Badhwar G D, O'Neill P M
NASA Johnson Space Center, Houston, TX 77058, USA.
Adv Space Res. 1996;17(2):7-17. doi: 10.1016/0273-1177(95)00507-b.
A model for the differential energy spectra of galactic cosmic radiation as a function of solar activity is described. It is based on the standard diffusion-convection theory of solar modulation. Estimates of the modulation potential based on fitting this theory to observed spectral measurements from 1954 to 1989 are correlated to the Climax neutron counting rates and to the sunspot numbers at earlier times taking into account the polarity of the interplanetary magnetic field at the time of observations. These regression lines then provide a method for predicting the modulation at later times. The results of this model are quantitatively compared to a similar Moscow State University (MSU) model. These model cosmic ray spectra are used to predict the linear energy transfer spectra, differential energy spectra of light (charge < or = 2) ions, and single event upset rates in memory devices. These calculations are compared to observations made aboard the Space Shuttle.
描述了一种作为太阳活动函数的银河宇宙辐射微分能谱模型。它基于太阳调制的标准扩散 - 对流理论。通过将该理论与1954年至1989年观测到的光谱测量数据拟合来估计调制势,并考虑观测时行星际磁场的极性,将其与早期的克莱马克斯中子计数率和太阳黑子数相关联。这些回归线随后提供了一种预测后期调制的方法。将该模型的结果与类似的莫斯科国立大学(MSU)模型进行了定量比较。这些模型宇宙射线光谱用于预测线性能量转移光谱、轻(电荷≤2)离子的微分能谱以及存储设备中的单粒子翻转率。将这些计算结果与航天飞机上的观测结果进行了比较。