GRAVITY detector systems

Leander H. Mehrgan; Gert Finger; Frank Eisenhauer; Johana Panduro

doi:10.1117/12.2234731

4 August 2016 GRAVITY detector systems

Leander H. Mehrgan, Gert Finger, Frank Eisenhauer, Johana Panduro

Proceedings Volume 9907, Optical and Infrared Interferometry and Imaging V; 99072F (2016) https://doi.org/10.1117/12.2234731
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

GRAVITY is a second generation instrument for the VLT Interferometer, designed for high-precision narrow-angle astrometry and phase-referenced interferometric imaging in the K-band. It will combine the AO corrected beams of the four VLT telescopes. In total, the GRAVITY instrument uses five eAPD detectors four for the infrared wavefront sensors of each telescope and one for the fringe tracker. In addition two Hawaii2RG arrays are installed, one for the acquisition camera and one for the spectrometer. The SAPHIRA eAPD array is a newly developed near-infrared detector with sub-electron noise performance at frame rates > 1Kfps. For all seven detectors the ESO common controller, NGC, is used. This paper presents an overview and comparison of GRAVITY detector systems and their final performances at the telescope

Citation Download Citation

Leander H. Mehrgan, Gert Finger, Frank Eisenhauer, and Johana Panduro "GRAVITY detector systems", Proc. SPIE 9907, Optical and Infrared Interferometry and Imaging V, 99072F (4 August 2016); https://doi.org/10.1117/12.2234731

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available