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  • 1
    Electronic Resource
    Electronic Resource
    Half-life measurements of the 86.6 keV level in233Pa and 59.6 keV level in237Np (1971)
    Springer
    The European physical journal 244 (1971), S. 312-320 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The half-lives of the 86.6 keV level in233Pa and the 59.6 keV level in237Np have been measured. A silicon surface barrier alpha detector and a NaI(Tl) gammadetector were used. The decay time spectrum of alpha-gamma coincidences obtained from a start-stop type of time-to-pulse height converter was recorded on a 2048-channel analyser. Analysis of the data gave the following half-life values: $$\begin{gathered} T_{\frac{1}{2}} :^{233} Pa (86.6 keV level) = (37.4 \pm 0.4) ns \hfill \\ T_{\frac{1}{2}} :^{237} Np (59.6 keV level) = (66.7 \pm 0.7) ns \hfill \\ \end{gathered}$$ . Using the experimental levelT 1/2's, partial gamma-ray half-lives have been calculated for the 86.6- and the 29.6-keV transitions (from the 86.6 keV level) in233Pa and the 59.6- and the 26.36-keV transitions (from the 59.6 keV level) in237Np. The results are compared with the single particle and the Nilsson estimates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01396790
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Half-life measurements in59Co,141Pr and227Ac (1972)
    Springer
    The European physical journal 257 (1972), S. 124-136 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The half-lives of the 1291.6 keV level in59Co, 145.43 keV level in141Pr and 27.35 keV level in227Ac have been measured using leading edge and zero-crossover timing techniques. The decay curves analysed by moments, Laplace transform and slope methods gave the following half-life values: $$\begin{gathered} T_{\tfrac{1}{2}} (1291.6 keV level in {}^{59}Co) = (0.538 \pm 0.004) ns \hfill \\ T_{\tfrac{1}{2}} (145.43 keV level in {}^{141}\Pr ) = (1.82 \pm 0.04) ns \hfill \\ T_{\tfrac{1}{2}} (27.35 keV level in {}^{227}Ac) = (41.0 \pm 1.1) ns. \hfill \\ \end{gathered} $$ From the measured half-lives, the reduced transition probabilitiesB(M1)↓,B(E2)↓ for gamma transitions de-exciting the above mentioned levels in59Co and141Pr are determined and compared with single particle, intermediate coupling and Sorensen estimates. In227Ac, absolute transition probability for the 27.35 keV transition is determined and compared with single particle and Nilsson estimates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01403543
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Die Beziehungen zwischen den Umwandlungen des Fluors durch α-Teilchen (1938)
    Springer
    The European physical journal 110 (1938), S. 473-494 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Zusammenfassung Es wurden Parallelmessungen angestellt über die Anregungskurven der Protonen, Neutronen undγ-Strahlen, welche bei Beschießen von Fluor mit α-Strahlen entstehen. Aus den Resonanzenergien, den Anregungsgrenzen und der neu bestimmten Neutronenausbeute werden Schlüsse auf die Art und den Ablauf der zugrunde liegenden Kernreaktionen gezogen. Die Ergebnisse sind am Schluß zusammengestellt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01343607
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Die β—γ-Kopplung beim radioaktiven33As76 (1939)
    Springer
    Naturwissenschaften 27 (1939), S. 786-786 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01498340
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    Paper (German National Licenses)
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