IPAC2016 - List of Keywords (framework)

Paper	Title	Other Keywords	Page
TUOCB02	Low Secondary Electron Yield of Laser Treated Surfaces of Copper, Aluminium and Stainless Steel	electron, laser, cavity, photon	1089
	R. Valizadeh, P. Goudket, O.B. Malyshev, B.S. Sian, S. Wang STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom M.D. Cropper, S. Wang Loughborough University, Loughborough, Leicestershire, United Kingdom P. Goudket Cockcroft Institute, Warrington, Cheshire, United Kingdom B.S. Sian UMAN, Manchester, United Kingdom N. Sykes Micronanics Laser Solution Center, Didcot, United Kingdom
	Funding: STFC Reduction of SEY was achieved by surface engineering through laser ablation with a laser operating at • = 355 nm. It was shown that the SEY can be reduced to near or below 1 on copper, aluminium and 316LN stainless steel. The laser treated surfaces show an increased surface resistance, with a wide variation in resistance found de-pending on the exact treatment details. However, a treated copper surface with similar surface resistance to aluminium was produced.
	Slides TUOCB02 [94.339 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUOCB02
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WEPMR043	Analysis of Electrical Energy Consumption of Accelerator Reserach Facilities	operation, experiment, HOM, neutron	2370
	J. Stadlmann GSI, Darmstadt, Germany D. Batorowicz, C. Fuhr, J. Hanson, S. Leis TUD, Darmstadt, Germany M. Seidel PSI, Villigen PSI, Switzerland
	Funding: The work is part of EuCARD-2, partly funded by the European Commission, GA 312453. Optimization of energy efficiency and utilization of renewable energy sources has become a major focus of political and social policies, leading to increasing energy cost not only in Germany but also in the European energy market. Simultaneously the energy demand of future accelerator projects is estimated to rise compared to existing facilities, leading to overall increased energy costs. Energy efficiency could counteract this trend by reducing energy consumption for a given research goal. This work aims to find recommendations for saving potential in existing research accelerators as well as guidelines for construction of future facilities. In order to identify and develop key figures for comparison between several international particle accelerator facilities, data has been collected by a questionnaire developed in cooperation between GSI and TUD, Darmstadt. We present the first results of it's evaluation.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-WEPMR043
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WEPMR055	openSE: a Systems Engineering Framework Particularly Suited to Particle Accelerator Studies and Development Projects	project-management, radiation, operation, electronics	2398
	P. Bonnal, B. Feral, K. Kershaw, B. Nicquevert CERN, Geneva, Switzerland M. Baudin ENS, Paris, France L. Lari ESS, Lund, Sweden J. Le Cardinal École Centrale/Supélec, Chatenay Malabry, France
	Particle accelerator projects share many characteristics with industrial projects. However, experience has shown that best practice of industrial project management is not always well suited to particle accelerator projects. Major differences include the number and complexity of technologies involved, the importance of collaborative work, development phases that can last more than a decade, and the importance of telerobotics and remote handling to address future preventive and corrective maintenance requirements due to induced radioactivity, to cite just a few. The openSE framework was developed as part of the PURESAFE ITN project funded by the European Commission; it is a systems engineering and project management framework specifically designed for scientific facilities' systems and equipment studies and development projects. Best practices in project management, in systems and requirements engineering, in telerobotics and remote handling and in radiation safety management were used as sources of inspiration, together with analysis of current practices surveyed at CERN, GSI and ESS.
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WEPMY043	Parallel Particle Movement Simulation Algorithm Based on Heterogeneous Computing	GPU, hardware, simulation, controls	2654
	L.G. Zhang, L. Cao, K. Fan, J. Huang, K.F. Liu, W. Qi, J. Yang HUST, Wuhan, People's Republic of China
	Particle in cell (PIC) algorithm studies the self-consistent motion of multi-particle system by solving equations of particle dynamics, this algorithm is widely used to evaluate the nonlinear space charge effect of the high intensity or low energy beam. In order to reduce the random noise in the simulation, a huge number of particles should be traced, the process expends many computer hardware resources and a lot of computing time. Heterogeneous computing can greatly improve the efficiency of large quantities of the particle tracking by making full use of different types of computing resources. In this paper we give the algorithm which uses both CPU and GPU to trace the particles in electromagnetic field. The results show that the given algorithm increases the efficiency significantly.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-WEPMY043
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WEPOR045	PACMAN - the MedAustron Measurement Data Analysis Framework	interface, GUI, data-analysis, software	2774
	A. Wastl, A. Garonna, T.K.D. Kulenkampff, S. Nowak EBG MedAustron, Wr. Neustadt, Austria
	During the commissioning of the synchrotron-based MedAustron accelerator facility, the analysis and interpretation of data of various sources was required. A dedicated framework was developed to analyze the raw data provided by the accelerator control system (ACS). A tested and documented software core with a simple and standardized interface allows also non-programming professionals to easily base their applications on this framework which is essential to efficiently make progress in the dynamic environment of commissioning. This document presents the structure of the framework, the interface between the software core and higher level applications and gives an example using all framework levels.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-WEPOR045
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WEPOR051	Second Generation LHC Analysis Framework: Workload-based and User-oriented Solution	experiment, simulation, factory, data-analysis	2784
	S. Boychenko, C. Aguilera-Padilla, M.A. Galilée, J.C. Garnier, A.A. Gorzawski, K.H. Krol, J. Makai, M. Osinski, M.C. Poeschl, T.M. Ribeiro, A. Stanisz, M. Zerlauth CERN, Geneva, Switzerland M.Z. Rela University of Coimbra, Coimbra, Portugal
	Consolidation and upgrades of accelerator equipment during the first long LHC shutdown period enabled particle collisions at energy levels almost twice higher compared to the first operational phase. Consequently, the software infrastructure providing vital information for machine operation and its optimisation needs to be updated to keep up with the challenges imposed by the increasing amount of collected data and the complexity of analysis. Current tools, designed more than a decade ago, have proven their reliability by significantly outperforming initially provisioned workloads, but are unable to scale efficiently to satisfy the growing needs of operators and hardware experts. In this paper we present our progress towards the development of a new workload-driven solution for LHC transient data analysis, based on identified user requirements. An initial setup and study of modern data storage and processing engines appropriate for the accelerator data analysis was conducted. First simulations of the proposed novel partitioning and replication approach, targeting a highly efficient service for heterogeneous analysis requests, were designed and performed.
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WEPOY041	Fast Tracking of Nonlinear Dynamics in the ESS Linac Simulator via Particle-Count Invariance	sextupole, space-charge, proton, multipole	3080
	B.T. Folsom, E. Laface ESS, Lund, Sweden
	Real-time beam modeling has been used in accelerator diagnostics for several decades. Along the way, the theory for matrix calculations of linear forces has matured, allowing for fast calculations of a beam's momentum and position distributions. This formalism becomes complicated and ultimately breaks down with high-order beam elements like sextupoles. Such elements can be accurately modeled with a Lie-algebra approach, but these techniques are generally implemented in slower, offline multiparticle tracking software. Here, we demonstrate an adaptation of the conventional Lie techniques for rapid first-order tracking of position, which is accomplished by treating a bunch's particle count as an invariant.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-WEPOY041
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WEPOY043	Plans for the European Spallation Source Beam Physics Control Software	linac, operation, software, controls	3086
	Y.I. Levinsen, R. De Prisco, M. Eshraqi, E. Laface, R. Miyamoto, M. Muñoz ESS, Lund, Sweden I. List Cosylab, Ljubljana, Slovenia
	The commissioning and operations planning for the European Spallation Source is currently being defined. It is foreseen that the ESS will begin to deliver beam on target by mid 2019, something which is urging a well structured and thought through plan both for commissioning and operations. In this paper we will discuss the plans for beam physics operational software, priorities and software services needed during the different stages of beam commissioning.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-WEPOY043
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WEPOY050	A Differential Algebraic Framework for the Fast Indirect Boundary Element Method	multipole, simulation, space-charge, controls	3107
	A.J. Gee, B. Erdelyi Northern Illinois University, DeKalb, Illinois, USA B. Erdelyi ANL, Argonne, USA
	Beam physics at the intensity frontier must account for the beams' realistic surroundings on their dynamics in an accurate and efficient manner. Mathematically, the problem can be expressed as a Poisson PDE with given boundary conditions. Commonly, the Poisson boundary value problem is solved locally within many volume elements. However, it is known the PDE may be re-expressed as indirect bound- ary integral equations (BIE) which give a global solution. By solving the BIEs on M surface elements, we arrive at the indirect boundary element method (iBEM). Iteratively solving this dense linear system of form Ax = b scales like (m_iterations M² ). Accelerating with the fast multipole method (FMM) can reduce this to O(M) if m_iterations << M. For N evaluation points, the total complexity would be O(M) + O(N) or O(N) with N = M. We have implemented a constant element version of this fast iBEM based on our previous work with the FMM in the differential algebraic (DA) framework. This implementation is to illustrate the flexibility and accuracy of our method. A future version will focus on allowing for higher order elements. Sauter, S. and C. Schwab. Boundary Element Methods (2011) ** Abeyratne, S., S. Manikonda, and B. Erdelyi. "A novel differential algebraic adaptive fast multipole method." IPAC 2013: 1055-1057.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-WEPOY050
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THPMY016	Graphene Coating for the Reduction of the Secondary Electron Yield	electron, cavity, vacuum, proton	3688
	B.S. Sian, G.X. Xia, G.L. Yu UMAN, Manchester, United Kingdom I. Kinloch, L. Lin, V. Valles University of Manchester, Manchester, United Kingdom O.B. Malyshev, R. Valizadeh STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom O.B. Malyshev, R. Valizadeh, G.X. Xia Cockcroft Institute, Warrington, Cheshire, United Kingdom
	Secondary electron emission is a limiting factor for a performance of many instruments ranging from small gauges and detectors to waveguides and charged particle accelerators. There have been several methods of reducing this effect, e.g. the method of using a material with a low Secondary Electron Yield (SEY) or thin film coating with such a low SEY material. This paper describes the effect of SEY mitigation with graphene coatings on aluminium substrate. The maximum SEY (dmax) was decreased from 2.4 for bare aluminium to 1.4 with a graphene coating. Measurements were taken using an electron gun and a Faraday cup, the electron energies varied between 80 eV and 1 keV with a bias of -18 V on the sample. Other biases of -3, -5, -9, -25, -50 and -75 V were also tested however there was no effect on the SEY.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPMY016
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THPOY013	Signal Archiving System for RISP Heavy-ion Accelerator Control System	controls, EPICS, heavy-ion, ion	4113
	S.H. Nam Korea University, Seoul, Republic of Korea H. Jang, S. Lee, M.J. Park, C.W. Son, H.J. Son IBS, Daejeon, Republic of Korea E.-S. Kim Korea University Sejong Campus, Sejong, Republic of Korea
	RISP control system uses the EPICS real time distributed control system, which is software framework for stable operation of the accelerator. The output signal from all machines and devices must be archived by EPICS framework, and optimized signal archiver system is needed for each accelerator facility. Signal archiver method using the EPICS framework has three significant ways. First is the classic channel archiver using the file base method and the second is the RDB archiver using the relational database. But classic channel archiver has a problem that the index file containing information of data block corresponding PV data mismatch with real data. Also, there is a problem in the performance of file I/O in RDB archiver. SLAC has developed archiver appliance utility to resolve these problems, and the usage of archiver appliance in EPICS community has gradually increased. RISP choose the archiver appliance to also signal archiver solution. However, archiver appliance is not optimized for our RISP heavy-ion accelerator control system. Thus, we will develop the customized signal archiver system for RISP heavy-ion accelerator control system.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPOY013
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THPOY015	Control System Developments for the MYRRHA Linac	controls, linac, rfq, EPICS	4116
	R. Modic Cosylab, Ljubljana, Slovenia J.-L. Biarrotte IPN, Orsay, France D. Bondoux, F. Bouly LPSC, Grenoble Cedex, France L. Medeiros Romão, D. Vandeplassche SCK•CEN, Mol, Belgium
	Funding: This work is being supported by the Euratom research and training programme 2014-2018 under grant agreement N°662186 (MYRTE project). The goal of the MYRRHA project is to demonstrate the technical feasibility of transmutation in a 100 MWth Accelerator Driven System by building a new flexible irradiation complex in Mol (Belgium). The MYRRHA facility requires a 600 MeV linear accelerator delivering a maximum proton flux of 4 mA in continuous operation, with an additional requirement for exceptional reliability. The control system of the future MYRRHA linac will have an essential role to play in this extreme reliability scenario. On the one hand the intrinsic reliability of the entire control system must be ensured. On the other hand control system will have to take up very high level duties of complex decision taking. This paper summarizes the ongoing developments for the concept design of such a control system. The related experimental activities performed and planned around the MYRRHA injector platform (ECR ion source + LEBT + RFQ) will also be described.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPOY015
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THPOY046	Data Analysis and System Survey Framework for the LHC Beam Loss Monitoring System	detector, status, database, operation	4207
	C. Xu, B. Dehning, C. Zamantzas CERN, Geneva, Switzerland
	A data analysis framework has been developed to perform systematic queries and automatic analysis of the large amount of data produced by the LHC beam loss monitoring system. The framework is used to provide continuous system supervision and can give advance warning of any potential system failures. It is also used to facilitate LHC beam loss analysis for determining the critical beam-abort threshold values. This paper describes the functionality of the framework and the results achieved from the analysis.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPOY046
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Paper

Title

Other Keywords

Page

TUOCB02

Low Secondary Electron Yield of Laser Treated Surfaces of Copper, Aluminium and Stainless Steel

electron, laser, cavity, photon

1089

R. Valizadeh, P. Goudket, O.B. Malyshev, B.S. Sian, S. Wang
STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
M.D. Cropper, S. Wang
Loughborough University, Loughborough, Leicestershire, United Kingdom
P. Goudket
Cockcroft Institute, Warrington, Cheshire, United Kingdom
B.S. Sian
UMAN, Manchester, United Kingdom
N. Sykes
Micronanics Laser Solution Center, Didcot, United Kingdom

Funding: STFC
Reduction of SEY was achieved by surface engineering through laser ablation with a laser operating at • = 355 nm. It was shown that the SEY can be reduced to near or below 1 on copper, aluminium and 316LN stainless steel. The laser treated surfaces show an increased surface resistance, with a wide variation in resistance found de-pending on the exact treatment details. However, a treated copper surface with similar surface resistance to aluminium was produced.

Slides TUOCB02 [94.339 MB]

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WEPMR043

Analysis of Electrical Energy Consumption of Accelerator Reserach Facilities

operation, experiment, HOM, neutron

2370

J. Stadlmann
GSI, Darmstadt, Germany
D. Batorowicz, C. Fuhr, J. Hanson, S. Leis
TUD, Darmstadt, Germany
M. Seidel
PSI, Villigen PSI, Switzerland

Funding: The work is part of EuCARD-2, partly funded by the European Commission, GA 312453.
Optimization of energy efficiency and utilization of renewable energy sources has become a major focus of political and social policies, leading to increasing energy cost not only in Germany but also in the European energy market. Simultaneously the energy demand of future accelerator projects is estimated to rise compared to existing facilities, leading to overall increased energy costs. Energy efficiency could counteract this trend by reducing energy consumption for a given research goal. This work aims to find recommendations for saving potential in existing research accelerators as well as guidelines for construction of future facilities. In order to identify and develop key figures for comparison between several international particle accelerator facilities, data has been collected by a questionnaire developed in cooperation between GSI and TUD, Darmstadt. We present the first results of it's evaluation.

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WEPMR055

openSE: a Systems Engineering Framework Particularly Suited to Particle Accelerator Studies and Development Projects

project-management, radiation, operation, electronics

2398

P. Bonnal, B. Feral, K. Kershaw, B. Nicquevert
CERN, Geneva, Switzerland
M. Baudin
ENS, Paris, France
L. Lari
ESS, Lund, Sweden
J. Le Cardinal
École Centrale/Supélec, Chatenay Malabry, France

Particle accelerator projects share many characteristics with industrial projects. However, experience has shown that best practice of industrial project management is not always well suited to particle accelerator projects. Major differences include the number and complexity of technologies involved, the importance of collaborative work, development phases that can last more than a decade, and the importance of telerobotics and remote handling to address future preventive and corrective maintenance requirements due to induced radioactivity, to cite just a few. The openSE framework was developed as part of the PURESAFE ITN project funded by the European Commission; it is a systems engineering and project management framework specifically designed for scientific facilities' systems and equipment studies and development projects. Best practices in project management, in systems and requirements engineering, in telerobotics and remote handling and in radiation safety management were used as sources of inspiration, together with analysis of current practices surveyed at CERN, GSI and ESS.

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WEPMY043

Parallel Particle Movement Simulation Algorithm Based on Heterogeneous Computing

GPU, hardware, simulation, controls

2654

L.G. Zhang, L. Cao, K. Fan, J. Huang, K.F. Liu, W. Qi, J. Yang
HUST, Wuhan, People's Republic of China

Particle in cell (PIC) algorithm studies the self-consistent motion of multi-particle system by solving equations of particle dynamics, this algorithm is widely used to evaluate the nonlinear space charge effect of the high intensity or low energy beam. In order to reduce the random noise in the simulation, a huge number of particles should be traced, the process expends many computer hardware resources and a lot of computing time. Heterogeneous computing can greatly improve the efficiency of large quantities of the particle tracking by making full use of different types of computing resources. In this paper we give the algorithm which uses both CPU and GPU to trace the particles in electromagnetic field. The results show that the given algorithm increases the efficiency significantly.

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WEPOR045

PACMAN - the MedAustron Measurement Data Analysis Framework

interface, GUI, data-analysis, software

2774

A. Wastl, A. Garonna, T.K.D. Kulenkampff, S. Nowak
EBG MedAustron, Wr. Neustadt, Austria

During the commissioning of the synchrotron-based MedAustron accelerator facility, the analysis and interpretation of data of various sources was required. A dedicated framework was developed to analyze the raw data provided by the accelerator control system (ACS). A tested and documented software core with a simple and standardized interface allows also non-programming professionals to easily base their applications on this framework which is essential to efficiently make progress in the dynamic environment of commissioning. This document presents the structure of the framework, the interface between the software core and higher level applications and gives an example using all framework levels.

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WEPOR051

Second Generation LHC Analysis Framework: Workload-based and User-oriented Solution

experiment, simulation, factory, data-analysis

2784

S. Boychenko, C. Aguilera-Padilla, M.A. Galilée, J.C. Garnier, A.A. Gorzawski, K.H. Krol, J. Makai, M. Osinski, M.C. Poeschl, T.M. Ribeiro, A. Stanisz, M. Zerlauth
CERN, Geneva, Switzerland
M.Z. Rela
University of Coimbra, Coimbra, Portugal

Consolidation and upgrades of accelerator equipment during the first long LHC shutdown period enabled particle collisions at energy levels almost twice higher compared to the first operational phase. Consequently, the software infrastructure providing vital information for machine operation and its optimisation needs to be updated to keep up with the challenges imposed by the increasing amount of collected data and the complexity of analysis. Current tools, designed more than a decade ago, have proven their reliability by significantly outperforming initially provisioned workloads, but are unable to scale efficiently to satisfy the growing needs of operators and hardware experts. In this paper we present our progress towards the development of a new workload-driven solution for LHC transient data analysis, based on identified user requirements. An initial setup and study of modern data storage and processing engines appropriate for the accelerator data analysis was conducted. First simulations of the proposed novel partitioning and replication approach, targeting a highly efficient service for heterogeneous analysis requests, were designed and performed.

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WEPOY041

Fast Tracking of Nonlinear Dynamics in the ESS Linac Simulator via Particle-Count Invariance

sextupole, space-charge, proton, multipole

3080

B.T. Folsom, E. Laface
ESS, Lund, Sweden

Real-time beam modeling has been used in accelerator diagnostics for several decades. Along the way, the theory for matrix calculations of linear forces has matured, allowing for fast calculations of a beam's momentum and position distributions. This formalism becomes complicated and ultimately breaks down with high-order beam elements like sextupoles. Such elements can be accurately modeled with a Lie-algebra approach, but these techniques are generally implemented in slower, offline multiparticle tracking software. Here, we demonstrate an adaptation of the conventional Lie techniques for rapid first-order tracking of position, which is accomplished by treating a bunch's particle count as an invariant.

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WEPOY043

Plans for the European Spallation Source Beam Physics Control Software

linac, operation, software, controls

3086

Y.I. Levinsen, R. De Prisco, M. Eshraqi, E. Laface, R. Miyamoto, M. Muñoz
ESS, Lund, Sweden
I. List
Cosylab, Ljubljana, Slovenia

The commissioning and operations planning for the European Spallation Source is currently being defined. It is foreseen that the ESS will begin to deliver beam on target by mid 2019, something which is urging a well structured and thought through plan both for commissioning and operations. In this paper we will discuss the plans for beam physics operational software, priorities and software services needed during the different stages of beam commissioning.

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WEPOY050

A Differential Algebraic Framework for the Fast Indirect Boundary Element Method

multipole, simulation, space-charge, controls

3107

A.J. Gee, B. Erdelyi
Northern Illinois University, DeKalb, Illinois, USA
B. Erdelyi
ANL, Argonne, USA

Beam physics at the intensity frontier must account for the beams' realistic surroundings on their dynamics in an accurate and efficient manner. Mathematically, the problem can be expressed as a Poisson PDE with given boundary conditions. Commonly, the Poisson boundary value problem is solved locally within many volume elements. However, it is known the PDE may be re-expressed as indirect bound- ary integral equations (BIE) which give a global solution*. By solving the BIEs on M surface elements, we arrive at the indirect boundary element method (iBEM). Iteratively solving this dense linear system of form Ax = b scales like (m_iterations M² ). Accelerating with the fast multipole method (FMM) can reduce this to O(M) if m_iterations << M. For N evaluation points, the total complexity would be O(M) + O(N) or O(N) with N = M. We have implemented a constant element version of this fast iBEM based on our previous work with the FMM in the differential algebraic (DA) framework**. This implementation is to illustrate the flexibility and accuracy of our method. A future version will focus on allowing for higher order elements.
* Sauter, S. and C. Schwab. Boundary Element Methods (2011)
** Abeyratne, S., S. Manikonda, and B. Erdelyi. "A novel differential algebraic adaptive fast multipole method." IPAC 2013: 1055-1057.

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THPMY016

Graphene Coating for the Reduction of the Secondary Electron Yield

electron, cavity, vacuum, proton

3688

B.S. Sian, G.X. Xia, G.L. Yu
UMAN, Manchester, United Kingdom
I. Kinloch, L. Lin, V. Valles
University of Manchester, Manchester, United Kingdom
O.B. Malyshev, R. Valizadeh
STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
O.B. Malyshev, R. Valizadeh, G.X. Xia
Cockcroft Institute, Warrington, Cheshire, United Kingdom

Secondary electron emission is a limiting factor for a performance of many instruments ranging from small gauges and detectors to waveguides and charged particle accelerators. There have been several methods of reducing this effect, e.g. the method of using a material with a low Secondary Electron Yield (SEY) or thin film coating with such a low SEY material. This paper describes the effect of SEY mitigation with graphene coatings on aluminium substrate. The maximum SEY (dmax) was decreased from 2.4 for bare aluminium to 1.4 with a graphene coating. Measurements were taken using an electron gun and a Faraday cup, the electron energies varied between 80 eV and 1 keV with a bias of -18 V on the sample. Other biases of -3, -5, -9, -25, -50 and -75 V were also tested however there was no effect on the SEY.

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THPOY013

Signal Archiving System for RISP Heavy-ion Accelerator Control System

controls, EPICS, heavy-ion, ion

4113

S.H. Nam
Korea University, Seoul, Republic of Korea
H. Jang, S. Lee, M.J. Park, C.W. Son, H.J. Son
IBS, Daejeon, Republic of Korea
E.-S. Kim
Korea University Sejong Campus, Sejong, Republic of Korea

RISP control system uses the EPICS real time distributed control system, which is software framework for stable operation of the accelerator. The output signal from all machines and devices must be archived by EPICS framework, and optimized signal archiver system is needed for each accelerator facility. Signal archiver method using the EPICS framework has three significant ways. First is the classic channel archiver using the file base method and the second is the RDB archiver using the relational database. But classic channel archiver has a problem that the index file containing information of data block corresponding PV data mismatch with real data. Also, there is a problem in the performance of file I/O in RDB archiver. SLAC has developed archiver appliance utility to resolve these problems, and the usage of archiver appliance in EPICS community has gradually increased. RISP choose the archiver appliance to also signal archiver solution. However, archiver appliance is not optimized for our RISP heavy-ion accelerator control system. Thus, we will develop the customized signal archiver system for RISP heavy-ion accelerator control system.

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reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPOY013

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THPOY015

Control System Developments for the MYRRHA Linac

controls, linac, rfq, EPICS

4116

R. Modic
Cosylab, Ljubljana, Slovenia
J.-L. Biarrotte
IPN, Orsay, France
D. Bondoux, F. Bouly
LPSC, Grenoble Cedex, France
L. Medeiros Romão, D. Vandeplassche
SCK•CEN, Mol, Belgium

Funding: This work is being supported by the Euratom research and training programme 2014-2018 under grant agreement N°662186 (MYRTE project).
The goal of the MYRRHA project is to demonstrate the technical feasibility of transmutation in a 100 MWth Accelerator Driven System by building a new flexible irradiation complex in Mol (Belgium). The MYRRHA facility requires a 600 MeV linear accelerator delivering a maximum proton flux of 4 mA in continuous operation, with an additional requirement for exceptional reliability. The control system of the future MYRRHA linac will have an essential role to play in this extreme reliability scenario. On the one hand the intrinsic reliability of the entire control system must be ensured. On the other hand control system will have to take up very high level duties of complex decision taking. This paper summarizes the ongoing developments for the concept design of such a control system. The related experimental activities performed and planned around the MYRRHA injector platform (ECR ion source + LEBT + RFQ) will also be described.

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reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPOY015

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THPOY046

Data Analysis and System Survey Framework for the LHC Beam Loss Monitoring System

detector, status, database, operation

4207

C. Xu, B. Dehning, C. Zamantzas
CERN, Geneva, Switzerland

A data analysis framework has been developed to perform systematic queries and automatic analysis of the large amount of data produced by the LHC beam loss monitoring system. The framework is used to provide continuous system supervision and can give advance warning of any potential system failures. It is also used to facilitate LHC beam loss analysis for determining the critical beam-abort threshold values. This paper describes the functionality of the framework and the results achieved from the analysis.

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reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPOY046

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