@inproceedings{35a3aa8e13104ad097ed3c15c49f9a13,
title = "Sphinx: a massively multiplexed fiber positioner for MSE",
abstract = "In this paper we present the Australian Astronomical Observatory's concept design for Sphinx - a fiber positioner with 4,332 {"}spines{"} on a 7.77mm pitch for CFHT's Mauna Kea Spectroscopic Explorer (MSE) Telescope. Based on the Echidna technology used with FMOS (on Subaru) and 4MOST (on VISTA), the next evolution of the tilting spine design delivers improved performance and superior allocation efficiency. Several prototypes have been constructed that demonstrate the suitability of the new design for MSE. Results of prototype testing are presented, along with an analysis of the impact of tilting spines on the overall survey efficiency. The Sphinx fiber positioner utilizes a novel metrology system for spine position feedback. The metrology design and the careful considerations required to achieve reliable, high accuracy measurements of all fibers in a realistic telescope environment are also presented.",
keywords = "AAO, Echidna, Fiber positioner, instrumentation, MSE, multi-fiber, piezo actuator, spine",
author = "Scott Smedley and Gabriella Baker and Rebecca Brown and James Gilbert and Peter Gillingham and Will Saunders and Andrew Sheinis and Sudharshan Venkatesan and Lew Waller",
year = "2018",
month = jul,
day = "6",
doi = "10.1117/12.2310021",
language = "English",
isbn = "9781510619579",
series = "Proceedings of SPIE",
publisher = "SPIE",
pages = "1--18",
editor = "Evans, {Christopher J.} and Luc Simard and Hideki Takami",
booktitle = "Ground-based and Airborne Instrumentation for Astronomy VII",
address = "United States",
note = "Ground-based and Airborne Instrumentation for Astronomy VII 2018 ; Conference date: 10-06-2018 Through 14-06-2018",
}