The energy levels in 94Mo populated by the decays of 94Tc and 94Tcm

Hamilton, J. H.; Löbner, K. E. G.; Sattler, A.R.; Lieshout, R. Van

doi:10.1016/0031-8914(64)90037-0

Cited by 19 publications

(8 citation statements)

References 8 publications

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“…These investigators reported that the principal decay mode of this isomer was by electron capture and positron emission to a state a t 2440 keV in 94Mo which in turn deexcited via a triple cascade of y rays to the ground state. These early measurements were confirmed and extended by other workers (Matuszek and Sugihara 1963;Hamilton et al 1964;Boskova et al 1965). In particular, the accurate measurements of the positron spectrum end-point from both the 9 4 T~ isomers (Hamilton et al 1964) determined the 5 h 9 4 T~ activity as the ground state and the 52 min 9 4 T~ activity as the isomeric state.…”

Section: Introductionsupporting

confidence: 85%

“…These early measurements were confirmed and extended by other workers (Matuszek and Sugihara 1963;Hamilton et al 1964;Boskova et al 1965). In particular, the accurate measurements of the positron spectrum end-point from both the 9 4 T~ isomers (Hamilton et al 1964) determined the 5 h 9 4 T~ activity as the ground state and the 52 min 9 4 T~ activity as the isomeric state. The present study on the level structure characteristics of 94Mo through the decay of the 9 4 T~ isomeric pair was carried out essentially for the following reasons.…”

Section: Introductionsupporting

confidence: 85%

“…(see Hamilton et al 1964), indicate that the spin value of these levels is either 2' or 1 +. The absence of a crossover transition to the ground state of 94Mo from the 3400.9 keV level might suggest a 3' spin-parity assignment for this level.…”

Section: The 52 Nzi~z 9 4 T~m Isomeric State Decaymentioning

confidence: 96%

“…Furthermore the 765.83 keV ("Tc(20 h)) (Black and Heath 1967) and the 1460.75 keV (40K background) photopeaks (King et al 1967) were used as internal calibration points. The gamma-ray energies and intensities derived from these measurements are those listed in Table 11.…”

Section: /I) Decaymentioning

confidence: 99%

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Energy levels of excited in the decay of the ⁹⁴Tc^m,g isomeric pair

Barrette¹,

Boutard²,

Monaro³

1969

Can. J. Phys.

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The y-ray spectra resulting from the decay of the 9 4 T~m . s isomeric pair to the excited states of 94Mo have been investigated using Ge(Li) solid state detectors. Gamma rays (relative intensities are in parentheses) of 871.05 (100); 993.19(2.35); 1 196.4(0.80); 1522.1 (4.80): 1868.68(6.10); 2393.2(0.50); 2529.8(0.33); 2740.1r3.74): 3129.1r1.47): 3512.5(0.06): 3793.1(0.05): 3892.7(0.016): plus several other weak lines have been observed in the decav of "~~" ( 5 2 nlin). Gamma rays (relathe-intensities are in ~arentheses) of .3(0.68);1592.1(2.25); 1765.6(0.29) have been detected in the decay of 94Tc"5 h). To investigate this latter activity a hollow coaxial Ge(Li) spectrometer was aiso used as a well-type detector in order to obtain sum spectra of coincident gamma rays. The overall results obtained from this study allows construction of a level scheme of "Mo which compares fairly well with previous investigations and removes some inconsistencies shown in Coulomb excitation measurements.

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Section: Introductionsupporting

confidence: 85%

Section: Introductionsupporting

confidence: 85%

Section: The 52 Nzi~z 9 4 T~m Isomeric State Decaymentioning

confidence: 96%

Section: /I) Decaymentioning

confidence: 99%

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Energy levels of excited in the decay of the ⁹⁴Tc^m,g isomeric pair

Barrette¹,

Boutard²,

Monaro³

1969

Can. J. Phys.

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“…Although the level and decay scheme of 94Mo has been extensively studied [1][2][3][4][5][6][7][8][9][10][11], only very recently work concerning the properties of electromagnetic transitions has been reported [12,13]. Thus, Behar etal.…”

Section: Introductionmentioning

confidence: 94%

Properties of electromagnetic transitions from high-spin states in94Mo

et al. 1979

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The multipole mixing ratios of transitions from 6 + and 8 + states in 94Mo, following the decay of 94Tc, have been measured by means of 77 angular correlations. The spin of the 2423.4 keV state, being important for the interpretation of 7 cascades feeding this level, has been firmly established as 6 § by a method in which the angular correlation data are utilized in a non-conventional way. Furthermore, properties of electromagnetic transitions in 9aMo have been calculated in the shell model framework and are compared with the corresponding experimental quantities.

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