Design And Implementation Of EB Curing Accelerator Tube For Low Energy Electron Accelerator

With the development of new environmental technologies and efficient coating EB ink curing technology,the demand for EB curing low energy electron accelerator is also increasing year by year rise,but that the technology has not been promoted in our country,which is an important reason for curing the ink key equipment low energy electron accelerator technology is controlled foreign companies,the price is dear.Thus,independent design and production of the accelerating tube will be to complete the localization of equipment and reduce the cost of equipment.In the design and engineering implementation,in order to reduce costs,ensure performance for the purpose.To consider and optimize the design of the accelerating tube optimization focuses on two aspects from the electron optics and high voltage insulation.For electro-optical design theory,the article from the basic theory,points out the influence of several parameters in electron optics accelerating tubes structure,and pointed out that the closer to emission cathode electrode more sensitive to the entire electro-optical rats.In the design of concrete structures to learn from their predecessors is designed as a starting point,use of relevant software emulation.By adjusting the opening of the accelerating tube electrode diameter size values obtained by the optimal structure.The structure of the output of the electron beam within 3 meters or longer field free drift space beam diameter is very small.For high voltage insulation design,start with different insulation environment will be divided into vacuum insulation,insulated,high-voltage gas-insulated three parts.Then the basic theory and empirical formula to high voltage breakdown is elected on the basis of a suitable electrode material,solid insulating material and the insulating gas.After using the method of finite element simulation has been accelerating electric field adhesive tube concave fillet of triple junction is less than convex fillet conclusions.But also on the field intensity distribution of the entire structure has been optimized.And to determined the operating pressure of the insulating gas according to the final optimization results.Acclerating-tube is implemented using the bonding method.The article adhered to achieve accelerated tube problems that require attention been summarized,and a combination of some of the relevant literature on the problems been analyzed for better adhesion of the accelerating tube made guidance.After the completion of the final prototype manufacturing,under limited conditions related to the performance of the accelerating tube was tested,the results of the final test of the accelerating tube sample meet the design expectations.