Corona discharge distribution

A pin corona discharge device consists of a stainless steel rod with a sharp conical tip as the corona emitter, a brass hollow cylinder as the corona case, and a perspex cup as the corona holder. Experimental results show that the pin corona current distribution is not uniform, which is one disadvantage of a pin corona device. 

Figure 14.5 A highly schematic view of the important components in a Van de Graaff accelerator. Positive ions created by a corona discharge near ground potential are swept by a moving belt to a similar corona contact attached to the inside of the high-voltage terminal. The positive ions then evenly distribute themselves on the surface of the terminal (Rrane, 1988).

The X — B emission spectrum of CN measured at 0.25 cm-1 resolution is shown in Figure 19. The CN radical in its B state was produced by coexpanding 100 torr of acetonitrile (CH3CN) with 1 atm of helium in the corona discharge source. The spectrum includes both the 0-0 and 1-1 transitions. An analysis of the rotational distributions in both the v = 0 and 1 levels revealed a Boltzmann temperature of... 

When ions produced by a corona discharge are deposited on a photoreceptor surface, charges of the opposite polarity are created in the substrate electrode. When equal charge distributions reside at the surfaces, the potential V is related to the surface charge density Os as... 

Table I. Product Distribution in the Corona Discharge of Benzene, 15kv.

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