【摘要】：磁壓縮系統(tǒng)為俄羅斯實(shí)驗(yàn)物理研究院提出的核聚變方案。磁壓縮系統(tǒng)腔室中雜質(zhì)粒子可能來(lái)源于熱脫附、等離子體刮削器壁等途徑。利用ANSYS工具模擬5 MA脈沖電流流過(guò)腔室,并給出電極溫度的二維分布圖,結(jié)合研究小尺寸銅樣品上雜質(zhì)的解吸附來(lái)分析磁壓縮系統(tǒng)腔室中熱脫附過(guò)程產(chǎn)生的雜質(zhì)粒子。通過(guò)測(cè)量3keV的Ar~+離子入射到Cu(110),Cu(111)樣品表面的飛行時(shí)間譜,分析樣品表面吸附的雜質(zhì)種類,以及樣品表面雜質(zhì)含量隨溫度的變化關(guān)系。研究表明雜質(zhì)粒子含量跟電極溫度有關(guān)聯(lián)性,且跟電極材料表面結(jié)構(gòu)相關(guān)。
[Abstract]:The magnetic compression system is a nuclear fusion scheme proposed by the Russian Institute of Experimental Physics. The impurity particles in the chamber of magnetic compression system may come from thermal desorption and plasma scraper wall. The 5 MA pulsed current flow through the chamber was simulated by ANSYS, and the two-dimensional distribution of electrode temperature was given. The impurity particles produced during the thermal desorption process in the chamber of magnetic compression system were analyzed by studying the desorption of impurities on small copper samples. By measuring the time-of-flight spectra of 3keV Ar~ ions incident to the surface of Cu (110), Cu (111) samples, the kinds of impurities adsorbed on the surface of the samples and the relationship between the surface impurity content and the temperature were analyzed. The results show that impurity particle content is related to electrode temperature and surface structure of electrode material.
【作者單位】： 中國(guó)工程物理研究院銀河596科技園脈沖功率科學(xué)與技術(shù)重點(diǎn)實(shí)驗(yàn)室;中國(guó)工程物理研究院流體物理研究所;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(11405166)
【分類號(hào)】：TL612

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