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This paper describes the design method of broad band coaxial termination load. It is shown that the better broad band performance can be obtained using the matched attenuation network formed by depositing Ta film resistor, as a microwave absorbent, with grid pattern. Some measured results are given: VSWR≤1.25, average withstand power P≥2W from DC to 18GHz, 本文叙述了宽带同轴终端负载的设计方法.指出利用沉积有网格图形的钽薄膜电阻的匹配衰减网络作微波吸收体,可以获得比较好的宽带性能.最后测量结果给出:在DC~18GHz频率范围内,电压驻波比VSWR≤1.25,承受平均功率P≥2W. Irradiation test of the polyimide and polyamide-imide electric-magnetic wireshave been carried out in the Swimming-Pool Reactor.After irradiation,theestimated neutron flux was 8.0×10~(18) thermal neutrons/cm~2 and 1.7×10~(18) fastneutrons(E≥1MeV)cm~2.The insulation resistance,induced current and capab-lity to withstand power frequency high-voltage of wires have been investigatedduring irradiation.The exeminations of irradiated wires have been made in themechanical properties.The results of these tests... Irradiation test of the polyimide and polyamide-imide electric-magnetic wireshave been carried out in the Swimming-Pool Reactor.After irradiation,theestimated neutron flux was 8.0×10~(18) thermal neutrons/cm~2 and 1.7×10~(18) fastneutrons(E≥1MeV)cm~2.The insulation resistance,induced current and capab-lity to withstand power frequency high-voltage of wires have been investigatedduring irradiation.The exeminations of irradiated wires have been made in themechanical properties.The results of these tests have showed that the two kindsof electric-magnetic wires are satisfactory in the irradiation. 在反应堆内对聚酰亚胺和聚酰胺酰亚胺电磁线进行了辐照试验。所达到的中子积分通量为:热中子8.0×10~(18)中子/厘米~2,快中子(能量≥1MeV)1.7×10~(18)中子/厘米~2。研究了它们的绝缘电阻、感应电流、耐交流工频电压性能和辐照后的机械性能。结果表明,这两类电磁线都具有良好的耐核辐照能力。 Upgrading crisis-withstanding power, an important part that constitutes our Party's governing power, is regarded as one of the two main tasks of our Party. Our society has entered a society of high risks, so we should take account of the risks in a strategic view stand and acknowledge the dangers of the risks. We must take precautions to withstand the risks such as categorizing risks, enhancing national people' sense of risks, establishing risks alarm system, and formulating risks-withstanding... Upgrading crisis-withstanding power, an important part that constitutes our Party's governing power, is regarded as one of the two main tasks of our Party. Our society has entered a society of high risks, so we should take account of the risks in a strategic view stand and acknowledge the dangers of the risks. We must take precautions to withstand the risks such as categorizing risks, enhancing national people' sense of risks, establishing risks alarm system, and formulating risks-withstanding schemes so as to consolidate our Party's risk-withstanding power. 提高抵御风险能力是我们党面临的两大历史性课题的重要内容之一,也是加强党的执政能力建设的重大任务之一,我国已进入风险社会,我们必须从战略的高度对待风险问题,深刻认识风险危害,善于区分风险类型,增强全民风险意识,建立风险预警机制,制定风险抵御方案,采取必要保障措施,切实提高抵御风险的能力。
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