Appendix I THE TRUNCATED COMPOUND PARABOLIC CONCENTRATOR
In this appendix we give the derivations of the formulas in Section 5.3)We show in Figure I.1 the parabolic section in polar coordinates. For these coordinates we recall (see Appendix G) that the equation of the parabola is
Figure I.1 Construction for the truncated CPC.
If s is the arc length of the parabola, then
from Eq. (I.1))We have to integrate ...