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Título del libro: 2017 Ieee Nuclear Science Symposium And Medical Imaging Conference, Nss/mic 2017 - Conference Proceedings
Título del capítulo: Present status of the FARCOS detection system

Autores UNAM:
LUIS ARMANDO ACOSTA SANCHEZ; JOSE FRANCISCO FAVELA PEREZ;
Autores externos:

Idioma:
Inglés
Año de publicación:
2018
Palabras clave:

Budget control; Cesium iodide; Germanium compounds; Particle detectors; Silicon detectors; Telescopes; Absorption length; Charge preamplifier; Double-sided silicon strip detectors; Energy resolutions; Front end electronics; Pulse shape analysis; Telescope structures; Truncated pyramids; Medical imaging


Resumen:

Few years ago we proposed a novel detection system textbf- named FARCOS (Femtoscopy ARray for COrrelations andSpectroscopy) - to target different open cases in nuclear physics. The basic cluster unit of the FARCOS array is a telescope structure with an active area of 6.4 \times 6.4 cm^{\mathbf {2}} composed of three detection stages. The first two detection layers are DC-coupled Double-Sided Silicon Strip Detectors (DSSSDs), 300 \mu \textbf{m} thick and 1500 \mu \textbf{m} thick, featuring 32 \times 32 orthogonal strips. The third stage, acting as calorimeter, is composed of four truncated pyramids of CsI(Tl) crystals with an active area of 3.2 \times 3.2 cm^{\mathbf {2\, }}textbfand an absorption length of 6 cm arranged in window configuration. The final system will be a modular assembly of 20 telescopes.A key feature of FARCOS is the identification of the particles stopping even in the first detection layer, relying on pulse shape analysis techniques. The FARCOS frontend electronics features a full scale energy range up to 2 GeV with 5 different selectable ranges and an energy resolution down to 10 keV FWHM with a power budget of about 10 mW/channel in the case of the lower full scale energy range. Its core is a custom multichannel charge preamplifier VLSI chip.The system performance has been extensively qualified on few workhorses in view of the assembly of the final telescopes foreseen for 2018. © 2017 IEEE.


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