FACILITY GESA-4M FOR ELECTRON BEAM MODIFICATION OF FUEL CLADDING SURFACES OF REACTOR PLANTS WITH HEAVY LIQUID METAL COOLANT
Author:
Engelko V1, Pavlov E1, Tkachenko K1, Shchegolikhin N1
Affiliation:
1. D.V. Efremov Institute of Electrophysical Apparatus
Abstract
Large number researches with constructional steels used in nuclear reactjrs with heavy liquid-metal heat-transfer agents, have shown, that using of pulse intense electron beams (PIEB) including precoated with Al layer may be the most perspective meanse to improve operational characteristics of these steels. In report it ispresented description of experimental facility for practical realization of modification process of fuel element cladding surface, having radially converging PIEB with the electron source 100 cm long. The source consists of a cathode, a control grid and an anode, which is a treated target. Here they are presented the results of the first stage of experimental researches of the operation of this source. Design of the cathode of described electron source differs essentially from cjn-struction of previously used uncontrollable multipoint cathode. In new version of the cathode as an emitter of electrons it is used plasma indused by large quantities (2400 pieces) of the vacuum-arc discharge gaps arranged uniformly on surface of the cilindrical base plate. Whole assemblage of the discharge gaps consists of the cells each including four point electrodes and one cruciform discharge electrode in common. On surface of the cilindical target having diameter of 10 mm it was achieved density of electron beam energy of 30 J/cm2 on length not less 50 cm. They are shown the ways to increase the parameters of electron beam facility.
Publisher
Institute for Physics and Power Engineering (IPPE, Inc.)
Reference8 articles.
1. Энгелько В.И. Разработка методов формирования интенсивных электронных и ионных пучков микросекундной длительности, создание на их основе ускорителей и их применение. Дисс. док. тех. наук. Санкт-Петербург, 2002.
,
Engel'ko V.I. Razrabotka metodov formirovaniya intensivnyh elektronnyh i ionnyh puchkov mikrosekundnoy dlitel'nosti, sozdanie na ih osnove uskoriteley i ih primenenie. Diss. dok. teh. nauk. Sankt-Peterburg, 2002. 2. Engelko V., Mueller G., Rusanov A. et al. Surface modification/alloying using intense pulsed electron beam as a tool for improving the corrosion resistance of steels exposed to heavy liquid metals. Journal of Nuclear Materials, 2011, vol. 415, no. 3, pp. 270-275.
,
Engelko V., Mueller G., Rusanov A. et al. Surface modification/alloying using intense pulsed electron beam as a tool for improving the corrosion resistance of steels exposed to heavy liquid metals. Journal of Nuclear Materials, 2011, vol. 415, no. 3, pp. 270-275. 3. Энгелько В.И., Ткаченко К.И., Русанов А.Е., Биржевой Г.А. Опытная установка для электронно-лучевой модификации поверхности оболочек ТВЭЛов и ПЭЛов РУ с теплоносителями Pb и Pb-Bi. Вопросы Атомной Науки и Техники. Серия: Ядерно-реакторные константы, 2015, вып. 4, с. 93-99.
,
Engel'ko V.I., Tkachenko K.I., Rusanov A.E., Birzhevoy G.A. Opytnaya ustanovka dlya elektronno-luchevoy modifikacii poverhnosti obolochek TVELov i PELov RU s teplonositelyami Pb i Pb-Bi. Voprosy Atomnoy Nauki i Tehniki. Seriya: Yaderno-reaktornye konstanty, 2015, vyp. 4, s. 93-99. 4. Engelko V.I., Kuznetsov V.S., Mueller G. Electron source of triode type with radial converging electron flow for irradiation of cylindrical target. Journal of Applied Physics, 2009, vol. 105, no. 2, pp. 023305.
,
Engelko V.I., Kuznetsov V.S., Mueller G. Electron source of triode type with radial converging electron flow for irradiation of cylindrical target. Journal of Applied Physics, 2009, vol. 105, no. 2, pp. 023305. 5. Engelko V.I., Mueller G. Microsecond intense electron beams for industrial applications. IEEE Transactions on Plasma Science, 2013, vol. 41, no. 10, pp. 2769-2773.
,
Engelko V.I., Mueller G. Microsecond intense electron beams for industrial applications. IEEE Transactions on Plasma Science, 2013, vol. 41, no. 10, pp. 2769-2773.
|
|