IPAC2017 - List of Authors (Andersson, R.)

Paper	Title	Page
TUPIK078	Machine Protection Risk Management of the ESS Target System	1876
	R. Andersson, E. Bargalló, L.S. Emås, J. Harborn, A. Lundgren, U. Odén, J. Ringnér, K. Sjögreen ESS, Lund, Sweden
	The European Spallation Source target system is, together with the proton linac, the main component in the spallation process. ESS will use a 4-ton, helium-cooled, rotating tungsten target for this purpose, and its protection and availability is paramount to the success of ESS. High demands are placed on all of the target equipment, including cooling, movement, rotation, and timing, in order to reach the facility-wide 95% availability goal for neutron production. Machine protection has defined a set of protection functions that are to be implemented for the target system. This paper describes the development of these protection functions through the use of classic HAZOPs combined with modern safety standard lifecycle management. The implementation of these functions is carried out through close collaboration between the target system owners and the machine protection group at ESS.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-TUPIK078
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TUPIK079	Development and Status of Protection Functions for the Normal Conducting LINAC at ESS	1880
	R. Andersson, E. Bargalló, S. Kövecses, A. Nordt, M. Zaera-Sanz ESS, Lund, Sweden C. Hilbes, M. Rejzek ZHAW, Winterthur, Switzerland
	The European Spallation Source faces a great challenge in succeeding with its ambitious availability goals. The aim is to construct a machine that allows for 95% availability for neutron beam production. This goal requires a robust protection system that allows for high availability by continuously monitoring and acting on the machine states, in order to avoid long facility downtimes and optimize the operation at any stage. The normal conducting section consists of the first 48 meters of the machine, and performs the initial acceleration, bunching, steering, and focusing of the beam, which sets it up for optimal transition into the superconducting section. Through a fit-for-purpose risk management process, a set of protection functions has been identified. The risk identification, analysis, and treatment were done in compliance with modern safety and ISO standards. This ensures that the risks, in this case downtime and equipment damage, are properly prevented and mitigated. This paper describes this process of defining the protection functions for the normal conducting linac at ESS.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-TUPIK079
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WEPVA066	The ESS Target Proton Beam Imaging System as in-Kind Contribution	3422
	E. Adli, R. Andersson, D.M. Bang, O. Dorholt, H. Gjersdal, O.M. Røhne University of Oslo, Oslo, Norway M.G. Ibison, C.P. Welsch The University of Liverpool, Liverpool, United Kingdom S. Joshi University College West, Trollhätan, Sweden T.J. Shea, C.A. Thomas ESS, Lund, Sweden
	Funding: This work is part of the Norwegian in-kind contribution to ESS. The ESS Target Proton Beam Imaging System will image the 5 MW ESS proton beam as it enters the spallation target. The system will operate in a harsh radiation environment, leading to a number of challenges: development of radiation hard photon sources, long aperture-restricted optical paths, and fast electronics to provide rapid response to beam anomalies. The newly formed accelerator group at the University of Oslo is the in-kind partner for the Imaging System. This paper outlines the main challenges of the Imaging System and how they are addressed within the collaborative nature of the in-kind project.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-WEPVA066
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Paper

Title

Page

Machine Protection Risk Management of the ESS Target System

1876

R. Andersson, E. Bargalló, L.S. Emås, J. Harborn, A. Lundgren, U. Odén, J. Ringnér, K. Sjögreen
ESS, Lund, Sweden

The European Spallation Source target system is, together with the proton linac, the main component in the spallation process. ESS will use a 4-ton, helium-cooled, rotating tungsten target for this purpose, and its protection and availability is paramount to the success of ESS. High demands are placed on all of the target equipment, including cooling, movement, rotation, and timing, in order to reach the facility-wide 95% availability goal for neutron production. Machine protection has defined a set of protection functions that are to be implemented for the target system. This paper describes the development of these protection functions through the use of classic HAZOPs combined with modern safety standard lifecycle management. The implementation of these functions is carried out through close collaboration between the target system owners and the machine protection group at ESS.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-TUPIK078

Export •

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

TUPIK079

Development and Status of Protection Functions for the Normal Conducting LINAC at ESS

1880

R. Andersson, E. Bargalló, S. Kövecses, A. Nordt, M. Zaera-Sanz
ESS, Lund, Sweden
C. Hilbes, M. Rejzek
ZHAW, Winterthur, Switzerland

The European Spallation Source faces a great challenge in succeeding with its ambitious availability goals. The aim is to construct a machine that allows for 95% availability for neutron beam production. This goal requires a robust protection system that allows for high availability by continuously monitoring and acting on the machine states, in order to avoid long facility downtimes and optimize the operation at any stage. The normal conducting section consists of the first 48 meters of the machine, and performs the initial acceleration, bunching, steering, and focusing of the beam, which sets it up for optimal transition into the superconducting section. Through a fit-for-purpose risk management process, a set of protection functions has been identified. The risk identification, analysis, and treatment were done in compliance with modern safety and ISO standards. This ensures that the risks, in this case downtime and equipment damage, are properly prevented and mitigated. This paper describes this process of defining the protection functions for the normal conducting linac at ESS.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-TUPIK079

Export •

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

WEPVA066

The ESS Target Proton Beam Imaging System as in-Kind Contribution

3422

E. Adli, R. Andersson, D.M. Bang, O. Dorholt, H. Gjersdal, O.M. Røhne
University of Oslo, Oslo, Norway
M.G. Ibison, C.P. Welsch
The University of Liverpool, Liverpool, United Kingdom
S. Joshi
University College West, Trollhätan, Sweden
T.J. Shea, C.A. Thomas
ESS, Lund, Sweden

Funding: This work is part of the Norwegian in-kind contribution to ESS.
The ESS Target Proton Beam Imaging System will image the 5 MW ESS proton beam as it enters the spallation target. The system will operate in a harsh radiation environment, leading to a number of challenges: development of radiation hard photon sources, long aperture-restricted optical paths, and fast electronics to provide rapid response to beam anomalies. The newly formed accelerator group at the University of Oslo is the in-kind partner for the Imaging System. This paper outlines the main challenges of the Imaging System and how they are addressed within the collaborative nature of the in-kind project.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-WEPVA066

Export •

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