ISSN:
1434-601X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract 199mHg was produced and mass separated at the ISOLDE facility (CERN). Nuclear orientation achieved by optical pumping via the resonance line 6s 2 1 S 0→6s6p 3 P 1,λ=2537Å was monitored by means of the anisotropy of theγ-radiation emitted in the cascade199mHg(I=13/2+) $${}^{199m}Hg(I = 13/2^ + )\xrightarrow[{M4}]{}{}^{199*}Hg(I = 5/2^ - )\xrightarrow[{E2}]{}{}^{199}Hg(I = 1/2^ - ).$$ 199*Hg(I=5/2−)199Hg(I=1/2−). Maximum anisotropies of 35% (2,8%) were found in the M4 (E2) transition. A Zeeman scanning of the3 P 1 state yielded the positions ofF=13/2 and theF=15/2 hfs components relative to the reference isotope204Hg at 15.13 (15) GHz and −2.86 (15) GHz respectively. Isotopic shift and the quadrupole interaction constant were deduced from these values using the knownA factor.δv 199m/2O4=v 2O4−v 199m=12.20 (16) GHzB=−0.86 (25) GHz. From theB factor the spectroscopic quadrupolment was calculated asQ s =1.54 (44) barn.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01440864
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