CCD cameras at IJAF


Installation of the mosaic CCDs

Among the CCD cameras delivered by IJAF in operation at observatories around the world are:

Detector Instrument Telescope Documentation
CCD42-40 #1064-17-06 ALFOSC NOT test report
The latest upgrade of the ALFOSC camera took place in September 2003, providing an E2V CCD42-40 with improved RON and MTF.
In case you need information on the previously used CCDs, here are reports on the W19-(0,0) (used Feb 1998 - Sep 2003), W11-3 and the W11-4 .

Detector Instrument Telescope Documentation
W14-2 HiRAC NOT test report
The HiRAC science camera is a 2k² Loral ultra-thinned PPtF coated CCD. The camera was commissioned in December 1996 with the detector named W14-2, or CCD#4 after the new NOT nomenclature. Some problems with maintaining the sensitivity are reported.

Detector Instrument Telescope Documentation
CCD 44-82 "Ringo" DFOSC Danish 1.5m test report
The camera for the DFOSC is the MAT/EEV CCD 44-82 "Ringo". This camera was commissioned in September 2000.
Here is the test report on the previous detector, a Loral 2k by 2k W7-(0,0), commissioned in April 1997.
The La Silla ODT closely monitors the camera performance, as can be seen here.
April 2001: Here is a report from Martin Robert Knudsen, stating that the amplifier B low gain now is approx. 3.5e-/ADU, and a method for linearity correction is presented.
Detectors Instrument Telescope Documentation
W15-(1,0), W17-(1,1), W19-(1,0), W20-(0,0) MOSCA NOT test report
The mosaic camera for direct imaging at the NOT was commissioned in October 2002.

Cameras planned or in progress

Here you can see the detector laboratory test facilities

The user interface to the cameras is a program called BIAS, running in a unix/X11 environment.
Here is the user's manual for the BIAS system, revised August 2000, in gzipped postscript format and gzipped RTF format .

Here is the text from the BIAS help page .

Here is a description of the controller, camera and software, "A versatile PC-based CCD camera system", written by Jens Klougart.
Compressed postscript format , PDF format
This was presented at the "IS&T/SPIE's Symposium on Electronic Imaging: Science & Technology", February 5 - 10, 1995, and published in SPIEE Conf. Proc. Vol 2416, p. 65.

Our Loral CCDs are prepared by the Steward Observatory CCD Laboratory

Restricted information for IJAF staff only


The background pattern is an image of the electrodes defining the pixels of a thinned Loral 2k² CCD. The image was obtained using a SBIG ST-5 CCD camera mounted on a microscope. Looking through a 1060nm filter, the CCD is almost completely transparent, making the electrodes visible from the back side.

Back to IJAF home

Last updated May 5, 2004