Browsing by Subject "MONTE-CARLO CALCULATIONS"

Now showing items 1-7 of 7

    • Beta decay of proton-rich nucleus Al-23 and astrophysical consequences 
      Iacob, V. E.; Zhai, Y.; Al-Abdullah, T.; Fu, C.; Hardy, John C.; Nica, N.; Park, H. I.; Tabacaru, G.; Trache, L.; Tribble, Robert E. (American Physical Society, 2006)
      We present the first study of the beta decay of Al-23 undertaken with pure samples. The study was motivated by nuclear astrophysics questions. Pure samples of Al-23 were obtained from the momentum achromat recoil separator ...
    • Branching ratios for the beta decay of Na-21 
      Iacob, V. E.; Hardy, John C.; Gagliardi, Carl A.; Goodwin, J.; Nica, N.; Park, H. I.; Tabacaru, G.; Trache, L.; Tribble, Robert E.; Zhai, Y.; Towner, I. S. (American Physical Society, 2006)
      We have measured the beta-decay branching ratio for the transition from Na-21 to the first excited state of Ne-21. A recently published test of the standard model, which was based on a measurement of the beta-nu correlation ...
    • Further test of internal-conversion theory with a measurement in (197)Pt 
      Nica, N.; Hardy, John C.; Iacob, V. E.; Goodwin, J.; Balonek, C.; Hernberg, M.; Nolan, J.; Trzhaskovskaya, M. B. (American Physical Society, 2009)
      We have measured the K-shell internal conversion coefficient, alpha(K), for the 346.5-keV M4 transition in (197)Pt to be 4.23(7). This result differs from a previous value, which disagreed significantly from theory. Our ...
    • Internal conversion coefficients in (134)Cs, (137)Ba, and (139)La: A precise test of theory 
      Nica, N.; Hardy, John C.; Iacob, V. E.; Balonek, C.; Trzhaskovskaya, M. B. (American Physical Society, 2008)
      Recently we measured the ratio of K-shell internal conversion coefficients, alpha(K), for the 127.5-keV E3 transition in (134)Cs and the 661.7-keV M4 transition in (137)Ba. We here report a measurement of the 165.9-keV M1 ...
    • Precise measurement of alpha(K) for the M4 transition from Ir-193(m): A test of internal-conversion theory 
      Nica, N.; Hardy, John C.; Iacob, VE; Raman, S.; Nestor, CW; Trzhaskovskaya, MB. (American Physical Society, 2004)
      The 10.5-day isomer in Ir-193 decays by a single 80.2-keV M4 transition directly to the ground state of that nucleus. We have measured the total intensity of K x rays relative to 80.2-keV gamma rays for this transition to ...
    • Precise measurement of K-shell fluorescence yield in iridium: An improved test of internal-conversion theory 
      Nica, N.; Hardy, John C.; Iacob, VE; Montague, JR; Trzhaskovskaya, MB. (American Physical Society, 2005)
      We have measured the total intensity of K x rays relative to 129.4-keV gamma rays from decay of the second excited state in Ir-191. This (M1+E2) transition was observed following the beta decay of 15.4-d Os-191. Our measured ...
    • Test of internal-conversion theory with measurements in Cs-134 and Ba-137 
      Nica, N.; Hardy, John C.; Iacob, V. E.; Rockwell, W. E.; Trzhaskovskaya, M. B. (American Physical Society, 2007)
      We have measured the ratio of K-shell internal conversion coefficients, alpha(K), for the 127.5-keV E3 transition in Cs-134 and the 661.7-keV M4 transition in Ba-137. Previous measurements of these alpha(K) values led to ...