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![[Figure 4]](xa5013fig4mag.jpg)
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Figure 4
Measurement of beam sizes and emittances using wire scanners in the undulator FODO lattice. Beam sizes along the undulator line and normalized phase space of the horizontal plane (a) and the vertical plane (b). The horizontal axis of the beam size figures [left-hand figure in (a) and (b)] represents the distance along the undulator line and the second wire-scanner is located at z = 0. γɛ, β, α in the left-hand figures of (a) and (b) are the measured Twiss parameters at z = 0. The green circle in the phase space diagrams [right-hand figures in (a) an (b)] represents a phase space of a 1 mm mrad emittance beam. The five colored lines of the phase space diagram represent the position and angle of the measurement for the five wire scanners and those inside the circle represent betatron phase advance. |
![[Figure 4]](xa5013fig4.jpg)
 | JOURNAL OF SYNCHROTRON RADIATION |
ISSN: 1600-5775
