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Shi Z.,Dalian University of Technology | Tang Z.,Dalian University of Technology | Tian Y.,Dalian University of Technology | Pham H.,IPHC | And 5 more authors.
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | Year: 2015

The use of CMOS Pixel Sensors (CPSs) offers a promising approach to the design of vertex detectors in High Energy Physics (HEP) experiments. As the CPS equipping the upgraded Solenoidal Tracker at RHIC (STAR) pixel detector, ULTIMATE perfectly illustrates the potential of CPSs for HEP applications. However, further development of CPSs with respect to readout speed is required to fulfill the readout time requirement of the next generation HEP detectors, such as the upgrade of A Large Ion Collider Experiment (ALICE) Inner Tracking System (ITS), the International Linear Collider (ILC), and the Compressed Baryonic Matter (CBM) vertex detectors. One actual limitation of CPSs is related to the speed of the Low-Voltage Differential Signaling (LVDS) circuitry implementing the interface between the sensor and the Data Acquisition (DAQ) system. To improve the transmission rate while keeping the power consumption at a low level, a source termination technique and a special current comparator were adopted for the LVDS driver and receiver, respectively. Moreover, hardening techniques are used. The circuitry was designed and submitted for fabrication in a 0.18-μm CMOS Image Sensor (CIS) process at the end of 2011. The test results indicated that the LVDS driver and receiver can operate properly at the data rate of 1.2 Gb/s with power consumption of 19.6 mW. © 2014 Elsevier B.V. All rights reserved.


Luleå 2016-12-01 -- Effnet AB, the leading provider of header compression software for wireless and fixed networks, today announced the launch of a new product, Effnet Modbus Header & Payload CompressionTM as a part of its Industrial Communications products portfolio. The new product compresses both header and payload of IP packets carrying Modbus protocol. Modbus is one of the most common protocols used in the industrial communications. With the transition to IP and Ethernet based communications, it has been adapted to be carried over IP with its variations such as Modbus-TCP, Modbus over TCP/IP and Modbus over UDP. The other most commonly used protocols are Common Industrial Protocol (CIP) and DNPv3. Effnet's latest product adds further value to its existing compression portfolio by compressing the Modbus header and payload. There are many advantages of using the Effnet header and payload compression portfolio: Many industries such as oil and gas, mining, utility, public safety and military, transport and government use low bandwidth (narrowband) wireless networks for applications like SCADA with monitoring and control, public services and safety, disaster relief etc. These point-to-point or point-to-multipoint networks typically use VHF or UHF and support both voice and data. On these networks, the legacy communications protocols are being replaced by protocols based on Internet standards such as Ethernet and IP. There are inherent benefits of this transition to improve connectivity, accessibility and reusability of applications at much lower costs, both capex and opex. However, there are challenges in maintaining efficient use of the available bandwidth with the added overheads of the new protocol layers and security of data and systems. "Effnet Modbus Header & Payload CompressionTM  is a strong value addition to our current product portfolio for Industrial Communications. As the industry moves to Ethernet and IP based communications networks, it has to use its radio/wireless resources efficiently and securely. Effnet is committed to deliver high quality and efficient software solutions to address these challenges faced by our customers in this area", says Aniruddha Kulkarni, Managing Director of Effnet AB. As with all other Effnet products, Effnet Modbus Header & Payload CompressionTM is a highly portable and platform independent implementation. It is a lightweight and integrated compression solution with a well-defined API. For further information, please contact: This information is information that Effnetplattformen AB is obliged to make public pursuant to the EU Market Abuse Regulation. The information was submitted for publication, through the agency of the contact person set out above, at 08:50 CET on December 1, 2016. Effnet AB, a wholly owned subsidiary of Effnetplattformen AB (publ), is a world leader in the area of IP Header Compression. Effnet develops and sells embedded software that increases the efficiency, speed and quality of IP traffic in fixed, mobile and satellite networks. For more information about Effnet and more information about its products for IP Header Compression (IPHC), Robust Header Compression (ROHC), Backhaul Header Compression (BHC) and Internet of Things (IoT) please visit www.effnet.com. Effnetplattformen AB (publ) is the parent company of a group active in advanced digital communications and in the business of investing. Effnetplattformen AB (publ) is traded on Nasdaq First North under the ticker EFFN and its certified adviser is Remium Nordic AB (www.remium.com). For further information about Effnetplattformen AB (publ) please visit www.effnetplattformen.se.


Nerlo-Pomorska B.,Maria Curie Sklodowska University | Pomorski K.,Maria Curie Sklodowska University | Schmitt C.,French Atomic Energy Commission | Bartel J.,IPHC
Physica Scripta | Year: 2014

The evolution of fragment mass distribution in low-energy fission is studied as a function of the composition of the fissioning system over a wide range, from Hg to Fm isotopes. The relative importance of symmetric and asymmetric fission modes is investigated within a static picture based on elaborate, four-dimensional potential energy spaces using the modified Funny-Hills deformation coordinates. The potential energy is computed with the macroscopic-microscopic method. The Lublin-Strasbourg drop model is used to calculate the macroscopic part of the potential energy, while the Yukawa folded single-particle potential with an improved Strutinsky method and the Bardeen-Cooper-Schrieffer theory are employed to evaluate the shell and pairing contributions to the macroscopic energy. From the analysis of the potential energy surfaces, equilibrium deformations and saddle-point shapes are determined. A coexistence of symmetric and asymmetric fission valleys is observed. The relative depth of these valleys depends on the fissioning nucleus. The valleys' competition is used to explain the evolution of the fission-fragment mass distribution, from asymmetric fission in 180Hg to symmetric fission in 260Fm. Good qualitative agreement is found with the experiment. © 2014 The Royal Swedish Academy of Sciences.


Jangal S.,IPHC | Jangal S.,Ecole des Mines de Nantes
Journal of Physics: Conference Series | Year: 2011

The ALICE collaboration is interested in measuring the ξ =ln(p jet T/p hadron T) distribution of hadrons in jets known as the Hump-backed plateau (HBP). After an introduction to color coherence effects responsible for the shape of the HBP, we discuss the ALICE capabilities to perform such a study. Preliminary results from ALICE for non corrected charged particle and jet spectra measurement in p+p collisions at √s = 900 GeV and 7 TeV are presented. Finally, we show the results of a MC based analysis of intrajet radiations. It supports the idea of jet collimation which increases with increasing jet energy as expected from QCD and show the feasability of this study with ALICE. © Published under licence by IOP Publishing Ltd.


Bogomolov S.,JINR | Bondarchenko A.,JINR | Efremov A.,JINR | Kuzmenkov K.,JINR | And 7 more authors.
24th Russian Particle Accelerator Conference, RuPAC 2014 | Year: 2014

The production of metal ion beams with ECR ion sources using MIVOC method is described. The method is based on the use of metal compounds having a high vapor pressure at room temperature: for example, C2B10H12, Fe(C5H5)2 and several others. Intense ion beams of B and Fe were produced at the FLNR JINR cyclotrons using this method. The main efforts were went into production and acceleration of 50Ti ion beam at the U-400 cyclotron. The experiments on production of 50Ti ion beam were performed at the test bench with the natural and enriched compounds of titanium (CH3)5C5Ti(CH3)3. In the experiments at the test bench the beam currents of 50Ti5+ - 80 mkA and 48Ti11+ - 70 mkA were achieved at different settings of the source. After successful tests two 3 weeks runs with Ti-50 beam were performed at the U-400 cyclotron for the experiments on spectroscopy of super heavy elements. The intensity of the injected beam of 50Ti5+ was about of 50-60 μA, during experiment the source have shown stable operation. The compound consumption rate was determined to be about of 2.4 mg/h, corresponding to 50Ti consumption of 0.52 mg/h. © 2014 CC-BY-3.0 and by the respective authors.


Degerli Y.,CEA Saclay Nuclear Research Center | Bertolone G.,IPHC | Claus G.,IPHC | Dorokhov A.,IPHC | And 9 more authors.
IEEE Transactions on Nuclear Science | Year: 2013

A CMOS sensor chip for charged particle detection has been developed and submitted for fabrication in a 0.18 um Quadruple-Well (N&P-Wells, Deep N&P-Wells) CMOS Image Sensor (CIS) process. Improvement of the radiation hardness, the power dissipation and the readout speed of the mainstream CMOS sensors is expected with the exploration of this process. In order to ensure better charge collection and neutron tolerance, wafers with high-resistivity epitaxial layer have been chosen. In this paper a digital CMOS sensor prototype developed in order to validate the key analog blocks (from sensing element to 1-bit digital conversion) of a binary Monolithic Active Pixel Sensor (MAPS) in this process will be presented. The digital sensor prototype comprises four different sub-arrays of 20 mu m pitch 64 32 pixels, 128 column-level auto-zeroed discriminators, a sequencer and an output digital multiplexer. Laboratory tests results including the charge-to-voltage conversion factor, the charge collection efficiency, the temporal noise and the fixed-pattern noise are presented in details. Some irradiation results will also be given. © 1963-2012 IEEE.


Bisch C.,CEA Saclay Nuclear Research Center | Mougeot X.,CEA Saclay Nuclear Research Center | Be M.-M.,CEA Saclay Nuclear Research Center | Nourreddine A.-M.,IPHC
Nuclear Data Sheets | Year: 2014

A system for the measurement of beta energy spectra has been developed. It is based on a silicon semi-conductor detector operating at liquid nitrogen temperatures, under ultra high-vacuum. Monte-Carlo simulations were made to optimize the detection chamber and the source holder. Descriptions of the electronic and mechanical systems are included, as well as the first measured spectra. © 2014 Elsevier Inc.


Ferro C.,IPHC
EPJ Web of Conferences | Year: 2012

The identification of b jets is a crucial issue to study and characterize various channels like top quark events and many new physics scenarios. Different b-tagging techniques are defined in CMS which benefit from the long life time, high mass and large momentum fraction of the b-hadron produced in b-quark jet. Efficient algorithms have been developed based on the measure of b-hadron secondary vertex or on tracks with a large impact parameter. Data collected in pp collisions at √s=7TeV in 2011 are used to estimate both the b-tagging efficiency and the mistag rate from light flavor jets. © Owned by the authors 2012.


Jollet C.,IPHC | Meregaglia A.,IPHC
European Strategy for Future Neutrino Physics 2009, Proceedings | Year: 2010

AO OPERA is an hybrid detector for the νr appearance search in a direct way, and the Electronic Detectors (ED) have the crucial role of triggerring for the neu- trino events and of localizing such an interaction inside the target. Another very important task of the ED is to identify the muon since only a correct matching of such a track with a track in the emulsion connected to the vertex of the event allows to reduce the charm background to the desired level. The ED, fully working since 2006, consist of a target tracker (scintillator strips) and a spectrometer (RPC and drift tubes). The different sub-detectors are described in the poster, as well as their performance both on Monte Carlo (MC) and real data.


Winter M.,IPHC
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | Year: 2010

Main achievements of more than one decade of CMOS pixel sensor R&D for charged particle tracking are reviewed in this paper, together with the goals driving present R&D activities, i.e. read-out speed and radiation tolerance. A fast read-out sensor developed for the EUDET beam telescope and the STAR vertex detector is described as well as its first test results. Preliminary results are also provided on non-ionising radiation tolerance improvements offered by CMOS processes featuring a depleted epitaxial layer. Finally, the recent access to 3D Integration Technologies, which alleviate most essential CMOS sensor's limitations, has translated into 2- and 3-tier sensor designs, to be fabricated in Spring 2009. Their main design features and expected performances are reviewed. © 2010 Elsevier B.V. All rights reserved.

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