Design of the near infrared camera DIRAC for East Anatolia Observatory

Basit Öğe Kaydı
dc.authorid0000-0002-2290-5228
dc.contributor.authorZhelem, Rossen_US
dc.contributor.authorContent, Roberten_US
dc.contributor.authorChurilov, Vladimiren_US
dc.contributor.authorKripak, Yevgenen_US
dc.contributor.authorWaller, Lewen_US
dc.contributor.authorCase, Scotten_US
dc.contributor.authorMali, Slavkoen_US
dc.contributor.authorMuller, Rolfen_US
dc.contributor.authorGonzalez, Marioen_US
dc.contributor.authorAdams, Daveen_US
dc.contributor.authorBinos, Nicken_US
dc.contributor.authorChin, Timothyen_US
dc.contributor.authorFarrell, Tonyen_US
dc.contributor.authorKlauser, Ursen_US
dc.contributor.authorKondrat, Yuriyen_US
dc.contributor.authorKunwar, Nirmalaen_US
dc.contributor.authorLawrence, Jonen_US
dc.contributor.authorLorente, Nuriaen_US
dc.contributor.authorLuo, Summeren_US
dc.contributor.authorMcDonald, Ericaen_US
dc.contributor.authorMcGregor, Helenen_US
dc.contributor.authorNichani, Vijayen_US
dc.contributor.authorPai, Naveenen_US
dc.contributor.authorVuong, Minhen_US
dc.contributor.authorZahoor, Jahanzeben_US
dc.contributor.authorZheng, Jessicaen_US
dc.contributor.authorNorris, Barnabyen_US
dc.contributor.authorBryant, Juliaen_US
dc.contributor.authorVaccarella, Anninoen_US
dc.contributor.authorHerrald, Nicken_US
dc.contributor.authorGilbert, Jamesen_US
dc.contributor.authorYeşilyaprak, Cahiten_US
dc.contributor.authorGüçsav, Bülenten_US
dc.contributor.authorCoker, Denizen_US
dc.contributor.authorKeskin, Onuren_US
dc.contributor.authorJolissaint, Laurenten_US
dc.date.accessioned2022-11-08T16:17:52Z
dc.date.available2022-11-08T16:17:52Z
dc.date.issued2022
dc.departmentIşık Üniversitesi, Mühendislik ve Doğa Bilimleri Fakültesi, Makine Mühendisliği Bölümüen_US
dc.departmentIşık University, Faculty of Engineering and Natural Sciences, Department of Mechanical Engineeringen_US
dc.departmentIşık Üniversitesi, Optomekatronik Uygulama Ve Araştırma Merkezien_US
dc.description.abstractThe 4m DAG telescope is under construction at East Anatolia Observatory in Turkey. DIRAC, the " DAG InfraRed Adaptive optics Camera", is one of the facility instruments. This paper describes the design of the camera to meet the performance specifications. Adaptive and auxiliary optics relay the telescope F/14 input 1:1 into DIRAC. The camera has an all refractive design for the wavelength range 0.9 - 2.4 micron. Lenses reimage the telescope focal plane 33 x 33 as (9 x 9 mm) on a 1k x 1k focal plane array. With magnification of 2x, the plate scale on the detector is 33 mas/pixel. There are 4 standard filters (Y, J, H, K) and 4 narrowband continuum filters. A 12 position filter wheel allows installation of 2 extra customer filters for specific needs; the filter wheel also deploys a pupil viewer lens. Optical tolerancing is carried out to deliver the required image quality at polychromatic Strehl ratio of 90% with focus compensator. This reveals some challenges in the precision assembly of optics for cryogenic environments. We require cells capable of maintaining precision alignment and keeping lenses stress free. The goal is achieved by a combination of flexures with special bonding epoxy matching closely the CTE of the lens cells and crystalline materials. The camera design is very compact with object to image distance <220 mm and lens diameters <25 mm. A standalone cryostat is LN2 cooled for vibration free operation with the bench mounted adaptive optics module (TROIA) and coronagraph (PLACID) at the Nasmyth focus of the DAG telescope.en_US
dc.identifier.citationZhelem, R., Content, R., Churilov, V., Kripak, Y., Waller, L., Case, S., Mali, S., Muller, R., Gonzalez, M., Adams, D., Binos, N., Chin, T., Farrell, T., Klauser, U., Kondrat, Y., Kunwar, N., Lawrence, J., Lorente, N., Luo, S., McDonald, E., McGregor, H., Nichani, V., Pai, N., Vuong, M., Zahoor, J., Zheng, J., Norris, B., Bryant, J., Vaccarella, A., Herrald, N., Gilbert, J., Yeşilyaprak, C., Güçsav, B., Coker, D., Keskin, O. & Jolissaint, L. (2022). Design of the near infrared camera DIRAC for East Anatolia Observatory. Paper presented at the Ground-Based And Airborne Instrumentation For Astronomy IX, 12184. doi:10.1117/12.2629716en_US
dc.identifier.doi10.1117/12.2629716
dc.identifier.isbn9781510653504
dc.identifier.isbn9781510653498
dc.identifier.issn0277-786X
dc.identifier.issn1996-756X
dc.identifier.scopus2-s2.0-85178515181
dc.identifier.scopusqualityN/A
dc.identifier.urihttps://hdl.handle.net/11729/5123
dc.identifier.urihttp://dx.doi.org/10.1117/12.2629716
dc.identifier.volume12184
dc.identifier.wosWOS:000860684700103
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.publisherSPIEen_US
dc.relation.ispartofGround-Based And Airborne Instrumentation For Astronomy IXen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectInfrareden_US
dc.subjectCameraen_US
dc.subjectDiffraction limiteden_US
dc.subjectCryogenicen_US
dc.subjectWavefront budgeten_US
dc.subjectCryostaten_US
dc.subjectAdaptive opticsen_US
dc.subjectBudget controlen_US
dc.subjectFocusingen_US
dc.subjectObservatoriesen_US
dc.subjectTelescopesen_US
dc.subjectTemperature indicating camerasen_US
dc.subjectWheelsen_US
dc.subjectAnatoliaen_US
dc.subjectFilter wheelen_US
dc.subjectFocal planeen_US
dc.subjectFocal-plane arraysen_US
dc.subjectNear infrared camerasen_US
dc.subjectPerformance specificationsen_US
dc.subjectRefractive designen_US
dc.subjectWavelength rangesen_US
dc.subjectInfrared devicesen_US
dc.titleDesign of the near infrared camera DIRAC for East Anatolia Observatoryen_US
dc.typeConference Objecten_US

Dosyalar

Orijinal paket
Listeleniyor 1 - 1 / 1
Küçük Resim Yok
İsim:
Design_of_the_near_infrared_camera_DIRAC_for_East_Anatolia_Observatory.pdf
Boyut:
665.29 KB
Biçim:
Adobe Portable Document Format
Açıklama:
Publisher's Version
İndir
Lisans paketi
Listeleniyor 1 - 1 / 1
Küçük Resim Yok
İsim:
license.txt
Boyut:
1.44 KB
Biçim:
Item-specific license agreed upon to submission
Açıklama:
İndir

Koleksiyon

Bildiri Koleksiyonu | Makine Mühendisliği Bölümü / Department of Mechanical Engineering
Scopus İndeksli Yayınlar Koleksiyonu
WoS İndeksli Yayınlar Koleksiyonu