SOXS NIR: Optomechanical integration and alignment, optical performance verification before full instrument assembly
Abstract
This paper presents the opto-mechanical integration and alignment, functional and optical performance verification of the NIR arm of Son Of X-Shooter (SOXS) instrument. SOXS will be a single object spectroscopic facility for the ESO-NTT 3.6-m telescope, made by two arms high efficiency spectrographs, able to cover the spectral range 350 2050 nm with a mean resolving power R~4500. In particular the NIR arm is a cryogenic echelle cross-dispersed spectrograph spanning the 780-2050 nm range. We describe the integration and alignment method performed to assemble the different opto-mechanical elements and their installation on the NIR vacuum vessel, which mostly relies on mechanical characterization. The tests done to assess the image quality, linear dispersion and orders trace in laboratory conditions are summarized. The full optical performance verification, namely echellogram format, image quality and resulting spectral resolving power in the whole NIR arm (optical path and science detector) is detailed. Such verification is one of the most relevant prerequisites for the subsequent full instrument assembly and provisional acceptance in Europe milestone, foreseen in 2024.
Cite
@article{arxiv.2407.17244,
title = {SOXS NIR: Optomechanical integration and alignment, optical performance verification before full instrument assembly},
author = {M. Genoni and M. Aliverti and G. Pariani and L. Oggioni and F. Vitali and F. D'Alessio and P. D'Avanzo and S. Campana and M. Munari and R. Zanmar Sanchez and A. Scaudo and M. Landoni and D. Young and S. Scuderi and P. Schipani and M. Riva and R. Claudi and K. Radhakrishnan and F. Battaini and A. Rubin and A. Baruffolo and G. Capasso and R. Cosentino and O. Hershko and H. Kuncarayakti and G. Pignata and S. Ben-Ami and A. Brucalassi and J. Achren and J. A. Araiza-Duran and I. Arcavi and L. Asquini and R. Bruch and E. Cappellaro and M. Colapietro and M. Della Valle and M. De Pascale and R. Di Benedetto and S. D'Orsi and A. Gal-Yam and M. Hernandez Diaz and J. Kotilainen and G. Li Causi and L. Marty and S. Mattila and M. Rappaport and D. Ricci and B. Salasnich and S. Smartt and M. Stritzinger and H. Ventura},
journal= {arXiv preprint arXiv:2407.17244},
year = {2024}
}
Comments
SPIE Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 130962T (2024)