Penetration matrix elements and nuclear structure effects in Tl203

摘要: Abstract The study of nuclear structure effects in internal conversion discussed part (I) (preceding paper) has been extended to the neighbouring nucleus Tl201. Gamma-gamma, electron-gamma and gamma-electron correlations have measured. following results obtained: A 2 (946+907γ−330γ) = +0.72±0.04 , (946+907γ−330 e ) +0.210±0.007 (361γ−330γ) −0.20±0.08 (361γ−330 −0.09±0.01 (361 −330γ) +0.001±0.004 (585γ−330 +0.022±0.015 (585γ−361 −0.013±0.008 . From coincidence single counting rates coefficients were determined: α K (330) 0.113±0.008, (361) 0.21±0.025, (585) 0.06±0.01 decay scheme including 17 transitions 9 excited states established. angular used determine spins parities for first, second fifth as well multipolarities, characters mixing ratios most intense transitions. analyzed terms process. Our conclusions reached confirmed, i.e. d 3 → M 1 transition there is no evidence agreement with what be expected from theory. For strongly retarded l- forbidden s experimental data are complete theory λ +74±3, where defined ratio penetration matrix element corresponding gamma ray element. value weighting factor C(Z, k was taken 0.0274. errors given here do not include uncertainty which supposed known within ±10%. Thus large process found 279 keV Tl203 (cf. ref. 13) confirmed analogous 330 Tl203. λ-values these two dose agreement. Corrections static finite size E2 applied case corrections small. It concluded that present formulation conversion, dependent factors, fully consistent data. Experimentally determined elements provide new pieces information about structure. shown order get a unique determination λ-parameter it necessary both coefficient correlation.