Average tracks per cell nucleus per year, dose (mGy/year), and percent contribution of particles to dose for reference field during 1-year solar minimum and normalized to 500 mGy.

Average tracks per cell nucleus per year, dose (mGy/year), and percent contribution of particles to dose for reference field during 1-year solar minimum and normalized to 500 mGy.涵盖1年太阳活动极小期内参考辐射场的三项参数：每年每个细胞核的平均径迹数、剂量（毫戈瑞/年，mGy/year）以及粒子对剂量的贡献百分比，且所有参数均归一化至500毫戈瑞。