用自制的圆柱形钢壁充氩高气压电离室在三个不同海拔高度的湖面上,测量了宇宙射线电离量,进而外推出海平面上宇宙射线电离量值为(2.13±0.13)I。又根据在渤海海域的直接测量数据,与上述值比较,得出在渤海测量时所乘钢制船体的γ放射性影响为0.43I(相当于0.74μR/h)。对于测量中若干影响因素进行了初步分析和讨论,认为周围环境物质(例如钢制船体)中天然放射性核素的γ放射性和常压(1atm.)电离室室壁的α发射是影响海平面上宇宙射线电离量数据一致性的两个主要因素。 The ionization of cosmic rays was measured on three lake surfaces at different altitudes using a self-made cylindrical steel-walled argon-filled high-pressure ionization chamber. The ionization value of cosmic rays on the sea level was (2.13 ± 0.13) I. Based on the direct measurement data in the Bohai Sea, the γ radiation effect on the steel hull measured in the Bohai Sea was 0.43I (equivalent to 0.74μR / h) compared with the above values. A preliminary analysis and discussion of a number of influencing factors in the measurements suggest that gamma emission of natural radionuclides in ambient materials (such as steel hulls) and alpha emission at atmospheric pressure (1 atm.) Of the ionization chamber walls are critical for sea level The two main factors of cosmic ray ionization data consistency.