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1、ET:EinsteinTelescopeMichelePunturoINFNPerugiaOnbehalfoftheETdesignstudyteamILIASGeneralmeeting,JacaFeb20081EvolutionofthecurrentGWdetectors•CurrentGravitationalWaveinterferometricdetectorshaveawelldefinedevolutionlineinthenext5-7years–LIGOjustcompleteditsS5scientificrun–Virgocompl
2、etedinOctober07itsfirstlongscientificruninparallelwithLIGO•Boththedetectorsareinupgrade/commissioningmodetoimplementtheir1.5generationupgradestep(Virgo+,enhancedLIGO)–GEOiscovering(“astrowatch”mode)thedowntimeofLIGOandVirgoincollaborationwiththeresonantbardetectors•…seeG.LosurdoTa
3、lkILIASGeneralmeeting,JacaFeb200821stgenerationGWdetectorssensitivities)-1810-1/21stgenerationdetectorsPulsarsh(HzLIGO-19hmax–1yrintegration10Credit:P.RapagnaniVirgo-2010ResonantantennasGEOBH-BHMergerOscillations@100Mpc-2110CoreCollapseQNMfromBHCollisions,@10MpcQNMfromBHCollisions
4、,100-10Msun,150Mpc1000-100Msun,z=1BH-BHInspiral,100Mpc-22NS-NSMerger10OscillationsBH-BHInspiral,@100Mpcz=0.4-6-23NS,ε=10,10kpc10NS-NSInspiral,300Mpc-24104ILIASGeneralmeeting,JacaFeb20083ESO–May2,2006110100G.Losurdo–INFNFirenze1000310Hz“1.5generation”sensitivitiesMonolithicFSsuspen
5、sioLaseramplifiernsHigherfinesse,lowermirrorTNILIASGeneralmeeting,JacaFeb20084Advanceddetectors•Enhanceddetectorsareasteptowardtherealizationofthe2ndgenerationdetectors(“advanced”)–AlsoGEOwillparticipatetothenetworkofenhanceddetectorswithanupgradedversion,“specialized”inthehighfre
6、quencyregimethanks(mainly)tothesignalrecyclingtechnology•GEOHF–Theyarebasedon“small”changesofthecurrentdetectorswithavailabletechnologiesthatanticipatethenextstep•Advanceddetectorswillbeonlineinthe>2013timeslot–Theywillbebasedonknowntechnologiescurrentlyunderpreliminaryengineering
7、phase•Highpowerlaser(~200W)andcompliantoptics•Lowerthermalnoisemirrors(substratesandcoatings)•Lowerthermalnoisesuspensions(FSmonolithicsuspensions)•Betterseismicisolation–ActivefilteringinLIGO–FocusedimprovementsoftheVirgoSuper-Attenuator•SignalrecyclingILIASGeneralmeeting,JacaFeb
8、20085Credit:DetectionRichardPowel
