I can't find a free version (much love to anyone who hosts) but Matt Lacey's energy density estimator is always good for situations like these: http://lacey.se/

I can't find a free version (much love to anyone who hosts) but Matt Lacey's energy density estimator is always good for situations like these: http://lacey.se/apps/cell-energy/ http://lacey.se/apps/cell-energy/