Publications [#313685] of Anton P. Tonchev

Papers Published
  1. Tonchev, AP; Harmon, JF, Excitation of the 180mTa isomer in (gamma,n) reactions and its astrophysical relevance, Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine, vol. 52 no. 4 (April, 2000), pp. 873-882 [doi] .

    The yield has been determined for the excitation of 180gTa (Jpi = 1+) from the 181Ta(gamma,n) reaction by measurements of gamma rays emitted following the electron capture and beta-decays of the 8.15 h ground state. The probability sigmam/(sigmam + sigmag) for the production of the 180mTa isomer (Jpi = 9-) after gamma absorption in the energy region from 8 to 13 MeV was deduced. The role of the initial and final spins on the reaction yield, along with the relevance for nucleosynthesis of 180mTa, is discussed.