Abstract

The Far Infrared and Submillimeter Telescope (FIRST) is planned by ESA to be the successor of the successful Infrared Space Observatory (ISO) in the field of astronomic observations in the infrared and submillimeter wavelength range. At Dornier Satellitensysteme (DSS) the design of the FIRST Payload Module (PLM) has been established in several studies under ESTEC-contract, reflecting on the experience gained from ISO and former space-cryostat projects. This paper describes the actual design of the FIRST PLM which is mainly built up by the HeII-cryostat. This HeII-cryostat contains a 2560 l tank filled with superfluid Helium and three scientific instruments mounted on an Optical Bench which is fixed upon the HeII-tank. It is shown that all requirements are met and the FIRST-PLM will provide an excellent environment for the scientific instruments.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.