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首页> 外文期刊>Review of Scientific Instruments >Compact coaxial diode electron beam system: Carbon cathodes and anode fabrication techniques
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Compact coaxial diode electron beam system: Carbon cathodes and anode fabrication techniques

机译:紧凑型同轴二极管电子束系统:碳阴极和阳极制造技术

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A coaxial electron beam generator has been developed which produces current densities of 1–3 A cm-2 at the anode foil, is compact (Marx ∼0.2 m3) and yet utilizes an anode of 50 cm length and 250 cm3 volume. Carbon cathodes (carbon fibers and graphite felt) tested on this system have been found to be superior to metal foil blades for current risetime and peak current. Techniques for readily fabricating cylindrical anodes of arbitrarily large volume and length are also described. The use of this system in exciting Ar/5% N2 gas mixtures has resulted in intense laser emission (Emax∼2 mJ) on the (0,3) transition of the N2 (C→B) band at 405.9 nm. Also, coaxial photolytic experiments involving XeF2 and a buffer gas have yielded strong XeF emission on the B→X (ultraviolet) and C→A (blue‐green) bands.
机译:已经开发出同轴电子束发生器,该阳极束在阳极箔上产生1–3 A cm-2的电流密度,结构紧凑(Marx约为0.2 m3),但使用的阳极长度为50 cm,体积为250 cm3。已发现在该系统上测试的碳阴极(碳纤维和石墨毡)在电流上升时间和峰值电流方面优于金属箔叶片。还描述了易于制造任意大体积和大长度的圆柱形阳极的技术。该系统在激发Ar / 5%N2气体混合物中的使用导致在405.9 nm的N2(C→B)波段的(0,3)跃迁上产生强烈的激光发射(Emax〜2 mJ)。同样,涉及XeF2和缓冲气体的同轴光解实验在B→X(紫外线)和C→A(蓝绿色)波段上产生了很强的XeF发射。

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