Luo, H.W.
Chung, T.Y.
Hwang, C.-S.
Lee, C.H.
Properties of Synchrotron Radiation from Segmented Undulators based on a Wigner Distribution Function
JACoW
Geneva, Switzerland
978-3-95450-147-2
10.18429/JACoW-IPAC2016-WEPOW042
English
2933-2935
WEPOW042
undulator
electron
brilliance
radiation
photon
Contribution to a conference proceedings
2016
2016-06
http://dx.doi.org/10.18429/JACoW-IPAC2016-WEPOW042
http://jacow.org/ipac2016/papers/wepow042.pdf
Three long straight sections with a double mini-βy lattice were designed in Taiwan Photon Source. For the purpose to understand whether the brilliance can be enhanced or not when two collinear undulators were installed in the double mini-βy. Therefore, the Wigner distribution function (WDF) is developed to calculate the brilliance in the double mini-βy lattice that is a natural way to describe a synchrotron radiation source. Herein, the brilliance is thereby calculable without a Gaussian approximation used in a conventional manner. Some important optical properties such as the degree of coherence can be directly calculated with this method. We use it as an example to investigate the properties of radiation from a segmented undulator.