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  • 1
    Electronic Resource
    Electronic Resource
    Half-life measurements of intrinsic states in deformed odd-mass nuclei (1968)
    Springer
    The European physical journal 216 (1968), S. 372-397 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The half-lives of the following intrinsic states in deformed odd-mass nuclei has been measured by delayed coincidences with a time-to-amplitude converter: (1) 5/2 5/2+[642] at 86.5 keV in155Gd:T 1/2=6.7±0.3 ns, which results in the determination of theE1,ΔK=1 transition probability to the ground state 3/2 3/2−[521] and first rotational state 5/2 3/2−[521], yielding hindrance factors ofF N ≈5.5 and ≈1.8 (F W =3.1×104 and 2.3×104) respectively. (2) (3) 5/2 5/2−[512] at 191.4 keV in169Yb:T 1/2=3.35±0.15 ns and at 122.39 keV in171Yb:T 1/2=265±20 ns which results in the determination of the transition probabilities of theE1,ΔK=1 transitions to the ground states 7/2 7/2+[633], of theK-forbiddenM1 transitions to the 5/2 and 3/2 1/2−[521] and of theE2 transitions to the 5/2, 3/2 and 1/2 1/2−[521] states in both nuclei. TheE1 transition probabilities are compared to the transitions between the same Nilsson states in173Yb and175Hf discussing the influence of the position of the Fermi surface — obtained from recent stripping and pick-up reactions — on these transition probabilities. Additional information on the decay scheme of171Lu→171Yb is obtained by delayed coincidence measurements. For testing the used time-to-amplitude converter the well known half-lives of the 482 keV level in181Ta (T 1/2=10.4±0.3 ns) and of the 279 keV level in203Tl (T 1/2=0.285 ±0.015 ns) were measured, in good agreement with other measurements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01391531
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  • 2
    Electronic Resource
    Electronic Resource
    Decay energy of183Re→183W (1969)
    Springer
    The European physical journal 222 (1969), S. 144-154 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The electron capture decay energy of183Re has been determined from the fraction ofK-capture in the transition to the 453.08 keV level in183W by delayed coincidences. From this value the total decay energy from183Re→183W is obtained to beQ=555 −7 +9 keV according to the theory ofBrysk andRose with corrections ofBahcall. The resulting logft values and consequences for the decay scheme are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01392292
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  • 3
    Electronic Resource
    Electronic Resource
    The spin of the 1029 keV level in200Hg (1969)
    Springer
    The European physical journal 226 (1969), S. 13-16 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The spin of the 1,029 keV level in200Hg has been determined to be 0 through measurements of theγ-γ-angular correlation of the 661 keV and 368 keVγ-rays following slow neutron capture in199Hg. The upper limit for theγ-intensity ratioIγ(1,029 keV)/Iγ(661 keV) obtained from the curved crystal spectrometer (n, γ)-data is much lower than the ratio found during the200Tl→200Hg decay studies. This implies that the 1,029 keVγ-line seen in the decay work does not lead from the 1,029 keV level to the ground state in200Hg, but that it depopulates a level which is only weakly fed through the (n, γ)-process.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01392780
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  • 4
    Electronic Resource
    Electronic Resource
    Half-life measurements and gamma spectroscopy in the decay184Re m →184W (1969)
    Springer
    The European physical journal 227 (1969), S. 83-98 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The half-lives of the intrinsic states at 1,285.8 and 1,502.2 keV in184W have been measured in the decay of184Re m to be 8.33±0.18Μs and 2.35±0.10 ns, respectively. These half-lives determine absolute gamma-ray transition probabilities of eight transitions and yield upper limits for three transitions. The decay scheme of184Re m →184W is improved through measurements of delayed gamma-ray spectra with a Ge(Li) detector. Spin and Nilsson model interpretations are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01396683
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  • 5
    Electronic Resource
    Electronic Resource
    Level scheme of198Au from γ-γ-coincidence measurements (1970)
    Springer
    The European physical journal 235 (1970), S. 254-262 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Prompt and delayed low energyγ-γ-coincidences from the197Au(n, γ)198Au reaction have been measured with Ge(Li) and NaI(Tl) detectors at the external neutron beam of the research reactor (FRM) near Munich. A level scheme consistent with all available experimental data is constructed and discussed. The half-life of the 367.29 keV level was obtained with a time-to-amplitude converter to be 123 ± 4 ns. It determines the absolute transition probability of the 97.211 keVE1 transition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01394845
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  • 6
    Electronic Resource
    Electronic Resource
    Properties of unbound high-spin states in27Al (1984)
    Springer
    The European physical journal 319 (1984), S. 67-80 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Selectively excited high-spin states in27Al have been located by the reaction12C(16O,p)27Al. The excitation functions of these states have been measured at incident energiesE cm=18.7 to 30.1 MeV at intervals of 150 keV. They exhibit maxima of presumably non-statistical origin. At four different energies the subsequent decay of the27Al states has been studied by detecting the final heavy recoils with the Munich recoil spectrometer in coincidence with the proton emitted in the first stage of the reaction. Using this new method branching ratios of theγ-, α-, andn-decay have been measured. Based on angular correlation arguments spins up to 27/2ħ have been determined within the experimental accuracy of 1–2ħ. The observations suggest a superdeformed shape of27Al at least in some of the states.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01429769
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  • 7
    Electronic Resource
    Electronic Resource
    Isomeric state at 945.3 keV in237Np (1990)
    Springer
    The European physical journal 337 (1990), S. 371-375 
    Details
    ISSN: 1434-601X
    Keywords: 21.10.Hw ; 23.20.Ck+Lv ; 27.90.+b
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A new isomeric state in237Np has been discovered at an excitation energy of (945.3±0.2) keV withT 1/2 =(711±40) ns. Six gamma-ray lines have been measured depopulating the isomeric state to known levels in237Np. The comparison of the measured absolute gamma-ray transition probabilities with empirical values yields as most probable spinI andK assignmentI=K=13/2 for this isomeric state. It is most likely a 1-proton-2-neutron quasiparticle state 13/2−π5/2+ [642] +ν7/2− [743] + ν 1/2+ [631]. However, a one-quasiparticle 11/2− [505] configuration for the isomer cannot be excluded.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01294973
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  • 8
    Electronic Resource
    Electronic Resource
    E1-M2-E3 mixing of the 1241.7 keV transition in147Yb (1974)
    Springer
    The European physical journal 269 (1974), S. 407-409 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The half-life of theI,K π=2, 2− state at 1318 keV in174Yb has been measured in the173Yb(n, γ) reaction to be 0.486±0.015 ns. This half-life determines the absolute transition probabilities of the gamma-ray transitions to the ground state rotational band yielding the following hindrance factors relative to the Weisskopf estimate:F W(M 2; 2, 2−→0, 0+)=350;F W(M2; 2, 2−→2, 0+)≧77F W(M 2;2, 2−→4, 0+)〉740;F W(E 1; 2, 2−→2, 0+)=4.5×106;F W(E 3; 2, 2−→2, 0+)≈0.1;F W(E 3; 2, 2−→4, 0+)≈0.4. These data are compared to analogous transitions in neighboring nuclei.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01668614
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  • 9
    Electronic Resource
    Electronic Resource
    The nuclear structure of198Au from the reaction197Au(n, γ)198Au (1975)
    Springer
    The European physical journal 272 (1975), S. 175-187 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Precise energies and intensities of about 450γ-rays of the197Au(n, γ)198Au reaction have been investigated in the energy range from 30 keV to 1 MeV with a bentcrystal spectrometer. Prompt and delayedγ-γ coincidences have been studied with Ge(Li) detectors. A half-life of 124±4 ns has been measured for the state at 312.036 keV, which is found to decay to the ground state through the cascade 97.195–214.841 keV. A new level scheme based on these results has been constructed which contains 160 transitions. Spin and parity assignments have been made for most of the levels.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01408145
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  • 10
    Electronic Resource
    Electronic Resource
    Nuclear structure of low-lying 0+ states in Ge and Se isotopes (1975)
    Springer
    The European physical journal 274 (1975), S. 251-257 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The following meanlives of levels in72Se have been measured using the recoildistance Doppler-shift method:Τ(2+, 862 keV)=3.1±0.6 ps,Τ(2+′, 1317 keV)=12.5±2.6 ps,Τ(4+, 1638 keV)=1.2±0.3 ps andΤ(6+, 2469 keV)≦0.7 ps. These meanlives yield sixB(E2) values which are discussed together with the known data of the depopulation of the excited 0+′ state at 937 keV. Systematics of 0+′ states in the mass region 70≲A≲100 show that the low excitation energy of the 0+′ states is correlated with subshell closures. This suggests that the previous interpretation of the 0+′ state in72Se as a rotational band head is questionable.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01437737
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