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本文测定了3台闪烁型γ外照射剂量仪(国产FT-620和SG-102)对宇宙射线响应值随海拔高度的变化。结果表明,3台外照射剂量仪对宇宙射线响应值随海拔高度(365—1910m)的变化趋势与高压电离室基本相同,即各台仪器对宇宙射线的相对灵敏度(以高压电离室的归一)随海拔高度变化不大(最大相对偏差不大于18％);但各台仪器对宇宙射线的相对灵敏度有较明显的差别。
In this paper, we measured the response of cosmic ray to the change of altitude with three flicker type γ external dosimeters (domestic FT-620 and SG-102). The results show that the response of cosmic ray to cosmic ray changes with the elevation of high altitude ion chamber (365-1910m) basically the same, that is, the relative sensitivity of each instrument to cosmic ray ) Did not change much with the altitude (the maximum relative deviation was less than 18%); however, the relative sensitivity of the instruments to cosmic rays had obvious differences.