A. A. Shihab-Eldin
Lawrence Berkeley National Laboratory
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Featured researches published by A. A. Shihab-Eldin.
European Physical Journal A | 1989
R. M. Chasteler; J. M. Nitschke; R. B. Firestone; K. S. Vierinen; P. A. Wilmarth; A. A. Shihab-Eldin
The heaviest known erbium isotope, 3.3(2) min.174Er, has been identified using on- line isotope separation and by ß and γ- ray spectroscopy. Twelve γ rays were placed in a preliminary decay scheme. The mass of the new isotope was established by the separator and the Z was deduced from Tm K x ray coincident ß and γ rays. In addition, the heaviest known isotope of holmium171Ho was observed with a half-life of 49(5) s.
Physical Review C | 1988
K. S. Vierinen; A. A. Shihab-Eldin; J.M. Nitschke; P. A. Wilmarth; R. M. Chasteler; R. B. Firestone; K. S. Toth
Using mass-separated sources, the ..beta..-decay properties of /sup 154/Lu and /sup 154/Yb were investigated. Limits of /sup 154/Lu decay to the first 8/sup +/ and 6/sup +/ levels in /sup 154/Yb suggest a 7/sup +/ spin for the odd-odd parent; also delayed proton emission and an indication of delayed ..cap alpha..-particle emission were observed to follow /sup 154/Lu ..beta.. decay. The ..beta..-decay branch of the ..cap alpha..-emitting nucleus /sup 154/Yb was identified for the first time by the observation of one intense 133.2-keV ..gamma.. ray. This transition deexcites a 1/sup +/ 133.2-keV level in /sup 154/Tm which is fed by an allowed 0/sup +/..-->..1/sup +/..beta.. transition with a logft value of 3.6 +- 0.3.
Physical Review C | 1988
K. S. Vierinen; A. A. Shihab-Eldin; J. M. Nitschke; P. A. Wilmarth; R. M. Chasteler; R. B. Firestone; K. S. Toth
Using mass-separated sources, the ..beta..-decay properties of /sup 154/Lu and /sup 154/Yb were investigated. Limits of /sup 154/Lu decay to the first 8/sup +/ and 6/sup +/ levels in /sup 154/Yb suggest a 7/sup +/ spin for the odd-odd parent; also delayed proton emission and an indication of delayed ..cap alpha..-particle emission were observed to follow /sup 154/Lu ..beta.. decay. The ..beta..-decay branch of the ..cap alpha..-emitting nucleus /sup 154/Yb was identified for the first time by the observation of one intense 133.2-keV ..gamma.. ray. This transition deexcites a 1/sup +/ 133.2-keV level in /sup 154/Tm which is fed by an allowed 0/sup +/..-->..1/sup +/..beta.. transition with a logft value of 3.6 +- 0.3.
Physical Review C | 1988
K. S. Vierinen; A. A. Shihab-Eldin; J.M. Nitschke; P. A. Wilmarth; R. M. Chasteler; R. B. Firestone; K. S. Toth
Using mass-separated sources, the ..beta..-decay properties of /sup 154/Lu and /sup 154/Yb were investigated. Limits of /sup 154/Lu decay to the first 8/sup +/ and 6/sup +/ levels in /sup 154/Yb suggest a 7/sup +/ spin for the odd-odd parent; also delayed proton emission and an indication of delayed ..cap alpha..-particle emission were observed to follow /sup 154/Lu ..beta.. decay. The ..beta..-decay branch of the ..cap alpha..-emitting nucleus /sup 154/Yb was identified for the first time by the observation of one intense 133.2-keV ..gamma.. ray. This transition deexcites a 1/sup +/ 133.2-keV level in /sup 154/Tm which is fed by an allowed 0/sup +/..-->..1/sup +/..beta.. transition with a logft value of 3.6 +- 0.3.
Physical Review C | 1988
K. S. Vierinen; A. A. Shihab-Eldin; J. M. Nitschke; P. A. Wilmarth; R. M. Chasteler; R. B. Firestone; K. S. Toth
Using mass-separated sources, the ..beta..-decay properties of /sup 154/Lu and /sup 154/Yb were investigated. Limits of /sup 154/Lu decay to the first 8/sup +/ and 6/sup +/ levels in /sup 154/Yb suggest a 7/sup +/ spin for the odd-odd parent; also delayed proton emission and an indication of delayed ..cap alpha..-particle emission were observed to follow /sup 154/Lu ..beta.. decay. The ..beta..-decay branch of the ..cap alpha..-emitting nucleus /sup 154/Yb was identified for the first time by the observation of one intense 133.2-keV ..gamma.. ray. This transition deexcites a 1/sup +/ 133.2-keV level in /sup 154/Tm which is fed by an allowed 0/sup +/..-->..1/sup +/..beta.. transition with a logft value of 3.6 +- 0.3.
Physical Review C | 1989
M. O. Kortelahti; K. S. Toth; K. S. Vierinen; J. M. Nitschke; P. A. Wilmarth; R. B. Firestone; R. M. Chasteler; A. A. Shihab-Eldin
Physical Review C | 1988
K. S. Vierinen; A. A. Shihab-Eldin; J.M. Nitschke; P. A. Wilmarth; R. M. Chasteler; R. B. Firestone; K. S. Toth
Physical Review C | 1989
K. S. Vierinen; J. M. Nitschke; P. A. Wilmarth; R. M. Chasteler; A. A. Shihab-Eldin; R. B. Firestone; K. S. Toth; Y.A. Akovali
Physical Review C | 1993
H. Bossy; J. Bistirlich; R. Bossingham; Chacon Ad; K.M. Crowe; Y. X. Dardenne; M. Justice; J. O. Rasmussen; A. A. Shihab-Eldin; Stoyer Ma; Wyatt Kd; J. P. Sullivan; K. Wolf
Physical Review C | 1994
Y. X. Dardenne; W. M. McHarris; J. A. Bistirlich; R. Bossingham; H. Bossy; T. Case; A. D. Chacon; K. Crowe; A. A. Shihab-Eldin; J. Friedrich; J. O. Rasmussen; Stoyer Ma
