DAG 4m telescope: assembly, integration and testing

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dc.authorid0000-0003-1894-7190
dc.authorid0000-0002-2290-5228
dc.contributor.authorPirnay, Olivieren_US
dc.contributor.authorLousberg, Grégory P.en_US
dc.contributor.authorGabriel, Ericen_US
dc.contributor.authorMarchiori, Gianpietroen_US
dc.contributor.authorBusatta, Andreaen_US
dc.contributor.authorYeşilyaprak, Cahiten_US
dc.contributor.authorKeskin, Onuren_US
dc.date.accessioned2019-03-17T11:11:51Z
dc.date.available2019-03-17T11:11:51Z
dc.date.issued2018-07-06
dc.departmentIşık Üniversitesi, Mühendislik Fakültesi, Makine Mühendisliği Bölümüen_US
dc.departmentIşık University, Faculty of Engineering, Department of Mechanical Engineeringen_US
dc.description.abstractAMOS with EIE as a main subcontractor, was awarded a contract in November 2014 for the design, manufacturing and installation of a 4m-class telescope for the Turkish Eastern Anatolia Observatory (DAG) situated at 3170 m above the sea level in Palandöken mountains. The telescope is based on a Ritchey-Chretien configuration with two folded Nasmyth focal planes and a focal length of 56m. Diffraction-limited performances will be reached thanks to the combination of the active optics system and the adaptive optics system that will be implemented on one of the Nasmyth ports. The active optics system aims at controlling the shape of the primary mirror by means of 66 axial force actuators and positioning actively the secondary and tertiary mirrors by means of hexapods. More than 30 years of experience in testing instruments and telescopes, including optical testing, alignment, metrology, mechanical static and dynamic measurements, system identification, etc. allow to implement an adequate verification strategy combining component level verifications with factory and site test in the most efficient and reliable manner. As a main contractor, AMOS is in charge of the overall project management, the system engineering, the optical design and the active optics development. As a main sub-contractor and partner of AMOS, EIE is in charge of the development of the mount. The factory test therefore takes place in EIE premises. In this paper is shortly presented the overall design of the telescope with a review of the specification, the optical design and a description of the major sub-systems, including the optics. The assembly, integration et test plan is outlined. The assembly sequence and the tests of the active optics and the mount are discussed. Finally, the site integration and tests are explained. The process to assess the image quality of the telescope and the verification instrument developed for this purpose by AMOS are presented.en_US
dc.description.versionPublisher's Versionen_US
dc.identifier.citationPirnay, O., Lousberg, G. P., Gabriel, E., Busatta, A., Yeşilyaprak, C. & Keskin, O. (2018). DAG 4m telescope: assembly, integration and testing. Paper presented at the Proceedings of SPIE - The International Society for Optical Engineering, 10700, 1-14. doi:10.1117/12.2313476en_US
dc.identifier.doi10.1117/12.2313476
dc.identifier.endpage14
dc.identifier.isbn9781510619531
dc.identifier.issn0277-786X
dc.identifier.issn1996-756X
dc.identifier.scopus2-s2.0-85051241417
dc.identifier.scopusqualityN/A
dc.identifier.startpage1
dc.identifier.urihttps://hdl.handle.net/11729/1464
dc.identifier.urihttp://dx.doi.org/10.1117/12.2313476
dc.identifier.volume10700
dc.identifier.wosWOS:000450858000054
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakConference Proceedings Citation Index – Science (CPCI-S)en_US
dc.institutionauthorKeskin, Onuren_US
dc.institutionauthorid0000-0002-2290-5228
dc.language.isoenen_US
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US
dc.publisherSPIE-Int Soc Optical Engineeringen_US
dc.relation.ispartofProceedings of SPIE - The International Society for Optical Engineeringen_US
dc.relation.ispartofseriesProceedings of SPIEen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectActive opticsen_US
dc.subjectAIVen_US
dc.subjectATASAMen_US
dc.subjectDAGen_US
dc.subjectErzurumen_US
dc.subjectTelescopeen_US
dc.subjectTesten_US
dc.subjectVerification Instrumenten_US
dc.subjectAirborne telescopesen_US
dc.subjectContractorsen_US
dc.subjectInstrument testingen_US
dc.subjectIntegrationen_US
dc.subjectMirrorsen_US
dc.subjectOptical designen_US
dc.subjectProject managementen_US
dc.subjectAdaptive optics systemsen_US
dc.titleDAG 4m telescope: assembly, integration and testingen_US
dc.typeConference Objecten_US
dspace.entity.typePublication

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