用于SPring-8软X射线光化学光束线的插入装置。
An insertion device for the soft X-ray photochemistry beamline at SPring-8.
作者信息
Tanaka T, Maréchal X M, Hara T, Tanabe T, Kitamura H
机构信息
SPring-8, Kamigori-cho, Hyogo 678-12, Japan.
出版信息
J Synchrotron Radiat. 1998 May 1;5(Pt 3):459-61. doi: 10.1107/S0909049597013733.
A figure-8 undulator is an insertion device (ID) proposed at SPring-8 to reduce the heat-load problems encountered with ordinary linear undulators. This device is useful when the K value is high in order to obtain low-energy photons as the fundamental of the undulator radiation. It has therefore been adopted as the ID for the soft X-ray photochemistry beamline (BL27SU) at SPring-8 because linearly polarized photons between 100 and 2000 eV are necessary for the experiments on this beamline. The figure-8 undulator for BL27SU is now under construction and, in the first phase of operation, is expected to cover the energy range down to 500 eV. In the second and third phases, the lowest energy may be reduced to 170 and 100 eV, respectively.
8字形波荡器是SPring-8提出的一种插入式装置（ID），用于减少普通线性波荡器遇到的热负载问题。当K值较高时，该装置有助于获得低能光子作为波荡器辐射的基频。因此，它已被用作SPring-8软X射线光化学光束线（BL27SU）的插入式装置，因为该光束线的实验需要100至2000 eV之间的线偏振光子。BL27SU的8字形波荡器目前正在建造中，在第一阶段运行时，预计可覆盖低至500 eV的能量范围。在第二和第三阶段，最低能量可能分别降至170 eV和100 eV。
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