The Beam Transport (BT) system for the linac has a quadrupole doublet to keep the emittance small and the position of the accelerated beam on the axis of the linac from the injector to the end of the linac. The S figure type BT systems (22.5 deg. bend x 2) are installed at 30-165MeV sections have been designed as achromatic and nearly isochronous BT systems for corresponding undulator.
The FEL beam from the output mirror of the optical resonator is collimated by an inverted telescope and transported to reflecting mirror systems to the user's rooms located in the third floor.
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