大尺寸浸渍钪阴极的研制

IEEE International Vacuum Electronics Conference. International Vacuum Electronics Conference Pub Date : 2014-04-22 DOI:10.1109/IVEC.2014.6857490

Hui Wang, Zhiqiang Yu, Wensheng Shao, Ji Li, Y. Men, A. Yang, L. Xia, Jinshui Shi

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引用次数: 1

摘要

在BVERI中制备了大尺寸(Φ100, 135和155mm)的钪阴极，并在LIA的喷油器系统中进行了测试。结果表明，浸渍钪阴极具有较好的发射性能，可以作为LIA的电子源，满足LIA的要求。Φ135和Φ155mm阴极组件的脉冲电流均大于2000A，电流密度大于14a /cm2。同时，该阴极在单脉冲和三脉冲模式下均具有良好的发射稳定性和重复性。

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Development of big-size impregnated scandate dispenser cathode

The big-size (Φ100, 135, and 155mm) scandate dispenser cathodes have been fabricated in BVERI and tested in injector system of LIA. The results show that impregnated scandate cathodes which have better emission performance can be applied as the electron source in LIA and satisfied the requirement of the LIA. The pulse current of both Φ135 and Φ155mm cathode assemblies is more than 2000A and the current density is more than 14 A/cm2. At the same time, the cathode has good emission stability and repetition with respect to single pulse and three-pulse modes.

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IEEE International Vacuum Electronics Conference. International Vacuum Electronics Conference

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