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  • Lizon, Jean LouisEuropean Org Astron Res Southern Hemisphere, Karl Schwarzschild Str 2, D-85748 Garching, Germany (author)

Very accurate cryogenic mechanisms for CRIRES+

  • Article/chapterEnglish2018

Publisher, publication year, extent ...

  • SPIE-INT SOC OPTICAL ENGINEERING,2018
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:uu-373555
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-373555URI
  • https://doi.org/10.1117/12.2314483DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:kon swepub-publicationtype

Notes

  • After 5 years of operation on the VLT, a large upgrade of CRIRES (the ESO Cryogenic InfraRed Echelle Spectrograph) was decided mainly in order to increase the efficiency. Using a cross dispersion design allows better wavelength coverage per exposure. This means a complete re-design of the cryogenic pre-optic which were including a pre-dispersion stage with a large prism as dispersive element. The new design requires a move of the entrance slit and associated decker toward the first intermediate focal plane right behind the window. Implement 2 functions with high positioning accuracy in a pre-defined and limited space was a real challenge. The design and the test results recorded in the ESO Cryogenic Test Facility are reported in this paper. The second critical function is the grating wheel which positions the 6 cross disperser gratings into the beam. The paper describes the design of the mechanism which includes a detente system in order to guaranty the 5 arc sec positioning reproducibility requested. The design includes also feedback system, based on switches, in order to ensure that the right grating is in position before starting a long exposure. The paper reports on the tests carried out at cryogenic temperature at the sub-system level. It also includes early performances recorded in the instrument along the first phases of the system test.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Klein, BarbaraEuropean Org Astron Res Southern Hemisphere, Karl Schwarzschild Str 2, D-85748 Garching, Germany (author)
  • Molina-Conde, IgnacioEuropean Org Astron Res Southern Hemisphere, Karl Schwarzschild Str 2, D-85748 Garching, Germany (author)
  • Oliva, ErnestoOsservatorio Arcetri, INAF, Largo E Fermi 5, I-50125 Florence, Italy (author)
  • Escude, Guillem AngladaUniv Gottingen, Inst Astron, Friedrich Hund Pl 1, D-37077 Gottingen, Germany (author)
  • Bristow, PaulEuropean Org Astron Res Southern Hemisphere, Karl Schwarzschild Str 2, D-85748 Garching, Germany (author)
  • Dorn, Reinhold J.European Org Astron Res Southern Hemisphere, Karl Schwarzschild Str 2, D-85748 Garching, Germany (author)
  • Follert, RomanThuringer Landessternwarte Tautenburg, Sternwarte 5, D-07778 Tautenburg, Germany (author)
  • Hatzes, ArtieThuringer Landessternwarte Tautenburg, Sternwarte 5, D-07778 Tautenburg, Germany (author)
  • Heiter, UlrikeUppsala universitet,Observationell astrofysik(Swepub:uu)ulhei450 (author)
  • Ives, DerekEuropean Org Astron Res Southern Hemisphere, Karl Schwarzschild Str 2, D-85748 Garching, Germany (author)
  • Jung, YvesEuropean Org Astron Res Southern Hemisphere, Karl Schwarzschild Str 2, D-85748 Garching, Germany (author)
  • Lockhart, MattEuropean Org Astron Res Southern Hemisphere, Karl Schwarzschild Str 2, D-85748 Garching, Germany (author)
  • Marquart, Thomas,1978-Uppsala universitet,Observationell astrofysik(Swepub:uu)thmar499 (author)
  • Origlia, LiviaOsservatorio Bologna, INAF, Via Ranzani 1, I-40127 Bologna, Italy (author)
  • Pasquini, LucaEuropean Org Astron Res Southern Hemisphere, Karl Schwarzschild Str 2, D-85748 Garching, Germany (author)
  • Paufique, JeromeEuropean Org Astron Res Southern Hemisphere, Karl Schwarzschild Str 2, D-85748 Garching, Germany (author)
  • Pistunov, NikolaiOsservatorio Arcetri, INAF, Largo E Fermi 5, I-50125 Florence, Italy (author)
  • Reiners, AnsgarUniv Gottingen, Inst Astron, Friedrich Hund Pl 1, D-37077 Gottingen, Germany (author)
  • Smette, AlainEuropean Org Astron Res Southern Hemisphere, Karl Schwarzschild Str 2, D-85748 Garching, Germany (author)
  • Smoker, JonathanEuropean Org Astron Res Southern Hemisphere, Karl Schwarzschild Str 2, D-85748 Garching, Germany (author)
  • Seemann, UlfUniv Gottingen, Inst Astron, Friedrich Hund Pl 1, D-37077 Gottingen, Germany (author)
  • Stempels, EricOsservatorio Arcetri, INAF, Largo E Fermi 5, I-50125 Florence, Italy (author)
  • Valenti, ElenaEuropean Org Astron Res Southern Hemisphere, Karl Schwarzschild Str 2, D-85748 Garching, Germany (author)
  • European Org Astron Res Southern Hemisphere, Karl Schwarzschild Str 2, D-85748 Garching, GermanyOsservatorio Arcetri, INAF, Largo E Fermi 5, I-50125 Florence, Italy (creator_code:org_t)

Related titles

  • In:OPTICAL AND INFRARED INTERFEROMETRY AND IMAGING VI: SPIE-INT SOC OPTICAL ENGINEERING9781510619562

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