Testing a prediction model for the H-mode density pedestal against JET-ILW pedestals

Nuclear Fushion

article

S. Saarelma¹  J.W. Connor¹  P. Bilkova²  P. Bohm²  A.R. Field¹  L. Frassinetti³  R. Fridstrom³  A. Kirk¹ 

[1] United Kingdom Atomic Energy Authority, Culham Centre for Fusion Energy, Culham Science Centre;Institute of Plasma Physics of the CAS;Division of Fusion Plasma Physics, KTH Royal Institute of Technology

关键词: pedestal;    density;    prediction;    JET;   

DOI  :  10.1088/1741-4326/acc084

来源: Institute of Physics Publishing Ltd.

【 摘 要 】

The neutral ionisation model proposed by Groebneret al(2002Phys. Plasmas92134) to determine the plasma density profile in the H-mode pedestal, is extended to include charge exchange processes in the pedestal stimulated by the ideas of Mahdaviet al(2003Phys. Plasmas103984). The model is then tested against JET H-mode pedestal data, both in a 'standalone' version using experimental temperature profiles and also by incorporating it in the Europed version of EPED. The model is able to predict the density pedestal over a wide range of conditions with good accuracy. It is also able to predict the experimentally observed isotope effect on the density pedestal that eludes simpler neutral ionization models.

【 授权许可】

Unknown