Laboratory was contaminated by tritium since TiT radioactive source was used continually. Measure used tritium contamination apparatus discovered that region sheltered was contaminated more seriously than region exposed. It is a abnormal phenomenon, analysis found that the region contaminated seriously was irradiated by hydrogen discharge source. The abnormal phenomenon likely relate to hydrogen discharge source. The article present an hypothetical explanation.%由于在实验过程中频繁操作氚钛源(TiT源),造成了实验室氚污染.专门的氚污染监测机构用氚表面污染测量仪进行监测,发现有遮挡物遮挡、不容易污染到的地方污染水平比容易污染到的地方还高,这是不合常理的一种异常现象.经过分析发现,污染异常的地方常年受氢(氘)气放电源照射,这种异常很可能与气体放电有关,论文给出了假设性解释.
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