Elsevier

Nuclear Physics

Volume 21, November–December 1960, Pages 43-48
Nuclear Physics

Gamma radiations from excited states of Ne20

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Abstract

Gamma radiations from excited states of Ne20 have been measured with a lens type pair spectrometer. The nuclear reactions which have been used are F19(d, n)Ne20 and Na23(p, α) Ne20. Gamma radiation with Doppler corrected energies of 7.26, 8.26, 9.22, 9.98, 10.59 and 11.31 MeV has been attributed to Ne20. The 8.26 MeV and 10.59 MeV γ-rays are believed to be due to cascades: 9.98 → 1.63 and 12.22 → 1.63, and the remainder are due to ground state transitions. Gamma radiation was also observed with an energy of 6.67 MeV which is attibuted to F20, and a γ-ray with an energy of 6.17 MeV was observed and attributed to O16. A search was made for nuclear pairs from a 0+ excited state of Ne20 at 4.25 or 4.97 MeV using the Na23(p, α)Ne20 reaction. No nuclear pairs were observed which indicates that the 4.25 MeV state is not 0+.

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Work supported in part by the U. S. Atomic Energy Commission.

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