CFHT-WIRCam: interlaced science and guiding readout with the Hawaii-2RG IR sensor

Marc R. Baril; Jeff Ward; Douglas Teeple; Greg Barrick; Loic Albert; Martin Riopel; Shiang-Yu Wang

doi:10.1117/12.672113

28 June 2006 CFHT-WIRCam: interlaced science and guiding readout with the Hawaii-2RG IR sensor

Marc R. Baril, Jeff Ward, Douglas Teeple, Greg Barrick, Loic Albert, Martin Riopel, Shiang-Yu Wang

Proceedings Volume 6269, Ground-based and Airborne Instrumentation for Astronomy; 62690Z (2006) https://doi.org/10.1117/12.672113
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

CFHTs experience with interlacing science and guide pixel readout using the Hawaii-2RG infrared sensors on WIRCam has been problematic due to timing limitations inherent to this approach as well as unexpected behaviour in the sensors themselves. These problems have been overcome by implementing high-speed readout (1.4 s per read) for WIRCam's array of four Hawaii-2RG sensors, obviating the need for interlaced readout. The effect of the reset anomaly on the science and guide frames has been minimized by introducing suitable delays and a clocking scheme that does not significantly impact the minimum exposure time of the camera.

Citation Download Citation

Marc R. Baril, Jeff Ward, Douglas Teeple, Greg Barrick, Loic Albert, Martin Riopel, and Shiang-Yu Wang "CFHT-WIRCam: interlaced science and guiding readout with the Hawaii-2RG IR sensor", Proc. SPIE 6269, Ground-based and Airborne Instrumentation for Astronomy, 62690Z (28 June 2006); https://doi.org/10.1117/12.672113

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