MEDSI2023 - Table of Session: TUOAM (Photon Delivery and Process A)

Paper	Title	Page
TUOAM01	Upgrade of European XFEL Beam Shutters for Full Beam Operation
	M. Dommach EuXFEL, Schenefeld, Germany
	The European XFEL, a Free-Electron-Laser facility in the Hamburg area (Germany), started user operation in September 2017. In full operation the novel facility will produce coherent femtosecond pulses with unprecedented brilliance in the energy range from 250 eV to 25 keV at MHz repetition rate. The facility consists of a linear accelerator and three photon beamlines, located in underground tunnels. Different sections of the beamlines can be closed with mechanical shutters, blocking the beam and allowing access to one of the tunnels or experimental hutches. Material damage tests have shown that the X-ray beam, in an extremely unlikely event, is capable of damaging the absorber in front of the shutters, if focusing elements like CRLs or bendable mirrors are not operated properly. To exclude such events, the power at different parts of the beam transport system is currently limited. In order to abolish this limitation an upgrade of all absorbers was carried out implementing new absorbing materials like CVD diamond and an active safety system. This presentation will give an overview of the new design, implementation and first commissioning results from an engineering point of view.
	Slides TUOAM01 [15.933 MB]
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUOAM02	Update of the BM18 ESRF Beamline Development: Presentation of Selected Equipment and Their Commissioning	1
	F. Cianciosi, A.-L. Buisson, P. Carceller, P. Tafforeau, P. Van Vaerenberghpresenter ESRF, Grenoble, France
	This article highlights specific equipment that have not yet been described in previous publications, notably the in-vacuum cooled fast shutter for high-energy, the wide aluminium window and tailored high-precision slits (400x200 mm opening). 2022 and 2023 have seen the installation and commissioning of these new equipment. The ID18 beamline opened for user applications in September 2022 with limited capabilities and has been increasing its possibilities since then. It is expected to be fully equipped by the end of 2024.
	Slides TUOAM02 [187.155 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-TUOAM02
About •	Received ※ 25 October 2023 — Revised ※ 03 November 2023 — Accepted ※ 09 November 2023 — Issued ※ 08 July 2024
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUOAM03	Progress of Beamlines Design and Key Technologies of Hefei Advanced Light Facility
	X.W. Du, J. Chen, Z.K. Liu, Q.P. Wang, Z. Wang, S. Wei USTC/NSRL, Hefei, Anhui, People’s Republic of China
	A new synchrotron radiation light source, Hefei Advanced Light Facility (HALF), is under construction. This is the fourth-generation diffraction limited light source located in the low energy region. The storage ring energy is 2.2GeV, the circumference is about 480m, and the horizontal beam natural emittance is about 86.3pm.rad. Ten beamlines, including three coherent beamlines, will be built in the first phase. Due to the high coherence, high brightness and high resolution characteristics of diffraction limited light source, the beamline faces new challenges. This talk will present the progress of beamlines design and some key technology R&D of HALF.
	Slides TUOAM03 [3.921 MB]
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUOAM04	New Developments and Status of XAIRA, the New Microfocus MX Beamline at the ALBA Synchrotron	5
	N. González, C. Colldelram, A. Crisol, D. Garriga, J. Juanhuix, J. Nicolàs, M. Quispe, I. Šics ALBA-CELLS, Cerdanyola del Vallès, Spain
	The new BL06-XAIRA microfocus macromolecular crystallography beamline at ALBA synchrotron is currently under commissioning and foreseen to enter into user operation in 2024. The aim of XAIRA is to provide a 4-14 keV, stable, high flux beam, focused to 3×1 µm2 FWHM. The beamline includes a novel monochromator design combining a cryocooled Si(111) channel-cut and a double multilayer diffracting optics for high stability and high flux; and new mirror benders with dynamical thermal bump and figure error correctors. In order to reduce X-ray parasitic scattering with air and maximize the photon flux, the entire end station, including sample environment, cryostream and detector, is enclosed in a helium chamber. The sub-100nm SoC diffractometer, based on a unique helium bearing goniometer also compatible with air, is designed to support fast oscillation experiments, raster scans and helical scans while allowing a tight sample to detector distance. The beamline is also equipped with a double on-axis visualization system for sample imaging at sub-micron resolutions. The general status of the beamline is presented here with particular detail on the in-house fully developed end station design.
	Slides TUOAM04 [6.526 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-TUOAM04
About •	Received ※ 27 October 2023 — Revised ※ 03 November 2023 — Accepted ※ 10 November 2023 — Issued ※ 15 May 2024
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUOAM05	Thermal-Deformation-Based X-Ray Active Optics Development in IHEP	10
	F.G. Yang, D.Z. Diao, H. Dong, J. Han, M. Li, W.F. Sheng, S.F. Wang, X.W. Zhang IHEP, Beijing, People’s Republic of China L. Kang IHEP CSNS, Guangdong Province, People’s Republic of China
	Funding: National Natural Science Foundation of China (11505212, 11875059); Youth Innovation Promotion Association of the Chinese Academy of Sciences (2019012). Advanced light source require small wavefront distortion to maintain the quality of the X-ray beam. Active optical wavefront correction technology is a very important solution to solve the service problems of ultra-precise devices under such conditions. In this paper, we will report our recent progress on this active optics system development including surface metrology and mirror modulation. Based on the research of laser-heating-based thermal deformation modulation technology, this project proposes to modify the mirror surface of X-ray mirrors based on semiconductor microfabrication process, and modulate the local deformation of the mirror surface by electric heating to realize the surface shape correction /modulation of X-ray mirrors. Since the modulation unit acts directly on the reflective region of the mirror surface, it has a better surface shape correction capability than the conventional body deformation modulation. The solution also has the advantage of high efficiency and low cost. *Yang F, Li M, Gao L, et al. Laser-heating-based active optics for synchrotron radiation applications[J]. Optics Letters, 2016, 41(12): 2815-2818.
	Slides TUOAM05 [18.205 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-TUOAM05
About •	Received ※ 02 November 2023 — Revised ※ 03 November 2023 — Accepted ※ 09 November 2023 — Issued ※ 01 February 2024
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

TUOAM01

Upgrade of European XFEL Beam Shutters for Full Beam Operation

M. Dommach
EuXFEL, Schenefeld, Germany

The European XFEL, a Free-Electron-Laser facility in the Hamburg area (Germany), started user operation in September 2017. In full operation the novel facility will produce coherent femtosecond pulses with unprecedented brilliance in the energy range from 250 eV to 25 keV at MHz repetition rate. The facility consists of a linear accelerator and three photon beamlines, located in underground tunnels. Different sections of the beamlines can be closed with mechanical shutters, blocking the beam and allowing access to one of the tunnels or experimental hutches. Material damage tests have shown that the X-ray beam, in an extremely unlikely event, is capable of damaging the absorber in front of the shutters, if focusing elements like CRLs or bendable mirrors are not operated properly. To exclude such events, the power at different parts of the beam transport system is currently limited. In order to abolish this limitation an upgrade of all absorbers was carried out implementing new absorbing materials like CVD diamond and an active safety system. This presentation will give an overview of the new design, implementation and first commissioning results from an engineering point of view.

Slides TUOAM01 [15.933 MB]

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUOAM02

Update of the BM18 ESRF Beamline Development: Presentation of Selected Equipment and Their Commissioning

1

F. Cianciosi, A.-L. Buisson, P. Carceller, P. Tafforeau, P. Van Vaerenberghpresenter
ESRF, Grenoble, France

This article highlights specific equipment that have not yet been described in previous publications, notably the in-vacuum cooled fast shutter for high-energy, the wide aluminium window and tailored high-precision slits (400x200 mm opening). 2022 and 2023 have seen the installation and commissioning of these new equipment. The ID18 beamline opened for user applications in September 2022 with limited capabilities and has been increasing its possibilities since then. It is expected to be fully equipped by the end of 2024.

Slides TUOAM02 [187.155 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-TUOAM02

About •

Received ※ 25 October 2023 — Revised ※ 03 November 2023 — Accepted ※ 09 November 2023 — Issued ※ 08 July 2024

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUOAM03

Progress of Beamlines Design and Key Technologies of Hefei Advanced Light Facility

X.W. Du, J. Chen, Z.K. Liu, Q.P. Wang, Z. Wang, S. Wei
USTC/NSRL, Hefei, Anhui, People’s Republic of China

A new synchrotron radiation light source, Hefei Advanced Light Facility (HALF), is under construction. This is the fourth-generation diffraction limited light source located in the low energy region. The storage ring energy is 2.2GeV, the circumference is about 480m, and the horizontal beam natural emittance is about 86.3pm.rad. Ten beamlines, including three coherent beamlines, will be built in the first phase. Due to the high coherence, high brightness and high resolution characteristics of diffraction limited light source, the beamline faces new challenges. This talk will present the progress of beamlines design and some key technology R&D of HALF.

Slides TUOAM03 [3.921 MB]

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUOAM04

New Developments and Status of XAIRA, the New Microfocus MX Beamline at the ALBA Synchrotron

5

N. González, C. Colldelram, A. Crisol, D. Garriga, J. Juanhuix, J. Nicolàs, M. Quispe, I. Šics
ALBA-CELLS, Cerdanyola del Vallès, Spain

The new BL06-XAIRA microfocus macromolecular crystallography beamline at ALBA synchrotron is currently under commissioning and foreseen to enter into user operation in 2024. The aim of XAIRA is to provide a 4-14 keV, stable, high flux beam, focused to 3×1 µm2 FWHM. The beamline includes a novel monochromator design combining a cryocooled Si(111) channel-cut and a double multilayer diffracting optics for high stability and high flux; and new mirror benders with dynamical thermal bump and figure error correctors. In order to reduce X-ray parasitic scattering with air and maximize the photon flux, the entire end station, including sample environment, cryostream and detector, is enclosed in a helium chamber. The sub-100nm SoC diffractometer, based on a unique helium bearing goniometer also compatible with air, is designed to support fast oscillation experiments, raster scans and helical scans while allowing a tight sample to detector distance. The beamline is also equipped with a double on-axis visualization system for sample imaging at sub-micron resolutions. The general status of the beamline is presented here with particular detail on the in-house fully developed end station design.

Slides TUOAM04 [6.526 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-TUOAM04

About •

Received ※ 27 October 2023 — Revised ※ 03 November 2023 — Accepted ※ 10 November 2023 — Issued ※ 15 May 2024

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUOAM05

Thermal-Deformation-Based X-Ray Active Optics Development in IHEP

10

F.G. Yang, D.Z. Diao, H. Dong, J. Han, M. Li, W.F. Sheng, S.F. Wang, X.W. Zhang
IHEP, Beijing, People’s Republic of China
L. Kang
IHEP CSNS, Guangdong Province, People’s Republic of China

Funding: National Natural Science Foundation of China (11505212, 11875059); Youth Innovation Promotion Association of the Chinese Academy of Sciences (2019012).
Advanced light source require small wavefront distortion to maintain the quality of the X-ray beam. Active optical wavefront correction technology is a very important solution to solve the service problems of ultra-precise devices under such conditions. In this paper, we will report our recent progress on this active optics system development including surface metrology and mirror modulation. Based on the research of laser-heating-based thermal deformation modulation technology, this project proposes to modify the mirror surface of X-ray mirrors based on semiconductor microfabrication process, and modulate the local deformation of the mirror surface by electric heating to realize the surface shape correction /modulation of X-ray mirrors. Since the modulation unit acts directly on the reflective region of the mirror surface, it has a better surface shape correction capability than the conventional body deformation modulation. The solution also has the advantage of high efficiency and low cost.
*Yang F, Li M, Gao L, et al. Laser-heating-based active optics for synchrotron radiation applications[J]. Optics Letters, 2016, 41(12): 2815-2818.

Slides TUOAM05 [18.205 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-TUOAM05

About •

Received ※ 02 November 2023 — Revised ※ 03 November 2023 — Accepted ※ 09 November 2023 — Issued ※ 01 February 2024

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)