Abstract
It is shown that in a plasma produced on the surface of a sample consisting of a natural mixture of mercury isotopes, ∼104−105 201Hg nuclei can be excited into the low-lying isomeric level 1/2− (1.561 keV) by an ultrashort laser pulse with energy ≈1 J, duration ≈200 fs, and intensity ≈1016 W/cm2 and the lifetime of the level can be determined. Possible mechanisms leading to the excitation of 201Hg nuclei by photons and electrons in a dense, hot plasma are examined and the cross sections of the processes are estimated. Schemes for detecting the effect are proposed.
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Pis’ma Zh. Éksp. Teor. Fiz. 66, No. 5, 312–316 (10 September 1997)
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Andreev, A.V., Gordienko, V.M., Savel’ev, A.B. et al. Excitation of nuclei in a hot, dense plasma: Feasibility of experiments with 201Hg. Jetp Lett. 66, 331–335 (1997). https://doi.org/10.1134/1.567517
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DOI: https://doi.org/10.1134/1.567517