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栅控电子枪发射度测量装置见图1。测量方法是用单缝在不同的束流位置取样,用图1缝-针型发射度测量示意图1.电子枪阴极;2.栅极;3.阳极;4.感应束流监督器;5.漂移管Ⅰ;6.导向线圈C.D.;7.透镜Ⅰ;8.阀门;9.漂移管Ⅱ;10.导向线圈A.B.;11.透镜Ⅱ;12.磁屏蔽板;13.狭缝;14.探针;15.二次电子抑制极;16.发射度
Gated electron gun emission measurement device shown in Figure 1. The measurement method is to take a single slit at a different beam sampling position, with Figure 1 seam - needle emission measurement diagram 1 electron gun cathode 2 grid 3 anode 4 sensing beam supervisor 5 drift Tube I. guide coil CD 7. lens I 8. valve 9. drift tube II 10. guide coil AB 11. lens II magnetic shield plate 13. slit 14. probe 15 secondary electron suppression pole 16 emissivity