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  • 1995-1999
  • 1965-1969  (5)
  • 1968  (3)
  • 1966  (2)
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  • 1995-1999
  • 1965-1969  (5)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Der Zerfall des In109m (0,21 sec) (1966)
    Springer
    The European physical journal 192 (1966), S. 351-357 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In109m(0,21±0,01 sec) was produced from natural Ag and enriched Ag107 byα irradiation and investigated using scintillation spectrometers and coincidence techniques. The mass assignment follows from the excitation function for the (α, 2n) reaction on Ag107. The following results were obtained: energy of the isomeric level (2,11±0,02) MeV, determined directly by summing up the cascade transitions in a well-type scintillator; four gamma transitions with energies (0,680±0,015) MeV, (0,405±0,015) MeV, (1,035±0,030) MeV and (1,435±0,020) MeV, respectively. The proposed decay scheme contains the isomeric level (19/2+) at 2,11 MeV and a further level (13/2+) at 1,435 MeV which decays either by the 1,435 MeV transition (80±3)% or by a 0,405–1,035 MeV cascade (20±3)% via an (11/2+) level at 1,035 MeV to the 9/2+-ground state of In109.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01325673
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Isomerenverhältnisse für die Reaktionen107Ag(α,2n)109g,mIn und109Ag(α,2n)111g,mIn (1968)
    Springer
    The European physical journal 214 (1968), S. 437-446 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Isomeric cross-section ratios have been measured for the reactions107Ag(α,2n)109g,mIn and109Ag(α, 2n)111g,mIn for energies of theα-particles between 19 and 40 MeV. The experimental isomeric cross-section ratios are compared with statistical-model calculations. The program ofHafner et al. was extended by including the competition of the (α,n)- and (α, 3n)-reactions and of charged particle emission. Agreement between experiment and theory could be achieved.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01449047
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Der Zerfall des125m Xe, des127m Xe und des127g Xe (1968)
    Springer
    The European physical journal 217 (1968), S. 282-293 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The decay of125m Xe produced by the reaction122Te(α, n)125m Xe using a target enriched in122Te (95.4%) and the decay of127m Xe produced by the reaction127J(d, 2n)127m Xe have been investigated: 125m Xe decays with a half-life ofT 1/2=(56±3) sec by ayy- cascade withE γ1=(140.4 ±0.5) keV andE γ2=(110.5 ±0.5) keV. The experimental conversion coefficients yield multipolarities ofE3 for the 140.4 keV isomeric transition and predominantlyM1 for the 110.5 keV-transition. 127m Xe decays with a half-life ofT 1/2=(71±2) sec. The decay also proceeds by aγγ-cascade with an isomeric E3 transition ofE γ1=(172.5±0.3) keV and a predominantlyM1 transition ofE γ2=(124.6±0.3) keV. In the decay of127g Xe an additional branching of the electron capture to a level at (618.1±0.3) keV was observed. The relative probability forK-captureP K618/PK375=0.40 ±0.07 yields a total transition energyQ EC=(664 ±4)keV. A spin of 1/2+ was assigned to the ground state.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01394102
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Zur Isomerie des Au197 (1966)
    Springer
    The European physical journal 191 (1966), S. 1-9 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Au197m was produced from Au by fast neutron irradiation and investigated using scintillation and semiconductor gamma spectrometers. The following results were obtained: Half-lifeT 1/2=(7,5± 0,2) sec; conversion coefficients of the 130,5 keV isomeric transition:α K130.5=0,9±0,3 andα tot130,5=28 ± 4, indicating anE3 multipolarity. Conversion coefficients of the subsequent 278,5 keV transition:α K278,5=0,32±0,04 andα tot278,5=0,44±0,10. This transition was identified asM1 with anE2 admixture of (13± 13)%. The 278,5 keV level decays either by this transition (98,5%) or by a 202 keV- 77 keV cascade (1,5%). The experimental gamma transition probabilities are in reasonable agreement with the theoretical values calculated from the model ofKisslinger andSorensen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01362464
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Suche nach dem Einfluß der chemischen Bindung auf die Halbwertszeit des90m Nb (T 1/2=19,2 sec) (1968)
    Springer
    The European physical journal 209 (1968), S. 289-294 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract 90m Nb was produced by the reaction90Zr(d, 2n). Comparison of its half-lives in two different chemical environments (Nb atoms in metallic Zr and in the niobium-fluoride complex) showed no difference greater than the experimental error of 1%, whileCooper et al. have reported that the half-life of90m Nb nuclei is shorter by 3.6% in metallic Nb than in the niobium-fluoride complex. — In addition, the absolute value of the half-life of90m Nb in metallic Zr was determined to beT 1/2=(19.2±0.3) sec.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01380076
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    Paper (German National Licenses)
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