Open AccessOn the stimulation of the de-excitation of nuclear isomers in plasma of a high-current electric discharge
Author(s) -
Vladimir Koltcov
Publication year - 2021
Publication title -
plasma physics and technology
Language(s) - English
Resource type - Journals
eISSN - 2336-2634
pISSN - 2336-2626
DOI - 10.14311/ppt.2021.1.5
Subject(s) - excitation , plasma , atomic physics , electron , laser , electric discharge , current (fluid) , chemistry , materials science , physics , nuclear physics , optics , electrode , quantum mechanics , thermodynamics
The prospects of stimulated de-excitation of nuclear isomers (SDENI) with a trigger transition energy ∆E up to ∼ 1 keV in a plasma of a high-current electric discharge (HCED) with an electron temperature θ ∼ ∆E are discussed. An estimate of the probability of the SDENI process in plasma by the mechanism of nuclear excitation by electron capture (NEEC) is obtained. Themost promising for the SDENI study are isomers 229mTh (∆E ≈ 8 eV), 235mU (∆E = 76 eV), 110mAg (∆E = 1128 eV). To create an energy source most promising isomer is 186m Re (∆E is unknown) with a half-life of 2 × 105y, for which stimulated de-excitation in the laser plasma had beenalready observed at θ ∼ 1 keV.