Enhanced parametric X-ray emission from grazing incident electrons

被引：0

作者：

Lobko, A. S. ^{[2
]}

Nasonov, N. ^{[1
]}

Park, H. ^{[3
]}

Piestrup, M. ^{[3
]}

Zhukova, P. ^{[1
]}

机构：

[1] Belgorod State Univ, Lab Radiat Phys, Belgorod, Russia

[2] Belgorod State Univ, Inst Nucl Problems, Minsk, BELARUS

[3] Adelphi Technol Inc, San Carlos, CA USA

来源：

INTERNATIONAL CONFERENCE ON CHARGED AND NEUTRAL PARTICLES CHANNELING PHENOMENA II - CHANNELING 2006 | 2007年 / 6634卷

关键词：

parametric X-ray; emission spectrum; spectral width; photoabsorption; enhancement of the emission yield;

D O I：

10.1117/12.742057

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Strong monochromatization of the parametric x-ray emission spectrum is predicted for electrons moving at small angles to the reflecting crystallographic plane of target crystals. The effect can only be realized far from the Bragg-resonance condition and is caused by a long "tail" in the angular parametric-x-ray, distribution. In addition. there can be a substantial enhancement of the parametric x-ray yield from grazing-incidence electrons when there is strong asymmetric diffraction (the reflecting crystallographic plane is not parallel to the surface of the crystal). It is shown that this allows one to suppress the influence of photoabsorption on parametric x-ray emission.

引用

页数：9