NEXT GENERATION OPTICAL SPECTROGRAPH FOR NOAO

Table of Contents

NEXT GENERATION OPTICAL SPECTROGRAPH FOR NOAO

Design Goals for a New Spectrograph

Science with NGOS

Science with NGOS (continued)

Why a New Spectrograph?

Advantages of NGOS at NOAO

VPH Grating Technology

VPH Gratings (continued)

Beam Diameter

VPH Grating Angular Bandwidth

Tunable Spectrograph Concept

Design Challenges

F/6 vs F/8 Implementation

F/6 Optical Layout Concept

Monolithic vs Quadrant Spectrographs

Estimated Efficiency*

Development Timeline

Community Feedback Requested

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