JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{chen:medsi2023-weobm02,
author = {M.W. Chen and M. Li and S. Tang and F.G. Yang},
title = {{Development of the Bent Focusing Mirror in HEPS from Design to Test}},
% booktitle = {Proc. MEDSI'23},
booktitle = {Proc. 12th Int. Conf. Mech. Eng. Design Synchrotron Radiat. Equip. Instrum. (MEDSI'23)},
eventdate = {2023-11-06/2023-11-10},
pages = {136--138},
paper = {WEOBM02},
language = {english},
keywords = {focusing, ECR, SRF, synchrotron, photon},
venue = {Beijing, China},
series = {International Conference on Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation},
number = {12},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {07},
year = {2024},
issn = {2673-5520},
isbn = {978-3-95450-250-9},
doi = {10.18429/JACoW-MEDSI2023-WEOBM02},
url = {https://jacow.org/medsi2023/papers/weobm02.pdf},
abstract = {{The focusing mirrors are important for each beamline in the 4th generation photon source. One bent focusing face-down mirror in HEPS is taken for an example to be introduced from the design to the test. The effect of the gravity of the mirror is considered in the design. Moreover, for the sake of the compromise between the processing and the precision, the polygonal structure is adopted. Also, the iteration of the solution is improved to increase the design efficiency. The results reveal that the theoretical precision of the mirror after bending can reach less than 100 nrad RMS. In the aspect of the mechanics, the scheme of four roller bender comes out to avoid the parasitic moment, and the movable component in the bender are all coated with the MoS2. As the type of the measurement is facing side which is different from the type of the actual condition, the effect of the gravity must be included in the metrology results. In the meantime, the stability and the repeatability are also measured. The result can be converged to around 200 nrad RMS, which is less than the required error. The stability, ¿R/R, can be constrained under the 0.6\%, showing the outstanding performance.}},
}