Time lens for high-resolution neutron time-of-flight spectrometers -: art. no. 043619

被引：6
|
作者：
Baumann, K [1 ]
Gähler, R
Grigoriev, P
Kats, EI
机构：
[1] Tech Univ Munich, D-80333 Munich, Germany
[2] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France
来源：
PHYSICAL REVIEW A | 2005年 / 72卷 / 04期
关键词：
D O I：
10.1103/PhysRevA.72.043619
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We examine in analytic and numeric ways the imaging effects of temporal neutron lenses created by traveling magnetic fields. For fields of parabolic shape we derive the imaging equations, investigate the time magnification, the evolution of the phase-space element, the gain factor, and the effect of finite beam size. The main aberration effects are calculated numerically. The system is technologically feasible and should convert neutron time-of-flight instruments from pinhole to imaging configuration in time, thus enhancing intensity and/or time resolution. Further fields of application for high-resolution spectrometry may be opened.
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页数：9
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