| Paper |
Title |
Page |
| THPPP014 |
A Special-Shaped Copper Block Cooling Method for White Beam Mirrors Under Ultra-High Heat Loads* |
299 |
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- J.Y. Liu, H. Qin, X.X. Yan
IASF, Shenzhen, Guangdong, People’s Republic of China
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In order to fulfil the more stringent requirements of op-tical figure accuracy for cooled X-Ray mirrors imposed to high heat loads, especially from advanced insertion de-vices in the diffraction limited storage rings (DLSR), investigations on the cooling system for white beam mirrors are conducted in this paper. A special-shaped copper block (SSCB) cooling method is proposed, using eutectic indium-gallium alloy as heat transfer medium. The SSCB cooling technology can keep a 550mm-length mirror slope error of 0.2 ¿rad (RMS) under 230 W absorp-tion heat power, showing great advantages in the accura-cy and flexibility for thermal deformation minimization when compared with the traditional ones.
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| DOI • |
reference for this paper
※ doi:10.18429/JACoW-MEDSI2023-THPPP014
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| About • |
Received ※ 25 October 2023 — Revised ※ 05 November 2023 — Accepted ※ 06 November 2023 — Issued ※ 10 December 2023 |
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| THPPP015 |
Mechanical Design of the Novel Precise Secondary Source Slits |
303 |
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- X.X. Yan, Y.J. Gong, Z. Ji, J.Y. Liu, H. Qin
IASF, Shenzhen, Guangdong, People’s Republic of China
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High-precision slits are extensively adopted in coherent or nano-focusing beamlines as the secondary source, which can accurately define or achieve a beam size at the micron or sub-micron scale, while maintaining high stability. This paper presents the design of a set of precise slits based on a flexure hinge mechanism, which enables a nano-scale resolution and a stroke of hundreds of microns simultaneously. The coarse or fine adjustment motion of each blade can be accomplished with or without a displacement amplification mechanism, which is driven by a piezo actuator. Furthermore, the kinematic and dynamics models are investigated through finite element analysis (FEA) and numerical analysis successively, yielding consistent results. The optimized slits system can provide a linear stroke of up to 400 um with a resolution of 10 nm both in horizontal and vertical directions, whose first Eigen frequency is 130 Hz.
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| DOI • |
reference for this paper
※ doi:10.18429/JACoW-MEDSI2023-THPPP015
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| About • |
Received ※ 25 October 2023 — Revised ※ 05 November 2023 — Accepted ※ 09 November 2023 — Issued ※ 28 November 2023 |
| Cite • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
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