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采用通用蒙特卡罗粒子输运程序ＭＣＮＰ／３８计算低环径比Ｔｏｋａｍａｋ（紧凑环或球形环）聚变堆第一壁及中心导体上的中子壁负荷分布和核热沉积分布，并与常规Ｔｏｋａｍａｋ堆第一壁上中子壁负荷分布和核热沉积分布进行比较、分析。结果表明，在中子壁负荷归一化为１ＭＷ／ｍ２时，与常规Ｔｏｋａｍａｋ相比，在低环径比Ｔｏｋａｍａｋ堆第一壁及中心柱表面上中子壁负荷分布峰值并不比常规Ｔｏｋａｍａｋ堆第一壁上的峰值高，而且低于低环径比Ｔｏｋａｍａｋ堆整个第一壁上的平均值，而中心柱上的核热沉积峰值稍高于常规Ｔｏｋａｍａｋ堆第一壁上的核热沉积峰值，但对较高中子壁负荷情况，中心导体柱上的核热沉积和辐照损伤仍可能是比较严重和值得特别研究的问题。
The general Monte Carlo particle transport program MCNP / 38 was used to calculate the distribution of neutron wall loads and the distribution of nuclear heat deposits on the first wall and the center conductor of a Tokamak (Compact or Spheroidal Ring) fusion reactor, and compared with the conventional Tokamak The first wall neutron wall load distribution and nuclear heat deposition distribution were compared and analyzed. The results show that when the neutron wall load is normalized to 1MW / m2, the peak value of the neutron wall load distribution on the first wall and the center column of Tokamak reactor with low annular ratio is no more than that of the conventional Tokamak The peak on one wall is higher and lower than the average of the low ring radius over the entire first wall of the Tokamak stack while the peak of nuclear heat deposition on the center column is slightly higher than the peak of nuclear heat deposition on the first wall of a conventional Tokamak stack, However, for higher neutron wall loadings, nuclear thermal deposition and radiation damage on the center conductor post may still be serious and deserve special study.