Fast Identification of Recycling Properties of Wall-Released Hydrogenic Neutrals in Divertor Plasma

摘要

A new bipartition neutral transport model was developed for quick identificationof the recycling properties of the wall-released hydrogenic neutral particles in the vicinity of thedivertor target plate.Based on this model,the numerical calculation results are fairly consistentwith the results obtained with the ‘multi-generation method’.This model can not only be utilizedto provide a source term from neutral transport calculations for the B2 edge plasma transportcode,which has been used to simulate edge plasma transport of an HL-2A divertor configuration,but can also be specifically applied for fast classification of the divertor plasma as high recycling orlow recycling.Our results also show that the transmissivity is lower in the high-recycling regime.