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A position sensitive radiation sensor was modeled, developed and fabricated then interfaced with a field programmable gate array (FPGA) to create a radiation hardened computing platform. The system exploits environmental information from the sensor in order to determine regions within the FPGA that may have been affected by radiation. The spatial radiation sensor provides the computer system with...
A telescope for a beam test have been developed. The system is intended to measure the spatial resolution performance of different types of silicon detectors. The telescope has four XY measurement as well as trigger planes (XYT board). It can accommodate up to twelve devices under test (DUT board). The DUT board uses two Beetle ASICs for the readout of chilled DUT, microstrip or pixel silicon detectors...
LHCb is a dedicated experiment to study new physics in the decays of beauty and charm hadrons at the Large Hadron Collider (LHC) at CERN. The beauty and charm hadrons are identified through their flight distance in the Vertex Locator (VELO), and hence the detector is critical for both the trigger and offline physics analyses. The VELO is the silicon detector surrounding the interaction point, and...
Real time event reconstruction plays a fundamental role in High Energy Physics experiments. The CDF experiment at the Tevatron collider performs a fast online reconstruction of high-resolution tracks using the Silicon Vertex Trigger (SVT). We will describe the architecture, the performance and the impact on CDF physics program of a next generation online track fitter, the GigaFitter, developed to...
MicroBooNE is a liquid Argon time projection chamber to be built at Fermilab for an accelerator-based neutrino physics experiment and as part of the R&D strategy for a large liquid argon detector at DUSEL. The waveforms of the ~9000 sense wires in the chamber are continuously digitized at 2 M samples/s - which results in a large volume of data coming off the TPC. We have developed a lossless data...
The experiment PANDA (Antiproton Annihilation at Darmstadt) is under development for the future accelerator facility FAIR in Darmstadt, Germany. In the target spectrometer of PANDA a micro-vertex detector (MVD) will be used as the central tracking detector for charged particles. The design of the MVD is based on silicon strip detectors at the outer layer and on silicon pixel detectors at the inner...
As the LHC luminosity is ramped up to 3×1034 cm-2 s-1 and beyond, the high rates, multiplicities, and energies of particles seen by the detectors will pose a unique challenge. Only a tiny fraction of the produced collisions can be stored on tape and immense real-time data reduction is needed. An effective trigger system must maintain high trigger efficiencies for the physics we are most interested...
This work deals with the design of an upgraded firmware version of the CARLOSrx data concentrator board which is part of the readout chain of the silicon drift detector at the ALICE experiment at the LHC. The goal is to on-line reduce the SDD data volume size in low-occupancy (cosmic and p-p) runs, thus leading to a decreased data throughput and a reduced amount of data to be stored. In order to reach...
A new concept of high granularity hadronic calorimeter using thin GRPCs as sensitive medium with embedded semi-digital readout electronics to be used in the future linear collider experiments is under development within the CALICE collaboration. Based on this concept, a small prototype was built and tested with success at CERN PS test beam in 2008. To validate completely this new concept a prototype...
The PHENIX experiment at RHIC at Brookhaven National Laboratory has been providing high quality physics data for over 8 years. The current PHENIX physics program will be significantly enhanced by addition of the Forward Silicon Vertex upgrade detector (FVTX) in the acceptance of existing muon arm detectors. The proposed tracker is planned to be put into operation in FY2011. Each arm of the FVTX detector...
We report on the implementation and hardware platform of a real time Statistics-Based Processing (SBP) method with depth of interaction processing for continuous miniature crystal element (cMiCE) detectors using a sensor on the entrance surface design. Our group previously reported on a Field Programmable Gate Array (FPGA) SBP implementation that provided a two dimensional (2D) solution of the detector's...
We report on a distributed online coincidence detection implementation that we have recently added to the miniPET-II small animal PET scanner. The implementation uses standard Ethernet and IP multicasting techniques, therefore no architectural changes were necessary to the existing system. For 2D reconstruction the implementation scales with the number of detectors in the system, so it can be used...
Linearity problem has restrained the application of Time-over-Threshold (ToT) on Micro Strip Gas Chamber (MSGC). Here, we proposed an improved ToT method, Dynamic ToT, which could achieve better linearity in a large dynamic range. Both normal ToT and Dynamic ToT module has been assembled with discrete circuits and tested with Multi-Grid MSGC (M-MSGC). In our experiments, Dynamic ToT method has shown...
The Compact Neutron Spectrometer (CNS) is a Joint European Torus (JET) Enhancement Project, devoted to measure the neutron emission spectra in different plasmas scenarios. The results obtained by CNS during next JET campaigns will contribute to the development of neutron spectrometers suitable for applications in the International Thermonuclear Experimental Reactor (ITER). The main components of the...
A new detector employing the micro-pixel gaseous chamber (μPIC) is currently being developed as a thermal neutron imaging detector for applications in small angle neutron scattering (SANS), neutron radiography, and radioactive material detection. Neutron detection is achieved through the 3He(n, p)3H absorption reaction by adding 3He to the usual Argon-Ethane gas mixture. The μPIC, with a pixel pitch...
In September 2008 the Slim5 collaboration submitted a low material budget silicon demonstrator to test with 12 GeV/c protons, at the PS-T9 test-beam at CERN. The beam test setup was composed of two different detectors (DUTs) placed inside a reference microstrip silicon tracker telescope. The first was a 4k-Pixel Matrix of Deep N Well MAPS, developed in a 130 Nm CMOS Technology, providing digital sparsified...
The Silicon-Vertex-Trigger (SVT) is a processor developed at CDF experiment to perform online fast and precise track reconstruction. SVT is made of two pipelined processors: the Associative Memory finds low precision tracks looking for coincidences between hits from the tracking detectors and track candidates (roads) stored in memory; the Track Fitter refines the track quality whith high precision...
The Daya Bay RPC readout system is responsible for collecting Muon hit events for the anti-neutrino procedure.The expected readout system should be capable of converting analog hit signals from RPC (Resistance Chamber Plate) detectors into digital signals which will be buffered and then uploaded to online DAQ (Data Acquisition) systems as well as reporting trigger information. The numerous and relatively...
The LHCb experiment at the Large Hadron Collider (LHC) at CERN in Geneva (Switzerland) is designed to perform precision measurements of b quark decays. The Silicon Tracker (ST) plays a crucial role in reconstructing particle trajectories and consists of two silicon micro-strip detectors, the Tracker Turicensis upstream of the LHCb magnet and the Inner Tracker downstream. The radiation environment...
The Semiconductor Tracker (SCT) data acquisition (DAQ) system has been built to calibrate, configure, and control the approximately six million front-end channels of the ATLAS silicon strip detector. It provides a synchronized bunch crossing clock to the frontend modules, communicates first-level triggers to the front-end chips, and transfers information about hit strips to the ATLAS high-level trigger...
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