title: ÐÐ¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¸ÑÑÐµÐ½Ð¾ÑÐ½Ð¾Ð¹ Ð¿Ð»Ð°Ð·Ð¼Ñ ÑÐ¾ÐºÐ°Ð¼Ð°ÐºÐ° DEMO Ñ Ð½Ð°Ð¿ÑÑÐºÐ¾Ð¼ Ð½ÐµÐ¾Ð½Ð°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Modeling of DEMO scrape-off layer plasma with neon seeding
Creators: name: ÐÐ¾ÑÐ·ÑÐµÐ²Ð°, ÐÐµÑÐ¾Ð½Ð¸ÐºÐ°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: ÑÐ¸Ð·Ð¸ÐºÐ° Ð¿Ð»Ð°Ð·Ð¼Ñ
Ð¿ÑÐ¸ÑÑÐµÐ½Ð¾ÑÐ½Ð°Ñ Ð¿Ð»Ð°Ð·Ð¼Ð°
ÑÐ¾ÐºÐ°Ð¼Ð°Ðº
Ð¸Ð·Ð»ÑÑÐ°ÑÑÐ°Ñ Ð¿ÑÐ¸Ð¼ÐµÑÑ
ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
plasma physics
scrape-off layer
tokamak
impurity seeding
numerical modeling

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ðµ ÑÐ¼ÐµÐ½ÑÑÐµÐ½Ð¸Ñ ÑÐµÐ¿Ð»Ð¾Ð²ÑÑ Ð½Ð°Ð³ÑÑÐ·Ð¾Ðº Ð¸ ÑÐ½Ð¸Ð¶ÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÐ¾ÐºÐ¾Ð² ÑÐ°ÑÑÐ¸Ñ Ð½Ð° Ð´Ð¸Ð²ÐµÑÑÐ¾Ñ Ð² ÑÐ¾ÐºÐ°Ð¼Ð°ÐºÐµ DEMO. DEMO â Ð´ÐµÐ¼Ð¾Ð½ÑÑÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐ¹ Ð¾Ð±ÑÐ°Ð·ÐµÑ ÑÐµÑÐ¼Ð¾ÑÐ´ÐµÑÐ½Ð¾Ð¹ ÑÐ»ÐµÐºÑÑÐ¾ÑÑÐ°Ð½ÑÐ¸Ð¸, Ð¿Ð¾ÑÐ¾Ð¼Ñ Ð² Ð¾ÑÐ»Ð¸ÑÐ¸Ðµ Ð¾Ñ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÑ ÑÐ¾ÐºÐ°Ð¼Ð°ÐºÐ¾Ð²-ÑÐµÐ°ÐºÑÐ¾ÑÐ¾Ð² DEMO Ð´Ð¾Ð»Ð¶ÐµÐ½ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÑ Ð¿ÑÐ¸Ð¼ÐµÑ Ð´Ð»Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ ÑÐµÑÐ¼Ð¾ÑÐ´ÐµÑÐ½Ð¾Ð³Ð¾ ÑÐ¸Ð½ÑÐµÐ·Ð° Ð² 1 ÐÐÑ. ÐÐ»Ñ Ð¾ÑÑÑÐµÑÑÐ²Ð»ÐµÐ½Ð¸Ñ Ð´Ð»Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ¸ ÑÑÐµÐ±ÑÐµÑÑÑ, ÑÑÐ¾Ð±Ñ Ð¿Ð»Ð¾ÑÐ½Ð¾ÑÑÑ Ð¿Ð¾ÑÐ¾ÐºÐ° ÑÐ½ÐµÑÐ³Ð¸Ð¸ Ð½Ð° Ð´Ð¸Ð²ÐµÑÑÐ¾ÑÐ½ÑÐµ Ð¿Ð»Ð°ÑÑÐ¸Ð½Ñ Ð½Ðµ Ð¿ÑÐµÐ²ÑÑÐ°Ð»Ð° Ð² Ð¼Ð°ÐºÑÐ¸Ð¼ÑÐ¼Ðµ 5 ÐÐÑâÐ¼^(-2), Ð° ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ° Ñ Ð¿Ð»Ð°ÑÑÐ¸Ð½ Ð½Ðµ Ð±ÑÐ»Ð° Ð²ÑÑÐµ 5 ÑÐ. ÐÐ°Ð½Ð½ÑÐµ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ Ð² ÑÑÑÐµÑÑÐ²ÑÑÑÐ¸Ñ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÑ ÑÐ¾ÐºÐ°Ð¼Ð°ÐºÐ°Ñ Ð´Ð¾ÑÑÐ¸Ð³Ð°ÑÑÑÑ Ð¿ÑÑÐµÐ¼ Ð½Ð°Ð¿ÑÑÐºÐ° Ð¿ÑÐ¸Ð¼ÐµÑÐ½Ð¾Ð³Ð¾ Ð³Ð°Ð·Ð°, Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ ÐºÐ¾ÑÐ¾ÑÐ¾Ð³Ð¾ ÑÐ½ÐµÑÐ³Ð¸Ñ Ð¿Ð»Ð°Ð·Ð¼Ñ Ð²Ð¾Ð·Ð»Ðµ Ð´Ð¸Ð²ÐµÑÑÐ¾ÑÐ° Ð¿ÐµÑÐµÐ¸Ð·Ð»ÑÑÐ°ÐµÑÑÑ, Ð° ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ° â ÑÐ½Ð¸Ð¶Ð°ÐµÑÑÑ. Ð ITER â Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ Ð±Ð»Ð¸Ð·ÐºÐ¾Ð¹ Ð¿Ð¾ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ°Ð¼ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐµ â Ð´Ð»Ñ ÑÑÐ¸Ñ ÑÐµÐ»ÐµÐ¹ Ð±ÑÐ´ÐµÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÑÑÑ Ð½Ð°Ð¿ÑÑÐº Ð½ÐµÐ¾Ð½Ð° Ð¸ ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸Ðµ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð°ÑÐ¾Ð¼Ð¾Ð² Ð¸ Ð¼Ð¾Ð»ÐµÐºÑÐ» Ð´ÐµÐ¹ÑÐµÑÐ¸Ñ Ð² Ð´Ð¸Ð²ÐµÑÑÐ¾ÑÐ½Ð¾Ð¹ Ð¾Ð±Ð»Ð°ÑÑÐ¸. ÐÐ¾ÑÐºÐ¾Ð»ÑÐºÑ ITER ÐµÑÐµ ÑÑÑÐ¾ÑÑÐ¸Ð¹ÑÑ ÑÐ¾ÐºÐ°Ð¼Ð°Ðº, ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð´Ð»Ñ Ð½ÐµÐ³Ð¾ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸Ð»Ð¸ÑÑ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ ÐºÐ¾Ð´Ð° SOLPS-ITER, ÐºÐ¾ÑÐ¾ÑÑÐ¹ ÑÐ¿Ð¾ÑÐ¾Ð±ÐµÐ½ Ð²Ð¾ÑÐ¿ÑÐ¾Ð¸Ð·Ð²ÐµÑÑÐ¸ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÑ Ð½Ð° ÑÑÑÐµÑÑÐ²ÑÑÑÐ¸Ñ ÑÐ¾ÐºÐ°Ð¼Ð°ÐºÐ°Ñ.
Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð±ÑÐ»Ð¾ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÐºÐ¾Ð´Ð¾Ð¼ SOLPS-ITER Ð¿ÑÐ¸ÑÑÐµÐ½Ð¾ÑÐ½Ð¾Ð¹ Ð¿Ð»Ð°Ð·Ð¼Ñ DEMO Ñ Ð½Ð°Ð¿ÑÑÐºÐ¾Ð¼ Ð½ÐµÐ¾Ð½Ð° Ð²ÐµÐ»Ð¸ÑÐ¸Ð½Ð¾Ð¹ 1.0â10^19 Ñ^(-1) Ð¸ Ð½Ð°Ð¿ÑÑÐºÐ°Ð¼Ð¸ Ð´ÐµÐ¹ÑÐµÑÐ¸Ñ 1.0â10^23 Ñ^(-1) Ð¸ 1.5â10^23 Ñ^(-1). ÐÑÐ»Ð¾ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¾, ÑÑÐ¾ Ñ ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸ÐµÐ¼ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿Ð¾Ð´ Ð¥-ÑÐ¾ÑÐºÐ¾Ð¹ Ð¸Ð·-Ð·Ð° Ð½Ð°Ð¿ÑÑÐºÐ° Ð´ÐµÐ¹ÑÐµÑÐ¸Ñ ÑÐ´Ð°ÐµÑÑÑ ÑÐ½Ð¸Ð·Ð¸ÑÑ Ð½Ð°Ð³ÑÑÐ·ÐºÐ¸ Ð½Ð° Ð´Ð¸Ð²ÐµÑÑÐ¾ÑÐ½ÑÐµ Ð¿Ð»Ð°ÑÑÐ¸Ð½Ñ Ð´Ð¾ 5 ÐÐÑâÐ¼^(-2), Ð¾Ð´Ð½Ð°ÐºÐ¾ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ° Ð´Ð¾ 5 ÑÐ ÑÐ½Ð¸Ð·Ð¸Ð»Ð°ÑÑ ÑÐ¾Ð»ÑÐºÐ¾ Ð½Ð° Ð²Ð½ÑÑÑÐµÐ½Ð½ÐµÐ¹ Ð¿Ð»Ð°ÑÑÐ¸Ð½Ðµ Ð´Ð¸Ð²ÐµÑÑÐ¾ÑÐ°. Ð­ÑÐ¾Ñ ÑÐµÐ·ÑÐ»ÑÑÐ°Ñ Ð¿Ð¾Ð´ÑÐ²ÐµÑÐ¶Ð´Ð°ÐµÑ Ð¿Ð¾Ð»Ð¾Ð¶Ð¸ÑÐµÐ»ÑÐ½Ð¾Ðµ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸Ñ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð² Ð´Ð¸Ð²ÐµÑÑÐ¾ÑÐ½Ð¾Ð¹ Ð¾Ð±Ð»Ð°ÑÑÐ¸ Ð½Ð° ÑÐ½Ð¸Ð¶ÐµÐ½Ð¸Ðµ Ð¿Ð¾ÑÐ¾ÐºÐ¾Ð² ÑÐ½ÐµÑÐ³Ð¸Ð¸ Ð½Ð° Ð´Ð¸Ð²ÐµÑÑÐ¾ÑÐ½ÑÐµ Ð¿Ð»Ð°ÑÑÐ¸Ð½Ñ Ð´Ð¾ Ð¿ÑÐ¸ÐµÐ¼Ð»ÐµÐ¼ÑÑ Ð²ÐµÐ»Ð¸ÑÐ¸Ð½, ÑÐ¼ÐµÐ½ÑÑÐµÐ½Ð¸Ðµ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÑ Ð½Ð° Ð¿Ð»Ð°ÑÑÐ¸Ð½Ð°Ñ Ð²ÑÐµ ÐµÑÐµ Ð¾ÑÑÐ°ÐµÑÑÑ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½ÑÐ¼ Ð¿ÑÑÐµÐ¼ Ð»ÑÑÑÐµÐ³Ð¾ Ð¿Ð¾Ð´Ð±Ð¾ÑÐ° Ð½Ð°Ð¿ÑÑÐºÐ¾Ð² Ð½ÐµÐ¾Ð½Ð° Ð¸ Ð´ÐµÐ¹ÑÐµÑÐ¸Ñ.
description: The given work is devoted to the problem of energy loads reduction at DEMO divertor plates. DEMO is for Demonstration Power Plant, itâs designed to be the first tokamak which will generate 1 GW thermonuclear power, performing much long period of time. For this purpose, power loads to DEMO divertor have to be lower than 5 MWâm^(-2) and the electron temperature has to be lower than 5 eV. The closest to DEMO tokamak is ITER, so it was discovered by a computer modeling that radiative impurity seeding and deuterium pressure increasing lead to better plasma performance in the ITER divertor region. This computer modeling was carried out by tested on different existed tokamak devices â SOLPS-ITER code package.
This Bachelorâs thesis presents SOLPS-ITER modeling for the DEMO scrape-off layer plasma with neon and deuterium seeding with rates: 1.0â10^19 s^(-1) for neon puff and 1.0â10^23 s^(-1) Ð¸ 1.5â10^23 s^(-1) for deuterium ones. It was confirmed that increased puff leads to increased neutral pressure that followed by decreasing of the power density to the divertor plates to 5 MWâm^(-2), but in both cases temperature remains higher than 5 eV (note: only at inner divertor target temperature is about this value). Those results show a positive trend for neutral deuterium pressure impact on plasma at the divertor targets, so the question of temperature decreasing may be answered by future modeling.