背景与目的：用固定野技术行特大野照射时，很难得到理想的组织剂量分布，而平移扫描式照射却能做到。

Background &Objectives:It was difficult to get a good tissued ose distribution using fixed field irradiation technique in large field. But the translating scanning beam irradiation can make it.

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在软件模型的基础上分别计算了不同能量的中子进行治疗时的肿瘤及正常组织剂量分布，并对计算结果进行了分析。

The neutron absorbed dose rate distributions for tumour and natural histiocyte are calculated respectively based on this software and the results are analyzed.

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为获悉种籽源植入后在肿瘤及其周边组织中吸收剂量分布。本文编制了“种籽源治疗计划系统”ITPSS 1.0。

For obtaining the distribution of absorbed dose in tumor and surrounding tissues after implant of seeds, the software, Interstitial Treatment Planning System of seeds (ITPSS 1.0) was programmed.

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