Author: Zhang, Z.B.
Paper Title Page
TUPYP039 A Design of an X-ray Monochromatic Adjustable Slit for HEPS Beamlines 88
 
  • S. Liu, Q.H. Duan, Q. Han, Z. Li, J.L. Yang, Z.Y. Yue, Q. Zhang, Z.B. Zhang
    IHEP, People’s Republic of China
 
  The mono­chro­matic slit is a com­monly used de­vice in HEPS beam­lines. It can limit the syn­chro­tron beam-spot within a de­sired size re­quired by the down­stream op­ti­cal equip­ment. In ad­di­tion, the four-blade struc­ture is the most widely used form of slit. The slit with this form usu­ally con­sists of a pair or two par­al­lel tung­sten car­bide blades. With their edges close to each other, a slit can be formed, and the size of which can be con­trolled by mi­cro­me­chan­i­cal guides. This struc­ture is very suit­able for the case of large beam­size. In this work, we have de­signed a mono­chro­matic slit based on the four-blade form for BF-beam­line in HEPS. It can be used in ul­tra-high vac­uum, high lu­mi­nous flux work­ing en­vi­ron­ment. The max­i­mum open­ing range is up to 30mm*10mm (H*V), while it can allow a white beam of 136mm*24mm (H*V) to pass through. Fur­ther­more, we adopted a point to sur­face con­tact de­sign, which can ef­fec­tively avoid the over-con­straint prob­lem be­tween two guide rails.  
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DOI • reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-TUPYP039  
About • Received ※ 10 November 2023 — Revised ※ 10 November 2023 — Accepted ※ 10 November 2023 — Issued ※ 18 July 2024
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