PANIC: the new panoramic NIR camera for Calar Alto
Abstract
PANIC is a wide-field NIR camera, which is currently under development for the Calar Alto observatory (CAHA) in Spain. It uses a mosaic of four Hawaii-2RG detectors and covers the spectral range from 0.8-2.5 micron(z to K-band). The field-of-view is 30x30 arcmin. This instrument can be used at the 2.2m telescope (0.45arcsec/pixel, 0.5x0.5 degree FOV) and at the 3.5m telescope (0.23arcsec/pixel, 0.25x0.25 degree FOV). The operating temperature is about 77K, achieved by liquid Nitrogen cooling. The cryogenic optics has three flat folding mirrors with diameters up to 282 mm and nine lenses with diameters between 130 mm and 255 mm. A compact filter unit can carry up to 19 filters distributed over four filter wheels. Narrow band (1%) filters can be used. The instrument has a diameter of 1.1 m and it is about 1 m long. The weight limit of 400 kg at the 2.2m telescope requires a light-weight cryostat design. The aluminium vacuum vessel and radiation shield have wall thicknesses of only 6 mm and 3 mm respectively.
Cite
@article{arxiv.0807.4064,
title = {PANIC: the new panoramic NIR camera for Calar Alto},
author = {H. Baumeister and M. Alter and M. C. Cardenas Vazquez and M. Fernandez and J. Fried and J. Helmling and A. Huber and J. Ibanez Mengual and J. F. Rodriguez Gomez and W. Laun and R. Lenzen and U. Mall and V. Naranjo and J. Ramos and R. Rohloff and A. Garcia Segura and C. Storz and M. Ubierna and K. Wagner},
journal= {arXiv preprint arXiv:0807.4064},
year = {2009}
}
Comments
This paper has been presented in the SPIE of Astronomical Telescopes and Instrumentation 2008 in Marseille (France)