Author: Li, Z.
Paper Title Page
TUPYP034
A New Design of X-ray White Beam Profile Monitor for HEPS Beamlines  
 
  • Q.H. Duan, Q. Han, Z. Li, S. Liu, Z.Y. Yue, Q. Zhang
    IHEP, Beijing, People’s Republic of China
 
  The development of x-ray white beam profile monitor is to realize the visual detection of beam contour and position under the condition of high energy and high heat load of HEPS fourth-generation light source. The device includes a electric drive system, an imaging system, and a copper-cooled CVD diamond monitor. SPECTRA and ANSYS were used to verify the mechanism temperature reliability when monitor being used in different HEPS beamlines at current of 200 mA. At the same time, the functional verification of the experimental prototype was carried out on the 3W1 high energy test beamline of BSRF, white beam fluorescence images were successfully obtained. During the test of Multilayer Monochromator for Structural Dvnamics Beamline(HEPS), the change images of white and monochromatic beam profiles and curve of intensity distribution during crystal adjustment are successfully obtained, which verificates the processing function of the monitor for beam profile and intensity distribution.  
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TUPYP036
Mechanical Design of Water-cooled Slits System at HEPS  
 
  • Z. Li, Q.H. Duan, L. Gao, Q. Han, Y.X. Ma, W.F. Sheng, Z.Y. Yue
    IHEP, Beijing, People’s Republic of China
 
  The fourth generation synchrotron radiation light source currently under construction in China has the characteristics of high energy and high brightness. High Energy Photon Source(HEPS) can be used in many basic and engineering research fields, so different spot sizes are modulated for different research needs. This design is a rotary water-cooled white beam slit system, which mainly includes absorber parts and driving mechanism. On the premise of ensuring the integrity of the absorber, the aperture is processed inside the absorber, and the absorber is rotated by the driving mechanism, so as to realize the adjustment of the aperture of the slit. The system has the characteristics of compact structure, high yield and simple processing, and can achieve the same performance index while saving time and space costs. At present, the function of the experimental prototype has been verified on the 3W1 high energy test beam line of BSRF, and the spot size can be adjusted.  
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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.  
poster icon Poster TUPYP039 [0.457 MB]  
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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