2 papers
physics.plasm-ph2026
Beam-Tracing-Based Quantitative Reconstruction of Density Fluctuations in QUEST Using Doppler Backscattering
T. Kinoshita, T. Tokuzawa, V. H. Hall-Chen +8
A three-channel X-/Ku-band Doppler backscattering (DBS) system has been developed and installed on QUEST for turbulence and electric-field measurements. In spherical tokamaks, the…
physics.plasm-ph2025
Enhanced beam transport via space charge mitigation in a multistage accelerator for fusion plasma diagnostics
M. Nishiura, K. Nakamura, K. Ueda +5
Efficient transport of high-current negative ion beams is critical for accurate plasma potential diagnostics using heavy-ion beam probe (HIBP) systems in magnetically confined fusi…