Radiation field I(μ,r) as a function of the angular variable μ and three chosen radii r. The vertical dotted line denotes μc, the limiting value of μ under which the inner emitting surface is seen at the outer boundary r = 3. The discontinuity is accurately captured (i.e. the solution shows no oscillations).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.