Wyoming prime-focus near-infrared camera

Spillar, Earl J.; Johnson, Paul E.; Wenz, M.; Warren, David W.

doi:10.1117/12.19072

Cited by 1 publication

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“…BIRCAM was designed for use at the Cassegrain focus of the 24 inch f/8 DFM 3 telescope at RBO. Based on the need to use as much existing hardware as possible, the cryostat for BIRCAM was modified from a NIR camera originally designed for prime focus at the Wyoming Infrared Observatory (WIRO), known as BABE (Spillar et al 1990, Barnaby et al 1994). The BABE cryostat was built as a "down-looking" liquid nitrogen (LN 2 ) system with a 3 L capacity LN 2 tank.…”

Section: Cryostat Designmentioning

confidence: 99%

BIRCAM: A Near-Infrared Camera for The University of Wyoming Red Buttes Observatory

Monson¹,

Pierce²

2009

PUBL ASTRON SOC PAC

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We describe the design and performance of a near-infrared camera for use at the University of Wyoming 24 inch telescope at Red Buttes Observatory. The camera makes use of a HAWAII-2 2048 × 2048 pixel HgCdTe array, sensitive from 0.9-2.5 μm. The array is operated with a Generation III controller from Astronomical Research Cameras and makes use of a General Use Multi-Channel Preamplifier from IRLabs. The camera optics consist of a compact 1:1 re-imaging Offner relay with a cold pupil mask and includes a nine-position filter wheel driven internally with a cryogenically conditioned steppermotor. The primary objective was to develop a low-cost system for testing the HAWAII-2 array and electronics that were acquired for a larger project, while at the same time providing a temporary near-infrared camera for use at Red Buttes Observatory. In this article we present various aspects of the mechanical construction, optics, electronics, and performance.

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Section: Cryostat Designmentioning

confidence: 99%