scholarly journals Publisher’s Note: Phase errors and their effect on undulator radiation properties [Phys. Rev. ST Accel. Beams16, 010704 (2013)]

2013 ◽  
Vol 16 (2) ◽  
Author(s):  
Richard P. Walker
Keyword(s):  
Undulator Radiation ◽  
Phase Errors ◽  
Radiation Properties

Investigation of edge radiation intensification effect generated by periodic alignment of three-pole wigglers

2022 ◽  
Author(s):  
Shigeru Koda ◽  
Yuichi Takabayashi ◽  
Tatsuo Kaneyasu ◽  
Yoshitaka Iwasaki
Keyword(s):  
Numerical Study ◽  
Concentric Circle ◽  
Harmonic Structure ◽  
Characteristic Structure ◽  
K Value ◽  
Undulator Radiation ◽  
Peak Intensity ◽  
Edge Radiation ◽  
Radiation Properties ◽  
Large Gradient

Abstract The intensification effect of edge radiation due to the periodic alignment of three-pole wigglers was analytically and numerically investigated. The radiation properties were studied using a simple model that had an alternating alignment of straight sections and large gradient orbit sections due to the use of three-pole wigglers. The angular distribution of the radiation was concentrated on a concentric circle. The peak intensity of the radiation was roughly on the same order as that of the peak radiation of a planar undulator. The spectrum of the radiation had a characteristic structure that was rather similar to the higher harmonic structure of undulator radiation. A numerical study showed that a planar undulator with a specific K value satisfies approximately the radiation intensification condition due to the periodic alignment of the three-pole wigglers. The intensified edge radiation is included in the undulator radiation.

Practical aspects of undulator radiation properties

1996 ◽  
Author(s):  
Peter P. Ilinski ◽  
Roger J. Dejus ◽  
Efim S. Gluskin ◽  
Timothy I. Morrison
Keyword(s):  
Undulator Radiation ◽  
Radiation Properties

scholarly journals Effects of energy spread on brightness and coherence of undulator sources

2018 ◽  
Vol 25 (5) ◽  
pp. 1335-1345 ◽  
Author(s):  
Gianluca Geloni ◽  
Svitozar Serkez ◽  
Ruslan Khubbutdinov ◽  
Vitali Kocharyan ◽  
Evgeni Saldin
Keyword(s):  
Wigner Distribution ◽  
Energy Spread ◽  
Gaussian Beams ◽  
Spectral Brightness ◽  
Undulator Radiation ◽  
At Resonance ◽  
Radiation Properties ◽  
Coherent Sources ◽  
On Line ◽  
Laser Sources

The (spectral) brightness for partially transverse coherent sources such as synchrotron radiation and free-electron laser sources can be defined as the maximum of the Wigner distribution. Then, the brightness includes information on both coherence and wavefront characteristics of the radiation field. For undulator sources, it is customary to approximate the single-electron electric field at resonance with a Gaussian beam, leading to great simplifications. Attempts to account for the modified spatial and angular profile of the undulator radiation in the presence of detuning due to energy spread, currently build on the simplified brightness expression derived under the assumption of Gaussian beams. The influence of energy spread on undulator radiation properties is becoming important in view of diffraction-limited rings with ultralow emittance coming on-line. Here the effects of energy spread on the brightness of undulator radiation at resonance are discussed, as well as relevant relations with coherence properties.

RADIATION PROPERTIES OF HETEROGENEOUS ANTENNA ARRAY

2019 ◽  
Vol 78 (7) ◽  
pp. 569-578
Author(s):  
M. V. Shcherbakov ◽  
G. I. Khlopov ◽  
O. A. Voitovych ◽  
V. N. Pehota ◽  
S. V. Myroniuk ◽  
...  
Keyword(s):  
Antenna Array ◽  
Radiation Properties

Radiation Properties of Coal and Thermal Industries Waste

2020 ◽  
pp. 60-67
Author(s):  
E.B. Khobotova ◽  
◽  
M.I. Ignatenko ◽  
E.A. Belichenko ◽  
S.V. Ponikarovskaya ◽  
...  
Keyword(s):  
Radiation Properties
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