The Decay of <sup>144</sup>Ce

Potnis, V.R.; Agin, G. P.; Mandeville, C. E.

doi:10.1143/jpsj.29.539

Cited by 8 publications

(2 citation statements)

References 4 publications

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“…Coincidences from detector combinations with angles 8 2 120" were discarded. With these precautions taken, the zero-field data gave the result A 2 = -0.172 (12) and A, =0.021(34). The A, coefficient is zero within the error limits thus giving no indication of any scattering effects.…”

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confidence: 99%

The g-Factor of the 80.1 keV Level in ¹⁴⁴Pr

Bargholtz¹,

Beshai²,

Eriksson³

et al. 1975

Phys. Scr.

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The g-factor of the 80.1 keV level in 144Pr has been determined in an IPAC study of the 53.4-80.1 keV cascade. With an external magnetic field of 21.7(3) kG the precession angle ωτ was measured to be -0.045(12). The result g = -1.2(4) agrees well with that calculated in terms of coupling of the effective moments of the odd particles, g = -1.43(7). From the directional correlation of the 53.4-80.1 keV cascade the mixing ratio of the 53.4 keV transition was determined, δ(E2/M1) = 0.043(3).

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confidence: 99%

The g-Factor of the 80.1 keV Level in ¹⁴⁴Pr

Bargholtz¹,

Beshai²,

Eriksson³

et al. 1975

Phys. Scr.

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“…It can be seen that the present value and the revised value of Subba Rao are in good agreement with the theoretical values for pure El transitions. 1 "iR D. Relative Intensities of the 104-, 142-and 246-keV Gamma Rays in Eu The relative intensities of the 104-, 142-and 245-keV gamma rays from 155 the decay of 22 minute Sm have been reported with values differing by 45 percent and with errors of 10 percent or more(68)(69)(70)(71)(72)(73). The present in vestigation was undertaken to determine accurately the relative intensity of these gamma rays so they may be used to obtain the internal conversion coef ficients for these transitions.155 Analysis of the Eu gamma-ray spectrum 155 155 The level structure in the nucleus Eu following the decay of Sm is shown inFigure 33(32, p. 5-5-51, 1963).…”

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confidence: 99%

Measurements of some gamma-ray relative intensities and internal conversion coefficients using a bent-crystal monochromator

Nelson

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The X-ray and gamma-ray relative intensities were measured, from the decay of and Sm^^^ with a bent-crystal monochromator and a linear least-squares computer program. The K-shell internal conversion coefficients were determined for the E2 transitions in and Er. The K-shell conversion coefficient, for the 84.3-keV transition in Yb^^^ was determined to be 1.43±0.04 while the K-shell internal conver sion coefficient for the 80.6-keV transition in Er was determined to be 4* + 1.72±0.06. The results for these 2-K) transitions are five percent higher than the theoretical values for these transitions. From the relative inten-180 sities of the transitions in Hf it was possible to deduce a value for the 93 total internal conversion coefficient for the 93.3-keV transition of cy = 4.91±0.23. Using the previous measurements of conversion electron intensi ties of Edwards and Boehm and the present measured gamma-ray relative inten sities, internal conversion coefficients for all the other transitions were obtained. The present measurements of for the 215.3-, 332.5-and 443.8-keV E2 transitions are 11 percent lower than the theoretical values, while for the 93.3-keV E2 transition agrees closely with the theoretical value. These results are in close agreement with the previous measurements of Edwards and Boehm. The present valjie_for_a|^ for the 501-keV transition agrees closely with the theoretical for an E3 multipolarity. From the 1 CC X-ray and gamma-ray relative intensities of the transitions in Gd and the previous measurement of the ratio of K conversion electrons for the 86and 105-keV transitions of Subba Rao, it was possible to determine the K V conversion coefficients for the 86-and 105-keV transitions of «j, = 0.43 ±0.06 and = 0.23±0.03. These results are in agreement with the theo retical values for pure El transitions. The relative intensities of the 246-, 142-and 104-keV gamma rays following the decay of 22 minute were determined with improved precision in order that they might be used to determine accurately the conversion coefficients for these transitions.

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