Coincidence measurements of the first excited state of 73Ge

1970 ◽  
Vol 48 (8) ◽  
pp. 930-934 ◽  
Author(s):  
D. G. Douglas
Keyword(s):  
Excited State ◽  
Half Life ◽  
Conversion Coefficient ◽  
Coincidence Measurement ◽  
First Excited State ◽  
Coincidence Measurements

A coincidence measurement of the K conversion coefficient of the 13.26 keV transition from the first excited state of 73Ge yields a result closer to the E2 theoretical value than that of an earlier less-precise measurement.The half-life of the level is found to be 2.95 ± 0.05 s in agreement with one of two disagreeing previous values.

EVIDENCE FOR THE FORMATION OF LONG-LIVED Bi208 BY THE (n, 2n) REACTION ON BISMUTH

1958 ◽  
Vol 36 (1) ◽  
pp. 18-24 ◽  
Author(s):  
J. C. Roy ◽  
T. A. Eastwood ◽  
R. C. Hawkings
Keyword(s):  
Excited State ◽  
Electron Capture ◽  
Half Life ◽  
First Excited State

Long-lived Bi208 has been observed through its decay by electron capture to the first excited state of Pb208 at 2.61 Mev. It has been produced by the (n, 2n) reaction on Bi209 in the NRX reactor. The half-life of Bi208 has been estimated to be 3 × 104 years, with an uncertainty of a factor of about 2.

scholarly journals New limit for the half-life of double beta decay of 94Zr to the first excited state of 94Mo

2017 ◽  
Vol 53 (4) ◽  
Author(s):  
N. Dokania ◽  
V. Nanal ◽  
G. Gupta ◽  
S. Pal ◽  
R. G. Pillay ◽  
...  
Keyword(s):  
Excited State ◽  
Beta Decay ◽  
Half Life ◽  
Double Beta Decay ◽  
First Excited State

Half-life of the first excited state in 143Pm

1968 ◽  
Vol 26 (9) ◽  
pp. 571-572 ◽  
Author(s):  
K. Heyde ◽  
M. Dorikens ◽  
J. Demuynck ◽  
D. De Frenne ◽  
J. Uyttenhove ◽  
...  
Keyword(s):  
Excited State ◽  
Half Life ◽  
First Excited State

Nuclear alinement of manganese-56

1959 ◽  
Vol 250 (1263) ◽  
pp. 550-561 ◽  
Keyword(s):  
Angular Distribution ◽  
Excited State ◽  
Angular Correlation ◽  
Excited States ◽  
Daughter Nucleus ◽  
Γ Radiation ◽  
Mixing Ratios ◽  
First Excited State ◽  
Γ Rays ◽  
Coincidence Measurements

The present work demonstrates the feasibility of alining manganese-56 produced by neutron irradiation of a nickel fluosilicate crystal containing stable 55 Mn. Measurements were made of the angular distribution of the γ-radiation from the alined 56 Mn and also of the angular correlation of the γ-rays from this isotope. By combining the results it is possible to establish uniquely as 2 the spins of the states of the daughter nucleus of 56 Fe at 2.66 and 2.98 MeV. The mixing ratios δ ( E 2/ M 1) for the 1.81 and 2.13 MeV γ-rays to the first excited state are shown to be 0.19 ± 0.02 and — 0.28 ± 0.02. The spectrum of the γ-radiation was studied with a scintillation spectrometer and this leads to the following relative intensities; 0.845 MeV (100%), 1.81 MeV (27 ± 3%), 2.13 MeV (15 ± 3%), 2.55 MeV (1.2 ± 0.2%), 2.66 MeV (0.65 ± 0.1%), 2.98 MeV (0.35 ± 0.1%) and 3.4 MeV (0.22 ± 0.05%). Coincidence measurements suggest that the 2.55 and 3.4 MeV γ-rays are due to de-excitation of a level at about 3.4 MeV which decays both to the ground and first excited states. A spin of 2 for this state is proposed.

Beta decay of 187W

1970 ◽  
Vol 48 (9) ◽  
pp. 1040-1054 ◽  
Author(s):  
A. W. Herman ◽  
E. A. Heighway ◽  
J. D. MacArthur
Keyword(s):  
Excited State ◽  
Beta Decay ◽  
Decay Scheme ◽  
Decay Energy ◽  
Beta Transition ◽  
Point Energy ◽  
Absolute Intensities ◽  
Gamma Coincidence ◽  
First Excited State ◽  
Coincidence Measurements

Coincidence studies have established in the decay scheme of,187W the existence of transitions of energy 7, 36, 77, 455, 589, and 639 keV with intensities of 3.0 ± 0.5%, 0.50 ± 0.06%, 0.31 ± 0.07%, 0.05 ± 0.02%, 0.14 ± 0.04%, and 0.05 ± 0.02% respectively as well as yielding the absolute intensities of the well-known transitions in 187Re. In addition the beta–gamma coincidence measurements have shown that (1) a first-forbidden unique transition feeds the first-excited state of 187Re, (2) there is at most a very weak beta transition to the level at 512 keV, (3) there is no inner beta group of about 300 keV end-point energy and intensity 8% as indicated by several earlier investigations, and (4) the decay energy of 187W to 187Re is 1311 ± 2 keV. The relevance of these observations to the structure of 187Re is discussed.

Measurement of the half-life of the first excited state ofPb205

1994 ◽  
Vol 50 (3) ◽  
pp. 1319-1320 ◽  
Author(s):  
Z. Krečak ◽  
M. Krčmar ◽  
A. Ljubičić ◽  
B. A. Logan ◽  
D. B. Isabelle ◽  
...  
Keyword(s):  
Excited State ◽  
Half Life ◽  
First Excited State

scholarly journals Half-life of the first excited state ofHg201

2007 ◽  
Vol 75 (6) ◽  
Author(s):  
V. Méot ◽  
J. Aupiais ◽  
P. Morel ◽  
G. Gosselin ◽  
F. Gobet ◽  
...  
Keyword(s):  
Excited State ◽  
Half Life ◽  
First Excited State

Internal-conversion coefficient determination of odd parity for the 108.8-keV first-excited state ofRb91

1975 ◽  
Vol 11 (4) ◽  
pp. 1455-1458 ◽  
Author(s):  
F. K. Wohn ◽  
W. L. Talbert ◽  
R. S. Weinbeck ◽  
M. D. Glascock ◽  
J. K. Halbig
Keyword(s):  
Excited State ◽  
Internal Conversion ◽  
Conversion Coefficient ◽  
Internal Conversion Coefficient ◽  
First Excited State

The half-life of the first excited state of Tl203

1960 ◽  
Vol 21 ◽  
pp. 393-396 ◽  
Author(s):  
E.C.B. Pederson ◽  
R.E. Bell
Keyword(s):  
Excited State ◽  
Half Life ◽  
First Excited State

scholarly journals The half-life of the first excited state of 111Cd

Physica ◽  
1955 ◽  
Vol 21 (6-10) ◽  
pp. 899-900 ◽  
Author(s):  
L.H.Th. Rietjens ◽  
H.J. Van den Bold ◽  
A. Heyligers
Keyword(s):  
Excited State ◽  
Half Life ◽  
First Excited State
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