Studies of octupole structures in the isotopes <sup>220,222</sup>Rn populated via α decay.
R J Poynter; P A Butler; G D Jones; R J Tanner; C A White; J R Hughes; S M Mullins; R Wadsworth; D L Watson; J Simpson; R J Poynter; Oliver Lodge Lab., Liverpool Univ., UK; P A Butler; Oliver Lodge Lab., Liverpool Univ., UK; G D Jones; Oliver Lodge Lab., Liverpool Univ., UK; R J Tanner; Oliver Lodge Lab., Liverpool Univ., UK; C A White; Oliver Lodge Lab., Liverpool Univ., UK; J R Hughes; Oliver Lodge Lab., Liverpool Univ., UK; S M Mullins; Oliver Lodge Lab., Liverpool Univ., UK; R Wadsworth; Oliver Lodge Lab., Liverpool Univ., UK; D L Watson; Oliver Lodge Lab., Liverpool Univ., UK; J Simpson; Oliver Lodge Lab., Liverpool Univ., UK
Журнал:
Journal of Physics G: Nuclear and Particle Physics
Дата:
1989-04-01
Аннотация:
The nuclei <sup>220,222</sup>Rn have been studied, using the alpha -radioactive sources <sup>226</sup>Ra and <sup>228</sup>Th, via the technique of alpha - gamma angular correlation. This has enabled J<sup>pi </sup> assignments to be made to the previously known low-lying levels in <sup>220,222</sup>Rn and alpha hindrance factors to be interpreted. The systematics of alpha hindrance factors for these Z=86 nuclei are examined and compared with those of Z=88, 90 nuclei. The subsequent alpha decays to <sup>216,218</sup>Po were observed and 2<sup>+</sup> assignments confirmed for the first excited states in these nuclei.
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