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Note: Leaf undulator to realize polarization control with low on-axis heat load
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10.1063/1.3385661
/content/aip/journal/rsi/81/5/10.1063/1.3385661
http://aip.metastore.ingenta.com/content/aip/journal/rsi/81/5/10.1063/1.3385661

Figures

Image of FIG. 1.
FIG. 1.

A period of the magnetic field distribution of leaf undulator, peak magnetic fields in x and y directions are both 0.35 T, period

Image of FIG. 2.
FIG. 2.

Projection in one period of electrons’ (a) trajectory in x-y plane, (b) trajectory in y-z plane, (c) trajectory in x-z plane, and (d) velocity in x-y plane. The arrows and the sequence of the letters indicates the moving direction of electrons. (d) shows a leaf-like curve.

Image of FIG. 3.
FIG. 3.

Spatial distribution of (a) power density and (b) 7 eV fundamental’s flux. .

Image of FIG. 4.
FIG. 4.

(a) Spectrum of leaf undulator and (b) its corresponding linear polarization degree vs photon energy. In (b), Positive (negative) values represents the 45° (135°) linear polarization. , period , period , aperture .

Image of FIG. 5.
FIG. 5.

Projection of electrons’ trajectory in x-y plane under different . , the photon energy of fundamental is 7 eV.

Tables

Generic image for table
Table I.

Performance comparison of several undulators for generation of linear polarization. Beam energy: 3.5 GeV, undulator length: 6.6 m, fundamental photon energy: 7 eV, aperture size: . , , and represent the photon flux of the fundamental, second harmonic and third harmonic, respectively.

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/content/aip/journal/rsi/81/5/10.1063/1.3385661
2010-05-04
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Note: Leaf undulator to realize polarization control with low on-axis heat load
http://aip.metastore.ingenta.com/content/aip/journal/rsi/81/5/10.1063/1.3385661
10.1063/1.3385661
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