1. Investigation of applicability of coronal and collisional-radiative plasma models in a high-frequency discharge
- Subjects
collisional-radiative model ,popula-tion modeling of atomic hydrogen ,ÑзÑк пÑогÑаммиÑÐ¾Ð²Ð°Ð½Ð¸Ñ python ,моделиÑование наÑелÑнноÑÑи аÑома водоÑода ,ÑÑолкновиÑелÑно-излÑÑаÑелÑÐ½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ ,coronal model ,python programming language ,коÑоналÑÐ½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ - Abstract
Тема вÑпÑÑкной квалиÑикаÑионной ÑабоÑÑ: «ÐÑÑледование пÑименимоÑÑи коÑоналÑной и ÑÑолкновиÑелÑно-излÑÑаÑелÑной моделей Ð¿Ð»Ð°Ð·Ð¼Ñ Ð² вÑÑокоÑаÑÑоÑном ÑазÑÑде». ÐÐ°Ð½Ð½Ð°Ñ ÑабоÑа поÑвÑÑена опÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð³ÑÐ°Ð½Ð¸Ñ Ð¿ÑименимоÑÑи коÑоналÑной и ÑÑолкновиÑелÑно-излÑÑаÑелÑной моделей в вÑÑокоÑаÑÑоÑном ÑазÑÑде. Ð¦ÐµÐ»Ñ ÑабоÑÑ Ð·Ð°ÐºÐ»ÑÑаеÑÑÑ Ð² пÑогÑаммной ÑеализаÑии ÑаÑÑÑÑа и моделиÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð½Ð°ÑелÑнноÑÑи аÑома водоÑода меÑодами вÑÑеопиÑаннÑÑ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹. РезÑлÑÑаÑом моделиÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑвлÑеÑÑÑ Ð½Ð°Ð±Ð¾Ñ Ð´Ð°Ð½Ð½ÑÑ , демонÑÑÑиÑÑÑÑÐ¸Ñ Ð½Ð°ÑелÑнноÑÑÑ Ð½Ð° каждом ÑÑовне аÑома пÑи ÑазнÑÑ Ð¿Ð»Ð¾ÑноÑÑÑÑ ÑазÑÑда Ñ Ð¿Ð¾ÑÑоÑнной ÑемпеÑаÑÑÑой, пÑи ÑазнÑÑ ÑемпеÑаÑÑÑÐ°Ñ ÑазÑÑда Ñ Ð¿Ð¾ÑÑоÑнной плоÑноÑÑÑÑ. ÐÑÑÑм ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ ÑезÑлÑÑаÑов опÑеделÑлаÑÑ Ð³ÑаниÑа пÑименимоÑÑи коÑоналÑной модели, пÑи ÑÑом ÑÑолкновиÑелÑно-излÑÑаÑелÑÐ½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ ÑÑиÑалаÑÑ Ð·Ð°Ð²ÐµÐ´Ð¾Ð¼Ð¾ более ÑоÑной. ÐолÑÑеннÑе знаÑÐµÐ½Ð¸Ñ Ð½Ð°ÑелÑнноÑÑи показÑваÑÑ, ÑÑо Ñ ÑвелиÑение плоÑноÑÑи ÑоÑноÑÑÑ ÐºÐ¾ÑоналÑной модели ÑнижаеÑÑÑ. ÐÑи вÑÑÐ¾ÐºÐ¸Ñ Ð¿Ð»Ð¾ÑноÑÑÑÑ Ð¿Ð»Ð°Ð·Ð¼Ñ Ð¾Ð½Ð° ÑвлÑеÑÑÑ Ð¿Ñименимой ÑолÑко на Ð½Ð¸Ð·ÐºÐ¸Ñ ÑÑовнÑÑ (Ñ Ð³Ð»Ð°Ð²Ð½Ñм кванÑовÑм ÑиÑлом поÑÑдка 10). С ÑвелиÑением ÑемпеÑаÑÑÑÑ ÐºÐ¾ÑоналÑÐ½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ, наобоÑоÑ, ÑоÑнее опиÑÑÐ²Ð°ÐµÑ Ð½Ð°ÑелÑнноÑÑÑ Ð°Ñома.ÐаннÑе ÑезÑлÑÑаÑÑ Ð¼Ð¾Ð³ÑÑ Ð±ÑÑÑ Ð¸ÑполÑÐ·Ð¾Ð²Ð°Ð½Ñ Ð² ÑпекÑÑоÑкопии ÑиÑÑÑÑего ÑазÑÑда, ÑÑÑÑанÑÑÑего пÑимеÑнÑе ÑаÑÑиÑÑ Ñ Ð¿Ð¾Ð²ÐµÑÑ Ð½Ð¾ÑÑи опÑиÑеÑÐºÐ¸Ñ Ð·ÐµÑкал. С помоÑÑÑ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð½Ð°ÑелÑнноÑÑи пÑимеÑнÑÑ ÑаÑÑÐ¸Ñ ÑÑановиÑÑÑ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ñм инÑеÑпÑеÑаÑÐ¸Ñ Ð´Ð°Ð½Ð½ÑÑ ÑпекÑÑоÑкопии Ð´Ð»Ñ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ ÐºÐ¾Ð½ÑенÑÑаÑии ÑаÑÑÐ¸Ñ Ð² плазме. РезÑлÑÑаÑÑ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑабоÑÑ Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÑÑ ÑделаÑÑ Ð²Ñвод, ÑÑо коÑоналÑÐ½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ Ð² болÑÑинÑÑве ÑлÑÑаев пÑименима Ð´Ð»Ñ Ð·Ð°Ð´Ð°Ñ ÑпекÑÑоÑкопии вÑÑокоÑаÑÑоÑного ÑазÑÑда, поÑколÑÐºÑ Ð¾Ð¿Ð¸ÑÑÐ²Ð°ÐµÑ Ð½Ð¸Ð·ÐºÐ¸Ðµ ÑÑовни аÑома водоÑода Ñ Ð²ÑÑокой ÑоÑноÑÑÑÑ., The subject of the graduate qualification work is âInvestigation of coronal and collision-radiation models applicability in high-frequency dischargeâ. The given work is devoted to define boundaries of applicability of coronal and collision-radiation models in high-frequency discharge. Purpose of the work is to program and to get numeric results of atomic hydrogen population. The result of the program is numerical data which describe population on each level with different discharge densities and equal temperature, with different discharge temperature and equal density. These data are compared to each other in order to define boundaries of coronal model applicability. During this process collision-radiation model considered to be much more accurate.Result of numerical modeling shows, that accuracy of coronal model decreases with growth of density. For high densities of plasma it can be used only for low levels (main quantum number of the order of 10). With increasing temperature, the coronal model, on the contrary, more accurately describes the population of the atom. These results can be used in cleaning discharge spectroscopy, which removes impurity particles from optical mirror surface. Analyses of spectroscopy data for defining impurity particles density become possible with the help of numerical modeling of population of such particles. Results of this work shows that coronal model in most cases can be applied for high-frequency discharge spectroscopy problems, because it describes the low levels of atomic hydrogen with high accuracy.
- Published
- 2022
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