Measurement of the directional correlation of the 1038–605 keV gamma cascade in 134Ba

Abstract
The directional correlation of the 1038–605 keV gamma-ray cascade in 134Ba has been determined using the well-known 1365–605 keV gamma-ray cascade as a reference. The detection system was a conventional fast–slow coincidence system using a 9 cm3 cylindrical Ge(Li) counter and a 5 cm × 5 cm NaI(Tl) counter. The observed correlation coefficients were A2 = 0.285 ± 0.030, A4 = −0.002 ± 0.050. The most probable spin sequence for the 1038–605 cascade is 3 (1, 2) 2 (2) 0 with a quadrupole content of 35–49% for the 1038-keV transition.