Low-lying structure of <sup>215</sup>Rn and <sup>219</sup>Ra
A M Y El-Lawindy; J D Burrows; P A Butler; J R Cresswell; V Holliday; G D Jones; R Tanner; R Wadsworth; D L Watson; K A Connell; J Simpson; C Lauterbach; J R Mines; A M Y El-Lawindy; Dept. of Phys., Liverpool Univ., UK; J D Burrows; Dept. of Phys., Liverpool Univ., UK; P A Butler; Dept. of Phys., Liverpool Univ., UK; J R Cresswell; Dept. of Phys., Liverpool Univ., UK; V Holliday; Dept. of Phys., Liverpool Univ., UK; G D Jones; Dept. of Phys., Liverpool Univ., UK; R Tanner; Dept. of Phys., Liverpool Univ., UK; R Wadsworth; Dept. of Phys., Liverpool Univ., UK; D L Watson; Dept. of Phys., Liverpool Univ., UK; K A Connell; Dept. of Phys., Liverpool Univ., UK; J Simpson; Dept. of Phys., Liverpool Univ., UK; C Lauterbach; Dept. of Phys., Liverpool Univ., UK; J R Mines; Dept. of Phys., Liverpool Univ., UK
Журнал:
Journal of Physics G: Nuclear Physics
Дата:
1987-01-01
Аннотация:
Excited states in <sup>215</sup>Rn and <sup>219</sup>Ra were populated by the alpha decay of <sup>223</sup>Th (T<sub>1</sub>2/=0.6 s), formed in the reaction 83 MeV <sup>208</sup>Pb(<sup>18</sup>O,3n). Out-of-beam gamma rays and conversion electrons were observed in coincidence with the detection of alpha particles. These measurements enabled the low-lying structure of <sup>215</sup>Rn and <sup>219</sup>Ra to be deduced. The strongly populated states are found to be connected by M1 transitions which suggest that their configuration is ( nu g<sub>9</sub>2/)/sup /n.
461.6Кб