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Currently the multichannel readout chip for GEM detectors with an asynchronous architecture is being developed. The paper describes the 32-channel chip for GEMs and the test results of the chip building blocks. The chip includes the full readout channel with analog front-end and digital back-end. The channel includes a preamplifier with fast and slow CR-RC shapers, discriminator with a differential...
A new CMOS readout circuit with non-uniformity calibration for diode uncooled infrared focal plane array (IRFPA) is presented in this paper. A new transconductance amplifier with offset cancellation structure is proposed, utilizing output offset voltage storage. The bias current of each pixel is adjusted by a current splitting DAC array, calibrating the mismatch of the current sources and the non-uniformity...
A database plays a central role in the architecture of an information system, and the way it stores the data delimits its main features. However, it is not just the data that matters. The way it is handled, i.e., how the application communicates with the database is of critical importance too. Therefore the implementation of such a communication layer has to be reliable and efficient. SQL is a popular...
In next generation communication systems high data rate, and higher transmission capacity through wireless channel are important for researchers. Filter bank based multicarrier (FBMC) modulation with offset quadrature amplitude modulation (OQAM) makes researchers interested due to its advantages over orthogonal frequency division multiplexing (OFDM). The paper indicates that OFDM, FBMC-QAM, multiple-input...
The current work proposes a method and circuitry for a lightning strike detection system with current and vibration detecting features. A Rogowski coil is used for current detection, which can be placed around a conductor where the lightning current is expected to flow. The method also provides means of ascertaining which tower is closest during the moment of the strike through use of a dual-axis...
A novel joint detector is proposed for the quadrature amplitude modulation (QAM) filter-bank multicarrier (FBMC) system with the prototype filter of the conventional FBMC. Based on the inter-carrier-correlation (ICC) matrices, the intrinsic interference model of the QAM FBMC is derived. The total interference can be divided into inter-carrier interference (ICI) and inter-symbol interference (ISI)...
Imager topology with sub-ns time gating for 3D distance measurement application and first measurement results of the prototype are presented. The imager has a fully digital operating principle with single-photon avalanche diode detectors and on-chip narrow gating of pixel groups. The prototype detector has 80 × 25 pixels with a fill factor of 34 % in the sensor area. The chip has been fabricated in...
This paper presents the proposal of a new front-end readout electronics (RO) architecture for the ALICE Charged-particle Veto detector (CPV) located in PHOton Spectrometer (PHOS), and for the High Momentum particle IDentification detector (HMPID). With the upgrades in hardware typology and proposed new readout scheme in FPGA design, the RO system shall achieve at least five times the speed of the...
The ALICE Collaboration is preparing a major upgrade of the experimental apparatus, planned for installation in the second long LHC shutdown m the years 2019–2020. The key element of the ALICE upgrade is the construction of the new high resolution Inner Tracking System (ITS). It will be made of seven concentric detector layers based on a 50μm thick CMOS pixel sensor with a pixel pitch of 30 × 30 μm...
We have defined a hyperspectral imager based on micro-mirror MEMS array, that features easily adaptable spectral resolution, adjustable acquisition time, and high spatial resolution independent of spectral resolution. We present the development of an integrated research prototype of the imager, that allows the control of both the micro-mirrors array and CMOS data reading from the same FPGA board,...
This paper presents the design and implementation of the ALICE O2 Control System prototype. The design of our system is based on the ALICE O2 requirements. The system allows the crew operating the experiment to send simple commands in order to control the ongoing processes running in the computing farm. The sent command is capable of reacting to changing conditions and operational the requirements...
IoT is an expanding network of physical devices that are linked with different types of sensors and with the help of connectivity to the internet, they are able to exchange data. Through IoT, internet has now extended its roots to almost every possible thing present around us and is no more limited to our personal computers and mobile phones. Safety, the elementary concern of any project, has not...
ATLAS is preparing for an extensive modification of its detector in the course of the planned HL-LHC accelerator upgrade around 2025 which includes a replacement of the entire tracking system by an all-silicon detector (Inner Tracker, ITk). The five innermost layers of ITk will comprise a pixel detector built of new sensor and readout electronics technologies to improve the tracking performance and...
A detailed study of hadronic interactions is presented using data recorded with the highly granular CALICE silicon-tungsten electromagnetic calorimeter. The predictions of several Monte Carlo GEANT4 models are compared with experimental data, taken at FNAL in 2008. The contribution recaps results published in 2015 and a set of new results available since the beginning of 2016. The published results...
The COMET experiment at J-PARC aims to search for the charged lepton flavor violating process of neutrinoless muon to electron conversion. The goal sensitivity is to be improved by a factor of 10000 to the current limit. In order to achieve the goal sensitivity, we have developed a straw tube tracker as an electron detector which has very high momentum resolution. To read out the signal from the tracker...
To date, Imaging Atmospheric Cherenkov Telescopes (IACTs) have primarily been realized using photomultiplier tubes (PMTs) as light detectors. Recently, such telescopes of small size (∼4m) have been built using silicon photomultiplier (SiPM) sensors in their imaging cameras. This work describes a design approach for SiPM based focal plane experimental instrumentation for operation alongside the PMT...
The SoLid collaboration aim to search for very short baseline neutrino oscillations using reactor anti-neutrinos. For this purpose, a highly segmented detector was built out of PVT cubes lined with a 6LiF:ZnS(Ag) layer. Unlike neutrino experiments conducted deep underground, neutrino detectors used in a reactor environment are forced to operate in high levels of background radiation. Therefore the...
A first prototype of a readout ASIC in CMOS 65 nm for a pixel detector at High Luminosity LHC is described. The pixel cell area is 50×50 μm2 and the matrix consists of 64×64 pixels. The chip was designed to guarantee high efficiency at extreme data rates for very low signals and with low power consumption. Two different analogue front-end designs, one synchronous and one asynchronous, were implemented,...
The SoLid experiment aims to measure the anti-neutrino energy spectrum 5.5-10m from the core of the BR2 nuclear reactor at SCK•CEN in Mol, Belgium. The goal is to provide the most sensitive search for short-baseline neutrino oscillations and to resolve the reactor neutrino anomaly. In fact, the proposed detector technology will be very useful for anti-neutrino detection in other settings as well,...
We designed a novel single-photon emission computed tomography (SPECT) system with a variable pinhole (VP) collimator for obtaining high-sensitivity and high-spatial resolution imaging of a region of interest (ROI). Extending the capabilities of conventional SPECT systems, this novel SPECT system with a VP collimator can adjust its driving parameters, such as a collimator diameter, acceptance angle,...
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