IIIE   20352
INSTITUTO DE INVESTIGACIONES EN INGENIERIA ELECTRICA "ALFREDO DESAGES"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
A Low Noise Digital Readout System for Scientific Charge Coupled Devices
Autor/es:
ANGEL SOTO; MIGUEL SOFO HARO; LEONARDO STEFANAZZI; FERNANDO CHIERCHIE; KAREN HERNANDEZ; ALEJANDRO CASTANEDA; EDUARDO PAOLINI; NEAL WILSER; GUSTAVO CANCELO; GUILLERMO FERNANDEZ MORONI; RODRIGO CHAVEZ; TED ZMUDA; ALEJANDRO OLIVA
Lugar:
Mar del Plata
Reunión:
Congreso; XVII Reunión de Trabajo en Procesamiento de la Información y Control - RPIC 2017; 2017
Institución organizadora:
ICYTE- CONICET y Universidad Nacional del Mar del Plata
Resumen:
Abstract?Fully depleted thick CCDs have been designed for infrared astronomy, but their low read-out noise of the order of ≈2 e− and their considerable mass of ≈ 5.2 gr, allows novel uses for them in low energy threshold particle detection applications, such as the CONNIE and DAMIC experiments. For both experiments, a reduction of the CCD read-out noise is will produce an increase in the detection efficiency. Few works have demonstrated that is possible reduce the noise applying digital processing techniques, and it is a field that must be explored. In this work the design of a CCD digital acquisition system will be presented. The impact of key parameters as quantization noise, front-end gain and ADC noise will be analyzed. A prototype of the front-end electronics was successfully tested with a CCD exposed to X-rays, achieving 2.3e− of readout noise.