ICALEPCS2017 - List of Keywords (ion-source)

Paper	Title	Other Keywords	Page
TUPHA106	ESS Accelarator Oxygen Depletion Hazard Detection System	ion, PLC, cryogenics, controls	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)

THCPA02	ESS Accelerator Safety Interlock System	ion, controls, radiation, operation	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)

THPHA028	Status Update for the HIT Accelerator Control System	ion, controls, database, GUI	1409
	J.M. Mosthaf, Th. Haberer, S. Hanke, K. Höppner, A. Peters HIT, Heidelberg, Germany
	Funding: HIT Betriebs GmbH Changes in the accelerator beamline of the Heidelberg Ionbeam Therapy-Center necessitated a relevant change in the accelerator control system. Specifically the addition of a third ion source to the LEBT beamline dictated an expansion of the Virtual Accelerator structure both in the database and the DCU software. The decision to go to a virtual server infrastructure to meet the demands for better redundancy and performance prompted an overhaul of the ACS software and hardware base. Two new redundant virtualization servers and doubled storage systems helped to increase safety and system performance. To take advantage of the newer hardware and 64-bit operating systems, all software was converted to a 64 bit base. Additionally, as a quality of life and security improvement, the download and flash functionality of the ACS were updated to enhance performance and security checks for quality assurance measures. The new virtualization host server and infrastructure hardware in conjunction with the 64 bit update and ensuing efficiency increases have resulted in a safer and significantly faster ACS with higher redundancy in case of hardware failure.
	Poster THPHA028 [0.961 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA028
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPHA035	High Level Control System Code with Automatic Parametric Characterization Capabilities	ion, EPICS, interface, controls	1432
	L. Neri, L. Celona, S. Gammino INFN/LNS, Catania, Italy
	Several degree of freedom have been introduced in the design of the proton source (named PS-ESS) and in the Low Energy Beam Transport line (LEBT) developed at INFN-LNS for the European Spallation Source (ESS) project. The beam commissioning was focused on the most important working parameters in order to optimize the beam production performance taking into account the ESS accelerator requirements. The development of a MATLAB custom code able to interact with the EPICS control system framework was needed to optimize the short time available for the beam commissioning. The code was used as an additional high level control system layer able to change all source parameters and read all beam diagnostics output data. More than four hundred of thousand configurations have been explored in a wide range of working parameters. The capability to connect Matlab to EPICS enabled also the developing of a genetic algorithm optimization code able to automatic tune the source towards a precise current value and stability. A dedicated graphical tool was developed for the data analysis. Unexpected benefit come out from this approach that will be shown in this paper.
	Poster THPHA035 [1.420 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA035
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPHA081	LO Board for 704.42 MHz Cavity Simulator for ESS	ion, LLRF, cavity, controls	1573
	I. Rutkowski, K. Czuba, M.G. Grzegrzolka Warsaw University of Technology, Institute of Electronic Systems, Warsaw, Poland
	Funding: Work supported by Polish Ministry of Science and Higher Education, decision number DIR/WK/2016/03 This paper describes the requirements, architecture, and measurements results of the local oscillator (LO) board prototype. The design will provide low phase noise clock and heterodyne signals for the 704.42 MHz Cavity Simulator for the European Spallation Source. A field detection has critical influence on the simulation's performance and its quality depends on the quality of the two aforementioned signals. The clock frequency is a subharmonic of the reference frequency and choice of the frequency divider generating the clock signals is discussed. The performance of selected dividers was compared. The LO frequency must be synthesized and frequency synthesis schemes are investigated. Critical components used in the direct analog scheme are identified and their selection criteria were given.
	Poster THPHA081 [1.406 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA081
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

TUPHA106

ESS Accelarator Oxygen Depletion Hazard Detection System

ion, PLC, cryogenics, controls

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)

THCPA02

ESS Accelerator Safety Interlock System

ion, controls, radiation, operation

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)

THPHA028

Status Update for the HIT Accelerator Control System

ion, controls, database, GUI

1409

J.M. Mosthaf, Th. Haberer, S. Hanke, K. Höppner, A. Peters
HIT, Heidelberg, Germany

Funding: HIT Betriebs GmbH
Changes in the accelerator beamline of the Heidelberg Ionbeam Therapy-Center necessitated a relevant change in the accelerator control system. Specifically the addition of a third ion source to the LEBT beamline dictated an expansion of the Virtual Accelerator structure both in the database and the DCU software. The decision to go to a virtual server infrastructure to meet the demands for better redundancy and performance prompted an overhaul of the ACS software and hardware base. Two new redundant virtualization servers and doubled storage systems helped to increase safety and system performance. To take advantage of the newer hardware and 64-bit operating systems, all software was converted to a 64 bit base. Additionally, as a quality of life and security improvement, the download and flash functionality of the ACS were updated to enhance performance and security checks for quality assurance measures. The new virtualization host server and infrastructure hardware in conjunction with the 64 bit update and ensuing efficiency increases have resulted in a safer and significantly faster ACS with higher redundancy in case of hardware failure.

Poster THPHA028 [0.961 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA028

Export •

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

THPHA035

High Level Control System Code with Automatic Parametric Characterization Capabilities

ion, EPICS, interface, controls

1432

L. Neri, L. Celona, S. Gammino
INFN/LNS, Catania, Italy

Several degree of freedom have been introduced in the design of the proton source (named PS-ESS) and in the Low Energy Beam Transport line (LEBT) developed at INFN-LNS for the European Spallation Source (ESS) project. The beam commissioning was focused on the most important working parameters in order to optimize the beam production performance taking into account the ESS accelerator requirements. The development of a MATLAB custom code able to interact with the EPICS control system framework was needed to optimize the short time available for the beam commissioning. The code was used as an additional high level control system layer able to change all source parameters and read all beam diagnostics output data. More than four hundred of thousand configurations have been explored in a wide range of working parameters. The capability to connect Matlab to EPICS enabled also the developing of a genetic algorithm optimization code able to automatic tune the source towards a precise current value and stability. A dedicated graphical tool was developed for the data analysis. Unexpected benefit come out from this approach that will be shown in this paper.

Poster THPHA035 [1.420 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA035

Export •

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

THPHA081

LO Board for 704.42 MHz Cavity Simulator for ESS

ion, LLRF, cavity, controls

1573

I. Rutkowski, K. Czuba, M.G. Grzegrzolka
Warsaw University of Technology, Institute of Electronic Systems, Warsaw, Poland

Funding: Work supported by Polish Ministry of Science and Higher Education, decision number DIR/WK/2016/03
This paper describes the requirements, architecture, and measurements results of the local oscillator (LO) board prototype. The design will provide low phase noise clock and heterodyne signals for the 704.42 MHz Cavity Simulator for the European Spallation Source. A field detection has critical influence on the simulation's performance and its quality depends on the quality of the two aforementioned signals. The clock frequency is a subharmonic of the reference frequency and choice of the frequency divider generating the clock signals is discussed. The performance of selected dividers was compared. The LO frequency must be synthesized and frequency synthesis schemes are investigated. Critical components used in the direct analog scheme are identified and their selection criteria were given.

Poster THPHA081 [1.406 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA081

Export •

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