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Featured researches published by D. Otero.


Physical Review C | 1981

Level scheme ofCs140

D. Otero; A. N. Proto; E. Duering; M.L. Perez

Biparametric coincidence techniques using low energy photon spectrometer detectors have been used in order to determine energies, intensities, conversion coefficients, and placements of transitions in the level scheme here proposed for /sup 140/Cs. A new 9.4 keV (I/sub ..gamma../<0.7%) ..gamma.. ray has been found and a doublet character for 38 keV (38.34 keV (I/sub ..gamma../ = 0.9 +- 0.2 %) and 38.33 keV (I/sub ..gamma../ = 0.1 +- 0.1 %)) has been established. Ten internal conversion coefficients were measured; three of them, as well as six additional K/L relations, have not been reported previously. Spin and parity assignments were made for 25 levels, based on our assigned multipolarities and logft values.


Physical Review C | 1981

Level scheme of Cs-140

D. Otero; M.L. Perez; A. N. Proto; E. Duering

Biparametric coincidence techniques using low energy photon spectrometer detectors have been used in order to determine energies, intensities, conversion coefficients, and placements of transitions in the level scheme here proposed for /sup 140/Cs. A new 9.4 keV (I/sub ..gamma../<0.7%) ..gamma.. ray has been found and a doublet character for 38 keV (38.34 keV (I/sub ..gamma../ = 0.9 +- 0.2 %) and 38.33 keV (I/sub ..gamma../ = 0.1 +- 0.1 %)) has been established. Ten internal conversion coefficients were measured; three of them, as well as six additional K/L relations, have not been reported previously. Spin and parity assignments were made for 25 levels, based on our assigned multipolarities and logft values.


Physical Review C | 1981

Level scheme of /sup 140/Cs

D. Otero; A. N. Proto; E. Duering; M.L. Perez

Biparametric coincidence techniques using low energy photon spectrometer detectors have been used in order to determine energies, intensities, conversion coefficients, and placements of transitions in the level scheme here proposed for /sup 140/Cs. A new 9.4 keV (I/sub ..gamma../<0.7%) ..gamma.. ray has been found and a doublet character for 38 keV (38.34 keV (I/sub ..gamma../ = 0.9 +- 0.2 %) and 38.33 keV (I/sub ..gamma../ = 0.1 +- 0.1 %)) has been established. Ten internal conversion coefficients were measured; three of them, as well as six additional K/L relations, have not been reported previously. Spin and parity assignments were made for 25 levels, based on our assigned multipolarities and logft values.


Physical Review C | 1972

Conversion-Coefficient Measurements and Spin-Parity Assignments for Excited Levels in Xe 1 3 3 , 1 3 5 , 1 3 6 , Cs 1 3 5 , 1 3 7 , 1 3 9 , and Ba 138

E. Achterberg; F. C. Iglesias; A. E. Jech; J. A. Moragues; D. Otero; M.L. Perez; A. N. Proto; J. J. Rossi; W. Scheuer; J. F. Suarez


Physical Review C | 1972

Conversion-Coefficient Measurements and Spin-Parity Assignments for Excited Levels in Xe-133, Xe-135, Xe-136, Cs-135, Cs-137, Cs-139, and Ba-138

E. Achterberg; J. F. Suarez; D. Otero; A. N. Proto; M.L. Perez; F. C. Iglesias; J. J. Rossi; A. E. Jech; W. Scheuer; J. A. Moragues


Physical Review C | 1974

Levels ofRb93,Sr93, andY93fed in the decays ofKr93,Rb93, andSr93

E. Achterberg; F. C. Iglesias; A. E. Jech; J. A. Moragues; D. Otero; M.L. Perez; A. N. Proto; J. J. Rossi; W. Scheuer


Physical Review C | 1976

Levels of 141Cs and 141Ba from the decays of 141Xe and 141Cs

D. Otero; A. N. Proto; F. C. Iglesias


Physical Review C | 1974

Levels of Rb-91 and Sr-91 fed in the decays of Kr-91 and Rb-91

E. Achterberg; F. C. Iglesias; A. E. Jech; J. A. Moragues; D. Otero; M.L. Perez; A. N. Proto; J. J. Rossi; W. Scheuer


Physical Review C | 1971

On-Line Spectroscopy of I 1 3 4 m , g

E. Achterberg; E.Y. de Aisenberg; F. C. Iglesias; A. E. Jech; J. A. Moragues; D. Otero; M.L. Perez; A. N. Proto; J. J. Rossi; W. Scheuer; J. F. Suarez


Physical Review C | 1976

Levels ofCs141andBa141from the decays ofXe141andCs141

D. Otero; A. N. Proto; F. C. Iglesias

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