Abstract

The design of this linear ultraviolet (UV) flashlamp ensures an equilibrium between the mercury cathode erosion and the return of mercury atoms from the discharge, making the cathode self-replenishing. The lamp, which requires a simmer current of only 0.3 A, can operate in the region of high pulse peak currents and current densities where a conventional xenon flashlamp experiences a rapid deterioration. The lamp has a minimal length of 7.5 cm and can be loaded up to 100 W/cm. It has demonstrated about 30% output in the UV region and has proven efficient for dissociation of organic compounds and for disinfection, and has promise for other photochemical applications.

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