Cooling Bolocam,
A New Camera for the Future LMT/GTM.
Daniel Rosa González¹, Lunming Yuen², Brooks Rownd²,
Klebert Feitosa², Phillip Mauskopf² and Eyal Gerecht².

 
 

Abstract

Millimeter wavelength observations occupy an increasingly important role in modern astronomy. The rapid evolution of millimeter wavelength bolometer array, such as SCUBA on the JCMT, MPIfR on the IRAM telescope or SuZIE on the CSO, has opened a new window on the universe allowing astronomers to make significant contributions in such diverse fields as the study of primeval galaxies and the early universe, anisotropies in the CMB due to the Sunyaev-Zel'dovich effect and protostars located inside dense molecular clouds.

Bolocam is a new millimeter-wave camera with 144 pixels. It will operate at wave lengths centered at 1.1, 1.4 and 2.1 mm with a spatial resolution of 43'' ($\lambda =$1.4 mm) at CSO telescope and 8'' at the LMT/GTM. This camera will have a mapping speed two orders of magnitude larger than any of the previous mentioned cameras.

The sensitivity of Bolocam is determined by the cryogenic system. This poster describes the actual stage of the cryogenic system which will cool the Bolocam receivers down to 300mK.

1.- INAOE, Luis Enrrique Erro 1. Tonantzintla, Puebla 72840. México.

2.- Department of Physics and Astronomy, University of Massachusetts at Amherst.

1999-01-20