Technical index of ultraviolet sensor used for detecting shooting

A standard-type blind ultraviolet(UV) detection sensor was used to conduct the experiment of detecting on the flames shooting, the experimental data was analyzed . The technology index of the UV sensor which was depended on to detect shot flame spectrum was proposed, by combining with ultraviolet light transmission characteristics. In order to detect the rifle firing away from 1000m without the considering of the incident angle and response time of the sensor, the response rate and response area product of the UV sensor should achieve at least 0.002 AW-1m2, then the response current of sensor is up to 100nA which can be obviously detected. According to a prototype scheme of gun-shot detection device, the technology indices of the UV sensor was analyzed, such as transmittance, the feature of solar blind, UV responsivity , incident angle and short circuit,etc. The molecular beam epitaxy was used to prepare a kind of MgZnO UV detection sensors, and furthermore, its transmittance, ultraviolet spectrum response rate and response time were measured. After further optimization of performance, it is expected to meet the requirements of shot detection.