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在更高海拔(大于5 000 m)开展γ暴的水切伦科夫探测,可以使阈能降至50 Ge V。但海拔5000 m处气候恶劣,水介质防冻是探测器稳定运行的最大难题。为此,在普玛江塘乡开展了小型水探测器实验研究水介质的防冻问题,实验表明采取一定的保温措施,可以使水探测器不结冰。并以傅里叶定律为基础建立了单元探测器的热交换模型,这一模型能很好地描述实验数据,预期了大型水切伦科夫探测器的温度变化曲线。
At a higher altitude (> 5 000 m), a γ-storm water Cherenkov probe can reduce the threshold energy to 50 GeV. However, at an altitude of 5000 m at a poor climate, water-based antifreeze detector is the biggest problem of stable operation. To this end, Puma Jiangtang carried out a small water probe experimental study of antifreeze water problems, experiments show that taking some insulation measures, you can make the water detector does not freeze. Based on Fourier’s law, the heat exchange model of element detector is established. This model can well describe the experimental data and predict the temperature change curve of a large water Cherenkov detector.