Radiation losses are measured as a line integrated quantity from the plasma, on ASDEX Upgrade using foil bolometers. Based on these measurements, the computation of the radiated power from either the whole volume or any sub region requires post processing including key assumptions. A new algorithm to improve this computation was recently developed and benchmarked. The algorithm is based on a routinely used tomography method and allows for local radiative events to be properly taken into account. It is compared to two other methods used at ASDEX Upgrade: the generic one based on flux tube symmetry and a more specific method using a 1D fit to compute the radiation excluding the divertor. In benchmarks with phantom radiation distributions, the new method shows a significantly better accuracy of −2.9 5.2% in comparison to the previous algorithm accuracy of −27.8 21.4% (average standard deviation on all test cases of the benchmark). The new code also allows the systematic computation of the radiated power from four sub regions, such as the divertor, the main chamber and inside the separatrix.

在 ASDEX Upgrade 上，使用箔辐射热计测量辐射损失作为来自等离子体的线积分量。基于这些测量，计算整个体积或任何子区域的辐射功率需要包括关键假设在内的后处理。最近开发了一种改进这种计算的新算法并对其进行了基准测试。该算法基于常规使用的断层扫描方法，并允许适当考虑局部辐射事件。将其与 ASDEX 升级中使用的其他两种方法进行比较：基于通量管对称性的通用方法和使用一维拟合计算不包括偏滤器的辐射的更具体方法。在具有幻影辐射分布的基准测试中，新方法显示出明显更好的准确度 -2.9 5。2% 与之前的算法精度 -27.8 21.4%（基准的所有测试用例的平均标准偏差）相比。新代码还允许系统地计算来自四个子区域的辐射功率，例如偏滤器、主室和分界线内部。