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Detection and spectroscopy tests of the first functional unit of a self-dependent silicon detection module constructed on the base of micro-cable and TAB technology are presented. The tests were performed using pulse-height analysis of the signals induced by gamma rays in the silicon sensor. Good shapes of the spectra and satisfactory spectroscopy resolution (given by FWHM which is less than 2 keV)...
The paper presents a multichannel digital processor based on a configurable computing (FPGA) device for acquisition and programmable data processing in multi-detector systems. Main features of the processor are reconfigurability, linearity, low noise and processing data rate through hardware and firmware architecture solutions that also allow the system to operate in presence of electromagnetic noise,...
The High Efficiency Neutron Detector Array (HENDA) project at the Spallation Neutron Source (SNS), Oak Ridge Tennessee, has driven the need for state of the art radiation detector readout electronics. Readout electronics of this class must support multi-channel inputs while providing a high level of integration and precision. The Patara II ASIC targets this need by integrating a charge sensitive front...
A hybrid pulse shape discrimination (PSD) method is presented that combines a charge-integration PSD method with a reference-pulses PSD method. The reference-pulses PSD method uses detailed knowledge of the average detector response to radiation. To obtain the reference pulses, many thousands of neutron and gamma-ray pulses were averaged in several pulse height regions. The average neutron and gamma-ray...
Recently digital X-ray detector, often called Active-Matrix Flat Panel Detector (AMFPD), have been researched by using either the direct or the indirect conversion method in order to form the digital image. In this paper, we introduced the concept of Hybrid method using phosphor layer to complement a weak point of direct conversion method having low conversion efficiency about X-ray. The Hybrid receptor...
The quality of the output stage is key to the performance of low-noise CMOS preamplifiers for semiconductor detectors, especially when the preamplifier signal is to be transmitted to a remote receiver. This work deals with two implementations of an output-stage circuit architecture particularly suited for low-noise integrated preamplifiers of X and gamma-ray detector signals. The aim is to conjugate...
This work is concerned with the design and characterization of deep N-well (DNW) monolithic active pixel sensors (MAPS) fabricated in a vertical integration (3D) CMOS technology. These devices come as an evolution of DNW MAPS fabricated in a planar (2D) CMOS process, whose resolution, detection efficiency and charge collection efficiency are expected to improve as a result of the increased functional...
Energy resolved X-ray imaging can be used as a tool to analyze the variation in the chemical content of an object. In this work we have used energy resolved X-ray imaging to measure the variation in the chemical content of paper and paper coating. This is an important quality parameter for the paper industry. In order to separate the variation in coating thickness from the variation in paper thickness,...
The European free electron laser (XFEL) will provide trains of 12.4 keV X-ray photons. With a repetition frequency of 10 Hz 0.6ms long trains with 3000 bunches will be generated with a bunch to bunch separation of 200 ns. For experiments at XFEL the AGIPD consortium is developing a 2-dimensional 1Mega pixel detector to record individual pictures for bunches separated by 200 ns. As a first step ??200...
The exploration of the vertically integrated circuits, also commonly known as 3D-IC technology, for applications in radiation detection started at Fermilab in 2006. This paper examines the opportunities that vertical integration offers by looking at various 3D designs that have been completed by Fermilab. The emphasis is on opportunities that are presented by through silicon vias (TSV), wafer and...
The COMPASS experiment (COmpact Muon Proton Apparatus for Structure and Spectroscopy) is a fixed target experiment located at the CERN Super Proton Synchrotron. The physics program is focused on the study of hadron structure and hadron spectroscopy with high intensity muon and hadron beams, up to 160 GeV/c for muons and 190 GeV/c for hadrons respectively. To allow the tracking of charged particles...
This paper reports on the R&D status of a large-aperture Hybrid Avalanche Photo-Detector (HAPD). We have developed a 13-inch aperture HAPD and its readout system. The HAPD is a photo detector expected to replace the photomultiplier tube (PMT) in next-generation next-generation imaging water Cherenkov detectors such as Hyper Kamiokande. We will present the recent progress made in readout system...
The PANDA experiment at the new FAIR facility in Darmstadt, Germany, will be investigating unresolved questions of non-perturbative QCD. The experiment is designed to make use of internal targets in the p storage ring HESR (design luminosity: 2 . 1032 cm-2 s-1, pp-annihilation rate: 2 . 107 s-1), requiring continuous operation of all detectors. One option for its central tracking unit is a Time Projection...
Iterative image reconstruction of data measured by a Compton scattering camera has to overcome various difficulties, e.g. a large amount of data, noise arising from both low counts recorded and imaging response, etc. Several approaches were proposed trying to attain an efficient Compton scattered data reconstruction. A forward step is introduction of list-mode data acquisition, which represents an...
Stationary multi-pinhole SPECT system allows acquisition of multiple projections at the same time such that the high-resolution kinetic information can be obtained without rotating the camera. In this case, image reconstruction can be performed on the data collected without rotating detector heads and enable dynamic data acquisition as PET does. To achieve high resolution stationary multi-pinhole...
Small animal PET imaging requires both high resolution and high sensitivity in order to detect small amounts of radiopharmaceutical with precision. Semiconductor detector such as cadmium telluride (CdTe) makes it possible to localize gamma ray interactions in 3D at submillimetric scale, enabling the design of PET system architectures with innovative geometries. Indeed, thank to a good knowledge of...
The DEPFET technology has been chosen as the baseline for the vertex pixel detector of the Belle II experiment at KEK\Japan. This detector consist of 22 modules, each proposed to be equipped with 2 ?? 250 ?? 512 pixel. With the proposed average readout frequency of 10 kHz and 30 kHz peak rate a huge data stream of approx. 100 Gbit/s will be generated. To reduce this data stream to a more feasible...
We present the design and performance of the ABCN-25 readout chip implemented in 0.25 ??m CMOS technology. The front-end design has been optimized for the short, 2.5 cm, silicon strips foreseen in the upgrade of the ATLAS Inner Detector. The core of the readout architecture includes binary front-end, two levels of data buffering, data compression and data serializing circuitry, and is similar to the...
The High Efficiency Multimode Imager (HEMI) is an instrument currently under development for the purpose of detecting, locating, and spectroscopically characterizing gamma-ray emission sources at long-range standoff distances. The instrument design consists of multiple planes of relatively large-volume, good-energy-resolution detector modules configured for combined coded aperture and Compton scatter...
In this work we report on the performance of the MA-PMT prototype, Hamamatsu H8500C-100 MOD 8, with reduced dynode stages (eight) and super bialkali photocathode (38% Q.E. @ 380 nm). This tube represents the latest technological advancement to improve energy and spatial resolution of gamma imagers. It is particularly suitable for applications involving new high light yield scintillators. To evaluate...
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