BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:A Time Projection Chamber for the International Linear Collider DTSTART;VALUE=DATE-TIME:20140226T022500Z DTEND;VALUE=DATE-TIME:20140226T025000Z DTSTAMP;VALUE=DATE-TIME:20260513T221426Z UID:indico-contribution-4-4@indico.inp.nsk.su DESCRIPTION:Speakers: Paul Colas (CEA/Irfu Saclay)\nThe International Larg e Detector (ILD) is one detector concept at the ILC where calorimetry and tracking systems are combined. The tracking system consists of a vertex de tector and a large volume Time Projection Chamber (TPC). \nWithin the fram ework of the LCTPC collaboration\, a Large Prototype (LP) TPC has been bui lt as a demonstrator. Its endplate is able to contain up to seven identica l Micro-Pattern Gas Detector (MPGD) modules. Recently\, the LP has been co mpletely equipped with resistive anode Micromegas (MM) and Gas Electron Mu ltiplier (GEM) modules. Both the MM and GEM technologies have been studied with a 5 GeV electron beam in a 1 Tesla magnet. After introducing the LP\ , the current status\, recent results (spatial resolution\, field distorti ons\, estimates of the effect of ion backflow on the track) and the effort towards electronic integration and cooling by 2-phase CO₂ will be prese nted. \nFuture plans of the LCTPC R&D with MM and GEM will be shown\, with in the 'fast track' hypothesis of a global effort to timely build the ILC in Japan. Readiness of the various components and open issues will be disc ussed.\n\nhttps://indico.inp.nsk.su/event/0/contributions/4/ LOCATION: URL:https://indico.inp.nsk.su/event/0/contributions/4/ END:VEVENT BEGIN:VEVENT SUMMARY:Past & Future of the Silicon-On-Insulator Pixel Detector DTSTART;VALUE=DATE-TIME:20140225T073000Z DTEND;VALUE=DATE-TIME:20140225T075500Z DTSTAMP;VALUE=DATE-TIME:20260513T221426Z UID:indico-contribution-4-14@indico.inp.nsk.su DESCRIPTION:Speakers: Yasuo Arai (High Energy Accelerator Research Organiz ation (KEK))\nWe have been developing a monolithic pixel detector process using a Silicon-on-Insulator (SOI) technology.\nThe SOI wafer is composed of a thick\, high-resistivity substrate for the sensing part and a thin Si layer for CMOS circuits.\nIn the 1990's\, a few group tried to develop th e SOI detector\, but all the project was stopped without success.\nWe have developed many new techniques to solve the difficult issues in the SOI de tector.\nNow we have many projects to use the SOI process not only in high -energy physics but also in the fields of X-ray\, material science\, medic al\, etc.\nPast development and recent progress of the SOI technology are presented.\n\nhttps://indico.inp.nsk.su/event/0/contributions/14/ LOCATION: URL:https://indico.inp.nsk.su/event/0/contributions/14/ END:VEVENT BEGIN:VEVENT SUMMARY:DEPFET at Belle II DTSTART;VALUE=DATE-TIME:20140225T053000Z DTEND;VALUE=DATE-TIME:20140225T055500Z DTSTAMP;VALUE=DATE-TIME:20260513T221426Z UID:indico-contribution-4-32@indico.inp.nsk.su DESCRIPTION:Speakers: Felix Mueller (Max-Planck-Institute for Physics)\nTh e innermost detector of the Belle II experiment makes use of the DEPFET te chnology to provide the accurate position measurements that are needed for the reconstruction of B-meson decay vertices. This technology combines si gnal detection and amplification in a single silicon pixel structure\, so that the position measurement of traversing particles can be achieved with an overall material budget of 0.075% radiation length\, corresponding to 75 μm² in order to minimize the impact of multiple scattering for low tr ansverse momentum tracking. Moreover\, the DEPEFT detector has an excellen t signal-to-noise ratio\, low power consumption and offers a non-destructi ve readout.\nThe instantaneous luminosity of 8x10³⁵ cm⁻²s⁻¹ expec ted at SuperKEKB increases the event rate and causes a large background. T he close proximity of the pixel detector to the beampipe (only 1.4 cm from the interaction point) poses many challenges to the detector technology\, in particular to radiation hardness and electronics. The vertex pixel det ector consists of two DEPFET layers (radii at 14 mm and 22 mm).\nThese are 20 ladders in total corresponding to 8 Mega Pixels (pixel sizes: 50x55 μ m² and 50x75 μm²). The four-fold readout in rolling shutter mode result s in a total readout time of about 20 μs for an entire frame. The concept of the sensor and the surrounding readout electronics will be presented i n detail with focus on the Belle II experiment. 17 institutes from Europe and Asia work together in the DEPFET collaboration to meet these challenge s.\n\nhttps://indico.inp.nsk.su/event/0/contributions/32/ LOCATION: URL:https://indico.inp.nsk.su/event/0/contributions/32/ END:VEVENT BEGIN:VEVENT SUMMARY:Upgrade of the LHCb Vertex Locator DTSTART;VALUE=DATE-TIME:20140225T081500Z DTEND;VALUE=DATE-TIME:20140225T083500Z DTSTAMP;VALUE=DATE-TIME:20260513T221426Z UID:indico-contribution-4-38@indico.inp.nsk.su DESCRIPTION:Speakers: Alexander Leflat (Lomonosov Moscow State University Skobeltsyn Institute of Nuclear Physics (SINP MSU))\nThe upgrade of the LH Cb experiment\, planned for 2018\, will transform the entire readout to a trigger-less system operating at 40 MHz. All data reduction algorithms wil l be executed in a high-level software farm\, with access to all event inf ormation. This will enable the detector to run at luminosities of 1-2×10 ³³ cm⁻²s⁻¹ and probe physics beyond the Standard Model in the heav y sector with unprecedented precision.\nThe upgraded VELO must be low mass \, radiation hard and vacuum compatible. It must be capable of fast patter n recognition and track reconstruction and will be required to drive data to the outside world at speeds of up to 3 Tbit/s. This challenge is being met with a new VELO design based on hybrid pixel detectors positioned to w ithin 5 mm of the LHC colliding beams. The sensors have 55 x 55 μm square pixels and the VELOPix ASIC which is being developed for the readout is b ased on the Timepix/Medipix family of chips.\nThe hottest ASIC will have t o cope with pixel hit rates of up to 900 MHz.\nThe material budget will be optimised with the use of evaporative CO₂ coolant circulating in microc hannels within a thin silicon substrate.\nMicrochannel cooling brings many advantages: very efficient heat transfer with almost no temperature gradi ents across the module\, no CTE mismatch with silicon components\, and low material contribution. This is a breakthrough technology being developed for LHCb.\nLHCb is also focussing effort on the construction of a lightwei ght foil to separate the primary and secondary LHC vacua\, the development of high speed cables\, and the metallisation and radiation qualification of the module.\nThe 40 MHz readout will also bring significant conceptual changes to the way in which the upgrade trigger is operated. Work is in pr ogress to incorporate momentum and impact parameter information into the t rigger at the earliest possible stage\, using the fast pattern recognition capabilities of the upgraded detector.\nThe current status of the VELO up grade will be described together with a presentation of recent test result s.\n\nhttps://indico.inp.nsk.su/event/0/contributions/38/ LOCATION: URL:https://indico.inp.nsk.su/event/0/contributions/38/ END:VEVENT BEGIN:VEVENT SUMMARY:DEPFET as a measurement device: simulation and data reconstruction DTSTART;VALUE=DATE-TIME:20140225T055500Z DTEND;VALUE=DATE-TIME:20140225T061500Z DTSTAMP;VALUE=DATE-TIME:20260513T221426Z UID:indico-contribution-4-39@indico.inp.nsk.su DESCRIPTION:Speakers: Peter Kvasnicka (Charles University in Prague)\nThis talk looks at DEPFET as a physicist's tool and shows properties of the DE PFET based on simulation and analysis of data from an extensive DEPFET tes tbeam programme. An overview of DEPFET digitization and hit reconstruction as implemented in Belle II will be used as a basis for estimating the per formance of the Belle pixel vertex detector.\n\nhttps://indico.inp.nsk.su/ event/0/contributions/39/ LOCATION: URL:https://indico.inp.nsk.su/event/0/contributions/39/ END:VEVENT BEGIN:VEVENT SUMMARY:CMS Phase-1 Upgrades and Plans\, with focus on Pixel Upgrade DTSTART;VALUE=DATE-TIME:20140225T091500Z DTEND;VALUE=DATE-TIME:20140225T094000Z DTSTAMP;VALUE=DATE-TIME:20260513T221426Z UID:indico-contribution-4-44@indico.inp.nsk.su DESCRIPTION:Speakers: Aaron Dominguez (University of Nebraska -- Lincoln)\ nAfter a highly successful Run 1 of the LHC\, CMS is planning the first ph ase of upgrades to maintain and extend our detector's performance as the L HC continues to increase the instantaneous luminosity of the accelerator. In order to keep the same\, or improve\, our experiment's performance in r uns with 50 or more pile-up events per crossing\, we are planning to repla ce the pixel tracker with a new low mass\, four layer\, three forward/back ward disk\, detector. In addition\, we will be upgrading the electronics a nd photodetectors for the HCAL\, while increasing the granularity of the d etector to improve jet triggering and reconstruction in these high pile-up events. Finally\, upgrades to the trigger electronics will allow us to ef ficiently deal with these higher rates coming from the increases in the ac celerator's performance.\n\nhttps://indico.inp.nsk.su/event/0/contribution s/44/ LOCATION: URL:https://indico.inp.nsk.su/event/0/contributions/44/ END:VEVENT BEGIN:VEVENT SUMMARY:Time-Projection-Chamber for MPD NICA Project DTSTART;VALUE=DATE-TIME:20140226T031500Z DTEND;VALUE=DATE-TIME:20140226T034000Z DTSTAMP;VALUE=DATE-TIME:20260513T221426Z UID:indico-contribution-4-48@indico.inp.nsk.su DESCRIPTION:Speakers: Stepan Vereschagin (Joint Institute for Nuclear Rese arch)\nThe Time-Projection Chamber (TPC) is the main device for tracking a nd identification of charged particles in the MPD experiment at NICA colli der.\nThe TPC is cylinder in shape with a volume close to 18 m³\, length 3 m\, diameter 2.8 m. Solenoidal magnetic field is 0.5 T.\nThe report pres ents the design consideration of this detector for it operation at the cen tral Au-Au collisions at energy up to 11 Gev/c and event rate of 5 kHz. St atus of the TPC construction and features of main parts (field cage\, read -out chambers\, front end electronics\, gas and cooling systems\, laser-ca libration) as well as testing software are described.\n\nhttps://indico.in p.nsk.su/event/0/contributions/48/ LOCATION: URL:https://indico.inp.nsk.su/event/0/contributions/48/ END:VEVENT BEGIN:VEVENT SUMMARY:High Voltage Monolithic Active Pixel Sensors for the PANDA Luminos ity Detector DTSTART;VALUE=DATE-TIME:20140225T083500Z DTEND;VALUE=DATE-TIME:20140225T085500Z DTSTAMP;VALUE=DATE-TIME:20260513T221426Z UID:indico-contribution-4-49@indico.inp.nsk.su DESCRIPTION:Speakers: Tobias Weber (Helmholtz Institut Mainz)\nThe PANDA-E xperiment will be part of the new FAIR accelerator center at Darmstadt\, G ermany. It is a fixed target experiment using a antiproton beam with very high resolution for precision measurements. For a variety of measurements like energy-scans the precise determination of the luminosity is needed.\n The luminosity detector will determine the luminosity by measuring the ang ular distribution of elastically scattered antiprotons very close to the b eam axis (3-8 mrad). To reconstruct antiproton tracks four layers of thinn ed silicon sensors with smart pixel readout on chip (HV-MAP) will be used. Those sensors are currently under development by the Mu3e-collaboration.\ nIn the talk the concept of the luminosity measurement is shortly introduc ed before a summary of the status of HV-MAP prototypes and readout electro nics is given.\n\nhttps://indico.inp.nsk.su/event/0/contributions/49/ LOCATION: URL:https://indico.inp.nsk.su/event/0/contributions/49/ END:VEVENT BEGIN:VEVENT SUMMARY:The Ultra Lightweight Support Structure and Gaseous Helium Cooling for the Mu3e Silicon Pixel Tracker DTSTART;VALUE=DATE-TIME:20140225T085500Z DTEND;VALUE=DATE-TIME:20140225T091500Z DTSTAMP;VALUE=DATE-TIME:20260513T221426Z UID:indico-contribution-4-54@indico.inp.nsk.su DESCRIPTION:Speakers: Dirk Wiedner (Physikalisches Institut der Universita et Heidelberg)\nThe Mu3e experiment searches for charged lepton flavor vio lation in the rare decay μ→eee. In order to reach a sensitivity of bett er than 10⁻¹⁶\, more than 10⁹ muon decays per second have to be obs erved over a running time of one year. Precise determination of particle m omentum\, vertex position and time are necessary for background suppressio n. These requirements can be met by combining an ultra-lightweight tracker based on High-Voltage Monolithic Active Pixel Sensors (HVMAPS) with a tim ing system which consists of a scintillating fiber detector and a tile hod oscope. As the momentum of particles from muon decay is below 53 MeV/c\, t he silicon pixel tracker resolution is dominated by multiple Coulomb scatt ering. This leads to extreme requirements for the material budget of the t racking detector of below 0.1% of a radiation length per layer. Even thoug h the target power consumption of the HVMAPS detector is as low as 150 mW/ cm²\, the detector cooling must be very efficient and at the same time av oid adding material inside the active tracking volume. In this presentatio n the ultra-lightweight support structure and the gaseous helium cooling s ystem for the thin silicon pixel tracker will be discussed.\n\nhttps://ind ico.inp.nsk.su/event/0/contributions/54/ LOCATION: URL:https://indico.inp.nsk.su/event/0/contributions/54/ END:VEVENT BEGIN:VEVENT SUMMARY:The MEG upgrade Drift Chamber DTSTART;VALUE=DATE-TIME:20140226T020000Z DTEND;VALUE=DATE-TIME:20140226T022500Z DTSTAMP;VALUE=DATE-TIME:20260513T221426Z UID:indico-contribution-4-60@indico.inp.nsk.su DESCRIPTION:Speakers: Francesco Grancagnolo (Istituto Nazionale di Fisica Nucleare)\nWe present the design and the construction details of the drift chamber planned for the upgrade of the MEG detector at PSI\, to be in ope ration during the second half of 2015.\n\nhttps://indico.inp.nsk.su/event/ 0/contributions/60/ LOCATION: URL:https://indico.inp.nsk.su/event/0/contributions/60/ END:VEVENT BEGIN:VEVENT SUMMARY:Performance and Radiation Damage Effects in the LHCb Vertex Locato r DTSTART;VALUE=DATE-TIME:20140225T075500Z DTEND;VALUE=DATE-TIME:20140225T081500Z DTSTAMP;VALUE=DATE-TIME:20260513T221426Z UID:indico-contribution-4-62@indico.inp.nsk.su DESCRIPTION:Speakers: Tim Head (CERN)\nLHCb is a dedicated experiment to s tudy New Physics in the decays of heavy hadrons at the Large Hadron Collid er (LHC) at CERN. Heavy hadrons are identified through their flight distan ce in the Vertex Locator (VELO)\, and hence the detector is critical for b oth the trigger and offline physics analyses.\nThe VELO is the retractable silicon-strip detector surrounding the LHCb interaction point. It is loca ted only 7 mm from the LHC beam during normal LHC operation\, once moved i nto its closed position for each LHC fill when stable beams are obtained. During insertion the detector is centred around the LHC beam by the online reconstruction of the primary vertex position. Both VELO halves comprise 21 silicon micro-strip modules each. A module is made of two n+-on-n 300 m um thick half-disc sensors with R-measuring and Phi-measuring micro-strip geometry\, mounted on a carbon fibre support paddle. The minimum pitch is approximately 40 mum. The detector is also equipped with the only n-on-p s ensors operating at the LHC.\nThe detectors are operated in vacuum and a b i-phase CO2 cooling system is used. The signals read out with analogue fro nt-end chips are subsequently processed by a set of algorithms in FPGA pro cessing boards.\nThe VELO has been performing very successfully during the first run of the LHC in 2010-12.\nPossible effects of radiation damage ha ve been monitored and studied in detail throughout this period. Indeed the VELO module sensors receive a large and non-uniform radiation dose having inner and outer radii of only 7 and 42 mm\, respectively. A maximum dose of 1.2 x 1014 1 MeV neutron equivalent /cm2 was received in the innermost region of the sensors for the combined 2010-12 run I (3.4 fb-1 of delivere d data). Being operated in an extreme and highly non-uniform radiation env ironment\, type-inversion of the inner part of the n-on-n sensors has alre ady been measured.\nThe radiation damage in the detector is monitored and studied in three ways: (1) dependence of sensor currents on voltage and te mperature\; (2) measurement of the effective depletion voltage of the sens ors from the charge collection efficiency and from studying the noise vers us voltage behaviour\; and (3) cluster finding efficiency. Results will be presented in all three areas with the most recent results from the full r un I.\n\nhttps://indico.inp.nsk.su/event/0/contributions/62/ LOCATION: URL:https://indico.inp.nsk.su/event/0/contributions/62/ END:VEVENT BEGIN:VEVENT SUMMARY:Track chambers based on precision drift tubes housed inside a 30 m m mylar pipe DTSTART;VALUE=DATE-TIME:20140226T041000Z DTEND;VALUE=DATE-TIME:20140226T043000Z DTSTAMP;VALUE=DATE-TIME:20260513T221426Z UID:indico-contribution-4-70@indico.inp.nsk.su DESCRIPTION:Speakers: Rinat Fakhrutdinov (Institute for High Energy Physic s)\nThe paper presents a technical design and some technical characteristi cs of the multilayer track chambers consisting of the precision drift tube s housed inside a 30 mm mylar pipe. The pipes are manufactured (welded by ultrasonic) from 125 mkm mylar film powdered with aluminium from both side s. 26 chambers with dimensions up to 2.5 x 2.5 sq.m incorporating totally 4400 drift tubes have been launched for the experiments at 70 GeV Serpukho f accelerator.\n\nhttps://indico.inp.nsk.su/event/0/contributions/70/ LOCATION: URL:https://indico.inp.nsk.su/event/0/contributions/70/ END:VEVENT BEGIN:VEVENT SUMMARY:CLIC Vertex-Detector R&D DTSTART;VALUE=DATE-TIME:20140225T050500Z DTEND;VALUE=DATE-TIME:20140225T053000Z DTSTAMP;VALUE=DATE-TIME:20260513T221426Z UID:indico-contribution-4-80@indico.inp.nsk.su DESCRIPTION:Speakers: Sophie Redford (CERN)\nThe CLIC vertex detector must have excellent spatial resolution\, full geometrical coverage extending t o low polar angles\, extremely low mass\, low occupancy facilitated by tim e-tagging\, and sufficient heat removal from sensors and readout. These co nsiderations\, together with the physics needs and beam structure of CLIC\ , push the technological requirements to the limits and imply a very diffe rent vertex detector than the ones currently in use elsewhere. A detector concept based on hybrid planar pixel-detector technology is under developm ent for the CLIC vertex detector. It comprises fast\, low-power and small- pitch readout ASICs implemented in 65 nm CMOS technology (CLICpix) coupled to ultra-thin sensors via low-mass interconnects. The power dissipation o f the readout chips is reduced by means of power pulsing\, allowing for a cooling system based on forced gas flow. In this talk\, the CLIC vertex-de tector requirements are reviewed and the current status of R&D on sensors\ , readout and detector integration is presented.\n\nhttps://indico.inp.nsk .su/event/0/contributions/80/ LOCATION: URL:https://indico.inp.nsk.su/event/0/contributions/80/ END:VEVENT BEGIN:VEVENT SUMMARY:The Upgrade of the ALICE TPC DTSTART;VALUE=DATE-TIME:20140226T025000Z DTEND;VALUE=DATE-TIME:20140226T031500Z DTSTAMP;VALUE=DATE-TIME:20260513T221426Z UID:indico-contribution-4-105@indico.inp.nsk.su DESCRIPTION:Speakers: Bernhard Ketzer (Univ. Bonn)\nA large Time Projectio n Chamber (TPC) is the main tracking device in the barrel region of the AL ICE detector at the CERN Large Hadron Collider. It provides state-of-the-a rt charged-particle tracking and identification for ultra-high multiplicit y particle collisions. In order to make full use of the increase in lumino sity after the second long shutdown of the LHC\, it is foreseen to operate the detector in an ungated mode with continuous readout\, thus increasing the event rate by two orders of magnitude.\nTo this end\, the present mul tiwire proportional chambers will be replaced by a system of Gas Electron Multiplier (GEM) foils. Together with advanced techniques for online space -charge corrections\, the upgrade will enable the detector to perform to s pecifications under the conditions foreseen for the LHC Pb-Pb program in R UN 3. The talk will discuss the extensive R&D program which has been start ed to reach this ambitious goal and motivate the design choices which have been adopted.\n\nhttps://indico.inp.nsk.su/event/0/contributions/105/ LOCATION: URL:https://indico.inp.nsk.su/event/0/contributions/105/ END:VEVENT BEGIN:VEVENT SUMMARY:Small angle detectors for study the diffractive processes with CMS DTSTART;VALUE=DATE-TIME:20140225T094000Z DTEND;VALUE=DATE-TIME:20140225T100000Z DTSTAMP;VALUE=DATE-TIME:20260513T221426Z UID:indico-contribution-4-116@indico.inp.nsk.su DESCRIPTION:Speakers: Vladimir Samoylenko (Insitute for High Energy Physic s)\nThe aim of the Proton Precision Spectrometer (PPS) Project is to add p recision forward-proton tracking (~10 μm\, ~1 μrad) and timing (with res olution \n\nhttps://indico.inp.nsk.su/event/0/contributions/116/ LOCATION: URL:https://indico.inp.nsk.su/event/0/contributions/116/ END:VEVENT END:VCALENDAR