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A beam detector with self-triggering capabilities for experiments with secondary pion beams at the HADES1 spectrometer at GSI Darmstadt has been developed. The device should allow for an event-based reconstruction of the momentum of the secondary pion beam that has a momentum spread of about 8%. The pion momentum will be reconstructed from its position in the X-Y plane 18m and 3m upstream from the...
CMOS integrated SPAD array design normally enforces a compromise between circuit functionalities and optical detection fill factor, never quite reaching the ideal detector configuration when both are integrated together on the same substrate. The emergence of vertical 3D integrated circuits (3DIC) changes this restriction and further adds in heterogeneous electronic integration, opening technological...
In this note we present the control software for the data acquisition system of the NA62 experiment. We list the requirements that were set at the beginning of the implementation and describe the technological and architectural choices that were made in order to fulfil them.
The NA62 experiment at CERN SPS aims to increase the precision in the measure of the Branching Ratio of the K+ → π+vv̄ decay. Efficient veto systems are needed to achieve the required background suppression level. The LKr, covering the angular range 1–10 mrad, is part of system vetoing photons due to π0 decay (from K+ → π + π0). This paper deals with the implementation of the LKr L0 trigger peak reconstruction...
Multilayered detectors composed of scintillation fibers and thin gaseous detectors have been studied for fast and precision dose measurement for dynamic-mode particle therapy. In the R&D of the dose measurement with scintillation fibers, a prototype detector composed of 10 scintillation-fiber layers operating in a signal processing and DAQ speed of 250 Hz was constructed and tested with 43-MeV...
EndoTOFPET-US collaboration aims at the development of a multimodal imaging technique for endoscopic pancreas and prostate exams that combines the benefits of high resolution metabolic information from Time-Of-Flight Positron Emission Tomography and anatomical information from ultrasound. This endoscopic, Region-Of-Interest specific and asymmetric PET system calls for an application-specific high-performance...
Recently, various PET-MRI systems with silicon photomultiplier (SiPM) arrays have been developed by many research groups [1–3]. We previously proposed the concept of a multi-modal compatible “flexible” PET scanner [4]. The scanner consists of adjustable two detector heads and scans a patient lying on a bed equipped with another medical device such as CT, MR and radiotherapy device. In this study,...
The continuous environmental radiation monitoring is very important after Fukushima accident especially for the evaluation of the decontamination. A portable gamma camera system is designed and fabricated with a compact digital front-end detector. A front-end detector consists of an 12 × 12 GAGG-APD (pixel size = 2 × 2 × 5 mm3) array combined with 144 channel Time over Threshold based ASIC. All the...
The concept of a tile hadron calorimeter (HCAL) for the International Linear Collider (ILC) has been developed. A major aspect is the improvement of the jet energy resolution by measuring details of the shower development and combining them with the data of the tracking chamber (particle flow). The concept utilizes scintillating tiles that are read out by novel Silicon Photomultipliers (SiPMs) and...
DSSC is one of several 2D megapixel detectors currently being built for the European XFEL at DESY, Hamburg. DSSC acquires 8-bit digitized image-series of 700 frames at a sample rate of 4.5MHz. Repetition rate is 10Hz. Non-linear sensor characteristics improves the low-energy resolution. DSSC readout operation involves several subsystems: overall clock and timing control distributed from the XFEL machine...
In-beam positron emission tomography (PET) is a clinically proven imaging technique for the online investigation of position emitters induced by hadron irradiation. Because the PET involves the use of many photodetectors, the data acquisition (DAQ) system of the PET system requires many elements and a high processing speed to handle many input signals and complex data sets simultaneously. To create...
The European X-Ray Free Electron Laser (XFEL) will provide ultra short, highly coherent X-ray pulses which will revolutionize scientific experiments in a variety of disciplines spanning physics, chemistry, materials science, and biology.
High energy physics experiments in the intensity frontier push at the limit the detector resolutions. This is the also case for the upgrade of the MEG experiment that requires a design of a new drift chamber to track 52.8 MeV positrons with a single hit resolution of about 100 µm. In order to to compare the tracking performances of various prototypes implementing different cell configurations, a high...
Silicon photomultipliers (SiPM) are becoming more and more popular in different fields of physics. The use of SiPM arrays requires a data acquisition (DAQ) system capable of reading multiple channels for each event. A DAQ system for the control and the readout of 64-channel detectors was designed and fabricated. Significant improvements in performance and new functionalities have been done. The performance...
The ATLAS trigger system plays a key role in the collection of data for a wide range of physics analyses. The 2012 proton run had significantly larger luminosities and pile-up than the 2011 run. To address these challenges while maintaining or even improving performance, new algorithms have been commissioned. The trigger strategy and the main algorithms and their performance are described. For the...
We have proposed a novel practical nuclear pulse digitizing method, called linear TOT scheme, which linearly converts the peak amplitude of pulses into the time-over-dynamic-threshold (TODT) to realize the digitization by a TDC. In this paper, we are presenting a prototype design of an FPGA based 64-channel DAQ system for a continuous crystal PET detector using the linear TOT scheme. The system mainly...
For MeV gamma ray astronomy, we have developed an Electron Tracking Compton Camera (ETCC) as a MeV gamma ray telescope in the next generation. Our detector consists of a gaseous Time Projection Chamber (TPC), which uses μ-PIC as the two-dimensional readout detector, and a position sensitive scintillation camera. We launched a small size ETCC with a 10 cm × 10 cm × 15 cm TPC loaded on a balloon in...
Functional and anatomic imaging of small animals using PET combined with MRI has been reported to be a valuable tool in the preclinical research. The purpose of this study was to develop high resolution MR compatible PET detector along with event positioning circuit (EPC) and data acquisition system (DAQ) for small animal PET. PET detector modules consisted of a 8 × 8 array of 1.5 × 1.5 × 6 mm3 LYSO,...
We evaluated the timing performance of our data acquisition system (DAQ) with compressed sensing detectors we used in a PET insert for simultaneous PET/MR brain imaging. Compressed sensing is a promising multiplexing method that can achieve high multiplexing ratio while resolving simultaneous hits on multiple pixels without serious degradation of timing and energy resolution for positron emission...
The ARGO-YBJ experiment has been in stable data taking since November 2007 till February 2013 at the YangBaJing Cosmic Ray Laboratory (Tibet, P.R. China, 4300 m a.s.l.). Its main fields of research include gamma-ray astronomy with an energy threshold of a few hundreds GeV and Cosmic Ray physics up to PeV energies. The ARGO-YBJ detector consists of a single layer of RPCs operated in streamer mode,...
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