English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
 Local TagsRelease HistoryDetailsSummary
  The MICADO Atmospheric Dispersion Corrector: Optomechanical design, expected performance and calibration techniques

van den Born, J. A., Romp, R., Janssen, A. W., Navarro, R., Jellema, W., Tolstoy, E., et al. (2022). The MICADO Atmospheric Dispersion Corrector: Optomechanical design, expected performance and calibration techniques. In Ground-Based and Airborne Instrumentation for Astronomy IX. USA: SPIE-INT SOC OPTICAL ENGINEERING. doi:10.1117/12.2628877.

Item is

 

show all hide all

Basic

show hide
Item Permalink: https://hdl.handle.net/21.11116/0000-000C-9DEF-7 Version Permalink: https://hdl.handle.net/21.11116/0000-000C-9DF0-4
Genre: Conference Paper

Files

show Files
hide Files
:
The MICADO Atmospheric Dispersion Corrector Optomechanical design, expected performance and calibration techniques.pdf (Any fulltext), 5MB
 
File Permalink:
-
Name:
The MICADO Atmospheric Dispersion Corrector Optomechanical design, expected performance and calibration techniques.pdf
Description:
-
OA-Status:
Visibility:
Private
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
van den Born, J. A., Author
Romp, R., Author
Janssen, A. W., Author
Navarro, R., Author
Jellema, W., Author
Tolstoy, E., Author
Jayawardhana, B., Author
Hartl, M.1, Author           
Affiliations:
1Infrared and Submillimeter Astronomy, MPI for Extraterrestrial Physics, Max Planck Society, ou_159889              

Content

show
hide
Free keywords: -
 Abstract: The differential refraction of light passing through the atmosphere can have a severe impact on image quality if no atmospheric dispersion corrector (ADC) is used. For the Extremely Large Telescope (ELT) this holds true up into the infrared. MICADO, the near-infrared imaging camera for the ELT, will employ a cryogenic ADC consisting of two counter-rotating Amici prisms with diameters of 125 mm. The mechanism will reduce the atmospheric dispersion to below 2.5 milli arcseconds (mas), with a set goal of 1 mas. In this report, we provide an overview of the current status of the ADC in development for MICADO. We summarise the optomechanical design and discuss how the cryogenic environment impacts the performance. We will also discuss our plan to use a diffraction mask in the cold pupil to calibrate and validate the performance, once the instrument is fully integrated.

Details

show
hide
Language(s): eng - English
 Dates: 2022-08-29
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1117/12.2628877
 Degree: -

Event

show
hide
Title: Conference on Ground-Based and Airborne Instrumentation for Astronomy IX
Place of Event: Montreal, CANADA
Start-/End Date: 2022-07-17 - 2022-07-22

Legal Case

show

Project information

show

Source 1

show
hide
Title: Ground-Based and Airborne Instrumentation for Astronomy IX
Source Genre: Proceedings
 Creator(s):
Affiliations:
Publ. Info: USA : SPIE-INT SOC OPTICAL ENGINEERING
Pages: - Volume / Issue: 12184 Sequence Number: 121842W Start / End Page: - Identifier: ISSN: 0277-786X