Study on Instantaneous Temperature Change Characteristics of High-power Microwave Tube Collectors
With the increasing pulse power,average power and the miniaturization demand of micro-wave tube,the collector for receiving electron beams is facing more severe heat dissipation challenge.In order to study the transient characteristics of the heat transfer in the collector after being bombarded by e-lectron pulses,simulation analysis on the temperature distribution over time of the collector after being loaded with high-frequency instantaneous pulse heat flux is conducted.The temperature changes of the col-lector under pulsed heat flow loading and time-averaged heat flow loading are analyzed and compared,and the effects of different materials,structural parameters and heat dissipation conditions on the collector temperature distribution are analyzed.An empirical formula is proposed to quickly determine whether the design of the collector is reasonable and whether the collector will overheat during operation,which can ef-fectively guide the selection of collector material,structure design,and heat dissipation method.
High power microwave tube collectorTransient characteristicsTemperature changeEmpirical formula
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