FAST-WARM-UP AND SUPER-FAST-WARM-UP CATHODES USING NOVEL APG APBN HEATERS

被引：5

作者：

CATTELINO, MJ ^{[1
]}

MIRAM, GV ^{[1
]}

SMITH, B ^{[1
]}

机构：

[1] USA,COMMAND LAB,FT MONMOUTH,NJ 07703

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 1991年 / 38卷 / 10期

关键词：

D O I：

10.1109/16.88505

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A novel fast-warm-up heater/cathode approach for microwave tubes is described. Anisotropic pyrolytic graphite (APG) deposited onto anisotropic pyrolytic boron nitride (APBN) is used to fabricate heater wafers. Both planar and spherical heaters can be produced. APG/APBN characteristics are discussed along with methods for heater fabrication. Measured fast-warm-up thermal cycling data are presented for 4- to 60-mm cathode diameters. Fast-warm-up times of 1 to 2 s for 4- to 6.4-mm-diameter cathodes and less than 20 s for 60-mm-diameter cathodes are demonstrated with highly reliable thermal cycling performance.

引用

页码：2239 / 2243

页数：5