function barrel_make_standard_electron_energies,slow=slow
e0 = barrel_make_standard_energies(slow=slow)
if keyword_set(slow) then e=e0 else begin
e = fltarr( (n_elements(e0)-1)*3 + 1 + 40 )
for i=0, n_elements(e0)-2 do $
e[3*i : 3*i + 2] = e0[i]+(e0[i+1]-e0[i])*findgen(3)/3.
e[3*i] = e0[i]
for j=1,40 do e[3*i+j] = e[3*i] + j*100.
endelse
return,e
end