Pub Date : 2016-08-15DOI: 10.1109/RTC.2016.7543179
P. Amaudruz, D. Bishop, P. Gorel, T. Lindner, Y. Linn, K. Olchanski, F. Retière, B. Shaw, Ben Smith
This paper describes the Data Acquisition (DAQ) architecture for the DEAP-3600 experiment at SNOLAB in Ontario, Canada, which is searching for Weakly Interacting Massive Particles. (WIMPs). The identification of the WIMP is based on the rejection by signal discrimination of the beta decays from the liquid 39Ar composing the detector volume (3600kg). The Data Acquisition is based on commercial electronics modules for the waveform acquisition and custom electronics for the trigger decision system. The software layer (Midas) handles the overall experiment data taking process, and the monitoring of the experimental parameters.
{"title":"The data acquisition architecture for the “dark matter experiment using Argon pulse-shaped discrimination” — DEAP-3600","authors":"P. Amaudruz, D. Bishop, P. Gorel, T. Lindner, Y. Linn, K. Olchanski, F. Retière, B. Shaw, Ben Smith","doi":"10.1109/RTC.2016.7543179","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543179","url":null,"abstract":"This paper describes the Data Acquisition (DAQ) architecture for the DEAP-3600 experiment at SNOLAB in Ontario, Canada, which is searching for Weakly Interacting Massive Particles. (WIMPs). The identification of the WIMP is based on the rejection by signal discrimination of the beta decays from the liquid 39Ar composing the detector volume (3600kg). The Data Acquisition is based on commercial electronics modules for the waveform acquisition and custom electronics for the trigger decision system. The software layer (Midas) handles the overall experiment data taking process, and the monitoring of the experimental parameters.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"156 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131434254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-08-15DOI: 10.1109/RTC.2016.7543170
F. Clemêncio, A. Blanco, N. Carolino, C. Loureiro
The TOF-tracker concept, the simultaneous measurement of accurate time and bi-dimensional space coordinates in a single gaseous detector, has been previously demonstrated. Recently, a larger area, 1550×1250 mm2, RPC detector has been constructed. Signals are induced in metallic strips located in each side of the RPC active volume and coupled to both charge-sensitive and timing circuits, that can be used to generate a coincidence trigger. In this work, the architecture and performance of the trigger system of the detector is reported. The system is based on off-the-shelf inexpensive modules and in a custom program written in VHDL running in a Xilinx Spartan-6 FPGA. It is fast, fully parameterized and supports several trigger strategies, allowing at the same time the collection of several information referring to the operating condition of the detector, relevant for tests and detector maintenance.
{"title":"Trigger system for a large area RPC TOF-tracker","authors":"F. Clemêncio, A. Blanco, N. Carolino, C. Loureiro","doi":"10.1109/RTC.2016.7543170","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543170","url":null,"abstract":"The TOF-tracker concept, the simultaneous measurement of accurate time and bi-dimensional space coordinates in a single gaseous detector, has been previously demonstrated. Recently, a larger area, 1550×1250 mm2, RPC detector has been constructed. Signals are induced in metallic strips located in each side of the RPC active volume and coupled to both charge-sensitive and timing circuits, that can be used to generate a coincidence trigger. In this work, the architecture and performance of the trigger system of the detector is reported. The system is based on off-the-shelf inexpensive modules and in a custom program written in VHDL running in a Xilinx Spartan-6 FPGA. It is fast, fully parameterized and supports several trigger strategies, allowing at the same time the collection of several information referring to the operating condition of the detector, relevant for tests and detector maintenance.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"350 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115778271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-08-15DOI: 10.1109/RTC.2016.7543112
R. Rybaniec, K. Przygoda, V. Ayvazyan, J. Branlard, L. Butkowski, W. Cichalewski, S. Pfeiffer, C. Schmidt, H. Schlarb, J. Sekutowicz
Modern digital low level radio frequency (LLRF) control systems used to stabilize the accelerating field in facilities such as Free Electron Laser in Hamburg (FLASH) or European X-Ray Free Electron Laser (E-XFEL) are based on the Field Programmable Gate Array (FPGA) technology. Presently these accelerator facilities are operated with pulsed RF. In future, these facilities should be operated with continuous wave (CW) which requires significant modifications on the real-time feedbacks realized within the FPGA. For example, higher loaded quality factor of the cavities when operated in a CW mode requires sophisticated resonance control methods. However, iterative learning techniques widely used for machines operated in pulsed mode are not applicable for CW. In addition, the mechanical characteristic of the cavities have now a much more important impact on the choice of the feedback scheme. To overcome the limitations of classical PI-controllers novel realtime adaptive feed forward algorithm is implemented in the FPGA. Also, the high power RF amplifier which is an inductive output tube (IOT) for continuous wave operation instead of a klystron for the pulsed mode has major impact on the design and implementation of the firmware for regulation. In this paper, we report on our successful approach to control multi-cavities with ultra-high precision (dA/A<;0.01%, dphi<;0.02 deg) using a single IOT source and individual resonance control through piezo actuators. Performance measurements of the proposed solution were conducted at Cryo Module Test Bench (CMTB) facility.
{"title":"FPGA based RF and piezo controllers for SRF cavities in CW mode","authors":"R. Rybaniec, K. Przygoda, V. Ayvazyan, J. Branlard, L. Butkowski, W. Cichalewski, S. Pfeiffer, C. Schmidt, H. Schlarb, J. Sekutowicz","doi":"10.1109/RTC.2016.7543112","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543112","url":null,"abstract":"Modern digital low level radio frequency (LLRF) control systems used to stabilize the accelerating field in facilities such as Free Electron Laser in Hamburg (FLASH) or European X-Ray Free Electron Laser (E-XFEL) are based on the Field Programmable Gate Array (FPGA) technology. Presently these accelerator facilities are operated with pulsed RF. In future, these facilities should be operated with continuous wave (CW) which requires significant modifications on the real-time feedbacks realized within the FPGA. For example, higher loaded quality factor of the cavities when operated in a CW mode requires sophisticated resonance control methods. However, iterative learning techniques widely used for machines operated in pulsed mode are not applicable for CW. In addition, the mechanical characteristic of the cavities have now a much more important impact on the choice of the feedback scheme. To overcome the limitations of classical PI-controllers novel realtime adaptive feed forward algorithm is implemented in the FPGA. Also, the high power RF amplifier which is an inductive output tube (IOT) for continuous wave operation instead of a klystron for the pulsed mode has major impact on the design and implementation of the firmware for regulation. In this paper, we report on our successful approach to control multi-cavities with ultra-high precision (dA/A<;0.01%, dphi<;0.02 deg) using a single IOT source and individual resonance control through piezo actuators. Performance measurements of the proposed solution were conducted at Cryo Module Test Bench (CMTB) facility.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123132842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-08-15DOI: 10.1109/RTC.2016.7543110
C. Amstutz, F. Ball, M. Balzer, J. Brooke, L. Calligaris, D. Cieri, E. Clement, G. Hall, T. Harbaum, K. Harder, P. Hobson, G. Iles, T. James, K. Manolopoulos, T. Matsushita, A. Morton, D. Newbold, S. Paramesvaran, M. Pesaresi, I. Reid, A. Rose, O. Sander, T. Schuh, C. Shepherd-Themistocleous, A. Shtipliyski, S. Summers, A. Tapper, I. Tomalin, K. Uchida, P. Vichoudis, M. Weber
The CMS collaboration is preparing a major upgrade of its detector, so it can operate during the high luminosity run of the LHC from 2026. The upgraded tracker electronics will reconstruct the trajectories of charged particles within a latency of a few microseconds, so that they can be used by the level-1 trigger. An emulation framework, CIDAF, has been developed to provide a reference for a proposed FPGA-based implementation of this track finder, which employs a Time-Multiplexed (TM) technique for data processing.
{"title":"Emulation of a prototype FPGA track finder for the CMS Phase-2 upgrade with the CIDAF emulation framework","authors":"C. Amstutz, F. Ball, M. Balzer, J. Brooke, L. Calligaris, D. Cieri, E. Clement, G. Hall, T. Harbaum, K. Harder, P. Hobson, G. Iles, T. James, K. Manolopoulos, T. Matsushita, A. Morton, D. Newbold, S. Paramesvaran, M. Pesaresi, I. Reid, A. Rose, O. Sander, T. Schuh, C. Shepherd-Themistocleous, A. Shtipliyski, S. Summers, A. Tapper, I. Tomalin, K. Uchida, P. Vichoudis, M. Weber","doi":"10.1109/RTC.2016.7543110","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543110","url":null,"abstract":"The CMS collaboration is preparing a major upgrade of its detector, so it can operate during the high luminosity run of the LHC from 2026. The upgraded tracker electronics will reconstruct the trajectories of charged particles within a latency of a few microseconds, so that they can be used by the level-1 trigger. An emulation framework, CIDAF, has been developed to provide a reference for a proposed FPGA-based implementation of this track finder, which employs a Time-Multiplexed (TM) technique for data processing.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133601076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-06DOI: 10.1109/RTC.2016.7543079
Yong Xiao, Xinyi Cheng, Yonggang Wang
Time over dynamic threshold (TODT) method has been theoretically proved with excellent linearity when compared to time of threshold (TOT) method and practically tested with good performance with its application in DAQ system for multi-anode PMT based PET detector. However, both the coincidence time resolution and energy resolution were limited because of the relative low performance of TDCs used in our previous work. In this report, we implemented 67-channel TDCs using tapped-delay line (TDL) method, with average resolution of 63.3 ps in RMS. The performance of CRT of the detector is improved to about 400 ps. Moreover, the signal-noise ratio of 64-channel readouts are observed much meliorated which is supposed to give rise to better intrinsic spatial resolution for the detector. In all, the time resolution of this continuous crystal based PET detector can be expected to be less than 370 ps for FWHM and the intrinsic spatial resolution can be expected to be less than 1.5 mm in average within the whole field of view.
{"title":"Preliminary performance of a continuous crystal PET detector with TODT readout scheme","authors":"Yong Xiao, Xinyi Cheng, Yonggang Wang","doi":"10.1109/RTC.2016.7543079","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543079","url":null,"abstract":"Time over dynamic threshold (TODT) method has been theoretically proved with excellent linearity when compared to time of threshold (TOT) method and practically tested with good performance with its application in DAQ system for multi-anode PMT based PET detector. However, both the coincidence time resolution and energy resolution were limited because of the relative low performance of TDCs used in our previous work. In this report, we implemented 67-channel TDCs using tapped-delay line (TDL) method, with average resolution of 63.3 ps in RMS. The performance of CRT of the detector is improved to about 400 ps. Moreover, the signal-noise ratio of 64-channel readouts are observed much meliorated which is supposed to give rise to better intrinsic spatial resolution for the detector. In all, the time resolution of this continuous crystal based PET detector can be expected to be less than 370 ps for FWHM and the intrinsic spatial resolution can be expected to be less than 1.5 mm in average within the whole field of view.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117206442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-06DOI: 10.1109/RTC.2016.7543159
B. B. Carvalho, M. L. da Silva, Sergio Dias
A fully automated remote control system for the gas filling system has been developed for the ESTHER shock-tube using technologies and software tools, e.g. PLC, EPICS, CS-STUDIO, similar to the ITER CODAC I&C architecture for slow control. The system also comprises also a fast data acquisition for the combustion chamber diagnostics.
{"title":"The gas injection control and diagnostic system for the ESTHER shock tube","authors":"B. B. Carvalho, M. L. da Silva, Sergio Dias","doi":"10.1109/RTC.2016.7543159","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543159","url":null,"abstract":"A fully automated remote control system for the gas filling system has been developed for the ESTHER shock-tube using technologies and software tools, e.g. PLC, EPICS, CS-STUDIO, similar to the ITER CODAC I&C architecture for slow control. The system also comprises also a fast data acquisition for the combustion chamber diagnostics.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"45 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123407119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-06DOI: 10.1109/RTC.2016.7543111
Z. Zhang, B. Xiao, F. Wang, Z. Ji, Y. Wang, P. Wang, Z. Xu, T. Ma, T. Lan, H. Li, W. Liu
KT'K is a new reversed field pinch (RFP) device, and the Central Control System (CCS) for KTX is developed to integrate, harmonize and supervise all of the control subsystems. The new control system includes graphical user interface (GUI), discharge process control module, timing system, safety & interlock system, gas injection module and shot information server. The details about the central control system architecture and components will be described in this article.
{"title":"The implementation of KTX central control system","authors":"Z. Zhang, B. Xiao, F. Wang, Z. Ji, Y. Wang, P. Wang, Z. Xu, T. Ma, T. Lan, H. Li, W. Liu","doi":"10.1109/RTC.2016.7543111","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543111","url":null,"abstract":"KT'K is a new reversed field pinch (RFP) device, and the Central Control System (CCS) for KTX is developed to integrate, harmonize and supervise all of the control subsystems. The new control system includes graphical user interface (GUI), discharge process control module, timing system, safety & interlock system, gas injection module and shot information server. The details about the central control system architecture and components will be described in this article.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129507112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-06DOI: 10.1109/RTC.2016.7543078
Houbing Lu, K. Hu, Xu Wang, Feng Li, L. Han, G. Jin
The ATLAS detector will be upgraded in 2018. The main focus of the Phase-I ATLAS upgrade is on the Level-1 trigger, replacing the present muon small wheels (SW) with the “new small wheel(NSW)”, which consists of small thin gap chamber(sTGC) and micromegas (MM). A versatile application-specific integrated circuit(ASIC), the VMM chip, have been developed to read out the signals of the sTGC and MM. The VMM have 64 channels. In order to test the performance of the VMM, a large data transfer rate is needed. Meanwhile, it is required to implement the multi-board interconnection. It is proposed to apply the high-speed Ethernet-based network. We designed and implemented a test platform, the Gigabit Ethernet Module(GEM). The test result shows that the transfer rate can reach up to 926Mbps. Subsequently, the Ethernet is applied in the pad front end board (pFEB) and the thin gap chamber simulation signal generator (SG). This paper introduces the implementation of the GEM platform, as well as its applications. The features of the systems are described in detail.
{"title":"High speed ethernet application for the trigger electronics of the new small wheel","authors":"Houbing Lu, K. Hu, Xu Wang, Feng Li, L. Han, G. Jin","doi":"10.1109/RTC.2016.7543078","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543078","url":null,"abstract":"The ATLAS detector will be upgraded in 2018. The main focus of the Phase-I ATLAS upgrade is on the Level-1 trigger, replacing the present muon small wheels (SW) with the “new small wheel(NSW)”, which consists of small thin gap chamber(sTGC) and micromegas (MM). A versatile application-specific integrated circuit(ASIC), the VMM chip, have been developed to read out the signals of the sTGC and MM. The VMM have 64 channels. In order to test the performance of the VMM, a large data transfer rate is needed. Meanwhile, it is required to implement the multi-board interconnection. It is proposed to apply the high-speed Ethernet-based network. We designed and implemented a test platform, the Gigabit Ethernet Module(GEM). The test result shows that the transfer rate can reach up to 926Mbps. Subsequently, the Ethernet is applied in the pad front end board (pFEB) and the thin gap chamber simulation signal generator (SG). This paper introduces the implementation of the GEM platform, as well as its applications. The features of the systems are described in detail.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128501670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-06DOI: 10.1109/RTC.2016.7543143
Xu Wang, K. Hu, Houbing Lu, Feng Li, Hang Yang, Xinxin Wang, Tianru Geng, L. Han, G. Jin
The Atlas detector, which is one of the Large Hadron Collider (LHC) at CERN, will be upgraded in order to extend the frontiers of particle physics. Bunches of up to 1011 protons will collide at the rate of 40MHz to provide 14TeV proton-proton collisions at a designed luminosity of 1034cm-2s-1. Currently ATLAS is under Phase-I upgrade, which focus mainly on the Level-1 trigger system to maintain the full acceptance of muon tracking while discriminate against background and keep the Level-1 rate at an acceptable level. The New Small Wheel(NSW), which consists of 16 detector planes in two multi-layers comprising of four small-strip Thin Gap Chamber(sTGC) and four MicroMagas(MM) detector planes, is to replace the current muon Small Wheel in order to achieve the upgrade goals. The sTGC Level-1 pad trigger logic is implemented first single wedge pad trigger which is based on coincident hits in three out of four layers of a multiplet in each wedge independently and then pad trigger which is based on geometrical matching between the two wedge triggers in order to identify the interaction point (IP). We designed the pads Front End Board (pFEB) to gather and analyses pads trigger which is the most important issue for Atlas Phase-I upgrade.
欧洲核子研究中心(CERN)大型强子对撞机(LHC)中的阿特拉斯(Atlas)探测器将进行升级，以拓展粒子物理学的前沿。多达1011个质子将以40MHz的速度碰撞，在1034cm-2s-1的设计亮度下提供14TeV的质子-质子碰撞。目前ATLAS正处于第一阶段的升级阶段，升级的重点是1级触发系统，以保持对μ子跟踪的完全接受，同时区分背景，使1级率保持在可接受的水平。新型小轮(New Small Wheel, NSW)由4个小带薄间隙腔(Small -strip Thin Gap Chamber, sTGC)和4个MicroMagas(MM)探测器组成的2个多层16个探测器平面组成，旨在取代现有的μ子小轮，实现升级目标。sTGC -1级垫触发逻辑首先实现单楔垫触发，该触发基于每个楔中四层中的三层的重合命中，然后基于两个楔之间的几何匹配来确定交互点(IP)。我们设计了pad前端板(pFEB)来收集和分析pad触发，这是Atlas第一期升级中最重要的问题。
{"title":"A cosmic ray readout system for qualifications of small-strip thin gap chambers of the ATLAS muon spectrometer Phase-I upgrade","authors":"Xu Wang, K. Hu, Houbing Lu, Feng Li, Hang Yang, Xinxin Wang, Tianru Geng, L. Han, G. Jin","doi":"10.1109/RTC.2016.7543143","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543143","url":null,"abstract":"The Atlas detector, which is one of the Large Hadron Collider (LHC) at CERN, will be upgraded in order to extend the frontiers of particle physics. Bunches of up to 1011 protons will collide at the rate of 40MHz to provide 14TeV proton-proton collisions at a designed luminosity of 1034cm-2s-1. Currently ATLAS is under Phase-I upgrade, which focus mainly on the Level-1 trigger system to maintain the full acceptance of muon tracking while discriminate against background and keep the Level-1 rate at an acceptable level. The New Small Wheel(NSW), which consists of 16 detector planes in two multi-layers comprising of four small-strip Thin Gap Chamber(sTGC) and four MicroMagas(MM) detector planes, is to replace the current muon Small Wheel in order to achieve the upgrade goals. The sTGC Level-1 pad trigger logic is implemented first single wedge pad trigger which is based on coincident hits in three out of four layers of a multiplet in each wedge independently and then pad trigger which is based on geometrical matching between the two wedge triggers in order to identify the interaction point (IP). We designed the pads Front End Board (pFEB) to gather and analyses pads trigger which is the most important issue for Atlas Phase-I upgrade.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114225479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-06DOI: 10.1109/RTC.2016.7543160
Cruz de Jesús Garcia Chavez, U. Kebschull
Feature extraction is a data pre-processing stage of the Transition Radiation Detector (TRD) data-acquisition chain (DAQ) as part of the Compressed Baryonic Matter (CBM) experiment. The feature extraction stage delivers event-filtered and bandwidth-reduced data to the First Level Event Selector (FLES). The feature extraction stage implements multiple processing algorithms in order to find and extract regions of interest within time series signals. Algorithms such as peak-finding, signal integration, center of gravity and time-over threshold were implemented for online analysis. On the other hand, a local clustering algorithm allows to find cluster members and to implement even further data reduction algorithms. A feature extraction framework for automatic firmware generation has been tested for the CBM-TRD data acquisition chain. The framework allows the generation of Field Programmable Gate Array (FPGA) designs that implement feature extraction algorithms. Such designs are FPGA-platform independent and are described by a file written in a Domain Specific Language (DSL). The result of using the mentioned feature extraction framework for the TRD feature extraction stage is presented and discussed.
{"title":"Design and evaluation of an FPGA online feature extraction data pre-processing stage for the CBM-TRD experiment","authors":"Cruz de Jesús Garcia Chavez, U. Kebschull","doi":"10.1109/RTC.2016.7543160","DOIUrl":"https://doi.org/10.1109/RTC.2016.7543160","url":null,"abstract":"Feature extraction is a data pre-processing stage of the Transition Radiation Detector (TRD) data-acquisition chain (DAQ) as part of the Compressed Baryonic Matter (CBM) experiment. The feature extraction stage delivers event-filtered and bandwidth-reduced data to the First Level Event Selector (FLES). The feature extraction stage implements multiple processing algorithms in order to find and extract regions of interest within time series signals. Algorithms such as peak-finding, signal integration, center of gravity and time-over threshold were implemented for online analysis. On the other hand, a local clustering algorithm allows to find cluster members and to implement even further data reduction algorithms. A feature extraction framework for automatic firmware generation has been tested for the CBM-TRD data acquisition chain. The framework allows the generation of Field Programmable Gate Array (FPGA) designs that implement feature extraction algorithms. Such designs are FPGA-platform independent and are described by a file written in a Domain Specific Language (DSL). The result of using the mentioned feature extraction framework for the TRD feature extraction stage is presented and discussed.","PeriodicalId":383702,"journal":{"name":"2016 IEEE-NPSS Real Time Conference (RT)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132469795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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