2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)最新文献

Performance of a large aperture GEM-like gating device for the International Linear Collider 国际直线对撞机大孔径类gem门控装置的性能

2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2017-12-28 DOI: 10.1109/NSSMIC.2017.8532873

T. Ogawa

{"title":"Performance of a large aperture GEM-like gating device for the International Linear Collider","authors":"T. Ogawa","doi":"10.1109/NSSMIC.2017.8532873","DOIUrl":"https://doi.org/10.1109/NSSMIC.2017.8532873","url":null,"abstract":"One of the potential problems of a Micro-Pattern Gaseous Detector (MPGD)-based Time Projection Chamber (TPC) is the Ion back Flow (IBF): ions generated through the avalanche amplification process flow back to the drift volume of the TPC and disarrange an electric field inside it. Consequently non-negligible degradation of azimuthal spatial resolution is caused due to this IBF. Meanwhile, it is necessary to collect primary ionized electrons to maintain intrinsic performance of the MPGDs. The MPGD based TPC is currently planned to be used as a central tracking detector of the International Large Detector (ILD), which is one of the detector concepts for the future International Linear Collider (ILC) project, and which requires fine azimuthal spatial resolution of less than $100~mu mathrm {m}$ over the drift length of the TPC to attain high momentum resolution. Because of a unique beam structure of the ILC, the IBF is a critical issue for the realization of the ILD-TPC. Not only to suppress the ion back-flow to the drift volume, but also to allow the primary electrons pass through, a large aperture GEM-like gating device has been developed. Several bench tests for confirming the performance of the gating device have been conducted, besides that, beam test with the full detector module equipped with the gating device was carried out to verify the resolution that the full module can provide. As a result, it turned out that the developed gating device fulfills requirements for maintaining the performance of the MPGD based TPC, and it has sufficient performance for the central tracker of the ILD at the ILC.","PeriodicalId":155659,"journal":{"name":"2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123638806","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 ATLAS Muon to Central Trigger Processor Interface Upgrade for the Run 3 of the LHC 大型强子对撞机运行3时ATLAS介子到中央触发处理器接口的升级

2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2017-12-05 DOI: 10.1109/NSSMIC.2017.8532707

A. Armbruster, G. Carrillo-Montoya, M. Chelstowska, P. Czodrowski, P. Deviveiros, T. Eifert, N. Ellis, P. Farthouat, G. Galster, S. Haas, L. Helary, Orestis Lagkas Nikolos, Y. Leblebici, A. Marzin, T. Pauly, V. Ryjov, A. Cerqueira, K. Schmieden, Marcos Vinicius Silva Oliveira, R. Spiwoks, J. Stelzer, A. Vachoux, P. Vichoudis, T. Wengler

{"title":"The ATLAS Muon to Central Trigger Processor Interface Upgrade for the Run 3 of the LHC","authors":"A. Armbruster, G. Carrillo-Montoya, M. Chelstowska, P. Czodrowski, P. Deviveiros, T. Eifert, N. Ellis, P. Farthouat, G. Galster, S. Haas, L. Helary, Orestis Lagkas Nikolos, Y. Leblebici, A. Marzin, T. Pauly, V. Ryjov, A. Cerqueira, K. Schmieden, Marcos Vinicius Silva Oliveira, R. Spiwoks, J. Stelzer, A. Vachoux, P. Vichoudis, T. Wengler","doi":"10.1109/NSSMIC.2017.8532707","DOIUrl":"https://doi.org/10.1109/NSSMIC.2017.8532707","url":null,"abstract":"To cope with the higher luminosity and physics cross-sections for the third run of the Large Hadron Collider (LHC) and beyond, the Trigger and Data Acquisition (TDAQ) system of the ATLAS experiment at CERN is being upgraded. Part of the TDAQ system, the Muon to Central Trigger Processor Interface (MUCTPI) receives muon candidates information from each of the 208 barrel and endcap muon trigger sectors, counts muon candidates for each transverse momentum threshold and sends the result to the Central Trigger Processor (CTP). The MUCTPI takes into account the possible overlap between trigger sectors in order to avoid double counting of muon candidates. A full redesign and replacement of the existing MUCTPI is required in order to provide full-granularity muon position information at the bunch crossing rate to the Topological Trigger processor (L1Topo) and to be able to interface with the new sector logic modules. State-of-the-art FPGA technology and highdensity ribbon fibre-optic transmitters and receivers arebeing used to implement the MUCTPI in a single AdvancedTCA blade, compared to 18 9U VMEbus cards in the existing system. The upgraded MUCTPI featuresover 270 multi-gigabit optical inputs/outputs with an aggregate bandwidth of over 2 Tbit/sec. This work presents the hardware design, results from the validation of the first prototype, the testing of the optical interfaces, and integration tests with the muon sector logic.","PeriodicalId":155659,"journal":{"name":"2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126232053","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: 7

Performance of new radiation tolerant thin n-in-p Silicon pixel sensors for the CMS experiment at High Luminosity LHC 高亮度大型强子对撞机CMS实验中新型耐辐射薄n-in-p硅像元传感器的性能

2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2017-11-30 DOI: 10.1109/NSSMIC.2017.8532665

G. Betta, M. Boscardin, G. Darbo, M. Dinardo, G. Giacomini, D. Menasce, M. Meschini, A. Messineo, L. Moroni, R. Rivera, S. Ronchin, L. Uplegger, L. Viliani, I. Zoi, D. Zuolo

引用次数: 0

Quality Assurance on a custom SiPMs array for the Mu2e experiment 用于Mu2e实验的自定义SiPMs阵列的质量保证

2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2017-11-20 DOI: 10.1109/NSSMIC.2017.8533119

N. Atanov, V. Baranov, J. Budagov, Y. Davydov, V. Glagolev, V. Tereshchenko, Z. Usubov, F. Cervelli, S. Falco, S. Donati, L. Morescalchi, E. Pedreschi, G. Pezzullo, F. Raffaelli, F. Spinella, F. Colao, M. Cordelli, G. Corradi, E. Diociaiuti, R. Donghia, S. Giovannella, F. Happacher, M. Martini, S. Miscetti, M. Ricci, A. Saputi, I. Sarra, B. Echenard, D. Hitlin, T. Miyashita, F. Porter, R. Zhu, F. Grancagnolo, G. Tassielli, P. Murat

引用次数: 1

A High-Granularity Timing Detector for the Phase-II upgrade of the ATLAS Detector System 用于ATLAS探测器系统二期升级的高粒度定时探测器

2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2017-11-17 DOI: 10.1109/NSSMIC.2017.8533104

C. Agapopoulou

{"title":"A High-Granularity Timing Detector for the Phase-II upgrade of the ATLAS Detector System","authors":"C. Agapopoulou","doi":"10.1109/NSSMIC.2017.8533104","DOIUrl":"https://doi.org/10.1109/NSSMIC.2017.8533104","url":null,"abstract":"The expected increase of the particle flux at the high luminosity phase of the LHC with instantaneous luminosities up to $mathrm {L}= 7.5 times 10 ^{34}$ cm $^{-2} mathrm {s}^{-1}$ will have a severe impact on pile-up. The pile-up is expected to increase on average to 200 interactions per bunch crossing. The reconstruction performance for especially jets and transverse missing energy will be severely degraded in the end-cap and forward region of the ATLAS detector. A High Granularity Timing Detector (HGTD) is proposed in front of the liquid Argon end-cap calorimeters of ATLAS for pile-up mitigation in the offline reconstruction. An additional use of the detector as a luminometer is proposed. This device covers the pseudo-rapidity range of 2.4 to about 4. Four layers of Silicon sensors are foreseen to provide precision timing information with a time resolution of the order of 30 pico-seconds per minimum ionizing particle in order to assign the energy deposits in the calorimeter to different proton-proton collision vertices. Each readout sensor has a transverse size of only a few mm, leading to a highly granular detector with several million readout channels. The expected improvements in performance are relevant for physics processes, i.e, vector-boson fusion and vector-boson scattering processes, and for physics signatures with large missing transverse energy. The chosen silicon sensor technology is Low Gain Avalanche Detectors (LGAD). In this document, starting from the physics motivations of the High Granularity Timing Detector, the proposed detector layout and Front End readout, laboratory and beam test characterization of sensors and the results of radiation tests will be discussed.","PeriodicalId":155659,"journal":{"name":"2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"157 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128769462","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

Experimental and simulation study of irradiated silicon pad detectors for the CMS High Granularity Calorimeter CMS高粒度量热计辐照硅衬垫探测器的实验与仿真研究

2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2017-11-14 DOI: 10.1109/NSSMIC.2017.8532957

T. Peltola

{"title":"Experimental and simulation study of irradiated silicon pad detectors for the CMS High Granularity Calorimeter","authors":"T. Peltola","doi":"10.1109/NSSMIC.2017.8532957","DOIUrl":"https://doi.org/10.1109/NSSMIC.2017.8532957","url":null,"abstract":"The foreseen upgrade of the LHC to its high luminosity phase (HL-LHC), will maximize the physics potential of the facility. The upgrade is expected to increase the instantaneous luminosity by a factor of 5 and deliver an integrated luminosity of 3000 fb−1 after 10 years of operation. As a result of the corresponding increase in radiation and pileup, the electromagnetic calorimetry in the CMS endcaps will sustain maximum integrated doses of 1.5 MGy and neutron fluences above 1016 neqcm−2, necessitating their replacement for HL-LHC operation.The CMS collaboration has decided to replace the existing endcap electromagnetic and hadronic calorimeters by a High Granularity Calorimeter (HGCAL) that will provide unprecedented information on electromagnetic and hadronic showers in the very high pileup of the HL-LHC. In order to employ Si detectors in HGCAL and to address the challenges brought by the intense radiation environment, an extensive R&D program has been initiated, comprising production of prototype sensors of various types, sizes and thicknesses, their qualification before and after irradiation to the expected levels, and accompanying simulation studies.The ongoing investigation presented here includes measurements of current-voltage and capacitance-voltage characteristics, along with predicted charge collection efficiences of the sensors irradiated to levels expected for the HGCAL at HL-LHC. The status of the study and the first results of the performance of neutron irradiated Si detectors, as well as their comparison with numerical simulations, are presented.","PeriodicalId":155659,"journal":{"name":"2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123312704","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

An Updated Front-End Data Link Design for the Phase-2 Upgrade of the ATLAS Tile Calorimeter ATLAS瓷砖量热计第二阶段升级的更新前端数据链路设计

2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2017-11-08 DOI: 10.1109/NSSMIC.2017.8533116

S. Silverstein, E. Santurio, C. Bohm

引用次数: 0

Offline Reconstruction Algorithms for the CMS High Granularity Calorimeter for HL-LHC hc - lhc CMS高粒度量热计的离线重构算法

2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2017-11-07 DOI: 10.1109/NSSMIC.2017.8532605

Ziheng Chen, C. Lange, E. Meschi, E. Scott, C. Seez

{"title":"Offline Reconstruction Algorithms for the CMS High Granularity Calorimeter for HL-LHC","authors":"Ziheng Chen, C. Lange, E. Meschi, E. Scott, C. Seez","doi":"10.1109/NSSMIC.2017.8532605","DOIUrl":"https://doi.org/10.1109/NSSMIC.2017.8532605","url":null,"abstract":"The upgraded High Luminosity LHC, after thethird Long Shutdown (LS3), will provide an instantaneous luminosity of 7:5 × 1034 cm-2s-1 (levelled), at the price of extreme pileup of up to200 interactions per crossing. Such exreme pileup poses significant challenges, in particular for forward calorimetry. As part of its HL-LHC upgrade program, the CMS collaboration is designing a High Granularity Calorimeter to replace the existing endcap calorimeters. It features unprecedented transverse and longitudinal segmentationfor both electromagnetic and hadronic compartments. The electromagnetic and a large fraction of the hadronic portions will be based on hexagonal silicon sensors of 0.5 – 1 cm2 cell size, with the remainder of the hadronic portion based on highly-segmented scintillators with SiPM readout. Offline clustering algorithms that make use of this extreme granularity require novel approachesto preserve the fine structure of showers and tobe stable against pileup, while supporting the particle flow approach by enhancingpileup rejection and particle identification. Wediscuss the principle and performance of a setof clusteringalgorithms for the HGCAL based on techniques borrowed from machine learning and computer vision.These algorithms lend themselves particularly well to be deployed on GPUs. The features of the algorithm, as well as an analysis of the CPU requirements in the presence of large pileup, are discussed.","PeriodicalId":155659,"journal":{"name":"2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130714540","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

Towards a fully digital state-of-the-art analog SiPM 迈向全数字化、最先进的模拟SiPM

2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2017-10-28 DOI: 10.1109/NSSMIC.2017.8533036

Andrada Muntean, E. Venialgo, S. Gnecchi, C. Jackson, E. Charbon

引用次数: 9

Deep Learning for Suppression of Resolution-Recovery Artefacts in MLEM PET Image Reconstruction 基于深度学习的MLEM PET图像重建中分辨率恢复伪影抑制

2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Pub Date : 2017-10-27 DOI: 10.1109/NSSMIC.2017.8532624

Casper O. da Luis, A. Reader

引用次数: 16