Electron beams generation in space-charge regime

被引：0

作者：

Martina, L ^{[1
]}

Nassisi, V ^{[1
]}

Pedone, A ^{[1
]}

Raganato, G ^{[1
]}

机构：

[1] Ist Nazl Fis Nucl, Sez Lecce, Dept Phys, Lab Appl Elect, I-73100 Lecce, Italy

来源：

OPTICS FOR THE QUALITY OF LIFE, PTS 1 AND 2 | 2003年 / 4829卷

关键词：

D O I：

10.1117/12.529252

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We generated electron beams by a Nb polycrystalline photocathode illuminated by different wavelength excimer lasers; an XeCl and a KrCl. The cathode surface roughness was 0.09. At low accelerating voltage, the electron beams were governed by the space-charge effect and their intensity never resulted clipped as previous by the Child-Langmuir law. Instead, the output current waveform was similar to the laser one under saturation regime. The quantum efficiencies were 3.2x10(-5) and 6.7x10(-7) for the KrCl and XeCl irradiation, respectively.

引用

页码：722 / 723

页数：2

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