CCDSPEC
CCDSPEC is an integrating CCD
spectrograph suitable for the long exposures needed for faint light
sources. Wheras the TVSPEC instruments are limited to 1/25th second
exposure, CCSPEC can integrate for seconds or minutes.
It is available as a laboratory instrument or as an astronomical
version,
which has a perforated slit for ease of acquisition, when used on small
astronomical telescopes.
It is normally fitted with a
Meade DSI I CCD, but other CCD Cameras may be fitted with suitable
adapters.
Typical uses of CCDSPEC
Laboratory Spectra
- Any situation where the
sensitivity of TVSPEC is insufficient because of the low light levels
involved, such as fluorescence,
thermoluminescence, bioluminescence, transient phenomena and
chemiluminescence.
Astronomical Spectra
-when attached to a small
astronomical telescope the instrument has the capability of obtaining
the spectra stars, planets and
gaseous nebulae. The slit has a 1mm aperture at its centre to allow
acquisition and to allow for slitless spectra
of such line emitting sources as planetary nebulae. For stellar
spectra, the star is first acquired in the central
aperture and then moved on to the 50 micron slit. Any telescope used
with the CCDSPEC will need to have an accurate
driving mechanism and guidance system to keep the star on the slit
during long exposures.
Analysis of the spectra is possible by using various commerical
software and
VisualSpec
which is free.
Resolution
< 3nm
Intensity resolution 16bits (0-65536)
Image Files Supported FITS, jpg, bmp
Image size 508x488
Windows 98,XP,Vista
CCDSPEC £568+VAT