Mass and Decay of Ne25, a Tz=+52 Nuclide Academic Article uri icon

abstract

  • The first reported measurement of the delayed -ray spectrum following the decay of Ne25 is presented. Ne25 recoils from the Be9(O18,2p)Ne25 reaction were thermalized in He gas and transferred through traps to a remotely located counting station. and rays were counted simultaneously with Ge(Li) and NE102 detectors, respectively. -ray energies (in keV) and relative intensities for the Na25 daughter transitions are 89.53 0.10 (95.5 0.6), 979.77 0.16 (18.1 1.9), 1069.30 0.19 (2.34 0.38), 2112.5 1.0 (0.62 0.19), 2202.0 1.0 (1.1 0.3), and 3688 3 (0.96 0.24). The ground-state branch has been measured to be less than 20% of all branches. The Na25 excitation energies (in keV) and branches (in%, assuming the ground-state branch is zero) are 89.53 0.10 (76.8 1.9), 1069.32 0.19 (19.2 2.0), 2202 1 (2.3 0.5), and 3688 3 (1.18 0.30). A 0.52 0.15% branch is tentatively assigned to a state in Na25 at 4289 3 keV, on the basis of an observed 3220 3-keV ray. The half-life of Ne25 has been measured to be 602 8 msec. By measuring the end-point energy of the spectrum populating the first excited state of Na25 the mass excess of Ne25 has been measured to be -1.96 0.30 MeV. Comparison of the mass and decay of Ne25 with theoretical estimates and models is made. 1973 The American Physical Society.

published proceedings

  • Physical Review C

author list (cited authors)

  • Goosman, D. R., Alburger, D. E., & Hardy, J. C.

citation count

  • 19

complete list of authors

  • Goosman, David R||Alburger, DE||Hardy, JC

publication date

  • March 1973