Observation of coherent Cerenkov radiation from a solid dielectric with short bunches of electrons

被引：48

作者：

Takahashi, T ^{[1
]}

Shibata, Y

Ishi, K

Ikezawa, M

Oyamada, M

Kondo, Y

机构：

[1] Kyoto Univ, Inst Res Reactor, Kumatori, Osaka 5900494, Japan

[2] Tohoku Univ, Sci Measurements Res Inst, Aoba Ku, Sendai, Miyagi 9808577, Japan

[3] Tohoku Univ, Nucl Sci Lab, Taihaku Ku, Sendai, Miyagi 9820826, Japan

[4] Tohoku Univ, Fac Engn, Aoba Ku, Sendai, Miyagi 9808579, Japan

来源：

PHYSICAL REVIEW E | 2000年 / 62卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.62.8606

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：

Short bunches of 150-MeV electrons of a linear accelerator passed along the surface of a crystal quartz or a teflon and coherent Cerenkov radiation from the solid dielectrics has been observed in the wavelength range from 0.5 to 4 mm. Properties of the radiation have been experimentally investigated. The angular distribution of the observed radiation showed a maximum peak in the direction of the Cerenkov angle with several satellite peaks. The intensity increased linearly with increasing the length of the medium and was proportional to the square of the number of electrons in the bunch. The spectral intensity was enhanced by almost five orders of magnitude in comparison with the theoretical calculation of incoherent radiation.

引用

页码：8606 / 8611

页数：6

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