IBIC2016 - List of Keywords (hardware)

Paper	Title	Other Keywords	Page
MOBL04	LHC Online Chromaticity Measurement - Experience After One Year of Operation	injection, operation, controls, feedback	20
	K. Fuchsberger, G.H. Hemelsoet CERN, Geneva, Switzerland
	Hardware and infrastructural requirements to measure chromaticity in the LHC were available since the beginning. However, the calculation of the chromaticity was mostly made offline. This gap was closed in 2015 by the development of a dedicated application for the LHC control room, which takes the measured data and produces estimates for the chromaticity values immediately online and allows to correct chroma and tune accordingly. This tool proved to be essential during commissioning as well as during every injection-phase of the LHC. It became particularly important during the intensity ramp-up with 25ns where good control of the chromaticity became crucial at injection. This paper describes the concepts and algorithms behind this tool, the experience gained as well as further plans for improvements.
	Slides MOBL04 [7.414 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOBL04
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MOPG06	First Beam Tests of the APS MBA Upgrade Orbit Feedback Controller	feedback, controls, power-supply, storage-ring	39
	N. Sereno, N.D. Arnold, A.R. Brill, H. Bui, J. Carwardine, G. Decker, B. Deriy, L. Emery, R.I. Farnsworth, T. Fors, R.T. Keane, F. Lenkszus, R.M. Lill, D.R. Paskvan, A.F. Pietryla, H. Shang, S.E. Shoaf, S. Veseli, J. Wang, S. Xu, B.X. Yang ANL, Argonne, Illinois, USA
	Funding: Work supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357 The new orbit feedback system required for the APS multi-bend acromat (MBA) ring must meet challenging beam stability requirements. The AC stability requirement is to correct rms beam motion to 10 \% the rms beam size at the insertion device source points from 0.01 to 1000 Hz. The vertical plane represents the biggest challenge for AC stability which is required to be 400 nm rms for a 4 micron vertical beam size. In addition long term drift over a period of 7 days is required to be 1 micron or less at insertion device BPMs and 2 microns for arc bpms. We present test results of the MBA prototype orbit feedback controller (FBC) in the APS storage ring. In this test, four insertion device BPMs were configured to send data to the FBC for processing into four fast corrector setpoints. The configuration of four bpms and four fast correctors creates a 4-bump and the configuration of fast correctors is similar to what will be implemented in the MBA ring. We report on performance benefits of increasing the sampling rate by a factor of 15 to 22.6 kHz over the existing APS orbit feedback system, limitations due to existing storage ring hardware and MBA orbit feedback design.
	Poster MOPG06 [6.490 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG06
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MOPG49	A Precise Pulsed Current Source for Absolute Calibration of Current Measurement Systems With No DC Response	operation, power-supply, impedance, instrumentation	165
	M. Krupa, M. Gąsior CERN, Geneva, Switzerland M. Krupa TUL-DMCS, Łódź, Poland
	Absolute calibration of systems with no DC response requires pulsed calibration circuits. This paper presents a precise pulsed current source designed primarily for remote calibration of a beam intensity measurement system. However, due to its simple and flexible design, it might also prove interesting for other applications. The circuit was designed to drive a load of 10 Ω with current pulses lasting a few hundred microseconds with an amplitude of 1 A and precision in the order of 0.01%. The circuit is equipped with a half-bridge for precise determination of the absolute output current using the 0 V method. This paper presents the circuit topology and discusses in detail the choice of the critical components along with their influence on the final achieved accuracy. The performance of the built prototype of the current source is presented with laboratory measurements.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG49
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MOPG57	Temperature and Humidity Drift Characterization of Passive RF Components for a Two-Tone Calibration Method	detector, laser, injection, radio-frequency	194
	E. Janas, K. Czuba Warsaw University of Technology, Institute of Electronic Systems, Warsaw, Poland E. Janas, U. Mavrič, H. Schlarb DESY, Hamburg, Germany
	Femtosecond-level synchronization is required for various systems in modern accelerators especially in fourth generation light sources. In those high precision synchronization systems the phase detection accuracy is crucial. However, synchronization to a low noise electrical source is corrupted by a phase detection error originating in the electrical components and connections due to thermal and humidity-related drifts. In future, we plan to implement calibration methods to mitigate these drifts. Those methods require a calibration signal injection, called second tone, into the system. Intrinsically, the injection circuit remains uncalibrated therefore it needs to be drift-free. We performed drift characterization of a set of RF components, which could serve for implementation of a signal injection circuit, namely selected types of couplers and splitters. We describe the measurement setup and discuss the challenges associated with this kind of measurement. Finally, we provide a qualitative and quantitative evaluation of the measurements results.
	Poster MOPG57 [2.823 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG57
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TUAL03	Beam Loss and Abort Diagnostics during SuperKEKB Phase-I Operation	injection, kicker, timing, cavity	282
	H. Ikeda, J.W. Flanagan, H. Fukuma, T. Furuya, M. Tobiyama KEK, Ibaraki, Japan
	Beam commissioning of SuperKEKB Phase-I started in Feb., 2016. In order to protect the hardware components of the accelerator against unstable Ampere class beams, the controlled beam abort system was upgraded. Because of the higher beam intensity and shorter beam lifetime than at the original KEKB, a beam abort monitor system is important for machine tuning and the safety of the components. The system collected the data of all aborts of more than 1000 in this operation period, and we diagnosed not only the hardware performance but the tuning software by analyzing the relations between beam current, loss monitor signals and RF cavity voltages. This paper will give the outline of the monitoring system, and will present typical examples of signal and diagnoses.
	Slides TUAL03 [25.716 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUAL03
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TUPG26	COSY BPM Electronics Upgrade	electronics, hadron, synchrotron, experiment	383
	C. Böhme, A.J. Halama, V. Kamerdzhiev FZJ, Jülich, Germany
	The Cooler Synchrotron COSY delivers proton and deuteron beams to the users since the early 90s. The experiments are carried out using the circulating beam as well as the beams extracted from the ring and delivered by three beamlines. The original BPM system still operational in the ring does not fulfill the requirements for new experiments. It utilizes cylindrical and shoe-box type diagonally cut capacitive pick-ups. The most signal processing is done the analog way. Additionally to its age and the increasing failure rate, the analog processing introduces large drifts in e.g. the offset, which regularly require a significant effort for manual calibration. Even then the drifts render it impossible to match the requirements of the planned JEDI experiment, which is an orbit with a maximum of 100 um RMS deviation. Therefore an upgrade of the readout electronics was decided. The decision process is described, the implications listed and the current status is reported.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUPG26
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TUPG30	Testing the Untestable: A Realistic Vision of Fearlessly Testing (Almost) Every Single Accelerator Component Without Beam and Continuous Deployment Thereof	software, operation, simulation, luminosity	399
	A. Calia, K. Fuchsberger, M. Hostettler CERN, Geneva, Switzerland
	Whenever a bug of some piece of software or hardware stops beam operation, loss of time is rarely negligible and the cost (either in lost luminosity or real financial one) might be significant. Optimization of the accelerator availability is a strong motivation to avoid such kind of issues. Still, even at large accelerator labs like CERN, release cycles of many accelerator components are managed in a "deploy and pray" manner. In this paper we will give a short general overview on testing strategies used commonly in software development projects and illustrate their application on accelerator components, both hardware and software. Finally, several examples of CERN systems will be shown on which these techniques were or will be applied (LHC Beam-Based Feedbacks and LHC Luminosity Server) and describe why it is worth doing so.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUPG30
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TUPG41	Development of High Resolution Beam Current Measurement System for COSY-Jülich	experiment, software, Ethernet, instrumentation	434
	Y. Valdau, S. Mikirtytchiants, S. Trusov FZJ, Jülich, Germany L. Eltcov Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, Bonn, Germany P. Wuestner Forschungszentrum Jülich, Jülich, Germany
	An experiment to test the Time Reversal Invariance at COSY (TRIC) is under the preparation at the Forschungszentrum Jülich. This experiment requires a precise measurement of the beam life time. A high resolution beam current measurement system, based on Fast Current Transformer (FCT), is under the development for the COSY storage ring. The signal from the FCT is measured by a modern lock-in amplifier which is read out by a dedicated DAQ over an Ethernet. Additional instruments, equipped with Ethernet interface, can be implemented into this DAQ and read out synchronously with other systems necessary for the TRIC experiment. Relative resolution of 10^-4, sufficient for the TRIC experiment, has been demonstrated at the test bench in the laboratory. Preliminary results of the system commissioning at COSY will be presented.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUPG41
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TUPG79	LANSCE Isotope Production Facility Emittance Measurement System	emittance, controls, diagnostics, isotope-production	548
	J.D. Sedillo, D. Baros, J.F. O'Hara, L. Rybarcyk, R.A. Valicenti, H.A. Watkins LANL, Los Alamos, New Mexico, USA
	A new beam diagnostic system for emittance measurement is under development for the Isotope Production Facility (IPF) beamline located at the Los Alamos Neutron Science Center (LANSCE). This system consists of two axes; each composed of a harp and slit actuation system for measuring the emittance of 41, 72, and 100-MeV proton beam energies. System design details and project status will be discussed with installation and commissioning of this system scheduled to conclude by February 2017.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUPG79
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WEAL03	Diagnostic Data Acquisition Strategies at FRIB	diagnostics, FPGA, software, data-acquisition	572
	S. Cogan, S.M. Lidia, R.C. Webber FRIB, East Lansing, USA
	Funding: This material is based upon work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661, the State of Michigan and Michigan State University. Strategies for data acquisition and processing will be discussed in the context of the Facility for Rare Isotope Beams (FRIB). Design decisions include selecting and designing electronics hardware, data acquisition cards, firmware design, and how to integrate with EPICS control system. With over 300 diagnostic devices and 16 unique types of devices, timing for synchronous data acquisition is important. Strategies to accelerate development as well as reduce maintenance requirements will be dis-cussed, including using common hardware and firmware whenever possible, and defining a common data report-ing structure for use by most devices. MicroTCA.4 plat-form is used to integrate data acquisition cards, distribute timing information, and machine protection signals.
	Slides WEAL03 [7.392 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-WEAL03
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WEPG12	A Versatile BPM Signal Processing System Based on the Xilinx Zynq SoC	electron, ion, software, electronics	646
	R.L. Hulsart, P. Cerniglia, N.M. Day, R.J. Michnoff, Z. Sorrell BNL, Upton, Long Island, New York, USA
	Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy. A new BPM electronics module (V301) has been developed at BNL that uses the latest System on a Chip (SoC) technologies to provide a system with better performance and lower cost per module than before. The future of RHIC ion runs will include new RF conditions as well as a wider dynamic range in intensity. Plans for the use of electron beams, both in ion cooling applications and a future electron-ion collider, have also driven this architecture toward a highly configurable approach. The RF input section has been designed such that jumpers can be changed to allow a single board to provide ion or electron optimized analog filtering. These channels are sampled with four 14-bit 400MSPS A/D converters. The SoC's ARM processor allows a Linux OS to run directly on the module along with a controls system software interface. The FPGA is used to process samples from the ADCs and perform position calculations. A suite of peripherals including dual Ethernet ports, uSD storage, and an interface to the RHIC timing system are also included. A second revision board which includes ultra-low jitter ADC clock synthesis and distribution and improved power supplies is currently being commissioned.
	Poster WEPG12 [4.839 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-WEPG12
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WEPG15	A FPGA Based Common Platform for LCLS2 Beam Diagnostics and Controls	network, timing, FPGA, controls	650
	J.C. Frisch, R. Claus, J.M. D'Ewart, G. Haller, R.T. Herbst, B. Hong, U. Legat, L. Ma, J.J. Olsen, B.A. Reese, R. Ruckman, L. Sapozhnikov, S.R. Smith, T. Straumann, D. Van Winkle, J.A. Vásquez, M. Weaver, E. Williams, C. Xu, A. Young SLAC, Menlo Park, California, USA
	Funding: work supported by Department of Energy contract DE-AC02-76SF00515 The LCLS2 is a CW superconducting LINAC driven X-ray free electron laser under construction at SLAC. The high beam rate of up to 1MHz, and ability to deliver electrons to multiple undulators and beam dumps, results in a beam diagnostics and control system that requires real time data processing in programmable logic. The SLAC Technical Innovation Directorate has developed a common hardware and firmware platform for beam instrumentation based on the ATCA crate format. The FPGAs are located on ATCA carrier cards, front ends and A-D / D-A are on AMC cards that are connected to the carriers by high speed serial JESD links. External communication is through the ATCA backplane, with interlocks and low frequency components on the ATCA RTM. This platform is used for a variety of high speed diagnostics including stripline and cavity BPMs.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-WEPG15
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WEPG17	BATCH APPLICATIONS OF DIGITAL BPM PROCESSORS FROM THE SINAP	cavity, FPGA, interface, FEL	658
	L.W. Lai, F.Z. Chen, Z.C. Chen, Y.B. Leng, Y.B. Yan, W.M. Zhou SSRF, Shanghai, People's Republic of China J. Chen SINAP, Shanghai, People's Republic of China
	Funding: Work supported by National Natural Science Foundation (No.11305253, 11575282) During the past several years a digital BPM (DBPM) processor has been developed at the SINAP. After continuous development and optimization, the processor has been finalized and has come to batch application on the signal processing of cavity BPMs and stripline BPMs at the Dalian Coherent Light Source (DCLS) and the Shanghai Soft X-ray FEL (SXFEL). Tests have been done to evaluate the performances, such as the noise level, the SNR and the cross talk. The system resolution of the cavity and stripline BPMs can achieve 1um and 10um respectively. The test results on the Shanghai Deep-Ultra-Violet (SDUV) and the DCLS will be introduced.
	Poster WEPG17 [6.500 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-WEPG17
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Paper

Title

Other Keywords

Page

MOBL04

LHC Online Chromaticity Measurement - Experience After One Year of Operation

injection, operation, controls, feedback

20

K. Fuchsberger, G.H. Hemelsoet
CERN, Geneva, Switzerland

Hardware and infrastructural requirements to measure chromaticity in the LHC were available since the beginning. However, the calculation of the chromaticity was mostly made offline. This gap was closed in 2015 by the development of a dedicated application for the LHC control room, which takes the measured data and produces estimates for the chromaticity values immediately online and allows to correct chroma and tune accordingly. This tool proved to be essential during commissioning as well as during every injection-phase of the LHC. It became particularly important during the intensity ramp-up with 25ns where good control of the chromaticity became crucial at injection. This paper describes the concepts and algorithms behind this tool, the experience gained as well as further plans for improvements.

Slides MOBL04 [7.414 MB]

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOBL04

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MOPG06

First Beam Tests of the APS MBA Upgrade Orbit Feedback Controller

feedback, controls, power-supply, storage-ring

39

N. Sereno, N.D. Arnold, A.R. Brill, H. Bui, J. Carwardine, G. Decker, B. Deriy, L. Emery, R.I. Farnsworth, T. Fors, R.T. Keane, F. Lenkszus, R.M. Lill, D.R. Paskvan, A.F. Pietryla, H. Shang, S.E. Shoaf, S. Veseli, J. Wang, S. Xu, B.X. Yang
ANL, Argonne, Illinois, USA

Funding: Work supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357
The new orbit feedback system required for the APS multi-bend acromat (MBA) ring must meet challenging beam stability requirements. The AC stability requirement is to correct rms beam motion to 10 \% the rms beam size at the insertion device source points from 0.01 to 1000 Hz. The vertical plane represents the biggest challenge for AC stability which is required to be 400 nm rms for a 4 micron vertical beam size. In addition long term drift over a period of 7 days is required to be 1 micron or less at insertion device BPMs and 2 microns for arc bpms. We present test results of the MBA prototype orbit feedback controller (FBC) in the APS storage ring. In this test, four insertion device BPMs were configured to send data to the FBC for processing into four fast corrector setpoints. The configuration of four bpms and four fast correctors creates a 4-bump and the configuration of fast correctors is similar to what will be implemented in the MBA ring. We report on performance benefits of increasing the sampling rate by a factor of 15 to 22.6 kHz over the existing APS orbit feedback system, limitations due to existing storage ring hardware and MBA orbit feedback design.

Poster MOPG06 [6.490 MB]

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG06

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MOPG49

A Precise Pulsed Current Source for Absolute Calibration of Current Measurement Systems With No DC Response

operation, power-supply, impedance, instrumentation

165

M. Krupa, M. Gąsior
CERN, Geneva, Switzerland
M. Krupa
TUL-DMCS, Łódź, Poland

Absolute calibration of systems with no DC response requires pulsed calibration circuits. This paper presents a precise pulsed current source designed primarily for remote calibration of a beam intensity measurement system. However, due to its simple and flexible design, it might also prove interesting for other applications. The circuit was designed to drive a load of 10 Ω with current pulses lasting a few hundred microseconds with an amplitude of 1 A and precision in the order of 0.01%. The circuit is equipped with a half-bridge for precise determination of the absolute output current using the 0 V method. This paper presents the circuit topology and discusses in detail the choice of the critical components along with their influence on the final achieved accuracy. The performance of the built prototype of the current source is presented with laboratory measurements.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG49

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MOPG57

Temperature and Humidity Drift Characterization of Passive RF Components for a Two-Tone Calibration Method

detector, laser, injection, radio-frequency

194

E. Janas, K. Czuba
Warsaw University of Technology, Institute of Electronic Systems, Warsaw, Poland
E. Janas, U. Mavrič, H. Schlarb
DESY, Hamburg, Germany

Femtosecond-level synchronization is required for various systems in modern accelerators especially in fourth generation light sources. In those high precision synchronization systems the phase detection accuracy is crucial. However, synchronization to a low noise electrical source is corrupted by a phase detection error originating in the electrical components and connections due to thermal and humidity-related drifts. In future, we plan to implement calibration methods to mitigate these drifts. Those methods require a calibration signal injection, called second tone, into the system. Intrinsically, the injection circuit remains uncalibrated therefore it needs to be drift-free. We performed drift characterization of a set of RF components, which could serve for implementation of a signal injection circuit, namely selected types of couplers and splitters. We describe the measurement setup and discuss the challenges associated with this kind of measurement. Finally, we provide a qualitative and quantitative evaluation of the measurements results.

Poster MOPG57 [2.823 MB]

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG57

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TUAL03

Beam Loss and Abort Diagnostics during SuperKEKB Phase-I Operation

injection, kicker, timing, cavity

282

H. Ikeda, J.W. Flanagan, H. Fukuma, T. Furuya, M. Tobiyama
KEK, Ibaraki, Japan

Beam commissioning of SuperKEKB Phase-I started in Feb., 2016. In order to protect the hardware components of the accelerator against unstable Ampere class beams, the controlled beam abort system was upgraded. Because of the higher beam intensity and shorter beam lifetime than at the original KEKB, a beam abort monitor system is important for machine tuning and the safety of the components. The system collected the data of all aborts of more than 1000 in this operation period, and we diagnosed not only the hardware performance but the tuning software by analyzing the relations between beam current, loss monitor signals and RF cavity voltages. This paper will give the outline of the monitoring system, and will present typical examples of signal and diagnoses.

Slides TUAL03 [25.716 MB]

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUAL03

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TUPG26

COSY BPM Electronics Upgrade

electronics, hadron, synchrotron, experiment

383

C. Böhme, A.J. Halama, V. Kamerdzhiev
FZJ, Jülich, Germany

The Cooler Synchrotron COSY delivers proton and deuteron beams to the users since the early 90s. The experiments are carried out using the circulating beam as well as the beams extracted from the ring and delivered by three beamlines. The original BPM system still operational in the ring does not fulfill the requirements for new experiments. It utilizes cylindrical and shoe-box type diagonally cut capacitive pick-ups. The most signal processing is done the analog way. Additionally to its age and the increasing failure rate, the analog processing introduces large drifts in e.g. the offset, which regularly require a significant effort for manual calibration. Even then the drifts render it impossible to match the requirements of the planned JEDI experiment, which is an orbit with a maximum of 100 um RMS deviation. Therefore an upgrade of the readout electronics was decided. The decision process is described, the implications listed and the current status is reported.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUPG26

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TUPG30

Testing the Untestable: A Realistic Vision of Fearlessly Testing (Almost) Every Single Accelerator Component Without Beam and Continuous Deployment Thereof

software, operation, simulation, luminosity

399

A. Calia, K. Fuchsberger, M. Hostettler
CERN, Geneva, Switzerland

Whenever a bug of some piece of software or hardware stops beam operation, loss of time is rarely negligible and the cost (either in lost luminosity or real financial one) might be significant. Optimization of the accelerator availability is a strong motivation to avoid such kind of issues. Still, even at large accelerator labs like CERN, release cycles of many accelerator components are managed in a "deploy and pray" manner. In this paper we will give a short general overview on testing strategies used commonly in software development projects and illustrate their application on accelerator components, both hardware and software. Finally, several examples of CERN systems will be shown on which these techniques were or will be applied (LHC Beam-Based Feedbacks and LHC Luminosity Server) and describe why it is worth doing so.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUPG30

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TUPG41

Development of High Resolution Beam Current Measurement System for COSY-Jülich

experiment, software, Ethernet, instrumentation

434

Y. Valdau, S. Mikirtytchiants, S. Trusov
FZJ, Jülich, Germany
L. Eltcov
Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, Bonn, Germany
P. Wuestner
Forschungszentrum Jülich, Jülich, Germany

An experiment to test the Time Reversal Invariance at COSY (TRIC) is under the preparation at the Forschungszentrum Jülich. This experiment requires a precise measurement of the beam life time. A high resolution beam current measurement system, based on Fast Current Transformer (FCT), is under the development for the COSY storage ring. The signal from the FCT is measured by a modern lock-in amplifier which is read out by a dedicated DAQ over an Ethernet. Additional instruments, equipped with Ethernet interface, can be implemented into this DAQ and read out synchronously with other systems necessary for the TRIC experiment. Relative resolution of 10^-4, sufficient for the TRIC experiment, has been demonstrated at the test bench in the laboratory. Preliminary results of the system commissioning at COSY will be presented.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUPG41

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TUPG79

LANSCE Isotope Production Facility Emittance Measurement System

emittance, controls, diagnostics, isotope-production

548

J.D. Sedillo, D. Baros, J.F. O'Hara, L. Rybarcyk, R.A. Valicenti, H.A. Watkins
LANL, Los Alamos, New Mexico, USA

A new beam diagnostic system for emittance measurement is under development for the Isotope Production Facility (IPF) beamline located at the Los Alamos Neutron Science Center (LANSCE). This system consists of two axes; each composed of a harp and slit actuation system for measuring the emittance of 41, 72, and 100-MeV proton beam energies. System design details and project status will be discussed with installation and commissioning of this system scheduled to conclude by February 2017.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUPG79

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WEAL03

Diagnostic Data Acquisition Strategies at FRIB

diagnostics, FPGA, software, data-acquisition

572

S. Cogan, S.M. Lidia, R.C. Webber
FRIB, East Lansing, USA

Funding: This material is based upon work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661, the State of Michigan and Michigan State University.
Strategies for data acquisition and processing will be discussed in the context of the Facility for Rare Isotope Beams (FRIB). Design decisions include selecting and designing electronics hardware, data acquisition cards, firmware design, and how to integrate with EPICS control system. With over 300 diagnostic devices and 16 unique types of devices, timing for synchronous data acquisition is important. Strategies to accelerate development as well as reduce maintenance requirements will be dis-cussed, including using common hardware and firmware whenever possible, and defining a common data report-ing structure for use by most devices. MicroTCA.4 plat-form is used to integrate data acquisition cards, distribute timing information, and machine protection signals.

Slides WEAL03 [7.392 MB]

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-WEAL03

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WEPG12

A Versatile BPM Signal Processing System Based on the Xilinx Zynq SoC

electron, ion, software, electronics

646

R.L. Hulsart, P. Cerniglia, N.M. Day, R.J. Michnoff, Z. Sorrell
BNL, Upton, Long Island, New York, USA

Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy.
A new BPM electronics module (V301) has been developed at BNL that uses the latest System on a Chip (SoC) technologies to provide a system with better performance and lower cost per module than before. The future of RHIC ion runs will include new RF conditions as well as a wider dynamic range in intensity. Plans for the use of electron beams, both in ion cooling applications and a future electron-ion collider, have also driven this architecture toward a highly configurable approach. The RF input section has been designed such that jumpers can be changed to allow a single board to provide ion or electron optimized analog filtering. These channels are sampled with four 14-bit 400MSPS A/D converters. The SoC's ARM processor allows a Linux OS to run directly on the module along with a controls system software interface. The FPGA is used to process samples from the ADCs and perform position calculations. A suite of peripherals including dual Ethernet ports, uSD storage, and an interface to the RHIC timing system are also included. A second revision board which includes ultra-low jitter ADC clock synthesis and distribution and improved power supplies is currently being commissioned.

Poster WEPG12 [4.839 MB]

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reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-WEPG12

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WEPG15

A FPGA Based Common Platform for LCLS2 Beam Diagnostics and Controls

network, timing, FPGA, controls

650

J.C. Frisch, R. Claus, J.M. D'Ewart, G. Haller, R.T. Herbst, B. Hong, U. Legat, L. Ma, J.J. Olsen, B.A. Reese, R. Ruckman, L. Sapozhnikov, S.R. Smith, T. Straumann, D. Van Winkle, J.A. Vásquez, M. Weaver, E. Williams, C. Xu, A. Young
SLAC, Menlo Park, California, USA

Funding: work supported by Department of Energy contract DE-AC02-76SF00515
The LCLS2 is a CW superconducting LINAC driven X-ray free electron laser under construction at SLAC. The high beam rate of up to 1MHz, and ability to deliver electrons to multiple undulators and beam dumps, results in a beam diagnostics and control system that requires real time data processing in programmable logic. The SLAC Technical Innovation Directorate has developed a common hardware and firmware platform for beam instrumentation based on the ATCA crate format. The FPGAs are located on ATCA carrier cards, front ends and A-D / D-A are on AMC cards that are connected to the carriers by high speed serial JESD links. External communication is through the ATCA backplane, with interlocks and low frequency components on the ATCA RTM. This platform is used for a variety of high speed diagnostics including stripline and cavity BPMs.

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reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-WEPG15

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WEPG17

BATCH APPLICATIONS OF DIGITAL BPM PROCESSORS FROM THE SINAP

cavity, FPGA, interface, FEL

658

L.W. Lai, F.Z. Chen, Z.C. Chen, Y.B. Leng, Y.B. Yan, W.M. Zhou
SSRF, Shanghai, People's Republic of China
J. Chen
SINAP, Shanghai, People's Republic of China

Funding: Work supported by National Natural Science Foundation (No.11305253, 11575282)
During the past several years a digital BPM (DBPM) processor has been developed at the SINAP. After continuous development and optimization, the processor has been finalized and has come to batch application on the signal processing of cavity BPMs and stripline BPMs at the Dalian Coherent Light Source (DCLS) and the Shanghai Soft X-ray FEL (SXFEL). Tests have been done to evaluate the performances, such as the noise level, the SNR and the cross talk. The system resolution of the cavity and stripline BPMs can achieve 1um and 10um respectively. The test results on the Shanghai Deep-Ultra-Violet (SDUV) and the DCLS will be introduced.

Poster WEPG17 [6.500 MB]

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reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-WEPG17

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