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33 results on '"Latushkin, S. T."'

23. Measurement of 186W(4He, p3n)186Re, 186W(4He, pn)188Re, 186W(4He, p)189Re Reaction Cross Sections By 4He Irradiation of 186W TARGET.

Author

Aliev, R. A., Zagryadskiy, V. A., Kormazeva, E. S., Latushkin, S. T., Malamut, T. Yu., Moiseeva, A. N., Novikov, V. I., Skobelin, I. I., and Unezhev, V. N.

Subjects
NUCLEAR cross sections, DATA libraries, ACTIVATION energy, CROSSES
Abstract

The cross sections of the reactions 186W(4He, p3n)186Re, 186W(4He, pn)188Re, and 186W(4He, p)189Re were measured by the activation method in the energy range of 4He nuclei 24–63 MeV. For all three reactions the cross sections in the TENDL-2019 nuclear data library differ from experiment by more than a factor of 2 in a wide energy range. [ABSTRACT FROM AUTHOR]

Published
2021
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24. Production of a Short-Lived Therapeutic α-Emitter 149Tb by Irradiation of Europium by 63 MeV α-Particles.

Author

Aliev, R. A., Zagryadskiy, V. A., Latushkin, S. T., Moiseeva, A. N., Novikov, V. I., Unezhev, V. N., and Kazakov, A. G.

Subjects
EUROPIUM, IRRADIATION, RADIOIMMUNOTHERAPY, TERBIUM, COPRECIPITATION (Chemistry), ISOTOPES
Abstract

149Tb is currently considered to be a promising α-emitting isotope radioimmunotherapy. It is shown that it can be obtained without the use of a carrier by irradiating a target consisting of Eu2O3 with 4He with energy 63 MeV. After irradiation, radiochemical separation of terbium radioisotopes was performed in a time not exceeding the half-life of 149Tb (4.12 h). It was based on reductive co-precipitation of europium and extraction-chromatographic purification. The obtained product, including 149Tb and the associated terbium radioisotopes, were analyzed by means of alpha- and gamma-spectrometry. It was concluded that the combination and sequence of approaches used in this work allow rapid production of short-lived 149Tb and the use of the technological route implemented in this work in practice. [ABSTRACT FROM AUTHOR]

Published
2021
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25. Measurement of 186Re, 188Re, 189Re Yield on 186W Target Irradiation by 4He, 3He, 1H, and 2H.

Author

Zagryadskii, V. A., Latushkin, S. T., Makoveeva, K. A., Malamut, T. Yu., Novikov, V. I., Ogloblin, A. A., and Unezhev, V. N.

Subjects
*IRRADIATION, *RADIOISOTOPES, *RHENIUM, *MEASUREMENT, *PARTICLES
Abstract

The saturation yield of the rhenium radioisotopes 186Re, 188Re, and 189Re on irradiation of a 186W target by the nuclei 4He, 3He, 1H, and 2H with energy 47, 25, 15.3, and 19 MeV, respectively, was measured by the activation method. The chosen energy of the accelerated particles made it possible to minimize the contribution of the activity of long-lived rhenium radioisotopes in the desired radionuclides. The highest yield 3240 ± 330 MBq/μA was obtained for the radioisotope 186Re in the reaction 186W(2H, 2n)186Re. The obtained yield makes it possible to plan on using in radioimmunotherapy the radionuclide 186Re produced by means of this reaction. [ABSTRACT FROM AUTHOR]

Published
2020
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27. A Gas Target for 82Sr Production Using the 80Kr(4He, 2n)82Sr Reaction at the U-150 Cyclotron of the Kurchatov Institute NRC.

Author

Zagryadskiy, V. A., Latushkin, S. T., Malamut, T. Yu., Novikov, V. I., Ogloblin, A. A., Unezhev, V. N., and Chuvilin, D. Yu.

Subjects
*CYCLOTRONS, *KRYPTON, *ISOTOPES, *GASES, *RADIOISOTOPES, *IRRADIATION, *CONCEPTS
Abstract

The concept of a cascade gas target with krypton isotopes for medical 82Sr radioisotope production is described. Using this concept, an experimental setup was created at the U-150 cyclotron of the Kurchatov Institute NRC for 82Sr production with an 82Sr yield of approximately 53 μCi/μA h using the 80Kr(4He, 2n)82Sr reaction in the 80Kr target module. Descriptions of the system and its operation are presented. The setup performed well with reproducible results. It is noted that the 82Sr radioisotope produced using the setup is free from an admixture of the 85Sr radioisotope that is responsible for approximately one-half the irradiation dose to workers using standard 82Sr–82Rb isotope generators. [ABSTRACT FROM AUTHOR]

Published
2019
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28. Influence of fast proton irradiation with energies of 12.4 and 12.8 MeV on magnetic characteristics and microstructure changes of superconducting intermetallic compound Nb3Sn

Author

Degtyarenko, P N, primary, Ballarino, A, additional, Bottura, L, additional, Gavrilkin, S Y, additional, Flukiger, R, additional, Karateev, I A, additional, Kruglov, V S, additional, Latushkin, S T, additional, Scheuerlein, C, additional, Ryazanov, A I, additional, Semenov, E V, additional, Shavkin, S V, additional, Spina, T, additional, Unezhev, V N, additional, and Vasiliev, A L, additional

Published
2016
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30. Effect of Fast Neutron Irradiation on Current Transport Properties of HTS Materials

Author

Ballarino, A, Bruchanov, A N, Kruglov, V S, Latushkin, S T, Lubimov, A N, Ryazanov, A I, Shavkin, S V, Taylor, T M, and Volkov, P V

Subjects
Accelerators and Storage Rings
Abstract

The effect of fast neutron irradiation with energy up to 35 MeV and integrated fluence of up to 5 x 10**15 cm-2 on the current transport properties of HTS materials Bi-2212 and Bi-2223 has been studied, both at liquid nitrogen and at room temperatures. The samples irradiated were selected after verification of the stability of their superconducting properties after temperature cycling in the range of 77 K - 293 K. It has been found that the irradiation by fast neutrons up to the above dose does not produce a significant degradation of critical current. The effect of room temperature annealing on the recovery of transport properties of the irradiated samples is also reported, as is a preliminary microstructure investigation of the effect of irradiation on the soldered contacts.

Published
2004

33. Cross sections of 3 He-particle induced reactions on 186 W.

Author

Moiseeva AN, Aliev RA, Kormazeva ES, Latushkin ST, Malamut TY, Makoveeva KA, Novikov VI, Unezhev VN, Furkina EB, and Zagryadskiy VA

Abstract

Irradiation of 186 W targets by 3 He particles was carried out. For the first time the cross sections for the reactions of production of 183, 184, 186, 188 Re, 183, 185 Os, 187 W were measured by the stack foil technique in the 3 He energy range of 15-45 MeV. The results were compared to the data from the TENDL-2019 library. Using the experimental excitation functions, the thick target yields of medically relevant rhenium radioisotopes were calculated., (Copyright © 2021 Elsevier Ltd. All rights reserved.)

Published
2021
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