IPAC2016 - Classification: 06 Beam Instrumentation, Controls, Feedback and Operational Aspects / T04 Accelerator/Storage Ring Control Systems

Paper	Title	Page
THPOW013	ARM-Based Controller of Power Supply for Focus Solenoid of Klystron	3957
	Z.R. Zhou, F.L. Shang, L. Shang USTC/NSRL, Hefei, Anhui, People's Republic of China
	Funding: Supported by the National Science Foundation of China 11175181 By the Fundamental Research Funds for the Central Universities WK2310000056 Klystrons are widely used in accelerators to provide powerful microwave power to the accelerating structure of linac to accelerate particles. The stability of a klystron is affected by the beam quality of high voltage gun of the klystron. The focus solenoid is needed to provide focus magnetic field around the klystron. ARM-based high performance of current stability power supply is designed to improve the quality of focus magnetic field of klystron, with a two-loop-hybrid design, which could achieve fast dynamic response and high static stability performance, instead of analogue power supply design. The bench test of the ARM-based controlled is done and the commissioning of the controller needs be done in future study.
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THPOW027	Compact X-band Accelerator Controls for a Laser-Compton X-ray Source	3996
	D.J. Gibson, G.G. Anderson, C.P.J. Barty, R.A. Marsh LLNL, Livermore, California, USA
	Funding: This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. LLNL's compact, tunable, laser-Compton x-ray source has been built around an advanced X-band photogun and accelerator sections and two independent laser systems. In support of this source, a complete integrated control system has been designed and built from scratch to provide access to the critical control points and continues to grow to simplify operation of the system and to meet new needs of this research capability. In addition to a PLC-based machine protection component, a custom, LabView-based suite of control software monitors systems including low level and high power RF, vacuum, magnets, and beam imaging cameras. This system includes a comprehensive operator interface, automated and expandable arc detection to optimize rf conditioning of the high-gradient structures, and automated quad-scan-based emittance measurements to explore the beam tuning parameter space. An overview of this system is presented, including the latest upgrades to FPGA-based hardware for the RF system controls.
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THPOW060	Basic Design of Control System for IPM Linear Accelerator	4082
	S. Haghtalab, F. Abbasi Shahid Beheshti University, Tehran, Iran F. Ghasemi NSTRI, Tehran, Iran M. Jafarzadeh ILSF, Tehran, Iran M. Lamehi IPM, Tehran, Iran
	A control system has been designed for the commissioning of 10 MeV linear accelerator which is under construction in institute for research in fundamental science (IPM). The IPM e-Linac is a traveling wave accelerator consisting of 62 components in five major sections: control and safety, beam injection, radio frequency production and transmission, acceleration tube and target. The existence of a central control system for controlling and monitoring all parts of the machine is necessary. The aim of the system design is to implement a fast and reliable control system which is easy to operate and extensible for future upgrades and improvements. For this purpose, EPICS has been chosen as the main environment due to high performance and distributed structure. In this system, Siemens PLC is used as EPICS IOC and graphical designs will performed by CSS and WinCC. In this study, first we present a brief description of the IPM electron linear accelerator, and then architecture of the control system will be discussed.
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THPOY001	Implementation of a New Ramp Computation Scheme for the Magnet Power Supplies at ELSA	4085
	D. Proft, W. Hillert ELSA, Bonn, Germany
	At the ELSA electron stretcher facility new power supply control units have been commissioned. These require a new software interface for set-point calculation based on the accelerator and timing model. Goal of the new scheme is a strict separation of the bidirectional ramp computation into an accelerator model dependent, a magnet dependent and a power supply dependent part. This introduces possible calibration/correction factors on each layer, thus allowing easy component replacement of the power supplies, the control units or even the magnets without the need for recalibration of the whole chain. In this contribution we will provide insights into the implementation of the new modeling scheme.
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THPOY003	The Turn-key Control System for the ELI-NP Gamma Beam System	4091
	S. Pioli, G. Di Pirro INFN/LNF, Frascati (Roma), Italy F. Amand, V.A. Isaev, A. Jesenko, A. Manojlovic, R. Modic, I. Mustac, G. Pajor Cosylab, Ljubljana, Slovenia B.G. Martlew, A. Oates STFC/DL, Daresbury, Warrington, Cheshire, United Kingdom
	The new Gamma Beam System (GBS) under construction in Magurele (RO) by the consortium EuroGammas led by INFN, as part of the ELI-NP project, can provide gamma rays that open new possibilities for nuclear photonics and nuclear physics. In the ELI-GBS, gamma rays are produced by means of Compton back-scattering to get mono-chromaticity (0,1% bandwidth), a high flux (10¹³ photon/s the highest in the world), tunable directions and energies up to 19 MeV. Such gamma beam characteristic is obtained when a high-intensity laser collides a high-brightness electron-beam with energies up to 720 MeV. In order to increase the gamma beam flux, the electron beam operates at a repetition rate of 100 Hz in a multi-bunch mode: trains of 32 bunches, 16 ns apart, interact with the laser pulse recirculated 32 times through the interaction point. The EPICS Control System collects data from all sub-systems, constantly monitoring to ensure the safety of the ELI-GBS facility. This paper describes all the aspects of the ELI-GBS turn-key Control System, such as hardware integration, micro-bunches diagnostics, high level applications, the data network and the pico-second timing system.
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THPOY005	Virtual Accelerator System for Online and Offline Simulations	4094
	S. Ma, C. Li, G. Liu, J.G. Wang, W. Xu, K. Xuan USTC/NSRL, Hefei, Anhui, People's Republic of China
	Synchrotron radiation light sources have been becoming import scientific tools in various research areas. To build a state-of-the-art synchrotron radiation light source, one need to carefully study the linear and nonlinear dynamics of the charged beam in each of the light source components, such as the linac, transfer line, booster synchrotron and storage ring. There are many mature software tools, including MAD, elegant and Accelerator toolkit (AT), can be used to accomplish these tasks. In order to achieve a high performance light source, up-to-date technologies are adopt to build various subsystems. The integration of these subsystems need to be fully tested before the light source is operated. However, there lacks of a good software to perform this work. The virtual light source (VLS), a software based upon EPICS and AT, is developed at the National Synchrotron Radiation Laboratory (NSRL) to fulfill this purpose. This paper presents the details of this software. Some critical applications are also illustrated.
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THPOY007	Application of Embedded Linux Boards in SSRF and SXFEL Control System	4098
	Y.B. Yan, G.H. Chen, L.W. Lai, Y.B. Leng, L.Y. Yu, W.M. Zhou SINAP, Shanghai, People's Republic of China
	Funding: CAS Key Technology Talent Program and Youth Innovation Promotion Association The embedded Linux boards, such as Raspberry Pi B+ and Beaglebone Black, are credit-card-sized single-board computer. They are low-cost and equipped with a huge array of GPIO (general purpose input output), which can be used to take readings from sensors and control external devices. The active development community and open-source nature also make them ideal choices for many applications. They can be integrated with the accelerator control system and make more devices 'intelligent' via an economical way. It will be helpful to improve the efficiency of the accelerator. The details of the applications in SSRF and SXFEL control system will be reported in this paper.
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THPOY008	Tango Based Control System at SOLARIS Synchrotron	4101
	P.P. Goryl, C.J. Bocchetta, Ł.J. Dudek, P. Galuszka, A. Kisiel, W.T. Kitka, M.P. Kopec, M.J. Stankiewicz, A.I. Wawrzyniak, K. Wawrzyniak, Ł. Żytniak Solaris, Kraków, Poland I. Dolin'ek, U. Legat Cosylab, Ljubljana, Slovenia V.H. Hardion, J.J. Jamróz, D.P. Spruce MAX IV Laboratory, Lund University, Lund, Sweden P. Kurdziel, M. Ostoja-Gajewski, J. Szota-Pachowicz Solaris National Synchrotron Radiation Centre, Jagiellonian University, Kraków, Poland
	A National Synchrotron Radiation Centre SOLARIS has been recently built in Kraków, Poland. The accelerator is in commissioning phase. The control system is in operation and provides all functionalities required for the commissioning process. The system is based on Tango Controls and has been developed with strong collaboration with MAX-IV, Lund Sweden and the Tango Community. Protections systems uses Rockwell and Siemens PLC hardware. Synchronization system is based on the MRF hardware. Status, technologies and performance experience will be presented.
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THPOY009	Control System of the C-Band Standing-Wave Accelerator for the Medical Application	4104
	H. Lim, D.H. Jeong, M.W. Lee, M.J. Lee, S.W. Shin, J. Yi Dongnam Institute of Radiological and Medical Sciences, Busan, Republic of Korea
	A control system has been developed for the 6 MeV C-band accelerator which will be used for the medical application. It is built in the PXI platform and implemented for the operation and the monitoring of sub-components by the LabView programs. To communicate with components in the RF noise environment and to send/store the various monitoring data to the storage server, the interface based on Ethernet is used and it allows the real-time monitoring and the safe and fast feed-back system. In order to achieve the beam stability < 3.3 %, the automatic frequency controller for the magnetron is implemented by the feed-back scheme using the frequency waveform data and the constant cavity temperature is controlled by the real-time monitoring and interlock. In addition, the dose rate and flatness are controlled by a monitor chamber. The interlock system is also designed to protect the patients and also linac components against the improper operation, largely radiation, the misbehavior of monitoring parameters, etc. The architecture and main features are described and operation results are reported.
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THPOY010	EPICS Integration of Simple Network Management Protocol for RISP	4107
	M.J. Park, H. Jang, S. Lee, C.W. Son, H.J. Son IBS, Daejeon, Republic of Korea S.H. Nam Korea University, Seoul, Republic of Korea
	The Rare Isotope Science Project (RISP) Control System is comprised of ethernet-based devices and equipment. Control system is based on Experimental Physics and Industrial Control System (EPICS) Framework, known as a distributed control system through network. So, we need a way for integrating ethernet-based devices into EPICS Framework. Most of these devices support Simple Network Management Protocol (SNMP). SNMP is based on the manager and agent model and it is similar to EPICS Channel Access (CA) protocol. Therefore, SNMP helps to develop a unified network-based control system with EPICS. In this paper, we will show the network device monitoring system RAON customized SNMP integration into EPICS.
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THPOY012	Implementation of Data Acquisition System for Operating Condition in the 100 Mev Proton Linac	4110
	J.H. Kim, Y.-S. Cho, H.-J. Kwon, Y.G. Song Korea Atomic Energy Research Institute (KAERI), Gyeongbuk, Republic of Korea
	Funding: The Ministry of Science, ICT & Future Planning of the Korean Government. The goal of data acquisition system is to provide an efficient user interface to analyze operating condition of the KOMAC linac. The KOMAC control system which is based on Experimental physics and Industrial Control System (EPICS) has been monitoring and archiving the operating condition using Channel Access (CA) protocol. A data acquisition system has been developed with Qt framework that accesses EPICS IOCS and MySQL database via EPICS CA protocol. The data acquisition system provides calibrated data and efficient function to analyze data easily. In this paper, we are describing the implementation of data acquisition system for operating condition in the 100-MeV proton linac.
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THPOY013	Signal Archiving System for RISP Heavy-ion Accelerator Control System	4113
SUPSS076	use link to see paper's listing under its alternate paper code
	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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THPOY015	Control System Developments for the MYRRHA Linac	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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THPOY017	Design and Implementation of Embedded Applications with EPICS Support for Accelerator Controls	4122
	Y.-S. Cheng, K.T. Hsu, K.H. Hu, C.H. Huang, D. Lee, C.Y. Liao NSRRC, Hsinchu, Taiwan
	Low-cost credit-card size SBCs (single-board computer) are with small footprint, powerful in CPU performance and rich interfaces solution to widely adopted for educational purposes and also suitable for small scale embedded applications. The card-size SBCs have been applied for several applications with EPICS support at the TPS control system environment as auxiliary supports which are not suitable to use standard platform in existed control system due to economics, simplicity, specialty view points. The more efforts of several implemented applications are summarized in this paper.
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THPOY020	Neural Network Modeling of the PXIE RFQ Cooling System and Resonant Frequency Response	4131
	A.L. Edelen, S. Biedron, S.V. Milton CSU, Fort Collins, Colorado, USA D.L. Bowring, B.E. Chase, J.P. Edelen, J. Steimel Fermilab, Batavia, Illinois, USA
	As part of the PIP-II Injector Experiment (PXIE) accel-erator, a four-vane radio frequency quadrupole (RFQ) accelerates a 30-keV, 1-mA to 10-mA H' ion beam to 2.1 MeV. It is designed to operate at a frequency of 162.5 MHz with arbitrary duty factor, including continuous wave (CW) mode. The resonant frequency is controlled solely by a water-cooling system. We present an initial neural network model of the RFQ frequency response to changes in the cooling system and RF power conditions during pulsed operation. A neural network model will be used in a model predictive control scheme to regulate the resonant frequency of the RFQ.
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THPOY021	NSLS-II Dedicated Python Tools for Simulation and Analysis	4134
	J. Choi BNL, Upton, Long Island, New York, USA
	Funding: DOE contract No: DE-SC0012704 Python is a high-level interpreted programming language. Despite its slow benchmarks, because of its fast coding cycle and dynamic property, the users are increasing fast in all areas. Also, because it does not need special care for the memory management, both professional and non-professional programmers can easily make bug-free code just by concentrating on logics. Furthermore, fast increasing libraries are making the language more and more useful. With these advantages, we developed python tools which simulate and analyze the particle accelerator with some parts being dedicated to NSLS-II operation.
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THPOY022	Database Development for NSLS-II Accelerator Data Management	4137
	J. Choi, T.V. Shaftan BNL, Upton, Long Island, New York, USA
	Funding: DOE contract No: DE-SC0012704 NSLS-II is developing a database which will be used for the accelerator data management. The information related to the operation is the main target at this stage. Also, various documents are being collected to provide easy access and installing workflow management is under consideration. The database will have web-based interfaces to communicate with the users. This paper overviews the database structures and required functionalities.
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Paper

Title

Page

ARM-Based Controller of Power Supply for Focus Solenoid of Klystron

3957

Z.R. Zhou, F.L. Shang, L. Shang
USTC/NSRL, Hefei, Anhui, People's Republic of China

Funding: Supported by the National Science Foundation of China 11175181 By the Fundamental Research Funds for the Central Universities WK2310000056
Klystrons are widely used in accelerators to provide powerful microwave power to the accelerating structure of linac to accelerate particles. The stability of a klystron is affected by the beam quality of high voltage gun of the klystron. The focus solenoid is needed to provide focus magnetic field around the klystron. ARM-based high performance of current stability power supply is designed to improve the quality of focus magnetic field of klystron, with a two-loop-hybrid design, which could achieve fast dynamic response and high static stability performance, instead of analogue power supply design. The bench test of the ARM-based controlled is done and the commissioning of the controller needs be done in future study.

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THPOW027

Compact X-band Accelerator Controls for a Laser-Compton X-ray Source

3996

D.J. Gibson, G.G. Anderson, C.P.J. Barty, R.A. Marsh
LLNL, Livermore, California, USA

Funding: This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
LLNL's compact, tunable, laser-Compton x-ray source has been built around an advanced X-band photogun and accelerator sections and two independent laser systems. In support of this source, a complete integrated control system has been designed and built from scratch to provide access to the critical control points and continues to grow to simplify operation of the system and to meet new needs of this research capability. In addition to a PLC-based machine protection component, a custom, LabView-based suite of control software monitors systems including low level and high power RF, vacuum, magnets, and beam imaging cameras. This system includes a comprehensive operator interface, automated and expandable arc detection to optimize rf conditioning of the high-gradient structures, and automated quad-scan-based emittance measurements to explore the beam tuning parameter space. An overview of this system is presented, including the latest upgrades to FPGA-based hardware for the RF system controls.

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THPOW060

Basic Design of Control System for IPM Linear Accelerator

4082

S. Haghtalab, F. Abbasi
Shahid Beheshti University, Tehran, Iran
F. Ghasemi
NSTRI, Tehran, Iran
M. Jafarzadeh
ILSF, Tehran, Iran
M. Lamehi
IPM, Tehran, Iran

A control system has been designed for the commissioning of 10 MeV linear accelerator which is under construction in institute for research in fundamental science (IPM). The IPM e-Linac is a traveling wave accelerator consisting of 62 components in five major sections: control and safety, beam injection, radio frequency production and transmission, acceleration tube and target. The existence of a central control system for controlling and monitoring all parts of the machine is necessary. The aim of the system design is to implement a fast and reliable control system which is easy to operate and extensible for future upgrades and improvements. For this purpose, EPICS has been chosen as the main environment due to high performance and distributed structure. In this system, Siemens PLC is used as EPICS IOC and graphical designs will performed by CSS and WinCC. In this study, first we present a brief description of the IPM electron linear accelerator, and then architecture of the control system will be discussed.

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THPOY001

Implementation of a New Ramp Computation Scheme for the Magnet Power Supplies at ELSA

4085

D. Proft, W. Hillert
ELSA, Bonn, Germany

At the ELSA electron stretcher facility new power supply control units have been commissioned. These require a new software interface for set-point calculation based on the accelerator and timing model. Goal of the new scheme is a strict separation of the bidirectional ramp computation into an accelerator model dependent, a magnet dependent and a power supply dependent part. This introduces possible calibration/correction factors on each layer, thus allowing easy component replacement of the power supplies, the control units or even the magnets without the need for recalibration of the whole chain. In this contribution we will provide insights into the implementation of the new modeling scheme.

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THPOY003

The Turn-key Control System for the ELI-NP Gamma Beam System

4091

S. Pioli, G. Di Pirro
INFN/LNF, Frascati (Roma), Italy
F. Amand, V.A. Isaev, A. Jesenko, A. Manojlovic, R. Modic, I. Mustac, G. Pajor
Cosylab, Ljubljana, Slovenia
B.G. Martlew, A. Oates
STFC/DL, Daresbury, Warrington, Cheshire, United Kingdom

The new Gamma Beam System (GBS) under construction in Magurele (RO) by the consortium EuroGammas led by INFN, as part of the ELI-NP project, can provide gamma rays that open new possibilities for nuclear photonics and nuclear physics. In the ELI-GBS, gamma rays are produced by means of Compton back-scattering to get mono-chromaticity (0,1% bandwidth), a high flux (10¹³ photon/s the highest in the world), tunable directions and energies up to 19 MeV. Such gamma beam characteristic is obtained when a high-intensity laser collides a high-brightness electron-beam with energies up to 720 MeV. In order to increase the gamma beam flux, the electron beam operates at a repetition rate of 100 Hz in a multi-bunch mode: trains of 32 bunches, 16 ns apart, interact with the laser pulse recirculated 32 times through the interaction point. The EPICS Control System collects data from all sub-systems, constantly monitoring to ensure the safety of the ELI-GBS facility. This paper describes all the aspects of the ELI-GBS turn-key Control System, such as hardware integration, micro-bunches diagnostics, high level applications, the data network and the pico-second timing system.

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THPOY005

Virtual Accelerator System for Online and Offline Simulations

4094

S. Ma, C. Li, G. Liu, J.G. Wang, W. Xu, K. Xuan
USTC/NSRL, Hefei, Anhui, People's Republic of China

Synchrotron radiation light sources have been becoming import scientific tools in various research areas. To build a state-of-the-art synchrotron radiation light source, one need to carefully study the linear and nonlinear dynamics of the charged beam in each of the light source components, such as the linac, transfer line, booster synchrotron and storage ring. There are many mature software tools, including MAD, elegant and Accelerator toolkit (AT), can be used to accomplish these tasks. In order to achieve a high performance light source, up-to-date technologies are adopt to build various subsystems. The integration of these subsystems need to be fully tested before the light source is operated. However, there lacks of a good software to perform this work. The virtual light source (VLS), a software based upon EPICS and AT, is developed at the National Synchrotron Radiation Laboratory (NSRL) to fulfill this purpose. This paper presents the details of this software. Some critical applications are also illustrated.

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THPOY007

Application of Embedded Linux Boards in SSRF and SXFEL Control System

4098

Y.B. Yan, G.H. Chen, L.W. Lai, Y.B. Leng, L.Y. Yu, W.M. Zhou
SINAP, Shanghai, People's Republic of China

Funding: CAS Key Technology Talent Program and Youth Innovation Promotion Association
The embedded Linux boards, such as Raspberry Pi B+ and Beaglebone Black, are credit-card-sized single-board computer. They are low-cost and equipped with a huge array of GPIO (general purpose input output), which can be used to take readings from sensors and control external devices. The active development community and open-source nature also make them ideal choices for many applications. They can be integrated with the accelerator control system and make more devices 'intelligent' via an economical way. It will be helpful to improve the efficiency of the accelerator. The details of the applications in SSRF and SXFEL control system will be reported in this paper.

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THPOY008

Tango Based Control System at SOLARIS Synchrotron

4101

P.P. Goryl, C.J. Bocchetta, Ł.J. Dudek, P. Galuszka, A. Kisiel, W.T. Kitka, M.P. Kopec, M.J. Stankiewicz, A.I. Wawrzyniak, K. Wawrzyniak, Ł. Żytniak
Solaris, Kraków, Poland
I. Dolin'ek, U. Legat
Cosylab, Ljubljana, Slovenia
V.H. Hardion, J.J. Jamróz, D.P. Spruce
MAX IV Laboratory, Lund University, Lund, Sweden
P. Kurdziel, M. Ostoja-Gajewski, J. Szota-Pachowicz
Solaris National Synchrotron Radiation Centre, Jagiellonian University, Kraków, Poland

A National Synchrotron Radiation Centre SOLARIS has been recently built in Kraków, Poland. The accelerator is in commissioning phase. The control system is in operation and provides all functionalities required for the commissioning process. The system is based on Tango Controls and has been developed with strong collaboration with MAX-IV, Lund Sweden and the Tango Community. Protections systems uses Rockwell and Siemens PLC hardware. Synchronization system is based on the MRF hardware. Status, technologies and performance experience will be presented.

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THPOY009

Control System of the C-Band Standing-Wave Accelerator for the Medical Application

4104

H. Lim, D.H. Jeong, M.W. Lee, M.J. Lee, S.W. Shin, J. Yi
Dongnam Institute of Radiological and Medical Sciences, Busan, Republic of Korea

A control system has been developed for the 6 MeV C-band accelerator which will be used for the medical application. It is built in the PXI platform and implemented for the operation and the monitoring of sub-components by the LabView programs. To communicate with components in the RF noise environment and to send/store the various monitoring data to the storage server, the interface based on Ethernet is used and it allows the real-time monitoring and the safe and fast feed-back system. In order to achieve the beam stability < 3.3 %, the automatic frequency controller for the magnetron is implemented by the feed-back scheme using the frequency waveform data and the constant cavity temperature is controlled by the real-time monitoring and interlock. In addition, the dose rate and flatness are controlled by a monitor chamber. The interlock system is also designed to protect the patients and also linac components against the improper operation, largely radiation, the misbehavior of monitoring parameters, etc. The architecture and main features are described and operation results are reported.

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THPOY010

EPICS Integration of Simple Network Management Protocol for RISP

4107

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

The Rare Isotope Science Project (RISP) Control System is comprised of ethernet-based devices and equipment. Control system is based on Experimental Physics and Industrial Control System (EPICS) Framework, known as a distributed control system through network. So, we need a way for integrating ethernet-based devices into EPICS Framework. Most of these devices support Simple Network Management Protocol (SNMP). SNMP is based on the manager and agent model and it is similar to EPICS Channel Access (CA) protocol. Therefore, SNMP helps to develop a unified network-based control system with EPICS. In this paper, we will show the network device monitoring system RAON customized SNMP integration into EPICS.

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THPOY012

Implementation of Data Acquisition System for Operating Condition in the 100 Mev Proton Linac

4110

J.H. Kim, Y.-S. Cho, H.-J. Kwon, Y.G. Song
Korea Atomic Energy Research Institute (KAERI), Gyeongbuk, Republic of Korea

Funding: The Ministry of Science, ICT & Future Planning of the Korean Government.
The goal of data acquisition system is to provide an efficient user interface to analyze operating condition of the KOMAC linac. The KOMAC control system which is based on Experimental physics and Industrial Control System (EPICS) has been monitoring and archiving the operating condition using Channel Access (CA) protocol. A data acquisition system has been developed with Qt framework that accesses EPICS IOCS and MySQL database via EPICS CA protocol. The data acquisition system provides calibrated data and efficient function to analyze data easily. In this paper, we are describing the implementation of data acquisition system for operating condition in the 100-MeV proton linac.

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THPOY013

Signal Archiving System for RISP Heavy-ion Accelerator Control System

4113

SUPSS076

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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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THPOY015

Control System Developments for the MYRRHA Linac

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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THPOY017

Design and Implementation of Embedded Applications with EPICS Support for Accelerator Controls

4122

Y.-S. Cheng, K.T. Hsu, K.H. Hu, C.H. Huang, D. Lee, C.Y. Liao
NSRRC, Hsinchu, Taiwan

Low-cost credit-card size SBCs (single-board computer) are with small footprint, powerful in CPU performance and rich interfaces solution to widely adopted for educational purposes and also suitable for small scale embedded applications. The card-size SBCs have been applied for several applications with EPICS support at the TPS control system environment as auxiliary supports which are not suitable to use standard platform in existed control system due to economics, simplicity, specialty view points. The more efforts of several implemented applications are summarized in this paper.

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THPOY020

Neural Network Modeling of the PXIE RFQ Cooling System and Resonant Frequency Response

4131

A.L. Edelen, S. Biedron, S.V. Milton
CSU, Fort Collins, Colorado, USA
D.L. Bowring, B.E. Chase, J.P. Edelen, J. Steimel
Fermilab, Batavia, Illinois, USA

As part of the PIP-II Injector Experiment (PXIE) accel-erator, a four-vane radio frequency quadrupole (RFQ) accelerates a 30-keV, 1-mA to 10-mA H' ion beam to 2.1 MeV. It is designed to operate at a frequency of 162.5 MHz with arbitrary duty factor, including continuous wave (CW) mode. The resonant frequency is controlled solely by a water-cooling system. We present an initial neural network model of the RFQ frequency response to changes in the cooling system and RF power conditions during pulsed operation. A neural network model will be used in a model predictive control scheme to regulate the resonant frequency of the RFQ.

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THPOY021

NSLS-II Dedicated Python Tools for Simulation and Analysis

4134

J. Choi
BNL, Upton, Long Island, New York, USA

Funding: DOE contract No: DE-SC0012704
Python is a high-level interpreted programming language. Despite its slow benchmarks, because of its fast coding cycle and dynamic property, the users are increasing fast in all areas. Also, because it does not need special care for the memory management, both professional and non-professional programmers can easily make bug-free code just by concentrating on logics. Furthermore, fast increasing libraries are making the language more and more useful. With these advantages, we developed python tools which simulate and analyze the particle accelerator with some parts being dedicated to NSLS-II operation.

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THPOY022

Database Development for NSLS-II Accelerator Data Management

4137

J. Choi, T.V. Shaftan
BNL, Upton, Long Island, New York, USA

Funding: DOE contract No: DE-SC0012704
NSLS-II is developing a database which will be used for the accelerator data management. The information related to the operation is the main target at this stage. Also, various documents are being collected to provide easy access and installing workflow management is under consideration. The database will have web-based interfaces to communicate with the users. This paper overviews the database structures and required functionalities.

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