[ { "id": "authors:mty62-z4e94", "collection": "authors", "collection_id": "mty62-z4e94", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20220127-497989000", "type": "book_section", "title": "Illinois Express Quantum Network for Distributing and Controlling Entanglement on Metro-Scale", "book_title": "2021 IEEE/ACM Second International Workshop on Quantum Computing Software (QCS)", "author": [ { "family_name": "Wu", "given_name": "Wenji", "clpid": "Wu-Wenji" }, { "family_name": "Chung", "given_name": "Joaquin", "clpid": "Chung-Joaquin" }, { "family_name": "Kanter", "given_name": "Gregory", "clpid": "Kanter-Gregory" }, { "family_name": "Lauk", "given_name": "Nikolai", "orcid": "0000-0002-6397-1221", "clpid": "Lauk-Nikolai" }, { "family_name": "Valivarthi", "given_name": "Raju", "orcid": "0000-0002-5422-9340", "clpid": "Valivarthi-Raju" }, { "family_name": "Ceballos", "given_name": "Russell R.", "clpid": "Ceballos-Russell-R" }, { "family_name": "Pe\u00f1a", "given_name": "Cristi\u00e1n", "orcid": "0000-0002-4500-7930", "clpid": "Pe\u00f1a-Cristi\u00e1n-H" }, { "family_name": "Sinclair", "given_name": "Neil", "clpid": "Sinclair-Neil" }, { "family_name": "Thomas", "given_name": "Jordan M.", "clpid": "Thomas-Jordan-M" }, { "family_name": "Eastman", "given_name": "Ely M.", "clpid": "Eastman-Ely-M" }, { "family_name": "Xie", "given_name": "Si", "orcid": "0000-0003-2509-5731", "clpid": "Xie-Si" }, { "family_name": "Kettimuthul", "given_name": "Rajkumar", "clpid": "Kettimuthul-Rajkumar" }, { "family_name": "Kumar", "given_name": "Prem", "orcid": "0000-0002-2460-1105", "clpid": "Kumar-Prem" }, { "family_name": "Spentzouris", "given_name": "Panagiotis", "clpid": "Spentzouris-Panagiotis" }, { "family_name": "Spiropulu", "given_name": "Maria", "orcid": "0000-0001-8172-7081", "clpid": "Spiropulu-M" } ], "abstract": "We describe an implementation of a quantum network over installed fiber in the Chicago area. We present network topology and control architecture of this network and illustrate preliminary results for quantum teleportation and coexistence of quantum and classical data on the same fiber link.", "doi": "10.1109/qcs54837.2021.00008", "isbn": "978-1-7281-8674-0", "publisher": "IEEE", "place_of_publication": "Piscataway, NJ", "publication_date": "2021-11-15", "pages": "35-42" }, { "id": "authors:w8q4c-fkq16", "collection": "authors", "collection_id": "w8q4c-fkq16", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20210518-092623444", "type": "book_section", "title": "Diolkos: improving ethernet throughput through dynamic port selection", "book_title": "Proceedings of the 18th ACM International Conference on Computing Frontiers", "author": [ { "family_name": "Bel", "given_name": "Oceane", "clpid": "Bel-Oceane" }, { "family_name": "Pata", "given_name": "Joosep", "clpid": "Pata-Joosep" }, { "family_name": "Vlimant", "given_name": "Jean-Roch", "orcid": "0000-0002-9705-101X", "clpid": "Vlimant-Jean-Roch" }, { "family_name": "Tallent", "given_name": "Nathan", "clpid": "Tallent-Nathan" }, { "family_name": "Balcas", "given_name": "Justas", "clpid": "Balcas-Justas" }, { "family_name": "Spiropulu", "given_name": "Maria", "orcid": "0000-0001-8172-7081", "clpid": "Spiropulu-M" } ], "abstract": "In large networked systems, a sudden increase in traffic could slowdown the network significantly, impacting network quality for multiple users. We present Diolkos, a system that leverages smart switches to dynamically re-reroute data flows in response to drops in performance. In contrast to other techniques, our tool predicts the future throughput at each port in a switch if a data flow were to be sent through it, and updates which port should be taken to maximize throughput. We use several techniques to predict network switch performance on a software defined network (SDN) mimicking topologies commonly found in datacenters. Experimentally, we demonstrate the effectiveness of choosing a port to send flows through based on predicted performance. We found that using a distributed predictive technique achieves a 24% improvement over using a traditional heuristic technique.", "doi": "10.1145/3457388.3458659", "isbn": "978-1-4503-8404-9", "publisher": "Association for Computing Machinery", "place_of_publication": "New York, NY", "publication_date": "2021-05-11", "pages": "83-92" }, { "id": "authors:z9yr5-y8w65", "collection": "authors", "collection_id": "z9yr5-y8w65", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20220105-55761300", "type": "book_section", "title": "Impedance-matched differential SNSPDs for practical photon counting with sub-10 ps timing jitter", "book_title": "2021 Conference on Lasers and Electro-Optics (CLEO)", "author": [ { "family_name": "Colangelo", "given_name": "Marco", "orcid": "0000-0001-7611-0351", "clpid": "Colangelo-Marco" }, { "family_name": "Beyer", "given_name": "Andrew", "clpid": "Beyer-Andrew-D" }, { "family_name": "Korzh", "given_name": "Boris", "orcid": "0000-0002-8262-9720", "clpid": "Korzh-Boris-A" }, { "family_name": "Allmaras", "given_name": "Jason P.", "orcid": "0000-0001-9621-289X", "clpid": "Allmaras-Jason-P" }, { "family_name": "Mueller", "given_name": "Andrew", "clpid": "Mueller-Andrew" }, { "family_name": "Briggs", "given_name": "Ryan M.", "clpid": "Briggs-Ryan-M" }, { "family_name": "Bumble", "given_name": "Bruce", "clpid": "Bumble-Bruce" }, { "family_name": "Runyan", "given_name": "Marcus", "clpid": "Runyan-Marcus-C" }, { "family_name": "Stevens", "given_name": "Martin J.", "clpid": "Stevens-Martin-J" }, { "family_name": "McCaughan", "given_name": "Adam", "clpid": "McCaughan-Adam" }, { "family_name": "Zhu", "given_name": "Di", "clpid": "Zhu-Di" }, { "family_name": "Smith", "given_name": "Steve", "clpid": "Smith-Steve" }, { "family_name": "Becker", "given_name": "Wolfgang", "clpid": "Becker-Wolfgang" }, { "family_name": "Narv\u00e1ez", "given_name": "Lautaro", "orcid": "0000-0003-2708-8754", "clpid": "Narv\u00e1ez-Lautaro" }, { "family_name": "Bienfang", "given_name": "Joshua C.", "clpid": "Bienfang-Joshua-C" }, { "family_name": "Frasca", "given_name": "Simone", "orcid": "0000-0002-3741-2215", "clpid": "Frasca-Simone" }, { "family_name": "Velasco", "given_name": "Angel E.", "clpid": "Velasco-Angel-E" }, { "family_name": "Ramirez", "given_name": "Edward", "clpid": "Ramirez-Edward" }, { "family_name": "Walter", "given_name": "Alexander", "clpid": "Walter-Alexander" }, { "family_name": "Schmidt", "given_name": "Ekkehart", "clpid": "Schmidt-Ekkehart" }, { "family_name": "Wollman", "given_name": "Emma E.", "clpid": "Wollman-Emma-E" }, { "family_name": "Pe\u00f1a", "given_name": "Cristi\u00e1n", "orcid": "0000-0002-4500-7930", "clpid": "Pe\u00f1a-Cristi\u00e1n-H" }, { "family_name": "Spiropulu", "given_name": "Maria", "orcid": "0000-0001-8172-7081", "clpid": "Spiropulu-M" }, { "family_name": "Mirin", "given_name": "Richard P.", "clpid": "Mirin-Richard-P" }, { "family_name": "Nam", "given_name": "Sae Woo", "clpid": "Nam-Sae-Woo" }, { "family_name": "Berggren", "given_name": "Karl K.", "orcid": "0000-0001-7453-9031", "clpid": "Berggren-Karl-K" }, { "family_name": "Shawkey", "given_name": "Matthew D.", "orcid": "0000-0002-5131-8209", "clpid": "Shawkey-Matthew-D" } ], "abstract": "We demonstrate large-area superconducting nanowire single-photon detectors (SNSPDs) with simultaneous high system detection efficiency and low system jitter. We describe the device architecture and discuss optimal readout setup for practical applications.", "doi": "10.1364/cleo_qels.2021.fw2p.1", "isbn": "978-1-943580-91-0", "publisher": "Optical Society of America", "place_of_publication": "Washington, DC", "publication_date": "2021-05", "pages": "Art. No. FW2P.1" }, { "id": "authors:vf0ts-kpy53", "collection": "authors", "collection_id": "vf0ts-kpy53", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20211021-203239861", "type": "book_section", "title": "Illinois Express Quantum Network (IEQNET): metropolitan-scale experimental quantum networking over deployed optical fiber", "author": [ { "family_name": "Chung", "given_name": "Joaquin", "clpid": "Chung-Joaquin" }, { "family_name": "Kanter", "given_name": "Gregory", "clpid": "Kanter-Gregory" }, { "family_name": "Lauk", "given_name": "Nikolai", "orcid": "0000-0002-6397-1221", "clpid": "Lauk-Nikolai" }, { "family_name": "Valivarthi", "given_name": "Raju", "orcid": "0000-0002-5422-9340", "clpid": "Valivarthi-Raju" }, { "family_name": "Wu", "given_name": "Wenji", "clpid": "Wu-Wenji" }, { "family_name": "Ceballos", "given_name": "Russell R.", "clpid": "Ceballos-Russell-R" }, { "family_name": "Pe\u00f1a", "given_name": "Cristi\u00e1n", "orcid": "0000-0002-4500-7930", "clpid": "Pe\u00f1a-Cristi\u00e1n-H" }, { "family_name": "Sinclair", "given_name": "Neil", "clpid": "Sinclair-Neil" }, { "family_name": "Thomas", "given_name": "Jordan", "clpid": "Thomas-Jordan" }, { "family_name": "Xie", "given_name": "Si", "orcid": "0000-0003-2509-5731", "clpid": "Xie-Si" }, { "family_name": "Kettimuthul", "given_name": "Rajkumar", "clpid": "Kettimuthul-Rajkumar" }, { "family_name": "Kumar", "given_name": "Prem", "clpid": "Kumar-Prem" }, { "family_name": "Spentzouris", "given_name": "Panagiotis", "clpid": "Spentzouris-Panagiotis" }, { "family_name": "Spiropulu", "given_name": "Maria", "orcid": "0000-0001-8172-7081", "clpid": "Spiropulu-M" } ], "contributor": [ { "family_name": "Donkor", "given_name": "Eric", "clpid": "Donkor-Eric" }, { "family_name": "Hayduk", "given_name": "Michael", "clpid": "Hayduk-Michael" } ], "abstract": "The Illinois Express Quantum Network (IEQNET) is a program to realize metro-scale quantum networking over deployed optical fiber using currently available technology. IEQNET consists of multiple sites that are geographically dispersed in the Chicago metropolitan area. Each site has one or more quantum nodes (Qnodes) representing the communication parties in a quantum network. Q-nodes generate or measure quantum signals such as entangled photons and communicate the results via standard, classical, means. The entangled photons in IEQNET nodes are generated at multiple wavelengths, and are selectively distributed to the desired users via optical switches. Here we describe the network architecture of IEQNET, including the Internet-inspired layered hierarchy that leverages software-defined-networking (SDN) technology to perform traditional wavelength routing and assignment between the Q-nodes. Specifically, SDN decouples the control and data planes, with the control plane being entirely classical. Issues associated with synchronization, calibration, network monitoring, and scheduling will be discussed. An important goal of IEQNET is demonstrating the extent to which the control plane can coexist with the data plane using the same fiber lines. This goal is furthered by the use of tunable narrow-band optical filtering at the receivers and, at least in some cases, a wide wavelength separation between the quantum and classical channels. We envision IEQNET to aid in developing robust and practical quantum networks by demonstrating metro-scale quantum communication tasks such as entanglement distribution and quantum-state teleportation.", "doi": "10.1117/12.2588007", "publisher": "Society of Photo-optical Instrumentation Engineers", "publication_date": "2021-04-12" }, { "id": "authors:t33j9-b2223", "collection": "authors", "collection_id": "t33j9-b2223", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20180816-101633176", "type": "book_section", "title": "Precision Timing Detectors with Cadmium Telluride Sensors", "book_title": "Proceedings of International Conference on Technology and Instrumentation in Particle Physics 2017", "author": [ { "family_name": "Bornheim", "given_name": "Adi", "orcid": "0000-0002-0128-0871", "clpid": "Bornheim-A" }, { "family_name": "Mao", "given_name": "Jiajing", "clpid": "Mao-Jiajing" }, { "family_name": "Mangu", "given_name": "Aashrita", "clpid": "Mangu-A" }, { "family_name": "Pena", "given_name": "Cristian", "clpid": "Pena-C" }, { "family_name": "Spiropulu", "given_name": "Maria", "orcid": "0000-0001-8172-7081", "clpid": "Spiropulu-M" }, { "family_name": "Xie", "given_name": "Si", "orcid": "0000-0003-2509-5731", "clpid": "Xie-Si" }, { "family_name": "Zhang", "given_name": "Zhicai", "orcid": "0000-0002-1630-0986", "clpid": "Zhang-Zhicai" } ], "contributor": [ { "family_name": "Liu", "given_name": "Zhen-An", "clpid": "Liu-Zhen-An" } ], "abstract": "Precision timing detectors for high energy physics experiments with temporal resolutions of a few 10 ps are of pivotal importance to master the challenges posed by the highest energy particle accelerators. Calorimetric timing measurements have been a focus of recent research, enabled by exploiting the temporal coherence of electromagnetic showers. Scintillating crystals with high light yield as well as silicon sensors are viable sensitive materials for sampling calorimeters. Silicon sensors have very high efficiency for charged particles. However, their sensitivity to photons, which comprise a large fraction of the electromagnetic shower, is limited. A large fraction of the energy in an electromagnetic shower is carried by photons. To enhance the efficiency of detecting photons, materials with higher atomic numbers than silicon are preferable. In this paper we present test beam measurements with a Cadmium-Telluride sensor as the active element of a secondary emission calorimeter with focus on the timing performance of the detector. A Schottky type Cadmium-Telluride sensor with an active area of 1 cm2 and a thickness of 1 mm is used in an arrangement with tungsten and lead absorbers. Measurements are performed with electron beams in the energy range from 2 GeV to 200 GeV. A timing resolution of 20 ps is achieved under the best conditions.", "doi": "10.1007/978-981-13-1316-5_10", "isbn": "978-981-13-1315-8", "publisher": "Springer", "place_of_publication": "Singapore", "publication_date": "2018-08-08", "pages": "56-60" }, { "id": "authors:m22b3-pjp28", "collection": "authors", "collection_id": "m22b3-pjp28", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20181126-154925497", "type": "book_section", "title": "Precision Timing Detectors with Cadmium Telluride Sensors", "book_title": "2017 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)", "author": [ { "family_name": "Anderson", "given_name": "Dustin", "clpid": "Anderson-D" }, { "family_name": "Bornheim", "given_name": "Adi", "orcid": "0000-0002-0128-0871", "clpid": "Bornheim-A" }, { "family_name": "Mangu", "given_name": "Aashrita", "clpid": "Mangu-A" }, { "family_name": "Mao", "given_name": "Jiajing", "clpid": "Mao-Jiajing" }, { "family_name": "Pena", "given_name": "Cristian", "clpid": "Pena-C" }, { "family_name": "Spiropulu", "given_name": "Maria", "orcid": "0000-0001-8172-7081", "clpid": "Spiropulu-M" }, { "family_name": "Xie", "given_name": "Si", "orcid": "0000-0003-2509-5731", "clpid": "Xie-Si" }, { "family_name": "Zhang", "given_name": "Zhicai", "orcid": "0000-0002-1630-0986", "clpid": "Zhang-Zhicai" } ], "abstract": "Precision timing properties of high energy physics detectors in high luminosity colliders has become an important requirement for the success of particle detection, of which new calorimeter with timing precision of few tens of ps is the main interest. In this paper, we presented the first calorimetry and timing performance measurement of Cadmium-Telluride (CdTe) as the active material of sampling calorimeter, using 2 GeV to 200 GeV electron beam from CERN beamlines. A good energy performance is achieved due to the better sensitivity of CdTe to X ray photons in the secondary shower than other semi-conducting sensors such as silicon. The timing resolution of the tested CdTe sensor is measured to be down to 21 ps under the best conditions.", "doi": "10.1109/NSSMIC.2017.8532848", "isbn": "978-1-5386-2282-7", "publisher": "IEEE", "place_of_publication": "Piscataway, NJ", "publication_date": "2017-10", "pages": "1-2" }, { "id": "authors:xxdnh-jfv88", "collection": "authors", "collection_id": "xxdnh-jfv88", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20180122-094039689", "type": "book_section", "title": "Comparative Test Beam Studies of Precision Timing Calorimeter Technologies", "book_title": "2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)", "author": [ { "family_name": "Bornheim", "given_name": "A.", "orcid": "0000-0002-0128-0871", "clpid": "Bornheim-A" }, { "family_name": "Anderson", "given_name": "D.", "clpid": "Anderson-D" }, { "family_name": "Apresyan", "given_name": "A.", "orcid": "0000-0002-6186-0130", "clpid": "Apresyan-A" }, { "family_name": "Duarte", "given_name": "J.", "clpid": "Duarte-J" }, { "family_name": "Pe\u00f1a", "given_name": "C.", "clpid": "Pe\u00f1a-C" }, { "family_name": "Ronzhin", "given_name": "A.", "clpid": "Ronzhin-A" }, { "family_name": "Spiropulu", "given_name": "M.", "orcid": "0000-0001-8172-7081", "clpid": "Spiropulu-M" }, { "family_name": "Xie", "given_name": "S.", "orcid": "0000-0003-2509-5731", "clpid": "Xie-Si" }, { "family_name": "Los", "given_name": "S.", "clpid": "Los-S" }, { "family_name": "Zhang", "given_name": "Z.", "orcid": "0000-0002-1630-0986", "clpid": "Zhang-Zhicai" }, { "family_name": "Hassanshahi", "given_name": "M.", "clpid": "Hassanshahi-M" } ], "abstract": "Current and future high energy physics particle colliders are capable to provide instantaneous luminosities of 10^(34) cm^(-2) s^(-1) and above. The high center of mass energy, the large number of simultaneous collision of beam particles in the experiments and the very high repetition rates of the collision events pose huge challenges. They result in extremely high particle fluxes, causing very high occupancies in the particle physics detectors operating at these machines. To reconstruct the physics events, the detectors have to make as much information as possible available on the final state particles. We discuss different detector concepts which can provide time measurements for charged particles and photons with a precision in the range of a few 10 ps. We present in detail measurements utilizing Lutetiumyttrium oxyorthosilicate (LYSO) based calorimeter prototype. With an improved understanding of the signal creation, light propagation and detection characteristics we achieve a precision of down to 30 ps for electrons with energies of 30 GeV. Further we present beam test measurements with a multichannel plate based detectors and studies using semi-conductor based detectors. We discuss possible implementations based on these different technologies in a large scale particle physics detector for the high luminosity LHC (HL-LHC).", "doi": "10.1109/NSSMIC.2016.8069874", "isbn": "978-1-5090-1643-3", "publisher": "IEEE", "place_of_publication": "Piscataway, NJ", "publication_date": "2016-11", "pages": "1-4" }, { "id": "authors:brw8q-hfx17", "collection": "authors", "collection_id": "brw8q-hfx17", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20160823-093448708", "type": "book_section", "title": "SDN next generation integrated architecture for HEP and global science", "book_title": "2016 Optical Fiber Communications Conference and Exhibition (OFC)", "author": [ { "family_name": "Newman", "given_name": "H.", "orcid": "0000-0003-0964-1480", "clpid": "Newman-H-B" }, { "family_name": "Spiropulu", "given_name": "M.", "orcid": "0000-0001-8172-7081", "clpid": "Spiropulu-M" }, { "family_name": "Balcas", "given_name": "J.", "clpid": "Balcas-J" }, { "family_name": "Kcira", "given_name": "D.", "orcid": "0000-0002-8190-2414", "clpid": "Kcira-D" }, { "family_name": "Legrand", "given_name": "I.", "clpid": "Legrand-I" }, { "family_name": "Mughal", "given_name": "A.", "clpid": "Mughal-A" }, { "family_name": "Vlimant", "given_name": "J. R.", "clpid": "Vlimant-J-R" }, { "family_name": "Voicu", "given_name": "R.", "clpid": "Voicu-R" } ], "abstract": "I describe a software-defined global system under development by Caltech and partner network teams in support of the LHC and other major science programs that coordinates workflows among hundreds of multi-petabyte data stores and petascale computing facilities interlinked by 100 Gbps networks, and the Exascale systems needed by the next decade.", "isbn": "978-1-943580-07-1", "publisher": "IEEE", "place_of_publication": "Piscataway, NJ", "publication_date": "2016-03", "pages": "1-3" }, { "id": "authors:ntv29-2mz81", "collection": "authors", "collection_id": "ntv29-2mz81", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20161012-110339515", "type": "book_section", "title": "Studies of Wavelength-Shifting Liquid Filled Quartz Capillaries for Use in a Proposed CMS Calorimeter", "book_title": "Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2015", "author": [ { "family_name": "Baumbaugh", "given_name": "B.", "clpid": "Baumbaugh-B" }, { "family_name": "Bornheim", "given_name": "A.", "orcid": "0000-0002-0128-0871", "clpid": "Bornheim-A" }, { "family_name": "Newman", "given_name": "H. B.", "orcid": "0000-0003-0964-1480", "clpid": "Newman-H-B" }, { "family_name": "Spiropulu", "given_name": "M.", "orcid": "0000-0001-8172-7081", "clpid": "Spiropulu-M" }, { "family_name": "Yang", "given_name": "F.", "clpid": "Yang-Fan" }, { "family_name": "Zhang", "given_name": "L.", "orcid": "0000-0002-0898-787X", "clpid": "Zhang-Liyuan" }, { "family_name": "Zhu", "given_name": "R. Y.", "orcid": "0000-0003-3091-7461", "clpid": "Zhu-Ren-Yuan" } ], "abstract": "Studies have been done and continue on the design and construction of a Shashlik detector using Radiation hard quartz capillaries filled with wavelength shifting liquid to collect the scintillation light from LYSO crystals for use as a calorimeter in the Phase II CMS upgrade at CERN. The work presented here focuses on the studies of the capillaries and liquids that would best suit the purpose of the detector. Comparisons are made of various liquids, concentrations, and capillary construction techniques will be discussed.", "doi": "10.1109/NSSMIC.2015.7581951", "isbn": "978-1-4673-9862-6", "publisher": "IEEE", "place_of_publication": "Piscataway, NJ", "publication_date": "2015-11", "pages": "1-6" }, { "id": "authors:c815x-eeb61", "collection": "authors", "collection_id": "c815x-eeb61", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20161012-101530229", "type": "book_section", "title": "Studies towards a precision timing calorimeter for high energy physics collider experiments", "book_title": "Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2015", "author": [ { "family_name": "Anderson", "given_name": "Dustin", "clpid": "Anderson-Dustin" }, { "family_name": "Apresyan", "given_name": "Artur", "orcid": "0000-0002-6186-0130", "clpid": "Apresyan-A" }, { "family_name": "Bornheim", "given_name": "Adolf", "orcid": "0000-0002-0128-0871", "clpid": "Bornheim-A" }, { "family_name": "Duarte", "given_name": "Javier", "clpid": "Duarte-Javier" }, { "family_name": "Pe\u00f1a", "given_name": "Cristi\u00e1n", "clpid": "Pe\u00f1a-Cristi\u00e1n" }, { "family_name": "Ronzhin", "given_name": "Anatoly", "clpid": "Ronzhin-A" }, { "family_name": "Spiropulu", "given_name": "Maria", "orcid": "0000-0001-8172-7081", "clpid": "Spiropulu-M" }, { "family_name": "Trevor", "given_name": "Jason", "clpid": "Trevor-Jason-M" }, { "family_name": "Xie", "given_name": "Si", "orcid": "0000-0003-2509-5731", "clpid": "Xie-Si" } ], "abstract": "Current and future high energy physics particle colliders are capable to provide instantaneous luminosities of 10^(34)cm^(\u22122)s^(\u22121) and above. The high center of mass energy, the large number of simultaneous collision of beam particles in the experiments and the very high repetition rates of the collision events pose huge challenges. They result in extremely high particle fluxes, causing very high occupancies in the particle physics detectors operating at these machines. To reconstruct the physics events, the detectors have to make as much information as possible available on the final state particles. We briefly discuss how timing information with a precision of around 10 ps and below can aid the reconstruction of the physics events under such challenging conditions. We discuss different detector concepts which can provide time measurements for charged particles and photons with a precision in the range of a few 10 ps. We present in detail updated measurements utilizing a Lutetium-yttrium oxyorthosilicate (LYSO) based calorimeter prototype. With an improved understanding of the signal creation, light propagation and detection characteristics we achieve a precision of down to 30 ps for electrons with energies of 30 GeV. Further we present beam test measurements with a multichannel plate based detectors and studies using silicon detectors. We discuss possible implementations based on these different technologies in a large scale particle physics detector.", "doi": "10.1109/NSSMIC.2015.7581887", "isbn": "978-1-4673-9862-6", "publisher": "IEEE", "place_of_publication": "Piscataway, NJ", "publication_date": "2015-11", "pages": "1-3" }, { "id": "authors:1q0tn-rkg35", "collection": "authors", "collection_id": "1q0tn-rkg35", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20181212-103952581", "type": "book_section", "title": "CMS Object-Oriented Simulation", "book_title": "IEEE Nuclear Science Symposium Conference Record, 2005", "author": [ { "family_name": "Abdoulline", "given_name": "S.", "clpid": "Abdoulline-S" }, { "family_name": "Spiropulu", "given_name": "M.", "orcid": "0000-0001-8172-7081", "clpid": "Spiropulu-M" }, { "family_name": "Wilkinson", "given_name": "R.", "clpid": "Wilkinson-R" } ], "abstract": "The CMS object oriented Geant4-based program is used to simulate the complete central CMS detector (over 1 million geometrical volumes) and the forward systems such as the Totem telescopes, Castor calorimeter, zero degree calorimeter, Roman pots, and the luminosity monitor. The simulation utilizes the full set of electromagnetic and hadronic physics processes provided by Geant4 and detailed particle tracking in the 4 tesla magnetic field. Electromagnetic shower parameterization can be used instead of full tracking of high-energy electrons and positrons, allowing significant gains in speed without detrimental precision losses. The simulation physics has been validated by comparisons with test beam data and previous simulation results. The system has been in production for almost two years and has delivered over 100 million events for various LHC physics channels. Productions are run on the US and EU grids at a rate of 3-5 million events per month. At the same time, the simulation has evolved to fulfill emerging requirements for new physics simulations, including very large heavy ion events and a variety of SUSY scenarios. The software has also undergone major technical upgrades. The framework and core services have been ported to the new CMS offline software architecture and event data model. In parallel, the program is subjected to ever more stringent quality assurance procedures, including a recently commissioned automated physics validation suite", "doi": "10.1109/nssmic.2005.1596421", "isbn": "0780392213", "publisher": "IEEE", "place_of_publication": "Piscataway, NJ", "publication_date": "2005-10", "pages": "995-999" }, { "id": "authors:2mmsw-tbc76", "collection": "authors", "collection_id": "2mmsw-tbc76", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20181212-103952853", "type": "book_section", "title": "Test stand for the Silicon Vertex Detector of the Collider Detector Facility", "book_title": "1995 IEEE Nuclear Science Symposium and Medical Imaging Conference Record", "author": [ { "family_name": "Zimmermann", "given_name": "S.", "clpid": "Zimmermann-S" }, { "family_name": "Anderson", "given_name": "J.", "clpid": "Anderson-J" }, { "family_name": "Andresen", "given_name": "J.", "clpid": "Andresen-J" }, { "family_name": "Barsotti", "given_name": "E.", "clpid": "Barsotti-E" }, { "family_name": "Chramowicz", "given_name": "J.", "clpid": "Chramowicz-J" }, { "family_name": "Duerling", "given_name": "G.", "clpid": "Duerling-G" }, { "family_name": "Gao", "given_name": "M.", "clpid": "Gao-M" }, { "family_name": "Gonzalez", "given_name": "H.", "clpid": "Gonzalez-H" }, { "family_name": "Haynes", "given_name": "B.", "clpid": "Haynes-B" }, { "family_name": "Knopf", "given_name": "W.", "clpid": "Knopf-W" }, { "family_name": "Treptow", "given_name": "K.", "clpid": "Treptow-K" }, { "family_name": "Walsh", "given_name": "D.", "clpid": "Walsh-D" }, { "family_name": "Zmuda", "given_name": "T.", "clpid": "Zmuda-T" }, { "family_name": "Huffman", "given_name": "T.", "clpid": "Huffman-T" }, { "family_name": "Shepard", "given_name": "P.", "clpid": "Shepard-P" }, { "family_name": "Gay", "given_name": "C.", "clpid": "Gay-C" }, { "family_name": "Harder", "given_name": "S.", "clpid": "Harder-S" }, { "family_name": "Hill", "given_name": "H.", "clpid": "Hill-H" }, { "family_name": "Huth", "given_name": "J.", "clpid": "Huth-J-H" }, { "family_name": "O'Kane", "given_name": "J.", "clpid": "O'Kane-J" }, { "family_name": "Oliver", "given_name": "J.", "clpid": "Oliver-J" }, { "family_name": "Robins", "given_name": "H.", "clpid": "Robins-H" }, { "family_name": "Spiropulu", "given_name": "M.", "orcid": "0000-0001-8172-7081", "clpid": "Spiropulu-M" }, { "family_name": "Strohmer", "given_name": "R.", "clpid": "Strohmer-R" }, { "family_name": "Gold", "given_name": "M.", "clpid": "Gold-M" }, { "family_name": "Thomas", "given_name": "T.", "clpid": "Thomas-T" } ], "abstract": "A test stand for the next generation of the Silicon Vertex Detector (SVX-II) of the Collider Detector Facility (CDF) at Fermilab has been developed. It is capable of performing cosmic ray, beam, and laser pulsing tests on silicon strip detectors using the new generation of SVX chips. The test stand is composed of a SGI workstation, a VME CPU, the Silicon Test Acquisition and Readout (STAR) board, the Test Fiber Interface Board (TFIB), and the Test Port Card (TPC). The STAR mediates between external stimuli for the different tests and produces appropriate high level commands which are sent to the TFIB. The TFIB, in conjunction with the TPC, translates these commands into the correct logic levels to control the SVX chips. The four modes of operation of the SVX chips are configuration, data acquisition, digitization, and data readout. The data read out from the SVX chips is transferred to the STAR. The STAR can then be accessed by the VME CPU and the SGI workstation for future analyses. The detailed description of this test stand is given.", "doi": "10.1109/nssmic.1995.504316", "isbn": "078033180X", "publisher": "IEEE", "place_of_publication": "Piscataway, NJ", "publication_date": "1995-10", "pages": "528-532" } ]