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热解石墨夹持电子轰击式LaB6阴极试验
发表时间:2010-08-15 浏览量:1589 下载量:386
全部作者: | 张正齐,王秩雄,陈绳乾,黄建仁 |
作者单位: | 空军工程大学电讯工程学院 |
摘 要: | 研制出了一种热解石墨夹持的电子轰击式LaB6阴极,49 W的轰击功率就能把φ 5.00 mm×1.00 mmLaB6加热到1 560 ℃,LaB6中心与边缘的温差在10℃以内,1 545 ℃时测得φ4.00 mm的发射面发射束流370 mA,电子束轰击热解石墨,无LaB6蒸镀钨丝现象,轰击功率稳定。 |
关 键 词: | 物理电子学;电子轰击式LaB6阴极;回旋波保护放大器;回旋波微波整流器 |
Title: | Test of LaB6 cathode clamped by pyrolytic graphite and heated by electron bombardment |
Author: | ZHANG Zhengqi, WANG Zhixiong, CHEN Shengqian, HUANG Jianren |
Organization: | Telecommunication Engineering Institute, Air Force Engineering University |
Abstract: | A kind of LaB6 cathode clamped by pyrolytic graphite and heated by electron bombardment has been developed. Bombarding power of the cathode is 49 W which can heat LaB6 of φ 5.00 mm×1.00 mm to 1 560℃. The temperature difference between center and edge is less than 10℃. At 1 545℃ anode current is 370 mA for a LaB6 disk with diameter 4 mm. The electron beam bombards pyrolytic graphite, tungsten filament is not coated by evaporated LaB6 and bombarding power is stable. |
Key words: | physical electronics; LaB6 cathode heated by electron bombardment; cyclotron wave protector and amplifier; cyclotron wave microwave rectifier |
发表期数: | 2010年8月第15期 |
引用格式: | 张正齐,王秩雄,陈绳乾,等. 热解石墨夹持电子轰击式LaB6阴极试验[J]. 中国科技论文在线精品论文,2010,3(15):1562-1564. |
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