DEMO reactor with liquid lithium divertor operation in presence of krypton seeding is analyzed. Integrated core-scrape-off layer-divertor code COREDIV is used. Sputtering model is revised and sputtering dependence on the divertor surface temperature fitted to the experimental data is added. It was found that Kr seeding is beneficial for DEMO operation. Plasma fuel dilution by lithium ions is reduced to the level of \(1\%\) for high level of Kr seeding and fusion power is comparable to the modelling results for argon or neon seeded DEMO with tungsten divertor. Simulations show that high confinement mode is possible in presence of Kr seeding (power across the separatrix stays above the L-H threshold).

分析了在liquid存在下具有液态锂分流器运行的DEMO反应器。使用了集成的核心刮除层偏滤器代码COREDIV。修改了溅射模型，并增加了对与实验数据拟合的偏滤器表面温度的溅射依赖性。已经发现，Kr播种对于DEMO操作是有益的。对于高水平的Kr注入，通过锂离子进行的等离子体燃料稀释降低到\（1 \％\）的水平，聚变功率可与带有钨分流器的氩或氖注入的DEMO的模拟结果相媲美。仿真表明，在存在Kr晶种的情况下，高限制模式是可能的（横切面的功率保持在LH阈值以上）。