JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - CONF AU - Lu, Y.S. AU - Liang, H. AU - Liu, Z.K. AU - Shen, D.S. AU - Sun, Z. AU - Yang, Y. AU - Zhang, S. AU - Zhang, Y.S. ED - Schaa, Volker R.W. ED - Bian, Lin ED - Chen, Zhichu ED - Dong, Yuhui ED - He, Ping TI - Quick scanning Channel-Cut crystal monochromator for millisecond time resolution EXAFS at HEPS J2 - Proc. of MEDSI2023, Beijing, China, 06-10 November 2023 CY - Beijing, China T2 - International Conference on Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation T3 - 12 LA - english AB - The design and capabilities of a Quick scanning Channel-Cut monochromator (QCCM) for HEPS are presented. The quick scan and step scan are realized by a torque motor directly driven Bragg axis, controlled by a servo controller. This design allows easy and remote control of the oscillation frequency and angular range, providing comprehensive control of QXAFS measure-ments. The cryogenically cooled Si (311) and Si(111) crystals, which extends the energy range from 4.8 keV-45 keV. The dynamic analysis verifies the rationality of the mechanical structure design. The device was fabri-cated and tested, results show an oscillation frequency up to 50Hz with a range of 0.8°, and a resolution of 0.2 arcsecond in step scan mode. This device demonstrates the feasibility of large range quick scan and step scan by a single servo control system. PB - JACoW Publishing CP - Geneva, Switzerland SP - 229 EP - 232 KW - controls KW - synchrotron KW - simulation KW - vacuum KW - synchrotron-radiation DA - 2024/07 PY - 2024 SN - 2673-5520 SN - 978-3-95450-250-9 DO - doi:10.18429/JACoW-MEDSI2023-WEPPP050 UR - https://jacow.org/medsi2023/papers/weppp050.pdf ER -