ICALEPCS2015 - List of Keywords (electronics)

Paper	Title	Other Keywords	Page
MOPGF038	Design and Commissioning Results of MicroTCA Stripline BPM System	linac, data-acquisition, software, hardware	180
	S. L. Hoobler, R.S. Larsen, H. Loos, J.J. Olsen, S.R. Smith, T. Straumann, C. Xu, A. Young SLAC, Menlo Park, California, USA
	The Linac Coherent Light Source (LCLS) is a free electron laser (FEL) facility operating at the SLAC National Accelerator Laboratory (SLAC). A stripline beam position monitor (BPM) system was developed at SLAC [1] to meet the performance requirements necessary to provide high-quality stable beams for LCLS. This design has been modified to achieve improved position resolution in a more compact form factor. Prototype installations of this system have been operating in the LCLS LINAC and tested at the Pohang Accelerator Laboratory (PAL). Production systems are deployed at the new PAL XFEL facility and at the SPEAR storage ring at the Stanford Synchrotron Radiation Lightsource at SLAC. This paper presents the design and commissioning results of this system.
	Poster MOPGF038 [0.874 MB]
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MOPGF112	Measurements, Alarms and Interlocks in the Vacuum Control System of the LHC	vacuum, radiation, interlocks, controls	338
	G. Pigny, F. Antoniotti, J-P. Boivin, N. Chatzigeorgiou, J. Gama, P. Gomes, P. Krakówski, H.F. Pereira CERN, Geneva, Switzerland
	In the LHC beam pipes and cryostats, the pressure measurement covers a wide range, from 1500 mbar down to 10^-11 mbar and even lower. If vacuum deteriorates, alarm signals are generated and sent to other systems, e.g. cryogenics, accelerating cavities, kicker magnets, and beam interlock. In addition, an unacceptable pressure rise in beam pipes generates interlocks to close the adjacent sector valves, thus isolating the sector, so that the pressure rise does not propagate. This paper describes the measurement chains, the alarms and interlocks logic used in the vacuum control system of the LHC. We analyze the possible signal degradation caused by ionizing radiation or due to cable length, shielding and grounding. The weaknesses of the existing vacuum measurement system are pointed out, and a prospective for improvement of the conditioning electronics is proposed. During the first LHC long shut down, several corrections were applied; the results of the tests after commissioning are also presented.
	Poster MOPGF112 [1.749 MB]
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MOPGF138	Overview and Design Status of the Fast Beam Interlock System at ESS	interface, FPGA, operation, linac	409
	A. Monera Martinez, R. Andersson, A. Nordt, M. Zaera-Sanz ESS, Lund, Sweden C. Hilbes ZHAW, Winterthur, Switzerland
	The ESS, consisting of a pulsed proton linear accelerator, a rotating spallation target designed for an average beam power of up to 5 MW, and a suite of neutron instruments, requires a large variety of instrumentation, both for controlling as well as protecting the different hardware systems and the beam. The ESS beam power is unprecedented and an uncontrolled release could lead to serious damage of equipment installed along the tunnel and target station within only a few microseconds. Major failures of certain equipment will result in long repair times, because it is delicate and difficult to access and sometimes located in high radiation areas. To optimize the operational efficiency of the facility, accidents should be avoided and interruptions should be rare and limited to a short time. Hence, a sophisticated machine protection system is required. In order to stop efficiently the proton beam production in case of failures, a Fast Beam Interlock (FBI) system with a targeted reaction time of less than 5 microseconds and very high dependability is being designed. The design approach for this FPGA-based interlock system will be presented as well as the status on prototyping.
	Poster MOPGF138 [2.416 MB]
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TUC3O07	Safety Integrity Level (SIL) Verification for SLAC Radiation Safety Systems	controls, PLC, radiation, operation	561
	F. Tao, E. Carrone, J.M. Murphy, K.T. Turner SLAC, Menlo Park, California, USA
	SIL is a key concept in functional safety standards: it is a performance measure on how reliable is a safety system performing a particular safety function. In the system design stage, SIL verification must be performed to prove that the SIL achieved meets/exceeds the SIL assigned during risk assessment, to comply with standards. Unlike industrial applications, where safety systems are usually composed of certified devices or devices with long usage history, safety systems in large physics laboratories are less standardized and more complex in terms of system architecture and devices used. In addition, custom designed electronics are often employed, with limited reliability information. Verifying SIL for these systems requires in-depth knowledge of reliability evaluation. In this paper, it is demonstrated how to determine SIL using SLAC radiation safety systems (Personnel Protection System (PPS) and Beam Containment System (BCS)) as examples. PPS utilizes commercial safety rated devices, while BCS also contains customized electronics. Choice of standards, methods of evaluation, reliability data gathering process (both from industry and from hardware development) are also discussed.
	Slides TUC3O07 [1.758 MB]
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WEPGF001	The Instrument Control Electronics of the ESPRESSO Spectrograph @VLT	controls, PLC, software, interface	689
	V. Baldini, G. Calderone, R. Cirami, I. Coretti, S. Cristiani, P. Di Marcantonio, P. Santin INAF-OAT, Trieste, Italy D. Mégevand Université de Genève, Observatoire Astronomique, Versoix, Switzerland F. Zerbi INAF-Osservatorio Astronomico di Brera, Merate, Italy
	ESPRESSO, the Echelle SPectrograph for Rocky Exoplanet and Stable Spectroscopic Observations, is a super-stable Optical High Resolution Spectrograph for the Combined Coudé focus of the VLT. It can be operated either as a single telescope instrument or as a multi-telescope facility, by collecting the light of up to four UTs. From the Nasmyth focus of each UT the light is fed, through a set of optical elements (Coudé Train), to the Front End Unit which performs several functions, as image and pupil stabilization, inclusion of calibration light and refocusing. The light is then conveyed into the spectrograph fibers. The whole process is handled by several electronically controlled devices. About 40 motorized stages, more than 90 sensors and several calibration lamps are controlled by the Instrument Control Electronics (ICE) and Software (ICS). The technology employed for the control of the ESPRESSO subsystems is PLC-based, with a distributed layout close to the functions to control. This paper illustrates the current status of the ESPRESSO ICE, showing the control architecture, the electrical cabinets organization and the experiences gained during the development and assembly phase.
	Poster WEPGF001 [5.729 MB]
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WEPGF081	Em# Platform: Towards a Hardware Interface Standardization Scheme	controls, FPGA, interface, hardware	885
	O. Matilla, J.A. Avila-Abellan, M. Broseta, G. Cuní, D. Fernández-Carreiras, A. Ruz, J. Salabert, X. Serra-Gallifa ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
	Low current measurements developments have been pointed out as strategic for ALBA synchrotron. From the first day of operation of the seven Beamlines currently in operation ALBA Em electrometer this has been successfully used. Today, the two new beamlines of Phase 2 that are being constructed and the new end stations have required specification changes in terms of increased accuracy, capability of synchronization, timestamping, management of large buffers and high performance closed-loop implementation. The scheme of full custom hardware design has been abandoned. ALBA Em# project approach has been based in the selection of industry standard interfaces: FMC boards design for custom needs, FMC carrier over PCIe using SPEC board from CERN under OHWR license, and Single Board Computer using PCIe to implement interfaces with the control system. This Paper describes the new design of the Electrometers at Alba, suited for the newer requirements, more flexible, performing and maintainable, which profits from the know-how acquired with previous versions and suits the new data acquisition paradigm emerged with the standardization of quick continuous scans and data acquisition.
	Poster WEPGF081 [0.306 MB]
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WEPGF084	New Digitisers for Position Sensitive 3He Proportional Counters	detector, neutron, 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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THHA3O01	The Evolution of the ALICE Detector Control System	detector, operation, controls, experiment	1087
	P.Ch. Chochula, A. Augustinus, P.M. Bond, A.N. Kurepin, M. Lechman, O. Pinazza CERN, Geneva, Switzerland A.N. Kurepin RAS/INR, Moscow, Russia O. Pinazza INFN-Bologna, Bologna, Italy
	The ALICE Detector Control System has provided its service since 2007. Its operation in the past years proved that the initial design of the system fulfilled all expectations and allowed the evolution of the detectors and operational requirements to follow. In order to minimize the impact of the human factor, many procedures have been optimized and new tools have been introduced in order to allow the operator to supervise about 1 000 000 parameters from a single console. In parallel with the preparation for new runs after the LHC shutdown a prototyping for system extensions which shall be ready in 2018 has started. New detectors will require new approaches to their control and configuration. The conditions data, currently collected after each run, will be provided continuously to a farm containing 100 000 CPU cores and tens of PB of storage. In this paper the DCS design, deployed technologies, and experience gained during the 7 years of operation will be described and the initial assumptions with the current setup will be compared. The current status of the developments for the upgraded system, which will be put into operation in less than 3 years from now, will also be described.
	Slides THHA3O01 [4.556 MB]
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THHB2O03	The Global Trigger with Online Vertex Fitting for Low Energy Neutrino Research	experiment, detector, simulation, photon	1107
	G.H. Gong, H. Li, T. Xue Tsinghua University, Beijing, People's Republic of China H. Gong TUB, Beijing, People's Republic of China
	Neutrino research is of great importance for particle physics, astrophysics and cosmology, the JUNO (Jiangmen Underground Neutrino Observatory) is a multi-purpose neutrino experiment for neutrino mass ordering determination and precision measurement of neutrino mixing parameters. A brand new global trigger scheme with online vertex fitting has been proposed, aiming at the ultra-low anti-neutrino energy threshold as down to 0.1MeV which is essential for the study of solar neutrino and elastic scattering of neutrinos on supernova burst. With this scheme, the TOF (time of flight) difference of photons fly through the liquid media from the interaction point to the surface of central detector can be corrected online with real time, the width of trigger window to cover the whole period of a specific neutrino generated photons can be significantly reduced which lessen the integrated dark noise introduced from the large amount of PMT devices hence a lower energy threshold can be achieved. The scheme is compatible, flexible and easy to implement, it can effectively extend the physics potential of the JUNO for low energy neutrino research topics.
	Slides THHB2O03 [4.257 MB]
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Paper

Title

Other Keywords

Page

MOPGF038

Design and Commissioning Results of MicroTCA Stripline BPM System

linac, data-acquisition, software, hardware

180

S. L. Hoobler, R.S. Larsen, H. Loos, J.J. Olsen, S.R. Smith, T. Straumann, C. Xu, A. Young
SLAC, Menlo Park, California, USA

The Linac Coherent Light Source (LCLS) is a free electron laser (FEL) facility operating at the SLAC National Accelerator Laboratory (SLAC). A stripline beam position monitor (BPM) system was developed at SLAC [1] to meet the performance requirements necessary to provide high-quality stable beams for LCLS. This design has been modified to achieve improved position resolution in a more compact form factor. Prototype installations of this system have been operating in the LCLS LINAC and tested at the Pohang Accelerator Laboratory (PAL). Production systems are deployed at the new PAL XFEL facility and at the SPEAR storage ring at the Stanford Synchrotron Radiation Lightsource at SLAC. This paper presents the design and commissioning results of this system.

Poster MOPGF038 [0.874 MB]

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MOPGF112

Measurements, Alarms and Interlocks in the Vacuum Control System of the LHC

vacuum, radiation, interlocks, controls

338

G. Pigny, F. Antoniotti, J-P. Boivin, N. Chatzigeorgiou, J. Gama, P. Gomes, P. Krakówski, H.F. Pereira
CERN, Geneva, Switzerland

In the LHC beam pipes and cryostats, the pressure measurement covers a wide range, from 1500 mbar down to 10^-11 mbar and even lower. If vacuum deteriorates, alarm signals are generated and sent to other systems, e.g. cryogenics, accelerating cavities, kicker magnets, and beam interlock. In addition, an unacceptable pressure rise in beam pipes generates interlocks to close the adjacent sector valves, thus isolating the sector, so that the pressure rise does not propagate. This paper describes the measurement chains, the alarms and interlocks logic used in the vacuum control system of the LHC. We analyze the possible signal degradation caused by ionizing radiation or due to cable length, shielding and grounding. The weaknesses of the existing vacuum measurement system are pointed out, and a prospective for improvement of the conditioning electronics is proposed. During the first LHC long shut down, several corrections were applied; the results of the tests after commissioning are also presented.

Poster MOPGF112 [1.749 MB]

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MOPGF138

Overview and Design Status of the Fast Beam Interlock System at ESS

interface, FPGA, operation, linac

409

A. Monera Martinez, R. Andersson, A. Nordt, M. Zaera-Sanz
ESS, Lund, Sweden
C. Hilbes
ZHAW, Winterthur, Switzerland

The ESS, consisting of a pulsed proton linear accelerator, a rotating spallation target designed for an average beam power of up to 5 MW, and a suite of neutron instruments, requires a large variety of instrumentation, both for controlling as well as protecting the different hardware systems and the beam. The ESS beam power is unprecedented and an uncontrolled release could lead to serious damage of equipment installed along the tunnel and target station within only a few microseconds. Major failures of certain equipment will result in long repair times, because it is delicate and difficult to access and sometimes located in high radiation areas. To optimize the operational efficiency of the facility, accidents should be avoided and interruptions should be rare and limited to a short time. Hence, a sophisticated machine protection system is required. In order to stop efficiently the proton beam production in case of failures, a Fast Beam Interlock (FBI) system with a targeted reaction time of less than 5 microseconds and very high dependability is being designed. The design approach for this FPGA-based interlock system will be presented as well as the status on prototyping.

Poster MOPGF138 [2.416 MB]

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TUC3O07

Safety Integrity Level (SIL) Verification for SLAC Radiation Safety Systems

controls, PLC, radiation, operation

561

F. Tao, E. Carrone, J.M. Murphy, K.T. Turner
SLAC, Menlo Park, California, USA

SIL is a key concept in functional safety standards: it is a performance measure on how reliable is a safety system performing a particular safety function. In the system design stage, SIL verification must be performed to prove that the SIL achieved meets/exceeds the SIL assigned during risk assessment, to comply with standards. Unlike industrial applications, where safety systems are usually composed of certified devices or devices with long usage history, safety systems in large physics laboratories are less standardized and more complex in terms of system architecture and devices used. In addition, custom designed electronics are often employed, with limited reliability information. Verifying SIL for these systems requires in-depth knowledge of reliability evaluation. In this paper, it is demonstrated how to determine SIL using SLAC radiation safety systems (Personnel Protection System (PPS) and Beam Containment System (BCS)) as examples. PPS utilizes commercial safety rated devices, while BCS also contains customized electronics. Choice of standards, methods of evaluation, reliability data gathering process (both from industry and from hardware development) are also discussed.

Slides TUC3O07 [1.758 MB]

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WEPGF001

The Instrument Control Electronics of the ESPRESSO Spectrograph @VLT

controls, PLC, software, interface

689

V. Baldini, G. Calderone, R. Cirami, I. Coretti, S. Cristiani, P. Di Marcantonio, P. Santin
INAF-OAT, Trieste, Italy
D. Mégevand
Université de Genève, Observatoire Astronomique, Versoix, Switzerland
F. Zerbi
INAF-Osservatorio Astronomico di Brera, Merate, Italy

ESPRESSO, the Echelle SPectrograph for Rocky Exoplanet and Stable Spectroscopic Observations, is a super-stable Optical High Resolution Spectrograph for the Combined Coudé focus of the VLT. It can be operated either as a single telescope instrument or as a multi-telescope facility, by collecting the light of up to four UTs. From the Nasmyth focus of each UT the light is fed, through a set of optical elements (Coudé Train), to the Front End Unit which performs several functions, as image and pupil stabilization, inclusion of calibration light and refocusing. The light is then conveyed into the spectrograph fibers. The whole process is handled by several electronically controlled devices. About 40 motorized stages, more than 90 sensors and several calibration lamps are controlled by the Instrument Control Electronics (ICE) and Software (ICS). The technology employed for the control of the ESPRESSO subsystems is PLC-based, with a distributed layout close to the functions to control. This paper illustrates the current status of the ESPRESSO ICE, showing the control architecture, the electrical cabinets organization and the experiences gained during the development and assembly phase.

Poster WEPGF001 [5.729 MB]

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WEPGF081

Em# Platform: Towards a Hardware Interface Standardization Scheme

controls, FPGA, interface, hardware

885

O. Matilla, J.A. Avila-Abellan, M. Broseta, G. Cuní, D. Fernández-Carreiras, A. Ruz, J. Salabert, X. Serra-Gallifa
ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain

Low current measurements developments have been pointed out as strategic for ALBA synchrotron. From the first day of operation of the seven Beamlines currently in operation ALBA Em electrometer this has been successfully used. Today, the two new beamlines of Phase 2 that are being constructed and the new end stations have required specification changes in terms of increased accuracy, capability of synchronization, timestamping, management of large buffers and high performance closed-loop implementation. The scheme of full custom hardware design has been abandoned. ALBA Em# project approach has been based in the selection of industry standard interfaces: FMC boards design for custom needs, FMC carrier over PCIe using SPEC board from CERN under OHWR license, and Single Board Computer using PCIe to implement interfaces with the control system. This Paper describes the new design of the Electrometers at Alba, suited for the newer requirements, more flexible, performing and maintainable, which profits from the know-how acquired with previous versions and suits the new data acquisition paradigm emerged with the standardization of quick continuous scans and data acquisition.

Poster WEPGF081 [0.306 MB]

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WEPGF084

New Digitisers for Position Sensitive 3He Proportional Counters

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

THHA3O01

The Evolution of the ALICE Detector Control System

detector, operation, controls, experiment

1087

P.Ch. Chochula, A. Augustinus, P.M. Bond, A.N. Kurepin, M. Lechman, O. Pinazza
CERN, Geneva, Switzerland
A.N. Kurepin
RAS/INR, Moscow, Russia
O. Pinazza
INFN-Bologna, Bologna, Italy

The ALICE Detector Control System has provided its service since 2007. Its operation in the past years proved that the initial design of the system fulfilled all expectations and allowed the evolution of the detectors and operational requirements to follow. In order to minimize the impact of the human factor, many procedures have been optimized and new tools have been introduced in order to allow the operator to supervise about 1 000 000 parameters from a single console. In parallel with the preparation for new runs after the LHC shutdown a prototyping for system extensions which shall be ready in 2018 has started. New detectors will require new approaches to their control and configuration. The conditions data, currently collected after each run, will be provided continuously to a farm containing 100 000 CPU cores and tens of PB of storage. In this paper the DCS design, deployed technologies, and experience gained during the 7 years of operation will be described and the initial assumptions with the current setup will be compared. The current status of the developments for the upgraded system, which will be put into operation in less than 3 years from now, will also be described.

Slides THHA3O01 [4.556 MB]

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THHB2O03

The Global Trigger with Online Vertex Fitting for Low Energy Neutrino Research

experiment, detector, simulation, photon

1107

G.H. Gong, H. Li, T. Xue
Tsinghua University, Beijing, People's Republic of China
H. Gong
TUB, Beijing, People's Republic of China

Neutrino research is of great importance for particle physics, astrophysics and cosmology, the JUNO (Jiangmen Underground Neutrino Observatory) is a multi-purpose neutrino experiment for neutrino mass ordering determination and precision measurement of neutrino mixing parameters. A brand new global trigger scheme with online vertex fitting has been proposed, aiming at the ultra-low anti-neutrino energy threshold as down to 0.1MeV which is essential for the study of solar neutrino and elastic scattering of neutrinos on supernova burst. With this scheme, the TOF (time of flight) difference of photons fly through the liquid media from the interaction point to the surface of central detector can be corrected online with real time, the width of trigger window to cover the whole period of a specific neutrino generated photons can be significantly reduced which lessen the integrated dark noise introduced from the large amount of PMT devices hence a lower energy threshold can be achieved. The scheme is compatible, flexible and easy to implement, it can effectively extend the physics potential of the JUNO for low energy neutrino research topics.

Slides THHB2O03 [4.257 MB]

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