Dhijitari kamera Optics yeGuru Synoptic Survey Telescope siya LLNL yakagadzirira kusangana.
Chibvumirano chikuru: iyo lens yakakura kwazvo kune yakakura kwazvo kamera kamera.
Iyo lenzi inoyera 1.57 metres kuyambuka uye inofungidzirwa kuti ndiyo hombe yepamusoro-inoshanda Optical lens yakambogadzirwa yasvika SLAC Yenyika Accelerator Laborator, nhanho huru inoenda kwainopedzisira yaenda mune kamera yedhijitari inoshandiswa neRakakura Synoptic Survey Telescope (LSST).
Iyo yakazara kamera lens gungano, kusanganisira iyo hombe L1 lens pamwe neayo mudiki shamwari L2 lens inoyera 1.2 metres muhupamhi, yakagadzirirwa naLawrence Livermore National Laboratory (LLNL) uye yakavakwa anopfuura makore mashanu na Bhora Aerospace uye subcontractor Arizona Optical Maitiro. Lens yechitatu, L3, 72 masendimita pakureba, ichaendeswawo kuSLAC mukati memwedzi.
SLAC iri kugadzirisa dhizaini yese, kunyepedzera uye yekupedzisira musangano weLSST's $ 168 mamirioni, 3,200-megapixel kamera kamera, iyo inonzi ikozvino 90 muzana yakakwana uye inofanira kupedzwa kutanga kwa2021.
"Kubudirira kwekugadzirwa kweichi chakasarudzika musangano wechipupuriro humbowo kune hunyanzvi hweLLNL hunotungamira pasirese mumagetsi makuru, akavakirwa pamakumi emakore ezviitiko mukuvakwa kwenzvimbo dzenyika dzakakura uye dzine simba kwazvo," akadaro Scot Olivier, uyo anga ari inobatanidzwa muchirongwa cheLawrence Livermore cheLSS kweanopfuura makore gumi.
Sekureva kweLSST Corporation, iyo kamera yedhijitari muLSST ndiyo yakakura kwazvo kamera kamera yambovakwa. Chimiro chekupedzisira chinoyera 1.65 x 3 metres uye chinorema 2,800 kg. Iyo yakakura-kuzarura, yakafara-munda opikicha mufananidzo unokwanisa kuona mwenje kubva padyo ultraviolet kusvika padyo infrared.
Kana yaunganidzwa, iyo L1 uye L2 lenzi ichagara mune Optics chimiro kumberi kwemuviri wekhamera; L3 ichaumba hwindo rekupinda mukamera yekristostat, iine iyo yakatarisa ndege uye zvemagetsi zvinobatana.
Zvakanyatso tarisa zvinodiwa
Iyo CCD digital kamera icharekodha mifananidzo inoonekwa neteresikopu's main optical system, pachayo a inoverengeka matatu-girazi dhizainikubatanidza 8.4-mita yepuraimari, 3.4-mita yechipiri uye mashanu-mita yemadhigirii epamusoro. Chiedza chekutanga kuLSST chinotarisirwa mu2020, iine mashandiro akazara achitanga mu2022.
Kugadzira kamera yedhijitari inokwanisa kusangana nezvinangwa zvekufungidzira zveLSS zvakatungamira LLNL kugadzirisa matambudziko akati wandei, sekureva kwechikwata cheprojekti. Yekupedzisira detector fomati inoshandisa mosaic ye189 16-megapixel silicon michina yakarongedzwa pa 21 "rafts" kupa iyo yakazara 3.2 gigapixels resolution.
Iyo kamera inotora kuburitswa kwemasekondi gumi neshanu pamasekondi makumi maviri, neteresikopu ichidzokororwa uye kugadzirisa mukati memasekonzi mashanu, ichida chimiro chipfupi uye chakaomarara. Izvi zvinoreva zvakare diki-f-nhamba, pamwe nekunyatso tarisa kamera.
Zvinyorwa zveLSS zvinoratidza kuti kufumurwa kwemasekondi gumi neshanu chibvumirano chekubvumidza kuona nzvimbo dzakapfava uye dzinofamba. Kuratidzwa kwenguva yakareba kunodzora pamusoro pekuverengwa kwekamera uye kuiswazve teresikopu, zvichibvumira kufungidzira kwakadzama, asi zvinhu zvinomhanya nekukurumidza uye padyo nepasi zvinofamba zvakanyanya panguva yekuratidzwa. Nzvimbo imwe neimwe iri mudenga inofanirwa kuve nemifananidzo ine mbiri dzakateedzana gumi neshanu dzakateedzana, kuramba cosmic ray inorova maCDD.
"Chero nguva yaunoita chiitiko kekutanga, panenge paine zvinetswa, uye kugadzirwa kweLSST L1 lens yakaratidza kuve isina musiyano," akadaro Justin Wolfe weLLNL. “Uri kushanda nechidimbu chegirazi chakareba kudarika mamita mashanu uye chakakora mainji mana chete. Chero kusabatwa zvakanaka, kuvhunduka kana tsaona kunogona kukonzera kukuvara kune lens. Lens ibasa reumhizha uye tese tinodada nazvo. ”
Post nguva: Oct-31-2019