The gamma-gamma angular correlation studies in 132Xe

The gamma-gamma angular correlations on 17 cascades in 132Xe from the decay of 132I have been measured using a Ge(Li)-NaI(Tl) coincidence set-up. Out of these, the correlation coefficients of the 363-772, 650-(523)-772, 877-(523)-772, 910-772 and 910-(772)-668 keV cascades have been measured for the first time. These measurements have been used to deduce the multipole mixing ratios of 11 transitions in 132Xe. The results are: delta(363) = -0.023 +- 0.023, delta(523) = -0.23 +- 0.16, delta(630) = 6.1sub(-2.5)sup(+6.5), delta(650) = -0.16 +- 0.11, delta(877) = -1.2 +- 0.5, delta(955) = -0.033 +- 0.033, delta(1136) = 0.45 +- 0.05, delta(1173) = -0.6 +- 0.4 or -2.0sub(-6.0)sup(+0.9), delta(1372) = 0.02 +- 0.07, delta(1399) = 0.04 +- 0.02 and delta(1442) = -0.02 +- 0.03. The directional correlation results have also been used to deduce the spin value of 4+ to each of the 1962.9, 2394.9 and 2840.5 keV levels and those of 3+ and 3+ or 5+ to the 2669.9 and 2350.7 keV levels respectively. (author)