For the purpose of investigating the effect of a wide discharge gap (4 mm)
on ozone generation, a UV light absorption measurement technique has been u
sed to determine the spatial distribution of ozone concentration. A glow di
scharge at atmospheric pressure was produced by a double discharge method w
ith a pair of metal-to-metal electrodes. Efficient and uniform ozone genera
tion has been accomplished. The obtained ozone concentration near the catho
de is about 1.25 times higher than that at the center of the main gap. The
rate constant k(1) for O + O-2 + M -->(k1) O-3 + M yields the values of (2.
0-2.7) x 10(-34) cm(6) molecule(-2) s(-1) from the ozone growth curve measu
red using the wavelength of 254 nm.