A new analysis technique for Balmer line spectroscopy that enables recombination rate (particle sink) and ionization rate (particle source) inference in a closed divertor configuration is reported. Bayesian inference is employed to systematically utilize all available information from multiple Balmer lines and constrain parameter ranges by using prior knowledge about plasmas. While a closed-divertor facilitates detachment, neutral plugging typically leads to large spatial variations in plasma parameters. A forward model is developed to take into account non-uniformity in the plasma parameters and applied to test data generated by divertor plasma simulations. It is shown that the forward model robustly provides particle source and sink inference over a wide parameter range. In addition, the precision improves as more Balmer lines are resolved simultaneously. The new analysis technique is also applied to an L-mode ASDEX Upgrade plasma in the high-recycling regime. The inferred qua...

中文翻译：

---

使用Balmer线光谱学的封闭偏滤器中粒子源和汇的贝叶斯推断

报道了一种用于Balmer线光谱学的新分析技术，该技术能够在封闭的偏滤器配置中推断出复合速率（粒子沉）和电离速率（粒子源）。贝叶斯推理被用来系统地利用来自多个巴尔默线的所有可用信息，并通过使用有关等离子体的先验知识来约束参数范围。虽然封闭的分流器便于分离，但中性堵塞通常会导致血浆参数发生较大的空间变化。开发正向模型以考虑等离子体参数的不均匀性，并将其应用于由偏滤器等离子体模拟生成的测试数据。结果表明，前向模型可以在很宽的参数范围内可靠地提供粒子源和汇的推断。此外，随着同时解决更多巴尔默线，精度提高。这项新的分析技术还应用于高回收率的L型ASDEX升级等离子体。推断的准...