COSMIC-RAY SCINTILLATIONS IN RANDOM MAGNETIC-FIELDS WITH NONZERO HELICITY

The cosmic ray scintillation theory is modified for the case of non di agonal IMF correlation tensor. We introduce the term 'helicity of cosm ic ray scintillation'. It describes rotation of the cosmic ray distrib ution function. It is shown that the helicity of the cosmic ray scinti llations and the IMF helicity are alike in nonresonant frequency band. The behaviour of the cosmic ray distribution function in resonant fre quency band is considered. The algorithm for two-canal spectral analys is based on an autoregressional method is developed. Empirical functio ns of helicity of the cosmic ray scintillation and of IMF helicity are obtained for the same time intervals. Observational results are found to be in a good agreement with the theory.