A5074284630- Fusion materials and technologies
- Magnetic confinement fusion research
- Superconducting Materials and Applications
- Nuclear reactor physics and engineering
Williams (United States)
2024
William & Mary
2024
CEA Cadarache
2020
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2020
Abstract This paper investigates the role of ionization on pedestal structure using both measurements and modeling for H-mode plasmas DIII-D Alcator C-Mod to enhance our ability predict behavior in future pilot plants. The impact neutral penetration depth density is investigated dimensionally matching hydrogen deuterium discharges at low high electron density. Lyman- α diagnostic show that neutrals penetrate deeper inside plasma field side, while similar isotopes. However, as opaqueness...
The LLAMA (Lyman Alpha Measurement Apparatus) pinhole camera diagnostic had previously been deployed on DIII-D to measure radial profiles of the Lyman-α (Ly-α) deuterium neutral line brightness across plasma boundary in lower chamber infer density and ionization rate profiles. This system has recently upgraded with a new head, named ALPACA, that also encloses two cameras duplicates views upper chamber. Similar LLAMA, ALPACA provides times 20 lines sight, viewing edge inboard outboard sides...
Abstract Midplane separatrix density is a crucial parameter in tokamaks since it strongly impacts divertor conditions. Scaling midplane density, n e , SEP and pedestal PED as function of engineering parameters such auxiliary heating P injected toroidal magnetic field B T plasma poloidal current I p are relevant to observe the effect tuning these on, for example, quality confinement regime governed by respectively. Thus, dataset JET H‐mode pulses performed with Iter like wall (ILW) has been...