UNCLASST FIED It. Discussion The above is a sample calculation under specific assumed conditions. It is seen that the smaller particles charge primarily by diffusion. The assumption of 1/2 cm as the radial gives a specific value of No in the calculation of the charge. It is to be noted that as this vale increases, the charge q will decrease, but the radial distance to be traversed also decreases compensating for this effect. A repetition of these calculations mst also be made for other altitudes. These, together with the measured efficiencies, will be included in the final report. 85. UNCLASSI FI ED ££