CERENKOV RADIATION FROM A FINITE TRAJECTORY OF ELECTRONS

被引：32

作者：

TAKAHASHI, T

KANAI, T

SHIBATA, Y

ISHI, K

IKEZAWA, M

NAKAZATO, T

OYAMADA, M

URASAWA, S

YAMAKAWA, T

TAKAMI, K

MATSUYAMA, T

KOBAYASHI, K

FUJITA, Y

机构：

[1] TOHOKU UNIV,NUCL SCI LAB,TAIHAKU KU,SENDAI,MIYAGI 982,JAPAN

[2] KYOTO UNIV,INST RES REACTOR,KUMATORI,OSAKA 59004,JAPAN

来源：

PHYSICAL REVIEW E | 1994年 / 50卷 / 05期

关键词：

D O I：

10.1103/PhysRevE.50.4041

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Properties of radiation emitted by relativistic electrons traveling through a limited trajectory of length L in helium and nitrogen gas at various pressures are experimentally investigated in the visible and the millimeter-wave regions. The radiation was generated by short bunches of electrons from a linear accelerator. In the long-wavelength region the erenkov threshold was blotted out, and the observed radiation showed characteristics of transition radiation even if the erenkov criterion n>1 was fulfilled. An alternative criterion (n-/L)>1 is proposed on the basis of the consideration of the formation zone. © 1994 The American Physical Society.

引用

页码：4041 / 4050

页数：10

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