Also, for two-point ray tracing the index of refraction must be interpolated.
The results reaffirm that bound electrons can strongly influence the index of refraction of numerous plasmas over a broad range of soft x-ray wavelengths.
The waves are refracted according to the ordinary refraction law deduced for non-moving magnetoactive plasma.
At that stage many can be discharged to an optometrist for final refraction.
The so-calledphenomenon of sonic cut-off is an example of precursors forming by refraction in gases.
The objective of the present paper is to formulate the appropriate definition of shock impedance when refraction takes place at an arbitrary angle of incidence.
A well-known example is in the refraction of a shock at the edge of a free jet which is diffusing into an initially still atmosphere.
When the ratio is larger than one, the free and bound electrons are contributing with the same sign to the index of refraction.
