14 documents found, page 1 of 2
Simulation results on a real-time in water tritium monitor
Azevedo, C. D. R.; Baeza, A.; Chauveau, E.; Corbacho, J. A.; Díaz, J.; Domange, J.; Marquet, C.; Martínez-Roig, M.; Piquemal, F.; Veloso, J. F. C. A.In this work we present simulation results for a modular tritium in-water real-time monitor. The system allows for scalability in order to achieve the required sensitivity. The modules are composed by 340 uncladed scintillating fibers immersed in water and 2 photosensors for light readout. Light yield and Birks' coefficient uncertainties for low energy beta particles is discussed. A study of the detection effic...
An homeopathic cure to pure Xenon large diffusion
Azevedo, C. D. R.; Fernandes, L. M. P.; Freitas, E. D. C.; Gonzalez-Diaz, D.; Monrabal, F.; Monteiro, C. M. B.; Santos, J. M. F. dos
First in-beam studies of a Resistive-Plate WELL gaseous multiplier
Bressler, S.; Moleri, L.; Pitt, M.; Kudella, S.; Azevedo, C. D. R.; Amaro, F. D.; Jorge, M. R.; Santos, J. M. F. dos; Veloso, J. F. C. A.
The Resistive-Plate WELL with Argon mixtures - a robust gaseous radiation detector
Moleri, L.; Amaro, F. D.; Arazi, L.; Azevedo, C. D. R.; Oliveri, E.; Pitt, M.; Schaarschmidt, J.; Shaked-Renous, D.; Santos, J. M. F. dos
Sensitivity of NEXT-100 to neutrinoless double beta decay
NEXT Collaboration; Martín-Albo, J.; Vidal, J. Muñoz; Ferrario, P.; Nebot-Guinot, M.; Gomez-Cadenas, J. J.; Álvarez, V.; Azevedo, C. D. R.
A robust large area x-ray imaging system based on 100 μ m thick Gas Electron Mu...
Amaro, F. D.; Mir, J. A.; Carvalho, X.; Azevedo, C. D. R.; Santos, J. M. F. dos; Luz, H. Natal da
Gain Characteristics of a 100 μm thick Gas Electron Multiplier (GEM)
Mir, J. A.; Luz, H. Natal da; Carvalho, X.; Azevedo, C. D. R.; Santos, J. M. F. dos; Amaro, F. D.
Beam studies of novel THGEM-based potential sampling elements for Digital Hadro...
Bressler, S.; Arazi, L.; Luz, H. Natal da; Azevedo, C. D. R.; Moleri, L.; Oliveri, E.; Pitt, M.; Rubin, A.; Santos, J. M. F. dos; Veloso, J. F. C. A.
Characterization of an energy dispersive X-ray fluorescence imaging system base...
Silva, A. L. M.; Azevedo, C. D. R.; Oliveira, C. A. B.; Santos, J. M. F. dos; Carvalho, M. L.; Veloso, J. F. C. A.An Energy Dispersive X-ray Fluorescence (EDXRF) imaging system based on a Micropattern Gas Detector has already shown good results for di erent applications. An X-ray tube, a pinhole camera and a Micro-Hole and Strip Plate (MHSP) based detector are the main components of the experimental system. The detector uses an MHSP in a Xe atmosphere at 1 bar, acting as a photon counting device, i.e., it is capable to rec...
High-rate operation of the Micro-Hole and Strip Plate gas detector
Veloso, J. F. C. A.; Caldas, C. C.; Oliveira, C. A. B.; Azevedo, C. D. R.; Santos, J. M. F. dos; Breskin, A.; Chechik, R.We report the performance of the Micro-Hole-and-Strip-Plate (MHSP) operated in xenon, under high-flux irradiation of a 30-kV X-ray Cu-tube. Stable operation in pulse-counting mode for gas gains above 104 was measured up to counting rates of 5×105 Hz/mm2. A gain variation of less than 5% was observed for gains of 104, while the energy resolution for 8-keV X-rays degrades from ~16% to ~18%. No visible degradation...