Device for online observation and removal of dust on the surface of transmission mirror and its implementation method

Abstract

The invention discloses an online observing and removing device for dust on surfaces of transmission mirrors and an implementation method of the online observing and removing device. The device comprises a blowing system, a lighting system, a dust collecting system and three same supporting and positioning systems. The online observing and removing device and the implementation method thereof have the advantages that the device is ingenious in design and simple and easy to operate, the dust on the surfaces of the transmission mirrors can be detected and removed online in real time, and observation accuracy is high; removal efficiency is high, and secondary contamination to the surfaces of the transmission mirrors and contamination to other optical components are avoided; the device is applicable to the transmission mirrors placed at any angles.

Description

technical field [0001] The invention relates to a high-power laser device, in particular to a device for on-line observation and removal of dust on the surface of a transmission mirror in a high-power laser device and an implementation method thereof. Background technique [0002] The high-power laser facility is a laser facility that provides extremely high temperature and pressure conditions for inertial confinement fusion and high-energy physics research. The transmission mirror is the final key link that guides the beam from the main amplifier to the target chamber and forms the optical path. At present, the energy density that these transmission mirrors need to bear in the process of use is several J / cm 2 , but in the future these transmission mirrors need to bear an energy density of more than ten J / cm 2 , or higher, in this case, strict cleaning control is necessary to prevent damage to the surface of the transfer mirror and prolong the service life of the transfer ...

AI Technical Summary

Problems solved by technology

The accuracy of this method for observing pollutants has a lot to do with light, and the observation accuracy is not high, and hard pollutants often scratch the surface of the transmission mirror due to uneven force when wiping manually. For this reason, the Livermore National Laboratory in the United States A set of on-line observation and removal system for impurities on the surface of transmission mirror is designed for NIF device

Although the system can find particles with a size of 10um and larger with the help of a high-power bar lamp, the bar lamp is expensive to manufacture; although the system can almost 100% remove particles above 30um with the help of high-speed airflow, the particles after purging are returned. environment, causing pollution to other optical components, and secondary pollution on the surface of the transmission mirror is unavoidable

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