The first indicator based on liquid metal multiple tip field emitter

IVESC 2004. The 5th International Vacuum Electron Sources Conference Proceedings (IEEE Cat. No.04EX839) Pub Date : 2004-09-06 DOI:10.1109/IVESC.2004.1414244

E. O. Popov, A. Pashkevich, A.V. Vitugov

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Abstract

Liquid metal multiple tip (LMMT) electron emitter was created by pulling liquid metal (indium gallium eutectic) through holes in a nuclear membrane of polyethylene terephtalate (Popov et al., 2001), The track membranes presently employed in selective clean-up filters are obtained by bombarding a film with heavy ions having energy of several tens of megaelectron volts. After irradiation, the film is illuminated by ultraviolet light and subjected to chemical etching. These membranes are produced by cyclotron of Physico-technical Institute. Liquid metal multiple tip field emitters have some advantages in comparison with solid-state field emitters and explosive electron emitters: unlimited life expectancy, large current densities (>100 mA per sq. cm), practically unlimited surface, stable emission in poor vacuum (10/sup -4/ Torr) (Popov et al., 2002). In this work, we report about use of LMMT field emitter on the base of polyethylene terephtalate film with 3 /spl mu/m-diameter holes as the simplest light indicator. The design of the indicator consists of flat accelerating grid and phosphor glass as collecting electrode. The work stability, surface distribution, longlife are discussed in paper.

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第一种基于液态金属多尖端场的指示器

液态金属多尖端(LMMT)电子发射器是通过将液态金属(铟镓共晶)拉过聚对苯二甲酸乙二醇酯核膜上的空穴而产生的(Popov等，2001)。目前用于选择性清理过滤器的轨道膜是通过用具有几十兆伏能量的重离子轰击薄膜而获得的。辐照后，用紫外光照射薄膜并进行化学蚀刻。这些膜是由物理技术研究所的回旋加速器生产的。液态金属多尖端场致发射体与固态场致发射体和爆炸电子致发射体相比，具有无限寿命、大电流密度(>100 mA / sq)等优点。厘米)，几乎无限的表面，在低真空下稳定发射(10/sup -4/ Torr) (Popov et al.， 2002)。本文报道了在聚对苯二甲酸乙二醇酯薄膜上使用3 /spl μ m /m孔径的LMMT场发射器作为最简单的光指示器。指示器的设计由扁平加速栅格和荧光粉玻璃作为收集电极组成。对其工作稳定性、表面分布、长寿命等进行了讨论。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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IVESC 2004. The 5th International Vacuum Electron Sources Conference Proceedings (IEEE Cat. No.04EX839)

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