FORWARD DIRECTED SMITH-PURCELL RADIATION FROM RELATIVISTIC ELECTRONS

被引：73

作者：

WOODS, KJ

WALSH, JE

STONER, RE

KIRK, HG

FERNOW, RC

机构：

[1] MIT,CAMBRIDGE,MA 02139

[2] ELECTR RES LAB,CAMBRIDGE,MA 02139

[3] BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.74.3808

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The requirements for the generation of forward directed Smith-Purcell emission from relativistic electrons are introduced, and the first experimental evidence of this phenomenon is presented. The experiments were conducted with a 2.8 MeV/ c electron beam interacting with a 1 cm period grating. Radiation emitted in two bands with wavelengths ranging from 600 to 650 μm and 1.2 to 1.7 mm were measured. Grating period to wavelength ratios were as high as 16. The measured intensities are higher than that predicted by incoherent emission. © 1995 The American Physical Society.

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页码：3808 / 3811

页数：4

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