Transversal magnetic field effect on the populations of excited states of helium atoms in nanosecond discharge

Mechanism's effect of transversal magnetic field on the populations of excited states of He atoms has been investigated. Furthermore, the dependencies of complete absorption of He(I) spectral line transition 3(3)P(0,1,2)-2(3)S(1) on optical plasma density are calculated by numerical methods taking into consideration the fine-structure and Zeeman splitting schemes of the spectral lines. Using the calculated values and experimental results, the dynamics of the populations of He(I) metastable states 2(3)S(1) of the He nanosecond discharge are discussed.