A5010636165- Radiation Detection and Scintillator Technologies
- Particle Detector Development and Performance
- Medical Imaging Techniques and Applications
- Advanced MRI Techniques and Applications
- Food, Nutrition, and Cultural Practices
- Astrophysics and Cosmic Phenomena
- Radiation Effects in Electronics
- Rural Development and Agriculture
- Neutrino Physics Research
- Atomic and Subatomic Physics Research
- CCD and CMOS Imaging Sensors
- Nuclear Physics and Applications
LIP - Laboratory of Instrumentation and Experimental Particle Physics
2005-2023
Laboratoire de Physique Subatomique et de Cosmologie
2006
The design and evaluation of the imaging system Clear-PEM for positron emission mammography, under development by PEM Consortium within framework Crystal Clear Collaboration at CERN, is presented. proposed apparatus based on fast, segmented, high atomic number radiation sensors with depth-of-interaction measurement capabilities, state-of-the-art data acquisition techniques. camera consists two compact planar detector heads dimensions 16.5/spl times/14.5 cm/sup 2/ breast axilla imaging....
We present the experimental characterization of TOFPET2, a readout and digitization ASIC for radiation detectors using Silicon Photomultipliers. The circuit is designed in CMOS 110 nm technology, has 64 independent channels optimized time-of-flight measurement PET or other applications. chip quad-buffered TDCs charge integration QDCs each channel. Coincidence Time Resolution (CTR) 511 keV photon pairs from 22Na point source measured with 2 × 3 mm3 LSO:Ce crystals co-doped 0.2% Ca 118 119 ps...
Abstract The barrel section of the novel MIP Timing Detector (MTD) will be constructed as part upgrade CMS experiment to provide a time resolution for single charged tracks in range 30–60 ps using LYSO:Ce crystal arrays read out with Silicon Photomultipliers (SiPMs). A major challenge operation such detector is extremely high radiation level, about 2 × 10 14 1 MeV(Si) Eqv. n/cm , that integrated over decade High Luminosity Large Hadron Collider (HL-LHC). exposed this level have shown strong...
The Clear-PEM detector is a positron emission mammography scanner based on high-granularity avalanche photodiode readout with 12 288 channels. front-end sub-system instrumented low-noise 192:2 channel amplifier-multiplexer ASICs and free-running sampling ADCs. off-detector trigger, implemented in FPGA architecture, computes the pulses amplitude timing required for coincidence validation from data streams. A high-level C++ simulation tool was developed acquisition performance analysis...
We have developed a highly integrated, fast and compact readout electronics for Silicon Photomultiplier (SiPM) based Time of Flight Positron Emission Tomography (TOF-PET) scanners. The is on the use TOP-PET Application Specific Integrated Circuit (PETsys TOFPET1 ASIC) with 64 channels, each its amplifier, discriminator, to Digital Converter (TDC) amplitude determination using Over Threshold (TOT). ASIC has 25 ps r.m.s. intrinsic time resolution fully digital output. system optimised high...
The clear-PEM detector is a positron emission mammography scanner based on high-granularity avalanche photodiodes readout with 12 288 channels. front-end sub-system instrumented low-noise 192:2 channel amplifier-multiplexer ASICs and free-running sampling ADCs. off-detector trigger, implemented in FPGA architecture, computes the pulses amplitude timing required for coincidence validation from data streams. A high-level C++ simulation tool was developed acquisition performance analysis...
The main aspects of the design and test (D&T) a reconfigurable architecture for data acquisition electronics (DAE) system clear-PEM detector are presented in this paper. application focuses medical imaging using compact PEM (positron emission mammography) with 12288 channels, targeting high sensitivity spatial resolution. DAE processes that comes from front-end (FE) identifies relevant transfers it to PC image processing. is supported novel D&T methodology, which hierarchy, modularity...
O ambiente alimentar pode ser definido como o conjunto de oportunidades e condições que influenciam as escolhas alimentares status nutricional das pessoas. objeivo do trabalho foi analisar comunitário no entorno duas Unidades Pronto Atendimento (UPA), localizadas em área socioeconomicamente geograficamente distintas município Santos, São Paulo, Brasil. Estudo natureza transversal, com abordagem quantitativa, realizado 2023. Para caracterização alimentar, utilizado instrumento desenvolvido...
We report on the design and tests results of a fully custom amplifier-comparator readout chip designed to be coupled silicon detectors with internal charge multiplication for precise timing applications. The ASIC has been developed in UMC 110nm CMOS technology aims fulfill CMS-TOTEM Precision Proton Spectrometer (CT-PPS) time resolution requirements (~30 ps per detector plane). Both LVDS outputs signal dynamic range match High TDC (HPTDC) system. Noise amplitude measurements test board are included.