Abstract
Conversion electron measurements with an electrostatic spectrometer proved the existence of the 1,565±6 eV transition in201Hg. The conversion intensity ratios,N 1/N 2 =1.2±0.2,N 1/N 3=1.1±0.2,N 2/N 3=0.92±0.15,N 4/N 3=0.03± 0.02 andN 5/N 3=0.04 ±0.02 were determined. These values agree with our calculations for the M1±E2 multipolarity with theE2/M1 mixing ratioδ 2=(l.l±0.3)xl0−4 and exclude all pure multipolarities withL≦4. The total conversion coefficient for the aboveM1 +E2 mixture was evaluated to be (4.7±0.7)× 104. The reducedB(M1, 1/2→3/2) probability was derived to be (3.9 ±1.2) × 10−3 (eℏ/2Mc)2. The natural widths of theN-subshell conversion lines in mercury were found to beΓ(N 1)=8.3± 1.5,Γ(N 2) =5.8±1.5 and Γ(N 3) =6.5±1.0 eV. Monte Carlo calculations of electron scattering in matter yielded the conversion line shapes in qualitative agreement with the experiment.
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