Sumários
CCDs [Part IV]
7 Outubro 2021, 08:00 • André Maria da Silva Dias Moitinho de Almeida
:: Instrumental signatures and other effects on CCD images
- Saturation and load spillage ("blooming")
- Defects: Cold / hot pixels and columns
CCDs [Part III]
30 Setembro 2021, 08:00 • André Maria da Silva Dias Moitinho de Almeida
:: Sources of noise
- Reading noise
- Dark current
- Photonic ("shot noise")
- Non-uniformity of pixels
CCD image processing (Part I)
28 Setembro 2021, 09:00 • André Maria da Silva Dias Moitinho de Almeida
This series of PLs consists of a practical exercise of removing instrumental signatures in "raw" images to transform them into "science ready" images.
- Introduction to IRAF CCD image processing software.
- Introduction to the DS9 image display software.
- "Unix Crash Course": file system, permissions, fundamental instructions.
CCDs [Part II]
28 Setembro 2021, 08:00 • André Maria da Silva Dias Moitinho de Almeida
- "Thick Front-side Illuminated" CCDs
- Thinned Back-side Illuminated CCDs
- "Deep Depletion" CCDs
- Anti-reflective coatings and others to modify the spectral response
CCDs [Part I]
23 Setembro 2021, 08:00 • André Maria da Silva Dias Moitinho de Almeida
:: Introduction: What is a CCD
- Aspect of CCDs
- Color 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
- Electrical potential at the semiconductor junction
- Charge collection
- Acquisition