KEYWORDS: Sensors, Switches, Electronics, Telescopes, Signal detection, Infrared radiation, Electrons, Analog electronics, Space telescopes, Signal to noise ratio
TEXES is a high resolution mid-infrared spectrograph acting as a visiting instrument at the NASA IRTF and Gemini
North telescopes. Switching from high (R=100,000) to medium resolution (R=15,000), the noise becomes detector
dominated due to charge cascades in the low-background detector. This is remedied by lowering the bias voltage across
the detector, a problem during observing runs as it requires manual adjustment within the electronics. To save telescope
time, a bias selector has been created to allow the bias voltage to be switched from the control room between four
options. The options were chosen based upon signal to noise vs. bias voltage testing.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
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.