Sumários

CCDs [Part III]

25 Setembro 2025, 11:30 • André Maria da Silva Dias Moitinho de Almeida

Defects and non intended use
  • Saturation and load spillage ("blooming")
  • Defects: Cold / hot pixels and columns

Instrument signatures from CCD images
  • Bias /overscan
  • Dark current
  • Flat fields
  • Fringing

CCD image processing (Part I)

23 Setembro 2025, 09:00 • André Maria da Silva Dias Moitinho de Almeida

  • Tutorial on fits image file manipulation in python
  • Inspection of image metadata (content of headers)

CCDs [Part II]

23 Setembro 2025, 08:00 • André Maria da Silva Dias Moitinho de Almeida

Spectral sensitivity
  • Atmospheric transmission and UV cut'off
  • "Thick Front-side Illuminated" CCDs
  • Thinned Back-side Illuminated CCDs
  • "Deep Depletion" CCDs
  • Anti-reflective coatings and other coatings for modifying spectral response
  • Color CCDs

CCDs [Part I]

18 Setembro 2025, 11:30 • André Maria da Silva Dias Moitinho de Almeida

Introduction: What is a CCD
  • Aspect of CCDs
  • The physical basis: semiconductor photoconduction
  • Charge transfer. Bucket Conveyor Analogy
  • Charge transfer efficiency and size limitations for CCDs
  • Structure of CCDs. geometry, components, and assembly

The electric field in CCDs
  • Electrical potential at the semiconductor junction
  • Charge collection
  • Charge transfer: electronic description
  • Acquisition 
  • Reading

Software installation and configuration

16 Setembro 2025, 09:00 • André Maria da Silva Dias Moitinho de Almeida

Installation and configuration of the necessary software for use in the PLs.