NSR Query Results
Output year order : Descending NSR database version of May 2, 2024. Search: Author = V.V.Koltsov Found 19 matches. 2022KO30 Phys.Atomic Nuclei 85, 1848 (2022) On the Width of γ-Line and the Photon Structure RADIOACTIVITY 57Co, 181W(EC); analyzed available data; deduced possible structure of the γ-quantum (photon) as an electromagnetic wave of frequency that does not carry energy (o-wave), which is emitted by the nucleus from the moment of formation of the excited state to the quantum transition, with the energy quantum in the form of a short-term singularity on the "tail" of this o-wave.
doi: 10.1134/S1063778822110035
2021AF05 Bull.Rus.Acad.Sci.Phys. 85, 1147 (2021) V.V.Afanasiev, M.O.Gromov, A.L.Izhutov, V.V.Koltsov, A.L.Petelin, V.V.Pimenov, S.A.Sazontov Production of the 178m2Hf Isomer in a Nuclear Reactor RADIOACTIVITY 178Hf(IT) [from Hf(n, X)178Hf, E thermal]; measured decay products, Eγ, Iγ; deduced specific activity of the isomer in irradiated hafnium.
doi: 10.3103/S1062873821100038
2021KO44 Phys.Atomic Nuclei 84, 1691 (2021) Prospects for Plasma De-Excitation of 186mRe Nuclear Isomer RADIOACTIVITY 186Re(IT); analyzed available data; deduced methods to enhance the efficiency of stimulation of de-excitation of the 186m1Re in plasma: usage of long-lived plasma of high-current electric discharge instead of short-lived laser plasma, additional irradiation of plasma with isomer nuclei with photons whose energy is in resonance with the trigger transition, and multiple repetition of the electric discharge in the 186m1Re plasma.
doi: 10.1134/S1063778821090192
2021KO45 Phys.Atomic Nuclei 84, 1817 (2021) Production of the 186mRe Isomer in Nuclear Reactors NUCLEAR REACTIONS Re(n, X)186Re, E thermal; measured reaction products. 186mRe; deduced isomer activity, production σ. Previously unpublished results from Khlopin Radium Institute, VVR-M reactor.
doi: 10.1134/S1063778821090209
2019BO21 Phys.Atomic Nuclei 82, 1706 (2019) V.G.Borodin, V.V.Vatulin, N.V.Zhidkov, I.P.Elin, V.M.Komarov, V.V.Karasev, V.V.Koltsov, V.A.Malinov, V.M.Migel, V.S.Popikov, A.A.Rimsky-Korsakov, N.A.Suslov, A.V.Charukhchev Search for De-excitation of the 186mRe and 110mAg Nuclear Isomers in Plasma of High-Power Picosecond Laser Pulse RADIOACTIVITY 110Ag, 186Re(IT); measured possible signals of Stimulated De-Excitation of Nuclear Isomers (SDENI) in plasma (electron temperature about 10 keV, plasma T1/2 about 1.5 ps); deduced preliminary results indicating weak SDENI effect for 110mAg isomer on a platinum backing; time dependence of the n umber of pulses in the left part of the 6.57 keV γ-line rom sequentially measured spectra (exposure of 20 s) (110MAg on Ca and on Pt backing).
doi: 10.1134/S1063778819120032
2019KO23 Bull.Rus.Acad.Sci.Phys. 83, 1144 (2019) On the Resonant Character of a Nuclear Conversion Transition and the Possibility of Its Resonant Stimulation
doi: 10.3103/S1062873819090120
2018KA49 Bull.Rus.Acad.Sci.Phys. 82, 1237 (2018) V.V.Karasev, V.V.Koltsov, A.A.Rimskii-Korsakov Search for a New Isomeric State in the 186Re Nucleus NUCLEAR REACTIONS 185Re(n, γ)186Re, E not given;186W(p, n)186Re, E not given; compiled 186Re gs decay T1/2, gs data; 186W(p, n)186Re, E=cyclotron; measured Eγ, Iγi, time dependence of 137 keV line intensity; deduced 186Re T1/2 which needs two (not only one) exponentials to be explained, deduced probability of isomer production.
doi: 10.3103/S106287381810012X
2018KO28 Bull.Rus.Acad.Sci.Phys. 82, 1320 (2018) The Possibility of the Triggered De-Excitation of the 110mAg Isomer in Laser Plasma NUCLEAR STRUCTURE 110mAg; calculated, considered isomer 110mAg as a possible new object for studying of triggered de-excitation of nuclear isomers in pulsed laser plasma using low energy (1128 eV) of the transition to the trigger level leading to de-excitation of 110mAg comparable to the electron plasma temperature together with long lifetime (36 ns) allowing to separate plasma interferences at detecting 110mAg de-excitation.
doi: 10.3103/S1062873818100143
2017VA28 Bull.Rus.Acad.Sci.Phys. 81, 1159 (2017) V.V.Vatulin, N.V.Jidkov, A.A.Rimsky-Korsakov, V.V.Karasev, V.V.Koltsov, A.I.Kostylev, G.V.Tachaev Searching for stimulated de-excitation of the 186mRe nuclei isomeric state in ISKRA-5 laser plasma
doi: 10.3103/S1062873817100252
2016KO43 Bull.Rus.Acad.Sci.Phys. 80, 884 (2016) V.V.Koltsov, A.A.Rimskii-Korsakov, V.V.Karasev Influence of a metallic matrix on the probability of the transition of 910 eV in 154Eu nuclei NUCLEAR REACTIONS Sm(p, n)154mEu, E=15 MeV[using SmCl and SM-Sn alloyas the targets]; measured Eγ, Iγ using HPGe; 154mEu; deduced 145 keV isomer γ-ray transitions, influence of metallic matrix on the 910 eV transition yield.
doi: 10.3103/S1062873816080256
2016RI06 Bull.Rus.Acad.Sci.Phys. 80, 880 (2016) A.A.Rimskii-Korsakov, V.V.Koltsov, V.V.Karasev Scheme of the β-decay of 234Th RADIOACTIVITY 234Th(β-); measured Eγ, Iγ using two HPGe crystals, γγ-coin; deduced γ transitions, X-ray transitions both with and without coincidences. 234Pa; deduced γ transitions following the β- decay not identified before, their energy, branching ratio with respect to β-decay.
doi: 10.3103/S1062873816080347
2000KO53 Bull.Rus.Acad.Sci.Phys. 64, 447 (2000) Effect of Dielectric Properties of a Medium on the Probability of the Isomeric Transition with Energy 3.5 eV in the 229mTh Nucleus RADIOACTIVITY 229mTh(IT); calculated medium effects on photon emission probability.
2000KO54 Bull.Rus.Acad.Sci.Phys. 64, 451 (2000) V.V.Koltsov, L.G.Mashirov, Yu.V.Mortikov, D.N.Suglobov Growth in a Half-Life of the 99mTc Isomer with Its Increasing Penetration into Tin and Lead Matrices RADIOACTIVITY 99mTc(IT); measured T1/2 for source implanted in metal.
1998KO72 Bull.Rus.Acad.Sci.Phys. 62, 789 (1998) V.V.Koltsov, L.G.Mashirov, D.N.Suglobov Effect of the Metallic Matrix on the Probability of Isomeric 2.1-keV Transition in the 99mTc Nucleus RADIOACTIVITY 99mTc(IT); measured T1/2 with source implanted in metal; deduced no supression effect.
1995VO07 Bull.Rus.Acad.Sci.Phys. 59, 20 (1995) Search for an Isomeric Transition of Energy Below 5 eV in 229Th Nucleus RADIOACTIVITY 229Th(α) [from 233U(α-decay)]; measured Eα, Iα, I(ce), counting rate; deduced isomer evidence, excitation energy upper limit. Two different techniques.
1993KO32 Bull.Rus.Acad.Sci.Phys. 57, 93 (1993) On a Probablity of Conversion Transition in the 235mU Nuclei Placed in Silver RADIOACTIVITY 235mU(IT); analyzed T1/2 increase, source in Ag; deduced possible transition stimulation by electromagnetic field zeroth oscillations.
1992VO05 Bull.Rus.Acad.Sci.Phys. 56, 81 (1992) O.V.Voryhalov, E.A.Zaitsev, V.V.Koltsov, A.A.Rimsky-Korsakov Study of Isomer Decay Inside a Conductor RADIOACTIVITY 235mU(IT); measured conversion electron count rate; deduced decay suppression inside dielectric. Isomer decay in conductor.
1990KO39 Dok.Akad.Nauk SSSR 312, 361 (1990); Sov.Phys.Dokl. 35, 464 (1990) Polarization of Electromagnetic Field Vacuum and Change in the Rate of Conversion Decay of Nuclei RADIOACTIVITY 235mU; calculated conversion decay rate change due to electromagnetic field vaccum polarization.
1989KO52 Izv.Akad.Nauk SSSR, Ser.Fiz. 53, 2085 (1989); Bull.Acad.Sci.USSR, Phys.Ser. 53, No.11, 21 (1989) V.V.Koltsov, A.A.Rimsky-Korsakov Influence of Conducting Surroundings on the Decay of the Isomer 235mU RADIOACTIVITY 235mU; measured T1/2; deduced dependence on source surroundings. Source inside, at surface of metallic silver.
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