Search for a New Isomeric State in the 186Re Nucleus

Карасев, В. Е.; Koltsov, V. V.; Rimskii-Korsakov, A. A.

doi:10.3103/s106287381810012x

Cited by 4 publications

(1 citation statement)

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“…Thus, the scheme of the de-excitation of 186m Re isomer in the experiment [32] remains unclear at present. However, the assumption of the existence of a new isomeric level 186m2 Re has received confirmation on the study of the decay curve from the 186 Re source which was obtained by irradiating a 186 W tungsten target with 15 MeV protons [47]. The deviation of this decay curve from the exponential showed that in (p, n) reaction on the 186 W nucleus with a probability of ∼ 1% a new isomer with a half-life of about 10 d is populated in the 186 Re nucleus.…”

Section: Prospects For Research On the 186m Re Isomer (T 1/2 = 2x10 5 Y)mentioning

confidence: 99%

On the stimulation of the de-excitation of nuclear isomers in plasma of a high-current electric discharge

Koltcov

2021

PPT

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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.

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Section: Prospects For Research On the 186m Re Isomer (T 1/2 = 2x10 5 Y)mentioning

confidence: 99%