This paper presents techniques for evaluating the radiated power in JET disruptions. Disrupting plasmas are shown to have non-axisymmetric radiation profiles, motivating the re-evaluation of the standard techniques for calculating the total radiated power at JET using bolometry. Four single-channel bolometers at different toroidal locations are exploited to quantify the radiation asymmetry. Toroidal radiation peaking factors integrated over the entire disruption of up to 1.5 have been observed when varying the quantity of neon in pellets used in disruptions mitigated by shattered pellet injection. Using synthetic bolometer diagnostics developed with the Cherab spectroscopy modeling framework, we can estimate the systematic error on total power calculations for relevant radiation profiles and improve estimates of the total radiated power. We show that the component of the systematic error on the total power due to the poloidal radiation profile can be reduced from 70% to 10% with suitable assumptions about the structure of the poloidal profile.

中文翻译：

---

确定JET的SPI缓解中断中的辐射功率的方法

本文介绍了用于评估JET干扰中的辐射功率的技术。已显示破坏性等离子体具有非轴对称辐射曲线，这促使人们重新评估使用辐射热测定法在JET上计算总辐射功率的标准技术。利用四个位于不同环形位置的单通道辐射热计来量化辐射不对称性。当改变颗粒中的氖气量时，可以观察到在整个破裂过程中累积的环形辐射峰值因子高达1.5，这些颗粒用于通过破碎的颗粒注入缓解的破裂中。使用由Cherab光谱建模框架开发的合成辐射热计诊断程序，我们可以估算有关辐射曲线的总功率计算中的系统误差，并改善总辐射功率的估算值。