ICALEPCS2015 - List of Keywords (neutron)

Paper	Title	Other Keywords	Page
MOPGF063	The New TANGO-based Control and Data Acquisition of the Neutron Instrument DNS at FRM II	TANGO, controls, software, PLC	236
	H. Kleines, M. Bednarek, K. Bussmann, M. Drochner, L. Fleischhauer-Fuss, S. Janaschke, S. Keuler, K.-H. Mertens, S. Su, F. Suxdorf, S. van Waasen FZJ, Jülich, Germany
	Forschungszentrum Jülich has been operating the neutron Instrument DNS at the neutron source FRM II for about 10 years. DNS is a time of flight neutron spectrometer with polarization analysis that experienced a major upgrade in 2014 and 2015. During the upgrade DNS was equipped with new electronics and a new control and data acquisition system, including a transition from the existing TACO system to its successor TANGO. On the client side the NICOS software developed at FRM II is used for the implementation of measurement operations and user interface. The design of the new control and data acquisition system is presented and the lessons learned by the introduction of TANGO are reported.
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TUB3O03	The Modular Control Concept of the Neutron Scattering Experiments at the European Spallation Source ESS	controls, interface, timing, EPICS	529
	T. Gahl, R.J. Hall-Wilton, O. Kirstein, T. Korhonen, T.S. Richter, A. Sandström, I. Sutton, J.W. Taylor ESS, Lund, Sweden
	The European Spallation Source (ESS) in Lund, Sweden has just entered into neutron beam line construction starting detailed design in 2015. As a collaboration of 17 European countries the majority of hardware devices will be provided in-kind. This presents numerous technical and organizational challenges for the construction and the integration of the neutron instrumentation into the facility wide infrastructure; notably the EPICS control network and the facilities absolute timing system. In this contribution we present a strategy for the modularity of the instruments hardware with well-defined standardized functionality and a minimized number of control & data interfaces. Key point of the strategy is the time stamping of all readings from the instruments control electronics extending the event mode data acquisition from detected neutron events to all metadata. This gives the control software the flexibility necessary to adapt the functionality of the instruments to the demands of each single experimental run. Examples of the advantages of that approach in classical motion control as well as in complex robotics systems and matching hardware requirements necessary, is discussed.
	Slides TUB3O03 [2.115 MB]
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TUC3O02	Design, Implementation and Setup of the Fast Protection System for CSNS	proton, rfq, ion, timing	543
	D.P. Jin, Y.L. Zhang, P. Zhu IHEP, Beijing, People's Republic of China
	Design, implementation and setup of a FPGA and RocketIO based FPS(Fast Protection System) for CSNS(China Spallation Neutron Source) is introduced. This system is a compact design with high speed serial transmission techniques. RocketIOs (or MGTs) and optical transceivers are used to transmit the interlock signals, with each link to carry 16 signals. Ground loop problems are avoided since the use of fibers. Dedicated firmware is developed for the auto-working of the serial links when both fibers are plugged in under power-on state. A real-time online heart-beat function is also implemented for each interlock signal to make sure the overall safety of the system. The whole system is under installation and will be put into use soon part by part according to the progress of the civil construction and equipment installation.
	Slides TUC3O02 [3.493 MB]
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TUC3O03	Development and Realisation of the ESS Machine Protection Concept	proton, operation, target, monitoring	545
	A. Nordt, R. Andersson, T. Korhonen, A. Monera Martinez, M. Zaera-Sanz ESS, Lund, Sweden A. Apollonio, R. Schmidt CERN, Geneva, Switzerland C. Hilbes ZHAW, Winterthur, Switzerland
	ESS is facing extremely high beam availability requirements and is largely relying on custom made, very specialised, and expensive equipment for its operation. The proton beam power with an average of 5MW per pulse will be unprecedented and its uncontrolled release can lead to serious damage of the delicate equipment, causing long shutdown periods, inducing high financial losses and, as a main point, interfering drastically with international scientific research programs relying on ESS operation. Implementing a fit-for-purpose machine protection concept is one of the key challenges in order to mitigate these risks. The development and realisation of the measures needed to implement such concept to the correct level in case of a complex facility like the ESS, requires a systematic approach, and will be discussed in this paper.
	Slides TUC3O03 [11.931 MB]
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WEPGF060	A Data Management Infrastructure for Neutron Scattering Experiments in J-PARC/MLF	data-management, database, experiment, operation	834
	K. Moriyama, T. Nakatani JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken, Japan
	The role of data management is one of the greatest contributions in the research workflow for scientific experiments such as neutron scattering. The facility is required to safely and efficiently manage a huge amount of data over the long duration, and provide an effective data access for facility users promoting the creation of scientific results. In order to meet these requirements, we are operating and updating a data management infrastructure in J-PAPC/MLF, which consists of the web-based integrated data management system called the MLF Experimental Database (MLF EXP-DB), the hierarchical raw data repository composed of distributed storages, and the integrated authentication system. The MLF EXP-DB creates experimental data catalogues in which raw data, measurement logs, and other contextual information on sample, experimental proposal, investigator, etc. are interrelated. This system conducts the reposition, archive and on-demand retrieve of raw data in the repository. Facility users are able to access the experimental data via a web portal. This contribution presents the overview of our data management infrastructure, and the recent updated features for high availability, scaling-out, and flexible data retrieval in the MLF EXP-DB.
	Poster WEPGF060 [1.075 MB]
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WEPGF063	Developing HDF5 for the Synchrotron Community	synchrotron, detector, software, operation	845
	N.P. Rees DLS, Oxfordshire, United Kingdom H.R. Billich PSI, Villigen PSI, Switzerland A. Götz ESRF, Grenoble, France Q. Koziol, E. Pourmal The HDF Group, Champaign, Illinois, USA M. Rissi DECTRIS Ltd., Baden, Switzerland E. Wintersberger DESY, Hamburg, Germany
	HDF5 and NeXus (which normally uses HDF5 as its underlying format) have been widely touted as a standard for storing Photon and Neutron data. They offer many advantages to other common formats and are widely used at many facilities. However, it has been found that the existing implementations of these standards have limited the performance of some recent detector systems. This paper describes how the synchrotron light source community has worked closely with The HDF Group to drive changes to the HDF5 software to make it more suitable for their environment. This includes developments managed by a detector manufacturer (Dectris - for direct chunk writes) as well as synchrotrons (DESY, ESRF and Diamond - for pluggable filters, Single Writer/Multiple Reader and Virtual Data Sets).
	Poster WEPGF063 [0.702 MB]
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WEPGF083	Single Neutron Counting Using CCD and CMOS Cameras	detector, electron, simulation, background	889
	P. Mutti, M. Plaz, E. Ruiz-Martinez, P. Van Esch ILL, Grenoble, France M. Crisanti Università degli di Perugia, Perugia, Italy
	Neutron detection traditionally takes place with detectors based upon particle detection technologies like gas or scintillation detections. These detectors have a high dynamic range, and are very performing at low counting rates and fast timing (time of flight) applications. At high counting rates however, continuous imaging detectors such as CCD or CMOS camera's optically linked to scintillators, can have very good performances concerning linearity and spatial resolution but the dynamic range of these systems is limited by noise and gamma background. We explore a technique that allows us to use imaging detectors as counting detectors at lower counting rates, and transits smoothly to continuous imaging at higher rates. Neutron detection involves reactions releasing energies of the order of the MeV, while X-ray detection releases energies of the order of the photon energy, (10 KeV range). This 100-fold higher energy allows the individual neutron detection light signal to be significantly above the noise level, as such allowing for discrimination and individual counting. The theory is next confronted with experimental measurements on CCD and CMOS type commercial cameras.
	Poster WEPGF083 [7.979 MB]
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WEPGF084	New Digitisers for Position Sensitive 3He Proportional Counters	detector, electronics, FPGA, ion	893
	P. Mutti, M. Plaz, E. Ruiz-Martinez, P. Van Esch ILL, Grenoble, France
	3He gas-filled detectors are a classical choice for the detection of thermal and cold neutrons. The incident neutrons are captured by the 3He producing a tritium and an hydrogen which are sharing the 765 keV of energy generated in the reaction. The classical geometry of a charge-division neutron detector consists of a cylindrical volume housing a resistive anode. Electrical signals are extracted at both ends of the tube and the information about the interaction point along the tube can be derived from the ratio of the collected charged at both ends. The classical analog approach for the charge readout consists of a shaping amplifier coupled with a peak sensing ADC. The development of a new digital front-end electronics based on 64 channels, 62.5 Msample/s and 12 bit digitisers, is reported on. Excellent results have been obtained in terms of position resolution and signal to noise ratio when adopting a continuous digital filtering and gaussian shaping.
	Poster WEPGF084 [8.289 MB]
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WEPGF105	EPICS V4 Evaluation for SNS Neutron Data	EPICS, network, detector, data-acquisition	947
	K.-U. Kasemir, G.S. Guyotte, M.R. Pearson ORNL, Oak Ridge, Tennessee, USA
	Funding: This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. Version 4 of the Experimental Physics and Industrial Control System (EPICS) toolkit allows defining application-specific structured data types (pvData) and offers a network protocol for their efficient exchange (pvAccess). We evaluated V4 for the transport of neutron events from the detectors of the Spallation Neutron Source (SNS) to data acquisition and experiment monitoring systems. This includes the comparison of possible data structures, performance tests, and experience using V4 in production on a beam line.
	Poster WEPGF105 [1.281 MB]
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THHA3O03	Managing Neutron Beam Scans at the Canadian Neutron Beam Centre	database, experiment, controls, software	1096
	M.R. Vigder, M.L. Cusick, D. Dean CNL, Ontario, Canada
	The Canadian Neutron Beam Centre (CNBC) of the Canadian Nuclear Laboratories (CNL) operate six beam lines for material research. A single beam line experiment requires scientists to acquire data as a sequence of scans that involves data acquisition at many points, varying sample positions, samples, wavelength, sample environment, etc. The points at which measurements must be taken can number in the thousands with scans or their variations having to be run multiple times. At the CNBC an approach has been developed to allow scientists to specify and manage their scans using a set of processes and tools. Scans are specified using a set of constructors and a scan algebra that allows scans to be combined using a set of scan operators. Using the operators of the algebra, complex scan sequences can be constructed from simpler scans and run unattended for up to a few days. Based on the constructors and the algebra, tools are provided to scientists to build, organize and execute their scans. These tools can take the form of scripting languages, spreadsheets, or databases. This scanning technique is currently in use at CNL, and has been implemented in Python on an EPICS based control system.
	Slides THHA3O03 [0.745 MB]
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THHD3O01	Control Systems for Spallation Target in China Initiative Accelerator Driven System	controls, target, network, Ethernet	1147
	Z. He, W. Cui, Y. Luo, X. Ting, H.S. Xu, L. Yang, X. Zhang, Q. Zhao IMP/CAS, Lanzhou, People's Republic of China
	In this paper, we report the design of the control system for the spallation target in China initiative accelerator driven sub-critical (ADS) system, where a heavy-metal target located vertically at the centre of a sub-critical reactor core is bombarded vertically by the high-energy protons from an accelerator. The main functions of the control system for the target are to monitor and control thermal hydraulic, neutron flux, and accelerator-target interface. The first function is to control the components in the primary and secondary loops, such as pumps, heat exchangers, valves, sensors, etc. For the commissioning measurements of the accelerator, the second function is to monitor the neutrons from the spallation target. The three-layer architecture has been used in the control system. In the middle network layer, in order to increase the network reliability, the redundant Ethernet based on Ethernet ring protection protocol has been considered. In the bottom equipment layer, the equipment controls for the above-mentioned functions have been designed. Finally, because the main objective of the target is to integrate the accelerator and the reactor into one system, the integration of accelerator's control system and the reactor's instrumentation and controls into the target's control system has been mentioned.
	Slides THHD3O01 [0.628 MB]
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FRB3O02	Status of the European Spallation Source Control System	controls, EPICS, operation, software	1177
	T. Korhonen, R. Andersson, F. Bellorini, S.L. Birch, D.P. Brodrick, H. Carling, J. Cereijo García, R.N. Fernandes, L. Fernandez, B. Gallese, S.R. Gysin, E. Laface, N. Levchenko, M. Mansouri Sharifabad, A. Monera Martinez, R. Mudingay, A. Nordt, D. Paulic, D.P. Piso, K. Rathsman, M. Reščič, G. Trahern, M. Zaera-Sanz ESS, Lund, Sweden N. Claesson, U. Rojec, K. Strniša, A.A. Söderqvist Cosylab, Ljubljana, Slovenia
	The European Spallation Source (ESS) is a collaboration of 17 European countries to build the world's most powerful neutron source for research. ESS has entered the construction phase and the plan is to produce first neutrons by 2019 and to complete the construction by 2025. The Integrated Control System Division (ICS) is responsible to provide control systems for the whole facility. The unprecented beam power of 5 MW and the construction of the facility with many components contributed in-kind presents a number of challenges to the control system. Systems have to be specified so that the work can be effectively shared between the contributors and on-site staff. Control system components need to provide a level of performance that can support the operation of the facility, be standardized so that integration to the facility can be done during a short installation period and be maintainable by the in-house staff after the construction has finished. This paper will outline the plans and principles that will be used to construct the control systems. The selected technologies and standards will be presented, as well as the plans for integration.
	Slides FRB3O02 [1.184 MB]
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Paper

Title

Other Keywords

Page

MOPGF063

The New TANGO-based Control and Data Acquisition of the Neutron Instrument DNS at FRM II

TANGO, controls, software, PLC

236

H. Kleines, M. Bednarek, K. Bussmann, M. Drochner, L. Fleischhauer-Fuss, S. Janaschke, S. Keuler, K.-H. Mertens, S. Su, F. Suxdorf, S. van Waasen
FZJ, Jülich, Germany

Forschungszentrum Jülich has been operating the neutron Instrument DNS at the neutron source FRM II for about 10 years. DNS is a time of flight neutron spectrometer with polarization analysis that experienced a major upgrade in 2014 and 2015. During the upgrade DNS was equipped with new electronics and a new control and data acquisition system, including a transition from the existing TACO system to its successor TANGO. On the client side the NICOS software developed at FRM II is used for the implementation of measurement operations and user interface. The design of the new control and data acquisition system is presented and the lessons learned by the introduction of TANGO are reported.

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TUB3O03

The Modular Control Concept of the Neutron Scattering Experiments at the European Spallation Source ESS

controls, interface, timing, EPICS

529

T. Gahl, R.J. Hall-Wilton, O. Kirstein, T. Korhonen, T.S. Richter, A. Sandström, I. Sutton, J.W. Taylor
ESS, Lund, Sweden

The European Spallation Source (ESS) in Lund, Sweden has just entered into neutron beam line construction starting detailed design in 2015. As a collaboration of 17 European countries the majority of hardware devices will be provided in-kind. This presents numerous technical and organizational challenges for the construction and the integration of the neutron instrumentation into the facility wide infrastructure; notably the EPICS control network and the facilities absolute timing system. In this contribution we present a strategy for the modularity of the instruments hardware with well-defined standardized functionality and a minimized number of control & data interfaces. Key point of the strategy is the time stamping of all readings from the instruments control electronics extending the event mode data acquisition from detected neutron events to all metadata. This gives the control software the flexibility necessary to adapt the functionality of the instruments to the demands of each single experimental run. Examples of the advantages of that approach in classical motion control as well as in complex robotics systems and matching hardware requirements necessary, is discussed.

Slides TUB3O03 [2.115 MB]

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TUC3O02

Design, Implementation and Setup of the Fast Protection System for CSNS

proton, rfq, ion, timing

543

D.P. Jin, Y.L. Zhang, P. Zhu
IHEP, Beijing, People's Republic of China

Design, implementation and setup of a FPGA and RocketIO based FPS(Fast Protection System) for CSNS(China Spallation Neutron Source) is introduced. This system is a compact design with high speed serial transmission techniques. RocketIOs (or MGTs) and optical transceivers are used to transmit the interlock signals, with each link to carry 16 signals. Ground loop problems are avoided since the use of fibers. Dedicated firmware is developed for the auto-working of the serial links when both fibers are plugged in under power-on state. A real-time online heart-beat function is also implemented for each interlock signal to make sure the overall safety of the system. The whole system is under installation and will be put into use soon part by part according to the progress of the civil construction and equipment installation.

Slides TUC3O02 [3.493 MB]

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TUC3O03

Development and Realisation of the ESS Machine Protection Concept

proton, operation, target, monitoring

545

A. Nordt, R. Andersson, T. Korhonen, A. Monera Martinez, M. Zaera-Sanz
ESS, Lund, Sweden
A. Apollonio, R. Schmidt
CERN, Geneva, Switzerland
C. Hilbes
ZHAW, Winterthur, Switzerland

ESS is facing extremely high beam availability requirements and is largely relying on custom made, very specialised, and expensive equipment for its operation. The proton beam power with an average of 5MW per pulse will be unprecedented and its uncontrolled release can lead to serious damage of the delicate equipment, causing long shutdown periods, inducing high financial losses and, as a main point, interfering drastically with international scientific research programs relying on ESS operation. Implementing a fit-for-purpose machine protection concept is one of the key challenges in order to mitigate these risks. The development and realisation of the measures needed to implement such concept to the correct level in case of a complex facility like the ESS, requires a systematic approach, and will be discussed in this paper.

Slides TUC3O03 [11.931 MB]

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WEPGF060

A Data Management Infrastructure for Neutron Scattering Experiments in J-PARC/MLF

data-management, database, experiment, operation

834

K. Moriyama, T. Nakatani
JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken, Japan

The role of data management is one of the greatest contributions in the research workflow for scientific experiments such as neutron scattering. The facility is required to safely and efficiently manage a huge amount of data over the long duration, and provide an effective data access for facility users promoting the creation of scientific results. In order to meet these requirements, we are operating and updating a data management infrastructure in J-PAPC/MLF, which consists of the web-based integrated data management system called the MLF Experimental Database (MLF EXP-DB), the hierarchical raw data repository composed of distributed storages, and the integrated authentication system. The MLF EXP-DB creates experimental data catalogues in which raw data, measurement logs, and other contextual information on sample, experimental proposal, investigator, etc. are interrelated. This system conducts the reposition, archive and on-demand retrieve of raw data in the repository. Facility users are able to access the experimental data via a web portal. This contribution presents the overview of our data management infrastructure, and the recent updated features for high availability, scaling-out, and flexible data retrieval in the MLF EXP-DB.

Poster WEPGF060 [1.075 MB]

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WEPGF063

Developing HDF5 for the Synchrotron Community

synchrotron, detector, software, operation

845

N.P. Rees
DLS, Oxfordshire, United Kingdom
H.R. Billich
PSI, Villigen PSI, Switzerland
A. Götz
ESRF, Grenoble, France
Q. Koziol, E. Pourmal
The HDF Group, Champaign, Illinois, USA
M. Rissi
DECTRIS Ltd., Baden, Switzerland
E. Wintersberger
DESY, Hamburg, Germany

HDF5 and NeXus (which normally uses HDF5 as its underlying format) have been widely touted as a standard for storing Photon and Neutron data. They offer many advantages to other common formats and are widely used at many facilities. However, it has been found that the existing implementations of these standards have limited the performance of some recent detector systems. This paper describes how the synchrotron light source community has worked closely with The HDF Group to drive changes to the HDF5 software to make it more suitable for their environment. This includes developments managed by a detector manufacturer (Dectris - for direct chunk writes) as well as synchrotrons (DESY, ESRF and Diamond - for pluggable filters, Single Writer/Multiple Reader and Virtual Data Sets).

Poster WEPGF063 [0.702 MB]

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WEPGF083

Single Neutron Counting Using CCD and CMOS Cameras

detector, electron, simulation, background

889

P. Mutti, M. Plaz, E. Ruiz-Martinez, P. Van Esch
ILL, Grenoble, France
M. Crisanti
Università degli di Perugia, Perugia, Italy

Neutron detection traditionally takes place with detectors based upon particle detection technologies like gas or scintillation detections. These detectors have a high dynamic range, and are very performing at low counting rates and fast timing (time of flight) applications. At high counting rates however, continuous imaging detectors such as CCD or CMOS camera's optically linked to scintillators, can have very good performances concerning linearity and spatial resolution but the dynamic range of these systems is limited by noise and gamma background. We explore a technique that allows us to use imaging detectors as counting detectors at lower counting rates, and transits smoothly to continuous imaging at higher rates. Neutron detection involves reactions releasing energies of the order of the MeV, while X-ray detection releases energies of the order of the photon energy, (10 KeV range). This 100-fold higher energy allows the individual neutron detection light signal to be significantly above the noise level, as such allowing for discrimination and individual counting. The theory is next confronted with experimental measurements on CCD and CMOS type commercial cameras.

Poster WEPGF083 [7.979 MB]

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WEPGF084

New Digitisers for Position Sensitive 3He Proportional Counters

detector, electronics, FPGA, ion

893

P. Mutti, M. Plaz, E. Ruiz-Martinez, P. Van Esch
ILL, Grenoble, France

3He gas-filled detectors are a classical choice for the detection of thermal and cold neutrons. The incident neutrons are captured by the 3He producing a tritium and an hydrogen which are sharing the 765 keV of energy generated in the reaction. The classical geometry of a charge-division neutron detector consists of a cylindrical volume housing a resistive anode. Electrical signals are extracted at both ends of the tube and the information about the interaction point along the tube can be derived from the ratio of the collected charged at both ends. The classical analog approach for the charge readout consists of a shaping amplifier coupled with a peak sensing ADC. The development of a new digital front-end electronics based on 64 channels, 62.5 Msample/s and 12 bit digitisers, is reported on. Excellent results have been obtained in terms of position resolution and signal to noise ratio when adopting a continuous digital filtering and gaussian shaping.

Poster WEPGF084 [8.289 MB]

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WEPGF105

EPICS V4 Evaluation for SNS Neutron Data

EPICS, network, detector, data-acquisition

947

K.-U. Kasemir, G.S. Guyotte, M.R. Pearson
ORNL, Oak Ridge, Tennessee, USA

Funding: This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy.
Version 4 of the Experimental Physics and Industrial Control System (EPICS) toolkit allows defining application-specific structured data types (pvData) and offers a network protocol for their efficient exchange (pvAccess). We evaluated V4 for the transport of neutron events from the detectors of the Spallation Neutron Source (SNS) to data acquisition and experiment monitoring systems. This includes the comparison of possible data structures, performance tests, and experience using V4 in production on a beam line.

Poster WEPGF105 [1.281 MB]

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THHA3O03

Managing Neutron Beam Scans at the Canadian Neutron Beam Centre

database, experiment, controls, software

1096

M.R. Vigder, M.L. Cusick, D. Dean
CNL, Ontario, Canada

The Canadian Neutron Beam Centre (CNBC) of the Canadian Nuclear Laboratories (CNL) operate six beam lines for material research. A single beam line experiment requires scientists to acquire data as a sequence of scans that involves data acquisition at many points, varying sample positions, samples, wavelength, sample environment, etc. The points at which measurements must be taken can number in the thousands with scans or their variations having to be run multiple times. At the CNBC an approach has been developed to allow scientists to specify and manage their scans using a set of processes and tools. Scans are specified using a set of constructors and a scan algebra that allows scans to be combined using a set of scan operators. Using the operators of the algebra, complex scan sequences can be constructed from simpler scans and run unattended for up to a few days. Based on the constructors and the algebra, tools are provided to scientists to build, organize and execute their scans. These tools can take the form of scripting languages, spreadsheets, or databases. This scanning technique is currently in use at CNL, and has been implemented in Python on an EPICS based control system.

Slides THHA3O03 [0.745 MB]

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THHD3O01

Control Systems for Spallation Target in China Initiative Accelerator Driven System

controls, target, network, Ethernet

1147

Z. He, W. Cui, Y. Luo, X. Ting, H.S. Xu, L. Yang, X. Zhang, Q. Zhao
IMP/CAS, Lanzhou, People's Republic of China

In this paper, we report the design of the control system for the spallation target in China initiative accelerator driven sub-critical (ADS) system, where a heavy-metal target located vertically at the centre of a sub-critical reactor core is bombarded vertically by the high-energy protons from an accelerator. The main functions of the control system for the target are to monitor and control thermal hydraulic, neutron flux, and accelerator-target interface. The first function is to control the components in the primary and secondary loops, such as pumps, heat exchangers, valves, sensors, etc. For the commissioning measurements of the accelerator, the second function is to monitor the neutrons from the spallation target. The three-layer architecture has been used in the control system. In the middle network layer, in order to increase the network reliability, the redundant Ethernet based on Ethernet ring protection protocol has been considered. In the bottom equipment layer, the equipment controls for the above-mentioned functions have been designed. Finally, because the main objective of the target is to integrate the accelerator and the reactor into one system, the integration of accelerator's control system and the reactor's instrumentation and controls into the target's control system has been mentioned.

Slides THHD3O01 [0.628 MB]

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FRB3O02

Status of the European Spallation Source Control System

controls, EPICS, operation, software

1177

T. Korhonen, R. Andersson, F. Bellorini, S.L. Birch, D.P. Brodrick, H. Carling, J. Cereijo García, R.N. Fernandes, L. Fernandez, B. Gallese, S.R. Gysin, E. Laface, N. Levchenko, M. Mansouri Sharifabad, A. Monera Martinez, R. Mudingay, A. Nordt, D. Paulic, D.P. Piso, K. Rathsman, M. Reščič, G. Trahern, M. Zaera-Sanz
ESS, Lund, Sweden
N. Claesson, U. Rojec, K. Strniša, A.A. Söderqvist
Cosylab, Ljubljana, Slovenia

The European Spallation Source (ESS) is a collaboration of 17 European countries to build the world's most powerful neutron source for research. ESS has entered the construction phase and the plan is to produce first neutrons by 2019 and to complete the construction by 2025. The Integrated Control System Division (ICS) is responsible to provide control systems for the whole facility. The unprecented beam power of 5 MW and the construction of the facility with many components contributed in-kind presents a number of challenges to the control system. Systems have to be specified so that the work can be effectively shared between the contributors and on-site staff. Control system components need to provide a level of performance that can support the operation of the facility, be standardized so that integration to the facility can be done during a short installation period and be maintainable by the in-house staff after the construction has finished. This paper will outline the plans and principles that will be used to construct the control systems. The selected technologies and standards will be presented, as well as the plans for integration.

Slides FRB3O02 [1.184 MB]

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