Study of evaporating the irradiated graphite in equilibrium low-temperature plasma
| Parent link: | Thermophysics and Aeromechanics Vol. 25, iss. 1.— 2018.— [P. 109–117] |
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| Autor Corporativo: | |
| Otros Autores: | , , , |
| Sumario: | Title screen The paper describes a problem of accumulation of irradiated graphite due to operation of uranium-graphite nuclear reactors. The main noncarbon contaminants that contribute to the overall activity of graphite elements are iso-topes 137Cs, 60Co, 90Sr, 36Cl, and 3H. A method was developed for processing of irradiated graphite ensuring the volu-metric decontamination of samples. The calculation results are presented for equilibrium composition of plasma-chemical reactions in systems “irradiated graphite-argon” and “irradiated graphite-helium” for a wide range of tem-peratures. The paper describes a developed mathematical model for the process of purification of a porous graphite surface treated by equilibrium low-temperature plasma. The simulation results are presented for the rate of sublimation of radioactive contaminants as a function of plasma temperature and plasma flow velocity when different plasma-forming gases are used. The extraction coefficient for the contaminant 137Cs from the outer side of graphite pores was calculated. The calculations demonstrated the advantages of using a lighter plasma forming gas, i.e., helium. Режим доступа: по договору с организацией-держателем ресурса |
| Lenguaje: | inglés |
| Publicado: |
2018
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| Materias: | |
| Acceso en línea: | https://doi.org/10.1134/S0869864318010109 |
| Formato: | Electrónico Capítulo de libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=667166 |
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| 200 | 1 | |a Study of evaporating the irradiated graphite in equilibrium low-temperature plasma |f E. V. Bespala, I. Yu. Novoselov, A. O. Pavlyuk, S. G. Kotlyarevsky | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 12 tit.] | ||
| 330 | |a The paper describes a problem of accumulation of irradiated graphite due to operation of uranium-graphite nuclear reactors. The main noncarbon contaminants that contribute to the overall activity of graphite elements are iso-topes 137Cs, 60Co, 90Sr, 36Cl, and 3H. A method was developed for processing of irradiated graphite ensuring the volu-metric decontamination of samples. The calculation results are presented for equilibrium composition of plasma-chemical reactions in systems “irradiated graphite-argon” and “irradiated graphite-helium” for a wide range of tem-peratures. The paper describes a developed mathematical model for the process of purification of a porous graphite surface treated by equilibrium low-temperature plasma. The simulation results are presented for the rate of sublimation of radioactive contaminants as a function of plasma temperature and plasma flow velocity when different plasma-forming gases are used. The extraction coefficient for the contaminant 137Cs from the outer side of graphite pores was calculated. The calculations demonstrated the advantages of using a lighter plasma forming gas, i.e., helium. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Thermophysics and Aeromechanics | ||
| 463 | |t Vol. 25, iss. 1 |v [P. 109–117] |d 2018 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a irradiated graphite | |
| 610 | 1 | |a plasma | |
| 610 | 1 | |a processing | |
| 610 | 1 | |a decontamination | |
| 701 | 1 | |a Bespala |b E. V. |c engineer-physicist |c Associate Professor of Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences |f 1990- |g Evgeniy (Evgeny) Vladimirovich |9 88593 | |
| 701 | 1 | |a Novoselov |b I. Yu. |c specialist in the field of nuclear physics |c Senior Lecturer of Tomsk Polytechnic University |f 1989- |g Ivan Yurievich |3 (RuTPU)RU\TPU\pers\34239 |9 17770 | |
| 701 | 1 | |a Pavlyuk (Pavliuk) |b A. O. |c specialist in the field of nuclear technologies |c Head of the Project Office of the Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences |f 1976- |g Aleksander Olegovich |3 (RuTPU)RU\TPU\pers\47562 |9 23058 | |
| 701 | 1 | |a Kotlyarevsky |b S. G. |g Sergey Gennadjevich | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа ядерных технологий |b Отделение ядерно-топливного цикла |3 (RuTPU)RU\TPU\col\23554 |
| 801 | 2 | |a RU |b 63413507 |c 20230427 |g RCR | |
| 856 | 4 | |u https://doi.org/10.1134/S0869864318010109 | |
| 942 | |c CF | ||