A positive spin alignment of about 35% was observed in the center and a negative alignment of about 15% in the wing of the distribution. For the different cuts the relative production of the 19/2− state was measured. In the wing of the distribution the isomeric ratio N(19/2−)/total43Sc is about 15 times larger than in the center. The results of this pilot experiment are discussed in the frame of a shell-model.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01289585
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  • 3
    Digitale Medien
    Digitale Medien
    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
    Schlagwort(e): 23.20.Lv ; 23.40.−s ; 27.60.+j ; 27.70.+ q
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01294287
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