Transition Energies and Nuclear Levels in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">Sm</mml:mi></mml:mrow><mml:mrow><mml:mn>152</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">Sm</mml:mi></mml:mrow><mml:mrow><mml:mn>154</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>,<mml:math

Cork, J. M.; Brice, M. K.; Helmer, R.G.; Sarason, D.E.

doi:10.1103/physrev.107.1621

Cited by 31 publications

(4 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…k~v :. : and not 59.9 kev, 41.6 kev i s j u s t t h e r i g h t t r a n s i t i o n energy-wise from t h e 5 9 . 9 -, t o the 18.8-kev l e v e l .…”

Section: 8-kev T R a N S I T I O N ~U R I N G T H E F I R S T mentioning

confidence: 95%

COINCIDENCE NUCLEAR SPECTROMETRY WITH APPLICATIONS TO EUROPIUM-154 AND EUROPIUM-155 (thesis)

Juliano¹

1957

View full text Add to dashboard Cite

“…k~v :. : and not 59.9 kev, 41.6 kev i s j u s t t h e r i g h t t r a n s i t i o n energy-wise from t h e 5 9 . 9 -, t o the 18.8-kev l e v e l .…”

Section: 8-kev T R a N S I T I O N ~U R I N G T H E F I R S T mentioning

confidence: 95%

COINCIDENCE NUCLEAR SPECTROMETRY WITH APPLICATIONS TO EUROPIUM-154 AND EUROPIUM-155 (thesis)

Juliano¹

1957

View full text Add to dashboard Cite

“…It is a little surprising that the log(jft) values for all inner 0-ray groups of both Eu nuclei are larger than 9. 31 We may understand this fact by assuming the perturbation effect for the K forbiddenness. Therefore, quantitative results for each observable should be characterized by the modified B^ approximation with V=0, e.g., set (II).…”

Section: W (Mc 2 )mentioning

confidence: 99%

Deviation from theξApproximation in First ForbiddenβDecay

Kotani

1959

Phys. Rev.

178

View full text Add to dashboard Cite

The failure of the £ approximation in which only the first nonvanishing term is kept in the expansion in descending powers of the Coulomb energy factor is due to either the cancellation or selection rule effect. The latter may be due to K or j forbiddennesses. In order to distinguish these three possibilities experimentally, the two transitions, 3(/3)2(7)0 and 2 (18)2(7)0, are discussed. The present data on Sb 124 and Rb 86 are insufficient to permit drawing a definite conclusion. Similar arguments can be extended to other (3 decays. To get more information, the general energy and angular dependences are given in convenient form for various observables, and are shown numerically for Sb 124 . Certain (3-7 correlation experiments, especially the j3-circularly polarized 7 correlation and the transverse 0 polarization, are proposed for a variety of special /3 decays, e.g., Ga 72 , Y 92 , and so on. It is also concluded that the unique shape energy spectrum does not necessarily correspond to a unique forbidden transition. An example is Eu 152 . Measurements of /3-7 correlations are useful in order to decide this correspondence. Other jS decays, which may be characterized by the cancellation, are Ag 111 , Re 186 , and Tm 170 .

show abstract

“…A level at 1·82 MeV was suggested by Cork et al (1957) because, in an investigation of the decay of 154Eu, they found a ~-transition with an end point of 150 keY. They estimated the abundances of ~-transitions to the 1·82 and.…”

mentioning

confidence: 99%

“…However, Way et al (1959) suggest that the 150 keY transition occurs in the decay of 155Eu. Cork et al (1957) also suggested that the 1·82 MeV level de-excites by a 694 keY y-transition. Toth and Rasmussen (1959) also detected a y-ray of 692 keY in the decay of 154 Tb; and they recalculated the energy of an intense y-transition, detected by Juliano and Stephens (1957), from fission-produced 154Eu in which 152Eu was absent.…”

mentioning

confidence: 99%

Sum?Coincidence Measurements on 154Eu

Parker¹

1961

Aust. J. Phys.

View full text Add to dashboard Cite

SummaryBy examining y-rays from the radioisotope 154Eu with a fast-slow sum-coincidence spectrometer any ('I-transition to a possible 1· 82 MeV level in 154Gd has been shown to have an abundance less than 1 % of that of the ('I-transition to the neighbouring 1· 72 MeV level. The presence of a 1· 60 MeV y-ray from the 1· 72 MeV level is confirmed; the intensity of this y-ray was found to be 6·4 % of that of the 1· 28 MeV y-ray.

show abstract

Transition Energies and Nuclear Levels inSm152,Sm154,

Cited by 31 publications

References 6 publications

COINCIDENCE NUCLEAR SPECTROMETRY WITH APPLICATIONS TO EUROPIUM-154 AND EUROPIUM-155 (thesis)

COINCIDENCE NUCLEAR SPECTROMETRY WITH APPLICATIONS TO EUROPIUM-154 AND EUROPIUM-155 (thesis)

Deviation from theξApproximation in First ForbiddenβDecay

Sum?Coincidence Measurements on 154Eu

Contact Info

Product

Resources

About