ICALEPCS2017 - List of Authors (Nordt, A.)

Paper	Title	Page
TUPHA101	Applying the Functional System Interaction Process at ESS	649
	S. Kövecses de Carvalho, R. Andersson, E. Bargalló, A. Nordt ESS, Lund, Sweden R. Andersson University of Oslo, Oslo, Norway M. Rejzek ZHAW, Winterthur, Switzerland
	The European Spallation Source ERIC is being built in Lund, Sweden to complement the existing neutron sources in Europe and worldwide. ESS will be the bright-est neutron source ever built upon completion and aims to have an availability of 95% during steady state opera-tions. The purpose of Machine Protection at ESS is to protect the equipment in order to support the high availability. Due to the distributed nature of Machine Protection numerous design teams are involved to implement Protection Functions. The Machine Protection Development at ESS follows the Functional Protection lifecycle for System-of-systems developed at the facility. This paper focuses on the application of the Functional System Inter-action Process part of the Functional Protection method. To obtain the system interaction model, behavioural requirements and to allocate Protection Functions use case workshops are held. The feasibility of different system architectures and protection function implementations are discussed and simulated by going through fore-seen operational sequences, use cases. The different architectures and use cases are documented using Enter-prise Architect.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA101
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TUPHA106	ESS Accelarator Oxygen Depletion Hazard Detection System	666
	A. Toral Diez, S.L. Birch, M. Mansouri, A. Nordt, D. Paulic, Y.K. Sin ESS, Lund, Sweden
	At the European Spallation Source ERIC (ESS), cryogenic cooling is essential for various equipment of the facility. The ESS Superconducting LINAC and the ESS Cryomodule Test Stand, will require major cryogenic services in order to be supplied with liquid nitrogen and helium. Since the use of cryogenic fluids can be associated with Oxygen Depletion Hazard (ODH), the ESS Protection and Safety Systems group will install an ODH Detection System which is a PLC-based alarm system. This system will monitor real time Oxygen concentration levels in designated areas, with the aim to alarm personnel if the oxygen level is detected below certain thresholds. This paper gives an overview about the requirements, system architecture, hardware and software of the ODH Detection System in ESS Accelerator buildings
	Poster TUPHA106 [2.899 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA106
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TUPHA107	Technical and Organisational Complexities with a Distributed MP Strategy at ESS	670
	E. Bargalló, R. Andersson, S. Kövecses de Carvalho, A. Nordt, M. Zaera-Sanz ESS, Lund, Sweden
	The reliable protection of the ESS equipment is important for the success of the project. This requires multiple systems and subsystems to perform the required protection functions that prevent undesired hazardous events. The complexity of the machine, the different technical challenges and the intrinsic organisational difficulties for an in-kind project like ESS impose serious challenges to the distributed Machine Protection strategy. In this contribution, the difficulties and adopted solutions are described to exemplify the technical challenges encountered in the process.
	Poster TUPHA107 [0.200 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA107
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THCPA02	ESS Accelerator Safety Interlock System	1213
	D. Paulic, S.L. Birch, M. Mansouri, A. Nordt, Y.K. Sin, A. Toral Diez ESS, Lund, Sweden
	Providing and assuring safe conditions for personnel is a key parameter required to operate the European Spallation Source (ESS). The main purpose of the Personnel Safety Systems (PSS) at ESS is to protect workers from the facility's ionising prompt radiation hazards, but also identify as well as mitigate against other hazards such as high voltage or oxygen depletion. PSS consist of three systems: the Safety interlock system, the Access control system and the Oxygen deficiency hazard (ODH) detection system. The Safety interlock system ensures the safety functions of the PSS by controlling all hazardous equipment for starting the beam operation and powering the RF-powered units and allowing its operation when personnel is safe. This paper will describe the ESS PSS Accelerator Safety interlock system's scope, strategy, methodology and current status.
	Slides THCPA02 [4.292 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THCPA02
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Applying the Functional System Interaction Process at ESS

649

S. Kövecses de Carvalho, R. Andersson, E. Bargalló, A. Nordt
ESS, Lund, Sweden
R. Andersson
University of Oslo, Oslo, Norway
M. Rejzek
ZHAW, Winterthur, Switzerland

The European Spallation Source ERIC is being built in Lund, Sweden to complement the existing neutron sources in Europe and worldwide. ESS will be the bright-est neutron source ever built upon completion and aims to have an availability of 95% during steady state opera-tions. The purpose of Machine Protection at ESS is to protect the equipment in order to support the high availability. Due to the distributed nature of Machine Protection numerous design teams are involved to implement Protection Functions. The Machine Protection Development at ESS follows the Functional Protection lifecycle for System-of-systems developed at the facility. This paper focuses on the application of the Functional System Inter-action Process part of the Functional Protection method. To obtain the system interaction model, behavioural requirements and to allocate Protection Functions use case workshops are held. The feasibility of different system architectures and protection function implementations are discussed and simulated by going through fore-seen operational sequences, use cases. The different architectures and use cases are documented using Enter-prise Architect.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA101

Export •

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

TUPHA106

ESS Accelarator Oxygen Depletion Hazard Detection System

666

A. Toral Diez, S.L. Birch, M. Mansouri, A. Nordt, D. Paulic, Y.K. Sin
ESS, Lund, Sweden

At the European Spallation Source ERIC (ESS), cryogenic cooling is essential for various equipment of the facility. The ESS Superconducting LINAC and the ESS Cryomodule Test Stand, will require major cryogenic services in order to be supplied with liquid nitrogen and helium. Since the use of cryogenic fluids can be associated with Oxygen Depletion Hazard (ODH), the ESS Protection and Safety Systems group will install an ODH Detection System which is a PLC-based alarm system. This system will monitor real time Oxygen concentration levels in designated areas, with the aim to alarm personnel if the oxygen level is detected below certain thresholds. This paper gives an overview about the requirements, system architecture, hardware and software of the ODH Detection System in ESS Accelerator buildings

Poster TUPHA106 [2.899 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA106

Export •

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

TUPHA107

Technical and Organisational Complexities with a Distributed MP Strategy at ESS

670

E. Bargalló, R. Andersson, S. Kövecses de Carvalho, A. Nordt, M. Zaera-Sanz
ESS, Lund, Sweden

The reliable protection of the ESS equipment is important for the success of the project. This requires multiple systems and subsystems to perform the required protection functions that prevent undesired hazardous events. The complexity of the machine, the different technical challenges and the intrinsic organisational difficulties for an in-kind project like ESS impose serious challenges to the distributed Machine Protection strategy. In this contribution, the difficulties and adopted solutions are described to exemplify the technical challenges encountered in the process.

Poster TUPHA107 [0.200 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA107

Export •

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

THCPA02

ESS Accelerator Safety Interlock System

1213

D. Paulic, S.L. Birch, M. Mansouri, A. Nordt, Y.K. Sin, A. Toral Diez
ESS, Lund, Sweden

Providing and assuring safe conditions for personnel is a key parameter required to operate the European Spallation Source (ESS). The main purpose of the Personnel Safety Systems (PSS) at ESS is to protect workers from the facility's ionising prompt radiation hazards, but also identify as well as mitigate against other hazards such as high voltage or oxygen depletion. PSS consist of three systems: the Safety interlock system, the Access control system and the Oxygen deficiency hazard (ODH) detection system. The Safety interlock system ensures the safety functions of the PSS by controlling all hazardous equipment for starting the beam operation and powering the RF-powered units and allowing its operation when personnel is safe. This paper will describe the ESS PSS Accelerator Safety interlock system's scope, strategy, methodology and current status.

Slides THCPA02 [4.292 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THCPA02

Export •

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