FUNCTION: e_sec_eff(Te) INPUT: Te: flt,fltarr electron temperature KEYWORDS pot flt,fltarr if fltarr, then n_elements(pot)=n_elements(te), default pot=0 tmax flt algorithm parameter, default tmax = 2.283 aa flt algorithm parameter, default aa = 1.35 emax flt algorithm parameter, default emax = 325 kk flt algorithm parameter, default kk = 2.2 sec_max flt algorithm parameter, default sec_max=2. te_sec flt algorithm parameter, default te_sec=2. PURPOSE: Returns the fractional secondary electron flux with energy > pot NOTES: CREATED BY: J.McFadden 09-05-31 LAST MODIFICATION: