Design of the readout electronics for the DAMPE Silicon Tracker detector

The Silicon Tracker (STK) is one of the detectors of the DAMPE satellite used to measure the incidence direction of high energy cosmic rays. It consists of 6 X-Y double layers of silicon micro-strip detectors with 73728 readout channels. It is a great challenge to read out the channels and process the huge volume of data in the harsh environment of space. 1152 Application Specific Integrated Circuits (ASIC) and 384 ADCs are used to read out the detector channels. 192 Tracker Front-end Hybrid (TFH) modules and 8 identical Tracker Readout Board (TRB) modules are designed to control and digitalize the front signals. In this paper, the design of the readout electronics for the STK and its performance are presented in detail.     

硅微条探测器的辐射损伤试验

测量了硅微条探测器在辐照前后的坪曲线、脉冲高度与偏置电压的关系，及辐照后的总漏电流和黑洞的大小.     

Commissioning of the New sMDT Monitored Drift Tube Detectors for the Phase-1 Upgrade of the ATLAS Muon Spectrometer

Physics of Atomic Nuclei - The Muon Drift Tube (MDT) chambers provide very precise and reliable muon tracking and momentum measurement in the ATLAS muon spectrometer. Already in Run 2 of the LHC...     

ATLAS overview

The European Physical Journal C - ATLAS STATUS REPORT of the construction work, including for the first time a report on the ongoing underground installation work. The status of all major...     

Heavy-ion physics with the ATLAS detector

The CERN LHC collider will operate with lead ions at √s of 5.5 TeV/nucleon. The ATLAS detector, designed to study high-pT physics in the pp mode of the LHC, has the potential to study ultrarelativistic heavy-ion collisions in a full range of observables characterized extremely dense matter and the formation of a quark-gluon plasma. The ATLAS physics program includes global event measurements (particle multiplicities, transverse momentum), suppression of heavy-quarkonia production, jet quenching, and a study of ultraperipheral collisions. (on behalf of the ATLAS Collaboration) The text was submitted by the author in English.     

Development of the ATLAS Simulation Framework

Object-oriented (OO) approach is the key technology to develop a software system in the LHC/ATLAS experiment.We developed a OO simulation framework based on the Geant4 general-purpose simulation toolkit.Because of complexity of simulation in ATLAS,we payed most attention to the scalability in its design.Although the first target to apply this framework is to implement the ATLAS full detector simulation program,there is no experiment-specific code in it,therefore it can be utilized for the development of any simulation package,not only for HEP experiments but also for various different research domains ,In this paper we discuss our approach of design and implementation of the framework.     

The ATLAS trigger system

The European Physical Journal C - ATLAS is one of two general-purpose detectors at the next-generation proton–proton collider, the LHC. The high rate of interactions and the large number of...     

SUSY searches at ATLAS

Despite the absence of experimental evidence, weak scale supersymmetry remains one of the best motivated and studied Standard Model extensions. The ATLAS experiment at the LHC searches for signs of supersymmetry in a large variety of signatures involving events with abnormal production of missing transverse momentum, jets, leptons, third generation fermions, gauge bosons or massive long-lived particles. A summary of the most recent results obtained in these searches is presented.     

ATLAS fast physics monitoring

The ATLAS experiment at the Large Hadron Collider is recording data from proton?Cproton collisions at a centre-of-mass energy of 7?TeV since the spring of 2010. The integrated luminosity has grown nearly exponentially since then and continues to rise fast. The ATLAS Collaboration has set up a framework to automatically process the rapidly growing dataset and produce performance and physics plots for the most interesting analyses. The system is designed to give fast feedback. The histograms are produced within hours of data reconstruction (2?C3 days after data taking). Hints of potentially interesting physics signals obtained this way are followed up by physics groups.