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已利用奥杰能谱学鉴定表面化学组成的能力,来评价大功率微波管浸渍钡钨阴极的好坏。用奥杰能谱学与逸出功测量法研究了发射好的阴极与发射差的阴极的表面,其结果解释了从行波管中、对由于发射特性差而剔除出的阴极的失效方式所作的分析。此计划所鉴定的发射差的阴极大多数取自制成的电子枪,它们曾经在为通讯技术卫星计划所研制的200瓦行波管上使用过,并已报废。测量结果表明,人们在发射差的阴极上至少观察到两种失效方式:①阴极表面的化学污染;②阴极表面层只有少数部分为钡所复盖。
Aojie spectroscopy has been used to identify the surface chemistry of the ability to evaluate the power microwave barium impregnated barium tungsten cathode is good or bad. The surface of a cathode with good emission and a cathode with poor emission was studied by Aoge spectroscopy and work-on-calorimetry. The results explained that the failure mode of the cathode, which is removed due to the poor emission characteristics, from the traveling wave tube Analysis. Most of the poorly-emitting cathodes identified by this program were taken from electron guns made and used and were scrapped on the 200-Watt traveling wave tube developed for the Communications Technology Satellite program. The results show that at least two modes of failure have been observed on poorly emitting cathodes: chemical contamination of the cathode surface; and only a minority of the cathode surface layer is covered by barium.