2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)最新文献_第2页

The CMS fast beams condition monitor back-end electronics based on MicroTCA technology 基于MicroTCA技术的CMS快波束状态监测后端电子器件

2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2015-11-24 DOI: 10.1109/NSSMIC.2015.7581987

A. Zagoździńska

{"title":"The CMS fast beams condition monitor back-end electronics based on MicroTCA technology","authors":"A. Zagoździńska","doi":"10.1109/NSSMIC.2015.7581987","DOIUrl":"https://doi.org/10.1109/NSSMIC.2015.7581987","url":null,"abstract":"The Fast Beams Condition Monitor (BCM1F), upgraded for LHC Run II, is used to measure the online luminosity and machine induced background for the CMS experiment. The detector consists of 24 single-crystal CVD diamond sensors that are read out with a custom fast front-end chip fabricated in 130 nm CMOS technology. Since the signals from the sensors are used for real time monitoring of the LHC conditions they are processed by dedicated back-end electronics to measure separately rates corresponding to LHC collision products, machine induced background and residual activation exploiting different arrival times. The system is built in MicroTCA technology and uses high speed analog-to-digital converters. The data processing module designed for the FPGA allows a distinguishing of collision and machine induced background, that are both synchronous to the LHC clock, from the residual activation products, based on arrival time measurements. In operational modes at high rates, consecutive events, spaced in time by less than 12.5 ns, result in signal pileup. Hence, novel signal processing techniques are deployed to resolve overlapping peaks. The high accuracy qualification of the signals is crucial to determine the luminosity and the machine induced background rates for the CMS experiment and the LHC. The architecture of the back-end electronics and the signal processing techniques will be presented and its performance thus far using data taken in LHC Run II.","PeriodicalId":106811,"journal":{"name":"2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117314416","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}

引用次数: 2

The PreProcessors for the ATLAS tile calorimeter phase II upgrade ATLAS瓷砖量热计II期升级的预处理器

2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2015-11-23 DOI: 10.1109/NSSMIC.2015.7581781

F. Carrió, D. Álvarez, V. Castillo, L. Cerda, A. Ferrer, L. Fiorini, Y. Hernandez, E. Higón, P. Moreno, C. Solans, A. Valero, J. Valls

{"title":"The PreProcessors for the ATLAS tile calorimeter phase II upgrade","authors":"F. Carrió, D. Álvarez, V. Castillo, L. Cerda, A. Ferrer, L. Fiorini, Y. Hernandez, E. Higón, P. Moreno, C. Solans, A. Valero, J. Valls","doi":"10.1109/NSSMIC.2015.7581781","DOIUrl":"https://doi.org/10.1109/NSSMIC.2015.7581781","url":null,"abstract":"The Large Hadron Collider has envisaged a series of upgrades towards a High Luminosity LHC delivering five times the LHC nominal instantaneous luminosity. The ATLAS Phase II Upgrade will accommodate the detector and data acquisition system for the HL-LHC. In particular, the Tile Hadronic Calorimeter will completely replace front-end and back-end electronics using a new read-out architecture. The digitized detector data will be transferred for every beam crossing to the PreProcessors located in off-detector counting rooms with a total data bandwidth of roughly 80 Tbps. The TilePPr implements larger pipelines memories and must provide pre-processed digital trigger information to Level 0/1 trigger systems. The TilePPr system represents the link between the front-end electronics and the overall ATLAS data acquisition system. It also implements the interface between the Detector Control System and the front-end electronics which is used to control and monitor the high voltage distribution system. The TilePPr is responsible of transmitting the commands to configure, control and monitor the front-end electronics.","PeriodicalId":106811,"journal":{"name":"2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124160428","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}

引用次数: 2

Thermal variance investigation and scintillation mechanisms of Cs2LiLaBr6−xClx:Ce (CLLBC) and Cs2LiYBr6:Ce (CLYB) Cs2LiLaBr6−xClx:Ce (CLLBC)和Cs2LiYBr6:Ce (CLYB)的热方差研究及闪烁机理

2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2015-11-23 DOI: 10.1109/NSSMIC.2015.7581823

D. Coupland, B. Budden, L. Stonehill

引用次数: 4

Response of Cs2LiYCl6:Ce (CLYC) to high energy protons Cs2LiYCl6:Ce (CLYC)对高能质子的响应

2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2015-11-23 DOI: 10.1109/NSSMIC.2015.7581829

D. Coupland, L. Stonehill, John J. Goettm

引用次数: 0

The design and performance of the ATLAS Inner Detector trigger for Run 2 运行2的ATLAS内部探测器触发器的设计与性能

2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2015-11-20 DOI: 10.1109/NSSMIC.2015.7581784

O. Penc

引用次数: 2

Design and construction of precision tooling for the construction of resistive strip micromegas detectors for the ATLAS Small Wheel upgrade project 阿特拉斯小轮升级工程中电阻式微细气体探测器精密工装的设计与制造

2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2015-11-20 DOI: 10.1109/NSSMIC.2015.7581799

R. Muller

{"title":"Design and construction of precision tooling for the construction of resistive strip micromegas detectors for the ATLAS Small Wheel upgrade project","authors":"R. Muller","doi":"10.1109/NSSMIC.2015.7581799","DOIUrl":"https://doi.org/10.1109/NSSMIC.2015.7581799","url":null,"abstract":"Mechanical precision is a key aspect of the 2 m2 high-rate capable Micromegas detectors for the upgrade of the Small Wheels of the ATLAS muon spectrometer. The Micromegas will be built as quadruplets with cathodes and strip-anodes made of stable honeycomb sandwiches. To achieve the required single plane resolution below 100 μm the deviation from planarity of a single detector plane must not exceed 80 μm in direction perpendicular to the precision coordinate. The global position of the readout strips has to be within 30μm for a single readout-plane of three PCBs, as well as between all four planes of a quadruplet. Precision tooling is used for the correct positioning of readout PCBs and readout sandwich planes. For quality control of the planarity of the sandwich planes a laser distance sensor combined with a coordinate measurement system has been developed. Deviation from planarity below 10 μm can be easily resolved. We will present key features of the challenging construction procedure to achieve this high level of precision as well as our alignment strategies. This includes the construction and commissioning of a 2.5 m2 lightweight rigid structure (stiffback), which has an overall planarity below 15 μm RMS and the measurement of the the blow up of outer planes of a quadruplet due to 2 mbar overpressure of the Ar:CO2 detector gas, the standard situation in ATLAS.","PeriodicalId":106811,"journal":{"name":"2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127211378","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}

引用次数: 0

The phase-1 upgrade of the CMS vertex detector CMS顶点检测器的第一阶段升级

2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2015-11-19 DOI: 10.1109/NSSMIC.2015.7581859

M. Menichelli

{"title":"The phase-1 upgrade of the CMS vertex detector","authors":"M. Menichelli","doi":"10.1109/NSSMIC.2015.7581859","DOIUrl":"https://doi.org/10.1109/NSSMIC.2015.7581859","url":null,"abstract":"The operation of the present pixel detector has started in 2010 with LHC operating at a center of mass (CM) energy of 7 TeV. At the beginning of 2012 CM energy was increased to 8 TeV and within December 2012 a total of 19 fb-1 integrated luminosity has been delivered, with instantaneous peak luminosities approaching 7 × 1033 cm-2s-1. The present pixel detector was originally designed for a luminosity of 1 × 1034 cm-2 s-1 and a pileup (number of inelastic interactions per bunch crossing) of 25 in 25 ns bunch spacing. These beam parameters will be reached in the middle of the data taking period 2015-2018 (with an additional increase in the center of mass energy up to the value of 13 TeV) and then the peak luminosity will keep increasing until 2017 when it will reach the value of 1.5 × 1034 cm-2 s-1. The present detector will remain operative until the end of 2016 and will be replaced with an upgraded detector that will be described in this work before Long Shutdown 2 (LS2). After LS2 the beam parameters will change again, around 2021 a peak luminosity reaching at least 2 × 1034 cm-2 s-1 is foreseen, consequently pile-up will increase up to 50 with 25 ns bunch spacing. In this context the present pixel detector will be unable to perform adequately and this is the reason why a new detector needs to be built and installed before LS2. The new upgraded detector will have higher tracking efficiency and lower mass with four barrel layers and three forward/backward disks to provide a hit pixel coverage up to absolute pseudorapidities of 2.5. In this paper the new pixel detector will be described focusing mostly on the barrel detector design, construction and expected performances. Test procedures for detector module production will also be presented.","PeriodicalId":106811,"journal":{"name":"2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116418313","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}

引用次数: 0

Highly parallelized pattern matching execution for the ATLAS experiment ATLAS实验的高度并行模式匹配执行

2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2015-11-17 DOI: 10.1109/NSSMIC.2015.7581789

A. Annovi, F. Bertolucci, N. Biesuz, D. Calabró, G. Calderini, S. Citraro, F. Crescioli, D. Dimas, M. Dell'Orso, S. Donati, C. Gentsos, P. Giannetti, S. Gkaitatzis, V. Greco, P. Kalaitzidis, K. Kordas, N. Kimura, T. Kubota, A. Lanza, P. Luciano, B. Magnin, I. Maznas, K. Mermikli, H. Nasimi, S. Nikolaidis, M. Piendibene, A. Sakellariou, D. Sampsonidis, C. Sotiropoulou, G. Volpi, I. Xiotidis

{"title":"Highly parallelized pattern matching execution for the ATLAS experiment","authors":"A. Annovi, F. Bertolucci, N. Biesuz, D. Calabró, G. Calderini, S. Citraro, F. Crescioli, D. Dimas, M. Dell'Orso, S. Donati, C. Gentsos, P. Giannetti, S. Gkaitatzis, V. Greco, P. Kalaitzidis, K. Kordas, N. Kimura, T. Kubota, A. Lanza, P. Luciano, B. Magnin, I. Maznas, K. Mermikli, H. Nasimi, S. Nikolaidis, M. Piendibene, A. Sakellariou, D. Sampsonidis, C. Sotiropoulou, G. Volpi, I. Xiotidis","doi":"10.1109/NSSMIC.2015.7581789","DOIUrl":"https://doi.org/10.1109/NSSMIC.2015.7581789","url":null,"abstract":"The Associative Memory (AM) system of the Fast TracKer (FTK) processor has been designed to perform pattern matching using as input the data from the silicon tracker in the ATLAS experiment. The AM is the primary component of the FTK system and is designed using ASIC technology (the AM chip) to execute pattern matching with a high degree of parallelism. The FTK system finds track candidates at low resolution that are seeds for a full resolution track fitting. The AM system implementation is named “Serial Link Processor” and is based on an extremely powerful network of 2 Gb/s serial links to sustain a huge traffic of data. This paper reports on the design of the Serial Link Processor consisting of two types of boards, the Little Associative Memory Board (LAMB), a mezzanine where the AM chips are mounted, and the Associative Memory Board (AMB), a 9U VME motherboard which hosts four LAMB daughterboards. We also report on the performance of the prototypes (both hardware and firmware) produced and tested in the global FTK integration, an important milestone to be satisfied before the FTK production.","PeriodicalId":106811,"journal":{"name":"2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114483579","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}

引用次数: 0

The machine protection system for the Fermilab Accelerator Science and Technology Facility 费米实验室加速器科学技术设施的机器保护系统

2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2015-11-15 DOI: 10.1109/NSSMIC.2015.7581882

Jinyuan Wu, A. Warner, Ning Liu, R. Neswold, L. Carmichael

{"title":"The machine protection system for the Fermilab Accelerator Science and Technology Facility","authors":"Jinyuan Wu, A. Warner, Ning Liu, R. Neswold, L. Carmichael","doi":"10.1109/NSSMIC.2015.7581882","DOIUrl":"https://doi.org/10.1109/NSSMIC.2015.7581882","url":null,"abstract":"The Machine Protection System (MPS) for the Fermilab Accelerator Science and Technology Facility (FAST) has been implemented and tested. The system receives signals from several subsystems and devices which conveys the relevant status needed to the safely operate the accelerator. Logic decisions are made based on these inputs and some predefined user settings which in turn controls the gate signal to the laser of the photo injector. The inputs of the system have a wide variety of signal types, encoding methods and urgencies for which the system is designed to accommodate. The MPS receives fast shutdown (FSD) signals generated by the beam loss system and inhibits the beam or reduces the beam intensity within a macro-pulse when the beam losses at several places along the accelerator beam line are higher than acceptable values. TTL or relay contact signals from the vacuum system, toroids, magnet systems etc., are chosen with polarities that ensure safe operation of the accelerator from unintended events such as cable disconnection in the harsh industrial environment of the experimental hall. A RS422 serial communication scheme is used to interface the operation permit generator module and a large number of movable devices each reporting multi-bit status. The system also supports operations at user defined lower beam levels for system commissioning. The machine protection system is implemented with two commercially available off-the-shelf VMEbus based modules with on board FPGA devices. The system is monitored and controlled via the VMEbus by a single board CPU.","PeriodicalId":106811,"journal":{"name":"2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131420717","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}

引用次数: 1

Superconducting magnet with the reduced barrel yoke for the hadron Future Circular Collider 未来强子环形对撞机用减筒轭超导磁体

2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2015-11-06 DOI: 10.1109/NSSMIC.2015.7581877

V. Klyukhin, A. Ball, C. Berriaud, B. Curé, A. Dudarev, A. Gaddi, H. Gerwig, A. Hervé, M. Mentink, G. Rolando, H. Pais Da Silva, U. Wagner, H. T. ten Kate

{"title":"Superconducting magnet with the reduced barrel yoke for the hadron Future Circular Collider","authors":"V. Klyukhin, A. Ball, C. Berriaud, B. Curé, A. Dudarev, A. Gaddi, H. Gerwig, A. Hervé, M. Mentink, G. Rolando, H. Pais Da Silva, U. Wagner, H. T. ten Kate","doi":"10.1109/NSSMIC.2015.7581877","DOIUrl":"https://doi.org/10.1109/NSSMIC.2015.7581877","url":null,"abstract":"The conceptual design study of a hadron Future Circular Collider (FCC-hh) with a center-of-mass energy of the order of 100 TeV in a new tunnel of 80-100 km circumference assumes the determination of the basic requirements for its detectors. A superconducting solenoid magnet of 12 m diameter inner bore with the central magnetic flux density of 6 T is proposed for a FCC-hh experimental setup. The coil of 24.518 m long has seven 3.5 m long modules included into one cryostat. The steel yoke with a mass of 21 kt consists of two barrel layers of 0.5 m radial thickness, and 0.7 m thick nose disk, four 0.6 m thick end-cap disks, and three 0.8 m thick muon toroid disks each side. The outer diameter of the yoke is 17.7 m; the length without the forward muon toroids is 33 m. The air gaps between the end-cap disks provide the installation of the muon chambers up to the pseudorapidity of ±3.5. The conventional forward muon spectrometer provides the measuring of the muon momenta in the pseudorapidity region from ±2.7 to ±4.6. The magnet modeled with Cobham's program TOSCA. The total Ampere-turns in the superconducting solenoid coil are 127.25 MA-turns. The stored energy is 43.3 GJ. The axial force onto each end-cap is 480 MN. The stray field at the radius of 50 m off the coil axis is 14.1 mT and 5.4 mT at the radius of 100 m. All other parameters presented and discussed.","PeriodicalId":106811,"journal":{"name":"2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130385988","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}

引用次数: 2