MEDSI2018 - List of Keywords (site)

Paper	Title	Other Keywords	Page
TUPH15	Friction Stir Welding Attempts for UHV Applications: Stainless Steel/Aluminum	interface, HOM, factory	57
	A. Ermakov, C. Martens, U. Naujoks DESY, Hamburg, Germany
	At DESY in Hamburg an investigation was started to join aluminum chambers with stainless steel flanges by friction stir welding. First results will be presented. It will be shown that there is only a small effect of hardening in the contact zone at the stainless-steel side, a small amount of particles are given and the diffusion zone is about 3 microns, but with a very irregular effect on the structured junction. Because of that, the influence of the surface and the welding parameters on the process will be investigated in the future.
	Poster TUPH15 [2.530 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH15
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TUPH25	Morphologies of Oxygen-Free Titanium and Palladium/Titanium Thin Films: New Non-Evaporable Getter (NEG) Coatings	vacuum, electron, interface, experiment	84
	T. Miyazawa Sokendai, The Graduate University for Advanced Studies, Tsukuba, Japan A.H. Hashimoto, M. Yamanaka NIMS, Tsukuba, Ibaraki, Japan T. Kikuchi, K. Mase KEK, Tsukuba, Japan
	Funding: This research was partly supported by a TIA-Kakehashi grant and by the Global Research Center for Environment and Energy based on Nanomaterials Science. Non-evaporable getter (NEG) coatings are ideal for maintaining an ultrahigh vacuum (UHV) in the range 10^'8 Pa and they are widely used for accelerators because they are oil free, magnetic-field free, vibration free, economical, space saving, and energy efficient. We recently fabricated new NEG coatings consisting of low-oxygen-content Ti or oxygen-free Pd/Ti by sublimation under a clean UHV in the range 10^'8 to 10^'7 Pa []. Here, we report the determination of the morphologies of these films by scanning electron microscopy, transmission electron microscopy, scanning transmission electron microscopy, and energy-dispersive X-ray spectroscopy. The Ti and Pd films had almost uniform thicknesses of about 1.3 'm and 50 nm, respectively, and the Pd film completely overcoated the Ti film. Both the Pd and Ti thin films were uniformly deposited in plane on the stainless steel 304L substrate and they had polycrystalline structures. The interface between the Pd and Ti thin films was not abrupt. T. Miyazawa, K. Tobishima, H. Kato, M. Kurihara, S. Ohno, T. Kikuchi, and K. Mase, Vac. Surf. Sci. 61, 227 (2018).
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH25
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TUPH41	Investigation of Regulation Plan for the Vibration Utility Equipment of HEPS	booster, ground-motion, ion-source, damping	136
	F. Yan, D. Ji, Y. Jiao, C. H. Li, Z.Z. Wang, G. Xu IHEP, Beijing, People's Republic of China Z. Jiang, L.W. Lai, Q.L. Sun SINAP, Shanghai, People's Republic of China
	For the third or fourth generation synchrotron light sources, the brilliance of the x-ray beam is 2 to 3 order higher than other generations, and in the meanwhile the beam emittance is at least one order smaller. To ensure the stability of the beam, the vibration caused beam motion is usually controlled to be within 10% of the RMS beam size. Thus the smaller beam emittance is, more restrict of the regulation plan to the vibration sources should be. Inside of the light source site, one major vibration source is the utility equipment such as water pump, compressors and so on. There are two controlling approaches for the vibration amplitude of those sources, one is damping, and another way is decay. However reasonable specification is the key of the controlling method. This work will present the detailed establish process of the regulation plan for HEPS in China.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH41
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WEOPMA03	Application of Additive Manufacturing in the Development of a Sample Holder for a Fixed Target Vector Scanning Diffractometer at SwissFEL	acceleration, FEL, target, simulation	158
	X. Wang, P. Hirschi, J. Hora, H. Jöhri, B. Pedrini, C. Pradervand PSI, Villigen PSI, Switzerland
	Whilst the benefit of additive manufacturing (AM) in rapid prototyping becomes more and more established, the direct application of 3D printed part is still demanding. Exploitation of AM opens the door for complex and optimized parts which are otherwise impossible to fabricate. In the meanwhile, specific knowledge and aspects in analysis and design process are still to be explored. For a fixed target vector scanning diffractometer [1] at SwissFEL we developed, manufactured and tested a 3D-printed sample holder with carbon fiber reinforced plastics material. The diffractometer for serial crystallography is dedicated to collect diffraction patterns at up to 100 Hz on many small crystals (< 5 µm) by scanning the sample support in a continuous, arbitrary motion. The high dynamics arising from curved trajectories in the xy-plane requires a light and stiff sample holder which attaches the sample to the stage. In addition to 3D printed parts, an aluminum counterpart produced by CNC machining has also been tested and carefully evaluated. Our work in the course of development process on topology optimization, design, manufacturing and dynamic verification tests will be presented. [1] C. Pradervand et al., SwissMX: Fixed Target vector scanning diffractometer for Serial Crystallography at SwissFEL, SRI 2018
	Slides WEOPMA03 [6.670 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEOPMA03
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THPH40	Training the Next Generation of Engineers for Photon Based Light Sources	ECR, synchrotron, survey, electron	421
	S.M. Scott DLS, Oxfordshire, United Kingdom
	The continued increase in the number of Light Sources, their beamlines and the need for upgrades of both machine and beamlines requires an ever larger supply of suitably qualified and experienced engineers. If there is a world wide shortage of Engineers where will facilities find these engineers and how can they be trained to the required level? This paper discusses these issues by looking at the growth of demand for engineers within light sources, the evidence of shortages of engineers, the changes in attitudes to work by younger people, the skills necessary, training opportunities and the issues in attracting people into the light sources industry. The paper will also outline the training week for early career engineers delivered at Diamond.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH40
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

TUPH15

Friction Stir Welding Attempts for UHV Applications: Stainless Steel/Aluminum

interface, HOM, factory

57

A. Ermakov, C. Martens, U. Naujoks
DESY, Hamburg, Germany

At DESY in Hamburg an investigation was started to join aluminum chambers with stainless steel flanges by friction stir welding. First results will be presented. It will be shown that there is only a small effect of hardening in the contact zone at the stainless-steel side, a small amount of particles are given and the diffusion zone is about 3 microns, but with a very irregular effect on the structured junction. Because of that, the influence of the surface and the welding parameters on the process will be investigated in the future.

Poster TUPH15 [2.530 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH15

Export •

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

TUPH25

Morphologies of Oxygen-Free Titanium and Palladium/Titanium Thin Films: New Non-Evaporable Getter (NEG) Coatings

vacuum, electron, interface, experiment

84

T. Miyazawa
Sokendai, The Graduate University for Advanced Studies, Tsukuba, Japan
A.H. Hashimoto, M. Yamanaka
NIMS, Tsukuba, Ibaraki, Japan
T. Kikuchi, K. Mase
KEK, Tsukuba, Japan

Funding: This research was partly supported by a TIA-Kakehashi grant and by the Global Research Center for Environment and Energy based on Nanomaterials Science.
Non-evaporable getter (NEG) coatings are ideal for maintaining an ultrahigh vacuum (UHV) in the range 10^'8 Pa and they are widely used for accelerators because they are oil free, magnetic-field free, vibration free, economical, space saving, and energy efficient. We recently fabricated new NEG coatings consisting of low-oxygen-content Ti or oxygen-free Pd/Ti by sublimation under a clean UHV in the range 10^'8 to 10^'7 Pa [*]. Here, we report the determination of the morphologies of these films by scanning electron microscopy, transmission electron microscopy, scanning transmission electron microscopy, and energy-dispersive X-ray spectroscopy. The Ti and Pd films had almost uniform thicknesses of about 1.3 'm and 50 nm, respectively, and the Pd film completely overcoated the Ti film. Both the Pd and Ti thin films were uniformly deposited in plane on the stainless steel 304L substrate and they had polycrystalline structures. The interface between the Pd and Ti thin films was not abrupt.
* T. Miyazawa, K. Tobishima, H. Kato, M. Kurihara, S. Ohno, T. Kikuchi, and K. Mase, Vac. Surf. Sci. 61, 227 (2018).

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH25

Export •

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

TUPH41

Investigation of Regulation Plan for the Vibration Utility Equipment of HEPS

booster, ground-motion, ion-source, damping

136

F. Yan, D. Ji, Y. Jiao, C. H. Li, Z.Z. Wang, G. Xu
IHEP, Beijing, People's Republic of China
Z. Jiang, L.W. Lai, Q.L. Sun
SINAP, Shanghai, People's Republic of China

For the third or fourth generation synchrotron light sources, the brilliance of the x-ray beam is 2 to 3 order higher than other generations, and in the meanwhile the beam emittance is at least one order smaller. To ensure the stability of the beam, the vibration caused beam motion is usually controlled to be within 10% of the RMS beam size. Thus the smaller beam emittance is, more restrict of the regulation plan to the vibration sources should be. Inside of the light source site, one major vibration source is the utility equipment such as water pump, compressors and so on. There are two controlling approaches for the vibration amplitude of those sources, one is damping, and another way is decay. However reasonable specification is the key of the controlling method. This work will present the detailed establish process of the regulation plan for HEPS in China.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH41

Export •

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

WEOPMA03

Application of Additive Manufacturing in the Development of a Sample Holder for a Fixed Target Vector Scanning Diffractometer at SwissFEL

acceleration, FEL, target, simulation

158

X. Wang, P. Hirschi, J. Hora, H. Jöhri, B. Pedrini, C. Pradervand
PSI, Villigen PSI, Switzerland

Whilst the benefit of additive manufacturing (AM) in rapid prototyping becomes more and more established, the direct application of 3D printed part is still demanding. Exploitation of AM opens the door for complex and optimized parts which are otherwise impossible to fabricate. In the meanwhile, specific knowledge and aspects in analysis and design process are still to be explored. For a fixed target vector scanning diffractometer [1] at SwissFEL we developed, manufactured and tested a 3D-printed sample holder with carbon fiber reinforced plastics material. The diffractometer for serial crystallography is dedicated to collect diffraction patterns at up to 100 Hz on many small crystals (< 5 µm) by scanning the sample support in a continuous, arbitrary motion. The high dynamics arising from curved trajectories in the xy-plane requires a light and stiff sample holder which attaches the sample to the stage. In addition to 3D printed parts, an aluminum counterpart produced by CNC machining has also been tested and carefully evaluated. Our work in the course of development process on topology optimization, design, manufacturing and dynamic verification tests will be presented.
[1] C. Pradervand et al., SwissMX: Fixed Target vector scanning diffractometer for Serial Crystallography at SwissFEL, SRI 2018

Slides WEOPMA03 [6.670 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEOPMA03

Export •

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

THPH40

Training the Next Generation of Engineers for Photon Based Light Sources

ECR, synchrotron, survey, electron

421

S.M. Scott
DLS, Oxfordshire, United Kingdom

The continued increase in the number of Light Sources, their beamlines and the need for upgrades of both machine and beamlines requires an ever larger supply of suitably qualified and experienced engineers. If there is a world wide shortage of Engineers where will facilities find these engineers and how can they be trained to the required level? This paper discusses these issues by looking at the growth of demand for engineers within light sources, the evidence of shortages of engineers, the changes in attitudes to work by younger people, the skills necessary, training opportunities and the issues in attracting people into the light sources industry. The paper will also outline the training week for early career engineers delivered at Diamond.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH40

Export •

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