Open AccessEXPERIMENTS ON DESORPTION OF ATMOSPHERIC GASES FROM GRAPHITE ELEMENTS OF THE KTM TOKAMAK'S FIRST WALL
Author(s) -
Е. Ю. Тулубаев,
Ю. В. Понкратов,
Ю. Н. Гордиенко,
Vadim Bochkov,
Kuanysh Samarkhanov,
С. В. Толмачев,
А. Н. Слуянов,
И. С. Карамбаева
Publication year - 2021
Publication title -
vestnik nâc rk
Language(s) - English
Resource type - Journals
eISSN - 1729-7885
pISSN - 1729-7516
DOI - 10.52676/1729-7885-2021-1-40-47
Subject(s) - graphite , tokamak , desorption , materials science , thermal desorption , thermal , nuclear engineering , vacuum chamber , analytical chemistry (journal) , thermodynamics , composite material , chemistry , physics , nuclear physics , chromatography , plasma , engineering , adsorption
This article describes the preparation and conduct of experiments on atmospheric gas release from graphite elements (tiles) of the KTM tokamak during their heating to a temperature of 450-480 °С. The paper describes the design of the experimental device used for thermal desorption experiments with graphite tiles of the KTM. The method of conducting thermal desorption experiments is described. The time dependence of gas release from graphite tiles during their annealing at linear heating at a rate of 3.5 °C/min to a temperature of 450-480 °C in the constant pumping mode with a high-vacuum pump are given. A brief analysis of experimental data is presented. Recommendations on the technology of preparing graphite tiles before their mounting in the vacuum chamber of the KTM tokamak are proposed.