An index of the current CCD documents on the web |
CCD requirements |
Camera
design requirements: this document is the 'top level' design document
for the CCD camera. Also available in pdf.
Technical notes |
The potential degradation of spectral resolution in Solar-b EIS CCDs: The effect of large amounts of charge transfer inefficiency (CTI) in the EIS CCDs will be to degrade the spectral line profile. This note attempts to quantify what the potential loss of spectral resolution could be given a range of operating temperatures (and hence CTI values).
Initial CCD temperature investigations: A discussion of the potential temperature requirements for EIS including dark signal and charge transfer inefficiency only in pdf currently
Initial consideration of the EIS radiation environment: A discussion on the effect of radiation on the EIS CCDs followed by a trawl through the literature provide a first estimate of the sort of problems we may encounter. Only available in pdf.
Radiation shielding investigations using SPENVIS: calculations (using the ESA programme SPENVIS) of the likely radiation dose encountered by the EIS CCDs. This information is then used to update the predicted radiated effects and estimate the required shielding parameters. Also available in pdf.
The effect of charge spreading on pixel resolution: As the EIS CCDs are backthinned (to maximise QE) there will be a small field free region in which the charge will not necessarily diffuse towards its 'pixel'. This charge spreading will effectively increase the CCD pixel size from 13.5µm to about 16µm. Also available in pdf.
Sectoring
effects on the radiation dose for a likely shielding design.
Using the ESA programme SPENIVS the likely radiation dose
which will be encountered taking into account the sectoring effects from
the likely shielding design.
Detailed Design Notes |
The MSSL procurement specification for the Marconi 42 series CCDs that will be used on EIS. Also available as pdf.
Design document for the Read Out Electronics -
pdf
only.
Other Stuff |
Some characterisation measurements on the 42-10 chips
On chip power dissipation (pdf)
The number of electrons generated per photon at EIS wavelengths
