Multi machine scaling of fuel retention in 4 carbon dominated tokamaks

作者：Tsitrone E^*; Pegourie B; Marandet Y; Artaud J F; Brosset C; Bucalossi J; Corre Y; Dittmar T; Gauthier E; Languille P; Linez F; Loarer T; Martin C; Roubin P; Kallenbach A; Krieger K; Mayer M; Neu R; Rohde V; Roth J; Rubel M; Brezinsek S; Kirschner A; Kreter A; Litnovsky A; Philipps V; Wienhold P; Likonen J; Coad P; Lipschultz B; Doerner R

来源：Journal of Nuclear Materials, 2011, 415(1): S735-S739.

DOI：10.1016/j.jnucmat.2011.01.132

In order to benchmark predictions for the in vessel tritium inventory in ITER, a survey of fuel retention measured in 4 carbon dominated tokamaks (TEXTOR, ASDEX Upgrade in the 2002-2003 carbon configuration, Tore Supra and JET) was performed, showing retention rates from similar to 1 g D/h in TEXTOR (L mode, limiter machine) up to similar to 6-12 g D/h in AUG (H mode, divertor machine). A simple scaling used for ITER predictions is applied for comparison with experimental values: (1) estimate of wall fluxes, (2) estimate of the gross carbon erosion, (3) estimate of the net erosion/redeposition assuming a redeposition fraction and (4) estimate of the retention rate using D/C ratio scalings. The validity of each step is discussed, showing that this approach yields the right order of magnitude, but tends to underestimate the experimental values unless a high wall flux, a low local redeposition fraction and/or a high D/C ratio are used.

• 出版日期2011-8-1
• 单位中国地震局