2017/04/11 by Chaofeng Sang, Huan Guo, H.Y. Guo +5 · 51 citations
Engineering · Materials Science · Physics and Astronomy · #Atomic physics #Baffle #Closure (psychology) #Computational physics #Deuterium #Divertor #Figure of merit #Fusion materials and technologies #Fusion power #Magnetic confinement fusion research #Nuclear engineering #Nuclear physics #Optics #Physics #Plasma #Power (physics) #Quantum mechanics #Superconducting Materials and Applications #Tokamak
paper · doi:10.1088/1741-4326/aa6548
published in Nuclear Fusion 57(5), 056043 (IOP Publishing)
openalex publication_date 2017/04/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
Using the SOLPS5.0 code, an assessment has been undertaken of the relative importance of two key aspects of divertor baffle geometry : (i) divertor closure , and (ii) field-target angle . The figures of merit (FOMs) have been taken to be achieving specified (low) values of electron temperature at the target, T et , and parallel power flux density at the target, q ‖t , at the lowest possible ‘upstream’ density, n e,sep,OMP , for a given power input. As expected, it was found that increased closure for both orthogonal targets and small glancing-angle targets make for a better divertor, based on these FOMs. It was also found that the combination of these aspects is significantly more effective than either aspect separately. The latter appears to be related to a strong correlation between T et and deuterium gas density at the target, which is the subject of a companion paper (Stangeby P.C. and Sang C.F. 2017 Nucl. Fusion 57 056007).