Optics

Electrical engineering

Operating system

Charge-coupled device

Computer science

Physics

Artificial intelligence

Noise (video)

Image (mathematics)

Engineering

Electronic engineering

Front and back ends

Fully depleted thick CCDs have been designed for infrared astronomy, but their low read-out noise of the order of ≈ 2 e <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-</sup> and their considerable mass of ≈ 5.2g, 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 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/...

A low noise digital readout system for scientific charge coupled devices