ICALEPCS2019 - List of Keywords (neutron)

Paper	Title	Other Keywords	Page
MOAPP03	Control System Plans for SNS Upgrade Projects	controls, target, EPICS, experiment	12
	S.M. Hartman, K.S. White ORNL, Oak Ridge, Tennessee, USA
	Funding: This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract number DE-AC05-00OR22725. The Spallation Neutron Source at Oak Ridge National Laboratory is planning two major upgrades to the facility. The Proton Power Upgrade project, currently underway, will double the machine power from 1.4 to 2.8 MW by adding seven additional cryomodules and associated equipment. The Second Target Station project, currently in conceptual design, will construct a new target station effectively doubling the potential scientific output of the facility. This paper discusses the control system upgrades required to integrate these projects into the existing EPICS based control systems used for the machine and neutron instrument beamlines. While much of the control system can be replicated from existing solutions, some systems require new hardware and software. Operating two target stations simultaneously will require a new run permit system to safely manage beam delivery.
	Slides MOAPP03 [32.100 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOAPP03
About •	paper received ※ 02 October 2019 paper accepted ※ 08 October 2019 issue date ※ 30 August 2020
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MOCPL01	IBEX: Beamline Control at ISIS Pulsed Neutron and Muon Source	controls, EPICS, experiment, software	59
	K.V.L. Baker, F.A. Akeroyd, D.P. Keymer, T. Löhnert, C. Moreton-Smith, D.E. Oram STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom J.R. Holt, T.A. Willemsen, K. Woods Tessella, Abingdon, United Kingdom
	For most of its over 30 years of operation the ISIS Neutron and Muon Source has been using bespoke control software on its beamlines. In the last few years, we have been converting the beamline control software to IBEX, which is based on the Open Source EPICS toolkit. More than half the instruments at ISIS are now converted. IBEX must be robust and flexible enough to allow instrument scientists to perform the many experiments they can conceive of. Using EPICS as a base, we have built Python services and scripting support as well as developing an Eclipse/RCP GUI based on Control System Studio*. We use an Agile based development methodology with heavy use of automated testing and device emulators. As we move to the final implementation stage, we are handling new instrument challenges (such as reflectometry) and providing new functionality (live neutron data view, script generator and server). This presentation will cover an overview of the IBEX architecture, our development practices, what is currently in progress, and our future plans. J. Phys. Conf. Ser. 1021 (2018) 012019 https://epics-controls.org/ *http://controlsystemstudio.org/
	Slides MOCPL01 [5.325 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOCPL01
About •	paper received ※ 27 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020
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MOMPL008	New Neutron Sensitive Beam Loss Monitor (nBLM)	detector, controls, EPICS, PLC	137
	Y. Mariette, Q. Bertrand, F. Gougnaud, T.J. Joannem, V. Nadot, T. Papaevangelou, L. Segui CEA-IRFU, Gif-sur-Yvette, France F.S. Alves, I. Dolenc Kittelmann ESS, Lund, Sweden W. Cichalewski, G.W. Jabłoński, W. Jałmużna, R. Kiełbik TUL-DMCS, Łódź, Poland
	The beam loss detection is of the utmost importance for accelerator safety. At CEA, we are closely collaborating with ESS and DMCS on development of ESS nBLM. The system is based on Micromegas* gaseous detector sensitives to fast neutrons produced when beam particles hit the accelerator materials. This detector has powerful features: reliable neutron detection and fast time response. The nBLM control system provides slow monitoring, fast security based on neutron counting and post mortem data. It is fully handled by EPICS, which drives 3 different subsystems: a Siemens PLC regulates the gas line, a CAEN crate controls low and high voltages, and a MTCA system based on IOxOS boards is in charge of the fast data processing for 16 detectors. The detector signal is digitized by the 250 Ms/s ADC, which is further processed by the firmware developed by DMCS and finally retrieved and sent to EPICS network. For other accelerator projects, we are designing nBLM system close to ESS nBLM one. In order to be able to sustain the full control system, we are developing the firmware and the driver. This paper summarizes CEA’s work on the nBLM control system for the ESS and other accelerators. *Micromegas: http://irfu.cea.fr/en/Phocea/Vie_des_labos/Ast/ast_technique.php?id_ast=2307
	Poster MOMPL008 [2.475 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOMPL008
About •	paper received ※ 26 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020
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MOMPR009	Prototype Design for Upgrading East Safety and Interlock System	controls, plasma, interface, status	179
	Z. Zhang, Z. Ji, Y. Wang, B. Xiao ASIPP, Hefei, People’s Republic of China F. Xia Southwestern Institute of Physics, Chengdu, Sichuan, People’s Republic of China
	Funding: This work is supported by the National Key R&D Program of China under Grant No.2017YFE0300504, 2018YFE0302104. The national project of experimental advanced superconducting tokamak (EAST) is an important part of the fusion development stratagem of China, which is the first fully superconducting tokamak with a non-circle cross-section of the vacuum vessel in the world. The safety and interlock system (SIS) is in charge of the supervision and control of all the EAST components involved in the protection of human and tokamak from potential accidents. A prototype for upgrading EAST SIS has been designed. This paper presents EAST machine and human protection mechanism and the architecture of the upgrading safety and interlock system.
	Poster MOMPR009 [1.678 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOMPR009
About •	paper received ※ 30 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020
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MOPHA156	The Linux Device Driver Framework for High-Throughput Lossless Data Streaming Applications	Linux, software, interface, FPGA	602
	K. Vodopivec, J.E. Breeding ORNL, Oak Ridge, Tennessee, USA J.W. Sinclair ORNL RAD, Oak Ridge, Tennessee, USA
	Funding: This work was supported by the U.S. Department of Energy under contract DE-AC0500OR22725. Many applications in experimental physics facilities require custom hardware solutions to control process parameters or to acquire data at high rates with high integrity. These hardware solutions typically require custom software implementations. The neutron scattering detectors at the Spallation Neutron Source at ORNL* implement custom protocols over optical fiber connected to a PCI express based read-out board. A dedicated kernel device driver provides an interface to the software application and must be able to sustain data bursts from a pulsed source while acquiring data for long periods of time. The same optical channel is also used as low-latency communication link to detector electronics for configuration and real time fault detection. This paper presents a Linux device driver design, implementation challenges in a low-latency high-throughput setup, real use case benchmarks and importance of clean application programming interface for seamless integration in control systems. This software implementation was developed as a generic framework and has been extended beyond neutron data acquisition. It is suitable to diverse applications where it allows for rapid FPGA development. *Oak Ridge National Laboratory
	Poster MOPHA156 [4.163 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA156
About •	paper received ※ 02 October 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020
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TUBPL02	Enabling Open Science for Photon and Neutron Sources	simulation, photon, software, experiment	694
	A. Götz, J. Bodera Sempere, A. Campbell, A. De Maria Antolinos, R.D. Dimper, J. Kieffer, V.A. Solé, T. Vincet ESRF, Grenoble, France M. Bertelsen, T. Holm Rod, T.S. Richter, J.W. Taylor ESS, Copenhagen, Denmark N. Carboni CERIC-ERIC, Trieste, Italy S. Caunt, J. Hall, J.F. Perrin ILL, Grenoble, France J.C. E, H. Fangohr, C. Fortmann-Grote, T.A. Kluyver, R. Rosca EuXFEL, Schenefeld, Germany F.M. Gliksohn ELI-DC, Brussels, Belgium R. Pugliese Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy L. Schrettner ELI-ALPS, Szeged, Hungary
	Funding: This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 823852 Photon and Neutron sources are producing more and more petabytes of scientific data each year. At the same time scientific publishing is evolving to make scientific data part of publications. The Photon and Neutron Open Science Cloud (PaNOSC) project is a EU financed project to provide scientific data management for enabling Open Science. Data will be managed according to the FAIR principles. This means data will be curated and made available under an Open Data policy, findable, interoperable and reusable. This paper will describe how the European photon and neutron sources on the ESFRI* roadmap envision PaNOSC as part of the European Open Science Cloud**. The paper will address the issues of data policy, metadata, data curation, long term archiving and data sharing in the context of the latest developments in these areas. https://panosc.eu https://www.esfri.eu/ https://ec.europa.eu/research/openscience/index.cfm?pg=open-science-cloud
	Slides TUBPL02 [14.942 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-TUBPL02
About •	paper received ※ 30 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020
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TUBPL04	Public Cloud-based Remote Access Infrastructure for Neutron Scattering Experiments at MLF, J-PARC	experiment, operation, software, monitoring	707
	K. Moriyama CROSS, Ibaraki, Japan T. Nakatani JAEA/J-PARC, Tokai-mura, Japan
	An infrastructure for remote access supporting research workflow is essential for neutron scattering user facilities such as J-PARC MLF. Because the experimental period spans day and night, service monitoring the measurement status from outside the facility is required. Additionally, convenient way to bring a large amount of data back to user’s home institution and to analyze it after experiments is required. To meet these requirements, we are developing a remote access infrastructure as a front-end for facility users based on public clouds. Recently, public clouds have been rapidly developed, so that development and operation schemes of computer systems have changed considerably. Various architectures provided by public clouds enable advanced systems to develop quickly and effectively. Our cloud-based infrastructure comprises services for experimental monitoring, data download and data analysis, using architectures, such as object storage, event-driven server-less computing, and virtual desktop infrastructure (VDI). Facility users can access this infrastructure using a web browser and a VDI client. This contribution reports the current status of the remote access infrastructure.
	Slides TUBPL04 [6.858 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-TUBPL04
About •	paper received ※ 30 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020
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TUCPR04	Improving User Experience in Complex Systems	interface, experiment, software, status	812
	M.J. Clarke, G.C. Murphy, R. Nørager, T.S. Richter ESS, Copenhagen, Denmark
	Don Norman and Jakob Nielsen* define User Experience (UX) as "encompassing all aspects of the end-user’s interaction with the company, its services, and its products". The question is, however, is it possible to provide a significantly better UX in an inherently complex environment, such as at a neutron beamline instrument? With this in mind, we decided to ask the professionals at Design Psykology** to see what might be achievable for user-facing scientific software at the ESS. During a series of short workshops, we looked at general UX principles and how they could be applied to two of our user-facing software projects. We learned a number of useful practices and ideas, such as: why UX is more than just the graphical user interface; the value of creating user personas and mapping their workflow; How to design for the user’s "System 1". A bad UX may make the user feel like they are fighting against the system rather than working with it. A good UX, however, will unobtrusively help them do what they need to do without fuss or bother. If done well, UX is not a zero-sum game: improvements can be made so novices and experts alike can work more efficiently. https://www.nngroup.com/articles/definition-user-experience/ *https://www.designpsykologi.dk/
	Slides TUCPR04 [9.925 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-TUCPR04
About •	paper received ※ 30 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020
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TUCPR05	UX Focused Development Work During Recent ORNL EPICS-Based Instrument Control System Upgrade Projects	controls, experiment, scattering, detector	818
	X. Yao, R.D. Gregory, G.S. Guyotte, S.M. Hartman, K.-U. Kasemir, C.A. Lionberger, M.R. Pearson ORNL, Oak Ridge, Tennessee, USA
	Funding: Oak Ridge National Laboratory is managed by UT-Battelle LLC for the US Department of Energy The importance of usability and easy-to-use user interfaces (UI) have been recognized across many domains. However, the user-friendliness of scientific experiment control systems often lags behind industry standards in the flourishing user experience (UX) field. Scientific control systems can certainly benefit from these new UX research methods and approaches. Recent instrument control system upgrade projects at the SNS and HFIR facilities at Oak Ridge National Laboratory demonstrate the effectiveness of UX focused development work, and further reveal the need for more utilization of such techniques coming from the UX field. The ongoing control system upgrades are targeting the key facility-level priority of higher scientific productivity, and UX is one of the important tools to help us achieve this priority. We will highlight research methods and practices, introduce our findings and deliverables, and share challenges and lessons learned in applying UX methods to scientific control systems.
	Slides TUCPR05 [7.242 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-TUCPR05
About •	paper received ※ 03 October 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020
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WEPHA035	Firmware Layer Implementation of the nBLM and icBLM Systems for ESS Project	linac, FPGA, interface, simulation	1157
	W. Cichalewski, G.W. Jabłoński, W. Jałmużna, R. Kiełbik TUL-DMCS, Łódź, Poland F.S. Alves, H. Carling, I. Dolenc Kittelmann, S. Farina, K.E. Rosengren, T.J. Shea ESS, Lund, Sweden
	Funding: Work supported by Polish Ministry of Science and Higher Education, decision number DIR/WK/2018/02 Both ionization chamber Beam Loss Monitor (icBLM) and neutron Beam Loss Monitor (nBLM) systems are fundamental components of European Spallation Source (ESS) accelerator safety systems. Main responsibility of this system is instantaneous and reliable detection of accelerated proton beam loss that exceeds predefined safety threshold. Nowadays DMCS (as an in-kind partner to ESS) is responsible for beam loss detection algorithm implementation, evaluation and deployment in firmware. As a hardware platform for mentioned systems MTCA.4 based form factor electronic components have been chosen (delivered by IOXOS). This contribution focuses on both cases (nBLM and icBLM) firmware realisation presentation. Proposed and developed firmware structure and functional blocks that fulfills specified by ESS requirements are described. Additionally, some aspects of the system FPGA circuit resource usage and achieved performance is being discussed.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA035
About •	paper received ※ 01 October 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020
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WEPHA080	A Communication Protocol for Motion Control Applications at the JCNS Neutron Instruments	controls, PLC, interface, Ethernet	1276
	H. Kleines, F. Suxdorf FZJ, Jülich, Germany
	Main focus of slow control in neutron scattering is motion control for the movement of around 25 mechanical axes in a typical neutron instrument. The implementation of motion control functions in the JCNS neutron instruments at the FRM II research reactor in Garching, Germany, is based on Siemens S7 PLCs. A communication protocol called PMcomm which is optimized for motion control applications in neutron instruments has been developed at JCNS. PMcomm (PROFI motion communication) is based on PROFINET or PROFIBUS as the underlying transport protocol in order to facilitate the easy integration into the PLC world. It relies on the producer/consumer communication mechanism of PROFINET and PROFIBUS for the efficient direct access to often-used data like positions or status information. Coordinated movement of groups of axes is facilitated by a generic controller/axes model that abstracts from the specifics of the underlying motion control hardware. Simplicity was a major design goal of the protocol in order to allow an efficient and easy implementation on PLCs.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA080
About •	paper received ※ 08 October 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020
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WEPHA091	Generalising the High-Level Geometry System for Reflectometry Instruments at ISIS	controls, experiment, EPICS, target	1300
	T. Löhnert, A.J. Long STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom J.R. Holt Tessella, Abingdon, United Kingdom
	At the ISIS Pulsed Neutron and Muon Source, we in the Experiment Control Group are currently upgrading from the LabVIEW-based SECI instrument control system to the new IBEX control system* based on EPICS**. One class of instrument we have yet to migrate to the new system is reflectometers. These instruments require equipment to track the path of the neutron beam to high levels of precision over various experimental configurations, which results in a unique set of control system requirements. Since August 2018, we have been implementing a higher level geometry layer responsible for linking beamline components together and preserving experimental parameters such as the incident beam angle across different configurations. This layer is written as a Python server running on the instrument, which interfaces to the Channel Access protocol used by EPICS. This talk will provide an overview of the system architecture, specifically how it supports the design goal of making the system easy to extend and reconfigure while preserving the functionality of the existing solution, as well as an outlook on future plans for a more sophisticated motion control system. http://www.ni.com/en-gb/shop/labview.html https://iopscience.iop.org/article/10.1088/1742-6596/1021/1/012019/pdf *https://epics-controls.org/
	Poster WEPHA091 [0.550 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA091
About •	paper received ※ 30 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020
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THBPP03	Deep Learning Methods on Neutron Scattering Data	scattering, experiment, network, detector	1580
	P. Mutti, F. Cecillon, Y. Le Goc, G. Song ILL, Grenoble, France
	Recently, by using deep learning methods, computers are able to surpass or come close to matching human performance on image analysis and pattern recognition. This advanced method could also help interpreting data from neutron scattering experiments. Those data contain rich scientific information about structure and dynamics of materials under investigation, and deep learning could help researchers better understand the link between experimental data and materials properties. We applied deep learning techniques to scientific neutron scattering data. This is a complex problem due to the multi-parameter space we have to deal with. We have used a convolutional neural network-based model to evaluate the quality of experimental neutron scattering images, which can be influenced by instrument configuration, sample and sample environment parameters. Sample structure can be deduced during data collection that can be therefore optimized. The neural network model can predict the experimental parameters to properly setup the instrument and derive the best measurement strategy. This results in a higher quality of data obtained in a shorter time, facilitating data analysis and interpretation.
	Slides THBPP03 [11.877 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-THBPP03
About •	paper received ※ 04 October 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020
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THCPR02	Target Control and Protection Systems Lessons from SNS Operations	target, controls, PLC, instrumentation	1623
	D.L. Humphreys ORNL RAD, Oak Ridge, Tennessee, USA
	Funding: Work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract number DE-AC05-00OR22725. The Spallation Neutron Source (SNS) at Oak Ridge National Laboratory has been in operations since 2006 and proposes a project to build a Second Target Station (STS) to effectively double potential scientific output. The SNS target controls operate in a harsh environment which includes high radiation, exposure to gaseous radionuclides, and activated liquid mercury and mercury vapor. These conditions necessitate protective interlocks and credited controls for protection functions to ensure proper response to off-normal conditions. In order to inform the design of target controls for the STS, we have examined lessons learned during SNS operations regarding the design and implementation of the control and protection systems for the first target station (FTS). This paper will examine various aspects of the performance of the target control and protection systems including reliability, maintainability and sustainability given the challenging environment created by 1.4 MW operations. Specific topics include distributed control of various target subsystems, response to loss of power, selection of nuclear grade instrumentation, and applying these lessons to the design for the STS project.
	Slides THCPR02 [7.233 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-THCPR02
About •	paper received ※ 01 October 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020
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FRAPP02	Preliminary Engineering Design of the Central Instrumentation and Control Systems for the IFMIF-DONES Plant	controls, network, radiation, operation	1655
	M. Cappelli ENEA C.R. Frascati, Frascati (Roma), Italy A. Bagnasco Ansaldo Nucleare, Genova, Italy A. Ibarra CIEMAT, Madrid, Spain
	Funding: This work is within the framework of the EUROfusion Consortium and funded by the EU’s H₂020 Program (GA 633053). The views and opinions expressed herein do not necessarily reflect those of the EC. IFMIF-DONES is the International Fusion Materials Irradiation Facility-DEMO Oriented NEutron Source, an accelerator-based neutron source where a high-energy deuterons beam is focused on a fast flowing liquid lithium jet to produce high-energy neutrons via stripping reactions with intensity and irradiation volume sufficient to generate material irradiation test data for design, licensing, construction and safe operation of the DEMO fusion reactor. This work presents the design of Central Instrumentation and Control Systems for the IFMIF-DONES plant and describes its most recent development. After a general overview of the current status of the design, the differences with respect to the corresponding system developed during the previous phases of the project will be highlighted. The paper describes the overall architecture (in terms of definitions, functions and requirements) and provides details about the identification of subsystems and equipment. A particular attention will be given to the I&C Networks connecting infrastructures.
	Slides FRAPP02 [4.985 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-FRAPP02
About •	paper received ※ 02 October 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020
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Paper

Title

Other Keywords

Page

MOAPP03

Control System Plans for SNS Upgrade Projects

controls, target, EPICS, experiment

12

S.M. Hartman, K.S. White
ORNL, Oak Ridge, Tennessee, USA

Funding: This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract number DE-AC05-00OR22725.
The Spallation Neutron Source at Oak Ridge National Laboratory is planning two major upgrades to the facility. The Proton Power Upgrade project, currently underway, will double the machine power from 1.4 to 2.8 MW by adding seven additional cryomodules and associated equipment. The Second Target Station project, currently in conceptual design, will construct a new target station effectively doubling the potential scientific output of the facility. This paper discusses the control system upgrades required to integrate these projects into the existing EPICS based control systems used for the machine and neutron instrument beamlines. While much of the control system can be replicated from existing solutions, some systems require new hardware and software. Operating two target stations simultaneously will require a new run permit system to safely manage beam delivery.

Slides MOAPP03 [32.100 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOAPP03

About •

paper received ※ 02 October 2019 paper accepted ※ 08 October 2019 issue date ※ 30 August 2020

Export •

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MOCPL01

IBEX: Beamline Control at ISIS Pulsed Neutron and Muon Source

controls, EPICS, experiment, software

59

K.V.L. Baker, F.A. Akeroyd, D.P. Keymer, T. Löhnert, C. Moreton-Smith, D.E. Oram
STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom
J.R. Holt, T.A. Willemsen, K. Woods
Tessella, Abingdon, United Kingdom

For most of its over 30 years of operation the ISIS Neutron and Muon Source has been using bespoke control software on its beamlines. In the last few years, we have been converting the beamline control software to IBEX*, which is based on the Open Source EPICS toolkit**. More than half the instruments at ISIS are now converted. IBEX must be robust and flexible enough to allow instrument scientists to perform the many experiments they can conceive of. Using EPICS as a base, we have built Python services and scripting support as well as developing an Eclipse/RCP GUI based on Control System Studio***. We use an Agile based development methodology with heavy use of automated testing and device emulators. As we move to the final implementation stage, we are handling new instrument challenges (such as reflectometry) and providing new functionality (live neutron data view, script generator and server). This presentation will cover an overview of the IBEX architecture, our development practices, what is currently in progress, and our future plans.
*J. Phys. Conf. Ser. 1021 (2018) 012019
**https://epics-controls.org/
***http://controlsystemstudio.org/

Slides MOCPL01 [5.325 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOCPL01

About •

paper received ※ 27 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020

Export •

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

MOMPL008

New Neutron Sensitive Beam Loss Monitor (nBLM)

detector, controls, EPICS, PLC

137

Y. Mariette, Q. Bertrand, F. Gougnaud, T.J. Joannem, V. Nadot, T. Papaevangelou, L. Segui
CEA-IRFU, Gif-sur-Yvette, France
F.S. Alves, I. Dolenc Kittelmann
ESS, Lund, Sweden
W. Cichalewski, G.W. Jabłoński, W. Jałmużna, R. Kiełbik
TUL-DMCS, Łódź, Poland

The beam loss detection is of the utmost importance for accelerator safety. At CEA, we are closely collaborating with ESS and DMCS on development of ESS nBLM. The system is based on Micromegas* gaseous detector sensitives to fast neutrons produced when beam particles hit the accelerator materials. This detector has powerful features: reliable neutron detection and fast time response. The nBLM control system provides slow monitoring, fast security based on neutron counting and post mortem data. It is fully handled by EPICS, which drives 3 different subsystems: a Siemens PLC regulates the gas line, a CAEN crate controls low and high voltages, and a MTCA system based on IOxOS boards is in charge of the fast data processing for 16 detectors. The detector signal is digitized by the 250 Ms/s ADC, which is further processed by the firmware developed by DMCS and finally retrieved and sent to EPICS network. For other accelerator projects, we are designing nBLM system close to ESS nBLM one. In order to be able to sustain the full control system, we are developing the firmware and the driver. This paper summarizes CEA’s work on the nBLM control system for the ESS and other accelerators.
*Micromegas: http://irfu.cea.fr/en/Phocea/Vie_des_labos/Ast/ast_technique.php?id_ast=2307

Poster MOMPL008 [2.475 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOMPL008

About •

paper received ※ 26 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020

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

MOMPR009

Prototype Design for Upgrading East Safety and Interlock System

controls, plasma, interface, status

179

Z. Zhang, Z. Ji, Y. Wang, B. Xiao
ASIPP, Hefei, People’s Republic of China
F. Xia
Southwestern Institute of Physics, Chengdu, Sichuan, People’s Republic of China

Funding: This work is supported by the National Key R&D Program of China under Grant No.2017YFE0300504, 2018YFE0302104.
The national project of experimental advanced superconducting tokamak (EAST) is an important part of the fusion development stratagem of China, which is the first fully superconducting tokamak with a non-circle cross-section of the vacuum vessel in the world. The safety and interlock system (SIS) is in charge of the supervision and control of all the EAST components involved in the protection of human and tokamak from potential accidents. A prototype for upgrading EAST SIS has been designed. This paper presents EAST machine and human protection mechanism and the architecture of the upgrading safety and interlock system.

Poster MOMPR009 [1.678 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOMPR009

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paper received ※ 30 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020

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MOPHA156

The Linux Device Driver Framework for High-Throughput Lossless Data Streaming Applications

Linux, software, interface, FPGA

602

K. Vodopivec, J.E. Breeding
ORNL, Oak Ridge, Tennessee, USA
J.W. Sinclair
ORNL RAD, Oak Ridge, Tennessee, USA

Funding: This work was supported by the U.S. Department of Energy under contract DE-AC0500OR22725.
Many applications in experimental physics facilities require custom hardware solutions to control process parameters or to acquire data at high rates with high integrity. These hardware solutions typically require custom software implementations. The neutron scattering detectors at the Spallation Neutron Source at ORNL* implement custom protocols over optical fiber connected to a PCI express based read-out board. A dedicated kernel device driver provides an interface to the software application and must be able to sustain data bursts from a pulsed source while acquiring data for long periods of time. The same optical channel is also used as low-latency communication link to detector electronics for configuration and real time fault detection. This paper presents a Linux device driver design, implementation challenges in a low-latency high-throughput setup, real use case benchmarks and importance of clean application programming interface for seamless integration in control systems. This software implementation was developed as a generic framework and has been extended beyond neutron data acquisition. It is suitable to diverse applications where it allows for rapid FPGA development.
*Oak Ridge National Laboratory

Poster MOPHA156 [4.163 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA156

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paper received ※ 02 October 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020

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TUBPL02

Enabling Open Science for Photon and Neutron Sources

simulation, photon, software, experiment

694

A. Götz, J. Bodera Sempere, A. Campbell, A. De Maria Antolinos, R.D. Dimper, J. Kieffer, V.A. Solé, T. Vincet
ESRF, Grenoble, France
M. Bertelsen, T. Holm Rod, T.S. Richter, J.W. Taylor
ESS, Copenhagen, Denmark
N. Carboni
CERIC-ERIC, Trieste, Italy
S. Caunt, J. Hall, J.F. Perrin
ILL, Grenoble, France
J.C. E, H. Fangohr, C. Fortmann-Grote, T.A. Kluyver, R. Rosca
EuXFEL, Schenefeld, Germany
F.M. Gliksohn
ELI-DC, Brussels, Belgium
R. Pugliese
Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy
L. Schrettner
ELI-ALPS, Szeged, Hungary

Funding: This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 823852
Photon and Neutron sources are producing more and more petabytes of scientific data each year. At the same time scientific publishing is evolving to make scientific data part of publications. The Photon and Neutron Open Science Cloud (PaNOSC*) project is a EU financed project to provide scientific data management for enabling Open Science. Data will be managed according to the FAIR principles. This means data will be curated and made available under an Open Data policy, findable, interoperable and reusable. This paper will describe how the European photon and neutron sources on the ESFRI** roadmap envision PaNOSC as part of the European Open Science Cloud***. The paper will address the issues of data policy, metadata, data curation, long term archiving and data sharing in the context of the latest developments in these areas.
*https://panosc.eu
**https://www.esfri.eu/
**https://ec.europa.eu/research/openscience/index.cfm?pg=open-science-cloud

Slides TUBPL02 [14.942 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-TUBPL02

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paper received ※ 30 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020

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TUBPL04

Public Cloud-based Remote Access Infrastructure for Neutron Scattering Experiments at MLF, J-PARC

experiment, operation, software, monitoring

707

K. Moriyama
CROSS, Ibaraki, Japan
T. Nakatani
JAEA/J-PARC, Tokai-mura, Japan

An infrastructure for remote access supporting research workflow is essential for neutron scattering user facilities such as J-PARC MLF. Because the experimental period spans day and night, service monitoring the measurement status from outside the facility is required. Additionally, convenient way to bring a large amount of data back to user’s home institution and to analyze it after experiments is required. To meet these requirements, we are developing a remote access infrastructure as a front-end for facility users based on public clouds. Recently, public clouds have been rapidly developed, so that development and operation schemes of computer systems have changed considerably. Various architectures provided by public clouds enable advanced systems to develop quickly and effectively. Our cloud-based infrastructure comprises services for experimental monitoring, data download and data analysis, using architectures, such as object storage, event-driven server-less computing, and virtual desktop infrastructure (VDI). Facility users can access this infrastructure using a web browser and a VDI client. This contribution reports the current status of the remote access infrastructure.

Slides TUBPL04 [6.858 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-TUBPL04

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paper received ※ 30 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020

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TUCPR04

Improving User Experience in Complex Systems

interface, experiment, software, status

812

M.J. Clarke, G.C. Murphy, R. Nørager, T.S. Richter
ESS, Copenhagen, Denmark

Don Norman and Jakob Nielsen* define User Experience (UX) as "encompassing all aspects of the end-user’s interaction with the company, its services, and its products". The question is, however, is it possible to provide a significantly better UX in an inherently complex environment, such as at a neutron beamline instrument? With this in mind, we decided to ask the professionals at Design Psykology** to see what might be achievable for user-facing scientific software at the ESS. During a series of short workshops, we looked at general UX principles and how they could be applied to two of our user-facing software projects. We learned a number of useful practices and ideas, such as: why UX is more than just the graphical user interface; the value of creating user personas and mapping their workflow; How to design for the user’s "System 1". A bad UX may make the user feel like they are fighting against the system rather than working with it. A good UX, however, will unobtrusively help them do what they need to do without fuss or bother. If done well, UX is not a zero-sum game: improvements can be made so novices and experts alike can work more efficiently.
*https://www.nngroup.com/articles/definition-user-experience/
**https://www.designpsykologi.dk/

Slides TUCPR04 [9.925 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-TUCPR04

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paper received ※ 30 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020

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TUCPR05

UX Focused Development Work During Recent ORNL EPICS-Based Instrument Control System Upgrade Projects

controls, experiment, scattering, detector

818

X. Yao, R.D. Gregory, G.S. Guyotte, S.M. Hartman, K.-U. Kasemir, C.A. Lionberger, M.R. Pearson
ORNL, Oak Ridge, Tennessee, USA

Funding: Oak Ridge National Laboratory is managed by UT-Battelle LLC for the US Department of Energy
The importance of usability and easy-to-use user interfaces (UI) have been recognized across many domains. However, the user-friendliness of scientific experiment control systems often lags behind industry standards in the flourishing user experience (UX) field. Scientific control systems can certainly benefit from these new UX research methods and approaches. Recent instrument control system upgrade projects at the SNS and HFIR facilities at Oak Ridge National Laboratory demonstrate the effectiveness of UX focused development work, and further reveal the need for more utilization of such techniques coming from the UX field. The ongoing control system upgrades are targeting the key facility-level priority of higher scientific productivity, and UX is one of the important tools to help us achieve this priority. We will highlight research methods and practices, introduce our findings and deliverables, and share challenges and lessons learned in applying UX methods to scientific control systems.

Slides TUCPR05 [7.242 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-TUCPR05

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paper received ※ 03 October 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020

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WEPHA035

Firmware Layer Implementation of the nBLM and icBLM Systems for ESS Project

linac, FPGA, interface, simulation

1157

W. Cichalewski, G.W. Jabłoński, W. Jałmużna, R. Kiełbik
TUL-DMCS, Łódź, Poland
F.S. Alves, H. Carling, I. Dolenc Kittelmann, S. Farina, K.E. Rosengren, T.J. Shea
ESS, Lund, Sweden

Funding: Work supported by Polish Ministry of Science and Higher Education, decision number DIR/WK/2018/02
Both ionization chamber Beam Loss Monitor (icBLM) and neutron Beam Loss Monitor (nBLM) systems are fundamental components of European Spallation Source (ESS) accelerator safety systems. Main responsibility of this system is instantaneous and reliable detection of accelerated proton beam loss that exceeds predefined safety threshold. Nowadays DMCS (as an in-kind partner to ESS) is responsible for beam loss detection algorithm implementation, evaluation and deployment in firmware. As a hardware platform for mentioned systems MTCA.4 based form factor electronic components have been chosen (delivered by IOXOS). This contribution focuses on both cases (nBLM and icBLM) firmware realisation presentation. Proposed and developed firmware structure and functional blocks that fulfills specified by ESS requirements are described. Additionally, some aspects of the system FPGA circuit resource usage and achieved performance is being discussed.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA035

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paper received ※ 01 October 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020

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WEPHA080

A Communication Protocol for Motion Control Applications at the JCNS Neutron Instruments

controls, PLC, interface, Ethernet

1276

H. Kleines, F. Suxdorf
FZJ, Jülich, Germany

Main focus of slow control in neutron scattering is motion control for the movement of around 25 mechanical axes in a typical neutron instrument. The implementation of motion control functions in the JCNS neutron instruments at the FRM II research reactor in Garching, Germany, is based on Siemens S7 PLCs. A communication protocol called PMcomm which is optimized for motion control applications in neutron instruments has been developed at JCNS. PMcomm (PROFI motion communication) is based on PROFINET or PROFIBUS as the underlying transport protocol in order to facilitate the easy integration into the PLC world. It relies on the producer/consumer communication mechanism of PROFINET and PROFIBUS for the efficient direct access to often-used data like positions or status information. Coordinated movement of groups of axes is facilitated by a generic controller/axes model that abstracts from the specifics of the underlying motion control hardware. Simplicity was a major design goal of the protocol in order to allow an efficient and easy implementation on PLCs.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA080

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paper received ※ 08 October 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020

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WEPHA091

Generalising the High-Level Geometry System for Reflectometry Instruments at ISIS

controls, experiment, EPICS, target

1300

T. Löhnert, A.J. Long
STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom
J.R. Holt
Tessella, Abingdon, United Kingdom

At the ISIS Pulsed Neutron and Muon Source, we in the Experiment Control Group are currently upgrading from the LabVIEW*-based SECI instrument control system to the new IBEX control system** based on EPICS***. One class of instrument we have yet to migrate to the new system is reflectometers. These instruments require equipment to track the path of the neutron beam to high levels of precision over various experimental configurations, which results in a unique set of control system requirements. Since August 2018, we have been implementing a higher level geometry layer responsible for linking beamline components together and preserving experimental parameters such as the incident beam angle across different configurations. This layer is written as a Python server running on the instrument, which interfaces to the Channel Access protocol used by EPICS. This talk will provide an overview of the system architecture, specifically how it supports the design goal of making the system easy to extend and reconfigure while preserving the functionality of the existing solution, as well as an outlook on future plans for a more sophisticated motion control system.
*http://www.ni.com/en-gb/shop/labview.html
**https://iopscience.iop.org/article/10.1088/1742-6596/1021/1/012019/pdf
***https://epics-controls.org/

Poster WEPHA091 [0.550 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA091

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paper received ※ 30 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020

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THBPP03

Deep Learning Methods on Neutron Scattering Data

scattering, experiment, network, detector

1580

P. Mutti, F. Cecillon, Y. Le Goc, G. Song
ILL, Grenoble, France

Recently, by using deep learning methods, computers are able to surpass or come close to matching human performance on image analysis and pattern recognition. This advanced method could also help interpreting data from neutron scattering experiments. Those data contain rich scientific information about structure and dynamics of materials under investigation, and deep learning could help researchers better understand the link between experimental data and materials properties. We applied deep learning techniques to scientific neutron scattering data. This is a complex problem due to the multi-parameter space we have to deal with. We have used a convolutional neural network-based model to evaluate the quality of experimental neutron scattering images, which can be influenced by instrument configuration, sample and sample environment parameters. Sample structure can be deduced during data collection that can be therefore optimized. The neural network model can predict the experimental parameters to properly setup the instrument and derive the best measurement strategy. This results in a higher quality of data obtained in a shorter time, facilitating data analysis and interpretation.

Slides THBPP03 [11.877 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-THBPP03

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paper received ※ 04 October 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020

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THCPR02

Target Control and Protection Systems Lessons from SNS Operations

target, controls, PLC, instrumentation

1623

D.L. Humphreys
ORNL RAD, Oak Ridge, Tennessee, USA

Funding: Work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract number DE-AC05-00OR22725.
The Spallation Neutron Source (SNS) at Oak Ridge National Laboratory has been in operations since 2006 and proposes a project to build a Second Target Station (STS) to effectively double potential scientific output. The SNS target controls operate in a harsh environment which includes high radiation, exposure to gaseous radionuclides, and activated liquid mercury and mercury vapor. These conditions necessitate protective interlocks and credited controls for protection functions to ensure proper response to off-normal conditions. In order to inform the design of target controls for the STS, we have examined lessons learned during SNS operations regarding the design and implementation of the control and protection systems for the first target station (FTS). This paper will examine various aspects of the performance of the target control and protection systems including reliability, maintainability and sustainability given the challenging environment created by 1.4 MW operations. Specific topics include distributed control of various target subsystems, response to loss of power, selection of nuclear grade instrumentation, and applying these lessons to the design for the STS project.

Slides THCPR02 [7.233 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-THCPR02

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paper received ※ 01 October 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020

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FRAPP02

Preliminary Engineering Design of the Central Instrumentation and Control Systems for the IFMIF-DONES Plant

controls, network, radiation, operation

1655

M. Cappelli
ENEA C.R. Frascati, Frascati (Roma), Italy
A. Bagnasco
Ansaldo Nucleare, Genova, Italy
A. Ibarra
CIEMAT, Madrid, Spain

Funding: This work is within the framework of the EUROfusion Consortium and funded by the EU’s H₂020 Program (GA 633053). The views and opinions expressed herein do not necessarily reflect those of the EC.
IFMIF-DONES is the International Fusion Materials Irradiation Facility-DEMO Oriented NEutron Source, an accelerator-based neutron source where a high-energy deuterons beam is focused on a fast flowing liquid lithium jet to produce high-energy neutrons via stripping reactions with intensity and irradiation volume sufficient to generate material irradiation test data for design, licensing, construction and safe operation of the DEMO fusion reactor. This work presents the design of Central Instrumentation and Control Systems for the IFMIF-DONES plant and describes its most recent development. After a general overview of the current status of the design, the differences with respect to the corresponding system developed during the previous phases of the project will be highlighted. The paper describes the overall architecture (in terms of definitions, functions and requirements) and provides details about the identification of subsystems and equipment. A particular attention will be given to the I&C Networks connecting infrastructures.

Slides FRAPP02 [4.985 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-FRAPP02

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paper received ※ 02 October 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020

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