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本文分析了用电流法或脉冲高度积分法的闪烁剂量仪对宇宙射线的相对灵敏度K_γ/k_c(K_γ、k_c分别为仪器对γ射线和宇宙射线的刻度因子)。给出了不同K_γ/K_c值下,由大水面上响应值 R_w、宇宙射线剂量率 D_c 及其屏蔽因子μ的偏差对测量室外(或室内)天然贯穿辐射剂量 D(或 D_(?))和有效剂量当量率 H_E(或(?))的偏差影响的估计公式。对室外γ辐射剂量率D_γ=4.0×10~(-8)Gy·h~(-1),D_c=3.0×10~(-8)Gy·h~(-1),H_E=5.8×10~(-8)Sv·h(-1),μ=0.9和仪器本底R_0=0.2×10~(-8)Gy·h~(-1)情况下,在k_γ/k_c=0.8时,R_w 和 D_c 偏差为10%,其对 D 和 H_B 所致偏差分别不大于1%和2.5%;当μ的偏差为10%,其对(?)和(?)的偏差分别不大于1%和2.5%。
In this paper, the relative sensitivity of cosmic rays to scintillation dosimeters by current method or pulse height integral method is analyzed. K_γ / k_c (K_γ, k_c are the scale factors of the instrument for γ rays and cosmic rays, respectively). The effects of natural radiation dose D (or D_ (?)) On the outdoor (or indoor) and the natural radiation (D_ (?)) At the different K_γ / K_c values are obtained from the response of the water surface R_w, cosmic ray dose rate D_c and its shielding factor μ Effective dose equivalent rate H_E (or (?)) Deviation of the estimated formula. The radiation dose rate of outdoor γ-ray was 4.0 × 10 -8 Gy · h -1, 3.0 × 10 -8 Gy · h -1 and H_E was 5.8 × 10 ~ (-8) Sv · h (-1), μ = 0.9 and instrument background R_0 = 0.2 × 10 -8 Gy · h -1, when k_γ / k_c = 0.8, R_w and The deviation of D_c is 10%, and the deviation between D and H_B is not more than 1% and 2.5% respectively. When the deviation of μ is 10%, the deviation from (?) And (?) Is not more than 1% and 2.5% .