Gamma-Ray Angular Distribution in Coulomb Excitation

1956 ◽  
Vol 101 (5) ◽  
pp. 1504-1507 ◽  
Author(s):  
G. Breit ◽  
M. E. Ebel ◽  
J. E. Russell
Keyword(s):  
Angular Distribution ◽  
Gamma Ray ◽  
Coulomb Excitation

Coulomb excitation of 133Cs with protons

1985 ◽  
Vol 63 (4) ◽  
pp. 483-487 ◽  
Author(s):  
K. P. Singh ◽  
D. C. Tayal ◽  
B. K. Arora ◽  
T. S. Cheema ◽  
H. S. Hans
Keyword(s):  
Angular Distribution ◽  
Gamma Ray ◽  
Transition Probabilities ◽  
Coulomb Excitation ◽  
Spin Assignment ◽  
Thick Target ◽  
Angular Distributions ◽  
Distribution Data ◽  
Mixing Ratios ◽  
Reduced Transition Probabilities

Protons of energy 3.2–4.2 MeV have been used to Coulomb excite the states in 133Cs. The thick-target gamma-ray yields and the angular distributions were measured using a 50 cm3 Ge(Li) detector. The measurements were used to extract the reduced transition probabilities, B (E2) and B(M1), and multipole mixing ratios (δ) for the various transitions. A spin assignment has been made to the 871.8 keV level on the basis of angular distribution data. The results obtained have been compared with those of other authors.

Investigation of level properties of 139La

1979 ◽  
Vol 57 (11) ◽  
pp. 1940-1948 ◽  
Author(s):  
R. G. Kulkarni ◽  
K. Andhradev
Keyword(s):  
Angular Distribution ◽  
Excited States ◽  
Gamma Ray ◽  
Transition Probabilities ◽  
Coulomb Excitation ◽  
Theoretical Calculations ◽  
Angular Distributions

The excited states of 139La up to 1800 keV were studied by means of Coulomb excitation of 139La with protons varying in energy from 4.0 to 5.5 eV. The gamma-ray yields and angular distributions were measured with a Ge(Li) detector. The levels at 1715.0 and 1767.2 keV were Coulomb excited newly. The results of gamma-ray angular distribution measurements establish spin values of 3/2+, 9/2+, 7/2+, 5/2+, and 3/2+ for the 830, 1219.1, 1536.3, 1715.0, and 1767.2 keV levels, respectively. The reduced E2 and M1 transition probabilities were obtained for 11 transitions. The results were compared with the available theoretical calculations.

scholarly journals Confining the angular distribution of terrestrial gamma ray flash emission

2011 ◽  
Vol 116 (A11) ◽  
pp. n/a-n/a ◽  
Author(s):  
T. Gjesteland ◽  
N. Østgaard ◽  
A. B. Collier ◽  
B. E. Carlson ◽  
M. B. Cohen ◽  
...  
Keyword(s):  
Angular Distribution ◽  
Gamma Ray

scholarly journals Spatial Distribution of the Gamma-ray Bursts and the Cosmological Principle

2016 ◽  
Vol 12 (S324) ◽  
pp. 89-90
Author(s):  
Attila Mészáros
Keyword(s):  
Spatial Distribution ◽  
Angular Distribution ◽  
Large Scale ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Cosmological Principle ◽  
The Universe

AbstractThe Cosmological Principle claims that in the large scale average the visible parts of the universe are isotropic and homogeneous. In year 1998 the author, together with his two colleagues, discovered that the BATSE’s short gamma-ray bursts are not distributed isotropically on the sky. This first discovery was followed by other ones confirming both the existence of anisotropies in the angular distribution of bursts and the existence of huge Gpc structures in the spatial distribution. All this means that these anisotropies should reject the Cosmological Principle, because the large scale averaging hardly can be provided. This was claimed in year 2009. The aim of this contribution is to survey these publications since 1998 till today.

Effect of Source Angular Distribution on the Evaluation of Gamma-Ray Skyshine

2000 ◽  
Vol 37 (sup1) ◽  
pp. 645-649 ◽  
Author(s):  
R. D. Sheu ◽  
B. J. Chang ◽  
I. J. Chen ◽  
S. H. Jiang
Keyword(s):  
Angular Distribution ◽  
Gamma Ray
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