MEASURED BRIGHTNESS OF ELECTRON-BEAMS PHOTOEMITTED FROM MULTICRYSTALLINE LAB6

被引：28

作者：

OETTINGER, PE

机构：

来源：

APPLIED PHYSICS LETTERS | 1990年 / 56卷 / 04期

关键词：

D O I：

10.1063/1.103290

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Laser-driven semiconductor photoemitters can provide the very bright beams of electrons needed in advanced accelerators. However, these semiconductors are easily degraded in operation. Photoemissive testing of the compound LaB 6, which is expected to be a more environmentally rugged material, has shown that under excimer laser irradiation normalized electron beam brightnesses of 6.7×106, 2.6×106, and 1.5×105 A/cm2 rad2 can be achieved at photon wavelengths, respectively, of 193, 248, and 308 nm.

引用

页码：333 / 334

页数：2