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‘Open-field’ PET imaging of freely moving rodents is a powerful paradigm because it enables the correlation of functional and behavioral outputs in response to environmental or pharmacologic stimuli. Use of motion compensation techniques provides a feasible framework for imaging a moving animal. However, to overcome the geometric and performance limitations encountered in adapting motion compensation...
A new, highly pixelated, PET scanner dedicated to mouse imaging is being developed based on the LabPET II detector module. Each module includes four monolithic array of 4×8 avalanche photodiodes (APD) individually coupled to four 4×8 array of 1.12×1.12 mm2 scintillator pixels aimed at achieving submillimetric spatial resolution. A PCB routes the signals from four detector arrays to two 64-channel,...
The development and testing of a 2d neutron detector for the OffSpec reflectometer on the second target station of the ISIS spallation neutron source is reported. Based on a microstrip gas chamber (MSGC) the detector utilises a wire plane operating at zero gain to provide the second coordinate, which relaxes the tolerances on the wireplane necessary for stable operation. The
In this work we describe advanced data processing and analysis techniques intended to be used in the gas tightness station at CERN for Quality Assurance and Quality Control of the New Small Wheel Micromegas Quadruplets. We combine two methods: a conventional one based on the Pressure Decay Rate and an alternative-novel one, based on the Flow Rate Loss. A prototype setup has been developed based on...
A large scale prototype of a tile hadron calorimeter (HCAL) for the International Linear Collider (ILC) detector is currently under development. The proposed calorimeter follows the particle flow concept, which requires high granularity and a compact detector design. This is accomplished by using scintillating tiles that are read out by Silicon Photomultipliers (SiPMs) and the integration of the associated...
The GigaTracker magnetic spectrometer (GTK) has been designed for the NA62 experiment at the CERN SPS. NA62 aims to measure the branching fraction of the ultra-rare decay K+ → π+ vm[1] [2]. The detector is made of three planes of hybrid pixels, as shown in Figure 1. It has to track particles in a beam with a flux reaching 1.3 MHz/mm2 and provide single-hit timing with 200 ps resolution for a total...
The DEPFET collaboration is building a highly granular, ultra-transparent active pixel detector for high-performance vertex reconstruction at the Belle II experiment, KEK, Japan. A complete detector system is being developed, including solutions for ultra-thin sensors and their mechanical support, r/o ASICs, cooling, services, and a DAQ system capable of handling the huge amount of data coming from...
We are constructing a dual-panel PET system dedicated to locoregional imaging (e.g. breast, head/neck, etc). The modular data acquisition electronics uses the RENA-3 application specific integrated circuit (ASIC) to read out position-sensitive avalanche photodiodes (PSAPDs). The RENA-3's settings must be optimized to extract the best timing resolution and ADC dynamic range mapping performance. In...
The ongoing need to protect key nodes of network infrastructure has been a pressing issue since the outburst of modern Internet threats. This paper presents ideas on building a novel network-based intrusion prevention system combining the advantages of different types of latest intrusion detection systems. Special attention is also given to means of traffic data acquisition as well as security policy...
In order to satisfy the requirement of automatic nondestructive testing of micro defects for the casting and forging components whose shape and curvature are complex (such as aircraft engine blades), we develop a CT testing system based on six degrees of freedom industrial manipulator using computerized tomography scan of detection method. The measurement system is mainly composed of three major parts:...
In recent years vein and nerve identification is most important role in medical field. Vein and nerve finding used for anesthesia injection during the major surgery. Nowadays doctors use manual method to find these vein, artery and nerve and they inject the medicine. Suppose they inject wrongly it will lead to major health disorder in children's and adults. So the proposed automatic detector was used...
Positron emission tomography (PET) has gained interest as one of the most reliable techniques for in-vivo range monitoring in particle therapy. The INSIDE project uses a new SiPM based PET implementation that processes individually each single photon acquired by two detector plates placed close to the patient. In order to detect coincidences in the single photons stream, a fast sorter architecture...
Time-domain diffuse optical tomography (TD-DOT) provides information-rich data that have not yet been fully exploited for image reconstruction, notably to increase imaging spatial resolution. Current TD-DOT scanners suffer from a very low sensitivity owing to their small number of detection channels. This leads to excessively long acquisition times for in vivo imaging. To obtain a higher number of...
We present the new TDAQ system designed for the upgraded MEG experiment, MEG II. It is an assembly of three new boards in a dedicated crate. The system foundation is on the so called WaveDREAM board with DAQ and trigger capabilities accompanied by trigger concentrator boards, to collect information from the detectors and perform real time event reconstruction, and data concentrator boards for DAQ...
Achieving a correct fitting of cochlear implants is a tedious and difficult work. Most fitting specialists need extensive experience on how changes in fitting parameters are translated into perceived sounds. Also, the processor fault often is overlooked and thus, the degraded hearing quality is attributed to changes in the patient's physiology. In this context, this paper presents the implementation...
A terahertz imaging system operating at 0.3 THz has been developed for the purpose of detecting foreign substances in foods conveyed at a velocity of higher than 20 m/min. The imaging system has two Schottky barrier diode arrays which detect horizontally and vertically polarized terahertz waves independently and simultaneously. Experiments have shown that the imaging system can successfully obtain...
New techniques for movable ultra-low-cost x-ray CT scanners are in instant and great needs for military, war areas, developing countries, and rural areas. In previous study, we proposed a novel CT scanning method which is based on the parallel translation of the tube/detectors. In other words, the popular slip ring is replaced by a translation based setup, and the instrumentation cost is reduced by...
We present the first results of a tracking system prototype using the artificial retina algorithm for fast track finding. The system is based on extensive parallelization and interconnectivity, and allows real-time tracking with offline-like quality with a latency < 1 μs. The artificial retina algorithm has been implemented on a novel custom data acquisition board, based on commercial FPGAs, that...
A Head proton computed tomography (pCT) scanner based on a fiber tracker and scintillator stack range detector has been developed at Northern Illinois University in conjunction with Fermilab. We present preliminary results from beam tests conducted in 2014 at the Central DuPage Hospital (CDH) at Warrenville, IL. The scanner is described in [1], and the image reconstruction hardware and software are...
The NA62 experiment at the European Organization for Nuclear Research (CERN) Super Proton Synchrotron (SPS) aims to measure the Branching Ratio of the very rare kaon decay K+ → π+νν, collecting O (100) events with a 10% background to make a stringent test of the Standard Model. One of the main backgrounds to the proposed measurement is represented by the K+ → π+π0, decay. To suppress this background...
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