At the Dresden Radiation Source ELBE an intense IR beam in the 3-30μm range will be produced in the undulator U27. It consists of two 34-pole sections, allowing to insert a magnetic chicane in between [1]. The undulator structure has a period of λ{sub}u=27.3mm and consists of NdFeB permanent magnets and poles of decarborized iron, mounted on two carriages [delivered by DANFYSIK] such that the distance between the two sections is adjustable for phase-matching. The gaps of both sections can be varied independently to eventually produce two IR-colours at the same electron energy. For high-gain lasing one can introduce a tapering of the field.
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机译：在德累斯顿辐射源，在8-30μm范围内的强烈的IR梁将在起伏器U27中产生。它由两个34极部分组成，允许在[1]之间插入磁性肾。波浪结构具有λ{sub} U = 27.3mm的周期，并且由NDFEB永磁体和脱色铁的磁极组成，安装在两个托架上[由Danfysik提供]，使得两部分之间的距离可调节相位匹配。两段的间隙可以独立变化，最终在相同的电子能量下产生两种IR颜色。对于高增益激光，可以引入锥形的锥度。
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