Study of the 6.05 MeV cascade transition in C12(α,γ)O16

2011 ◽  
Vol 703 (5) ◽  
pp. 557-561 ◽  
Author(s):  
D. Schürmann ◽  
A. Di Leva ◽  
L. Gialanella ◽  
R. Kunz ◽  
F. Strieder ◽  
...  
Keyword(s):  
Cascade Transition

scholarly journals Gamma Cascade Transition of <sup>51</sup>V(n<sub>th</sub>, <i>g </i>)<sup>52</sup>V Reaction

2014 ◽  
Vol 04 (01) ◽  
pp. 40-45
Author(s):  
Pham Dinh Khang ◽  
Nguyen Xuan Hai ◽  
Ho Huu Thang ◽  
Vuong Huu Tan ◽  
Nguyen An Son ◽  
...  
Keyword(s):  
Cascade Transition

EXCITED STATES OF O18 STUDIED BY THE REACTION

1961 ◽  
Vol 39 (2) ◽  
pp. 276-294 ◽  
Author(s):  
A. E. Litherland ◽  
R. Batchelor ◽  
A. J. Ferguson ◽  
H. E. Gove
Keyword(s):  
Excited States ◽  
Gamma Rays ◽  
Recent Experiment ◽  
Gamma Ray ◽  
Electric Quadrupole ◽  
Angular Correlations ◽  
Small Admixture ◽  
First Excited State ◽  
Cascade Transition ◽  
Crossover Transition

Gamma rays from the excited states of O18 at 3.63 and 3.92 Mev have been observed using the reaction [Formula: see text] at an incident O16 energy of 14 Mev. Both states were observed to emit gamma rays to the 1.98-Mev 2+ first excited state of O18. No evidence for crossover transitions was found and in each case the crossover transition was estimated to be [Formula: see text] of the cascade transition. Angular correlations of the gamma rays were obtained and these strongly support an assignment of spin 0 to the 3.63-Mev state and a spin of 2 for the 3.92-Mev state. These assignments have been confirmed by a recent experiment on the O16(H3, p)O18 reaction which gives the assignments 0+ and 2+ for these two states. Thus the states at 3.55, 3.63, and 3.92 Mev form a triplet with assignments 4+, 0+, and 2+ which strongly resembles the vibrational spectra found in heavier nuclei. However, the measured angular correlations of the gamma rays from the 3.92-Mev state show only a small admixture of electric quadrupole in the 1.94-Mev gamma ray with relative amplitude +0.1 ±.1. A lower limit of ~10−12 seconds on the lifetime of the 3.63-Mev state was obtained from the absence of a doppler shift of the 1.65-Mev cascade gamma ray.

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