In support of next-generation fusion diagnostics, Oak Ridge National Laboratory has evaluated Hiden’s high-resolution quadrupole RGA approach for the ITER Diagnostic Residual Gas Analyser (DRGA), focusing on fast, selective measurement of light species in exhaust streams. The study shows how enhanced-resolution quadrupole operation can deconvolve closely spaced masses—most notably separating ⁴He from D₂—and explores the implications for quantification when additional gases such as neon are present. In this blog, we highlight the key results and what they mean for real-time helium and neon monitoring in fusion-relevant vacuum and exhaust-gas environments. Read more
