What is meant by negative resistance in flash lamps?
What is an arc lamp? Arc lamps are gas discharge devices designed for continuous radiation. Krypton filled lamps offer high Nd:YAG pumping efficiency because the emission spectra of the lamp is close to the absorption spectrum of the lasing medium. What is triggering? Triggering is the initiation of a discharge through a strobe lamp or arc lamp. There are four methods of triggering a flash tube. They are over voltage triggering, series triggering, external triggering and parallel triggering. The most flexible and commonly used design is external triggering. . Explain over damped, under damped and critically damped circuits in flash lamp operation. Over damped circuit produces current pulse with low peak value. Under damped circuit generates current pulse with oscillatory nature, resulting in current reversing and swinging negative current. Critically damped circuit produces ideal current pulse of high peak value with no current reversal. Explain over voltage, external, parallel and ser
