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Commissioning Procedure for bKAGRA Phase 1

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Presentation on theme: "Commissioning Procedure for bKAGRA Phase 1"— Presentation transcript:

1 Commissioning Procedure for bKAGRA Phase 1
JGW-T February 28, 2019 Commissioning Procedure for bKAGRA Phase 1 Yuta Michimura Department of Physics, University of Tokyo see, also, JGW-T for interferometer design and commissioning schedule

2 Vacuum Layout Legend chamber duct bellows gate valve optical table
TRY Vacuum Layout EYT GVbrty φ100 Legend chamber duct bellows gate valve optical table EYC IFI EYA GVetmy φ100 GVitmy φ100 IYA POP IYC GVbsy φ150 IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP GVbsx φ150 GVitmx φ100 GVetmx φ100 GVbrtx φ100 SR2 POS SR3 AS SRM

3 8.31 Expected Situation PSL & IMC ready, beam reached PRM (by 8.31)
TRY Expected Situation EYT PSL & IMC ready, beam reached PRM (by 8.31) BS (by 4.13) and PRs (by 7.6) ready SR2 also ready (by 7.31) EYC EYT BRT installed ( ) EYA Yarm evacuated IYA PR3-2 not connected GV closed IYC IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS Xarm evacuated bellows around BS not connected SR3 bellows between SR2 and SR3 not connected AS SRM SR3 installation ( )

4 TRY Connect PR3-2 Duct EYT connect PR3-2 duct to start initial alignment connect it after the start of ETMY CRYp installation EYC ETMY CRYp installation starts ( ) EYA IYA connect PR3-2 duct EXT BRT installation starts ( ) IYC IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS SR3 AS SRM SR3 installation ( )

5 Alignment from IMMT to PR3
TRY Alignment from IMMT to PR3 EYT beam spot on PR3 has to be off the center by -5 mm in Y, since there’s no ITM wedge EYC ETMY CRYp installation ( ) EYA IYA steer IMMT2 to center the beam on PRM and PR2 EXT BRT installation ( ) IYC IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS steer PR2 to -5 mm off in Y from the center of PR3 SR3 AS SRM SR3 installation ( )

6 Alignment from PR3 to Xend
TRY Alignment from PR3 to Xend EYT need to calculate the beam position on GV windows EYC ETMY CRYp installation ( ) EYA Thorlabs PDA100A (DC PD) IYA ?? mm of the center of GVitmx window EXT BRT installation ( ) IYC IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS steer PR3 to center the beam on BS and reach EXA Thorlabs PDA100A (DC PD) SR3 AS SRM SR3 installation ( )

7 Alignment from BS to Yend
TRY Alignment from BS to Yend EYT need to calculate the beam position on GV windows EYC ETMY CRYp installation ( ) EYA Thorlabs PDA100A (DC PD) IYA ?? mm of the center of GVitmy window EXT BRT installation ( ) IYC IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS +5.6 mm off the center in Y of EXT BRT (although the beam reach EXT, BRT is not ready yet at this point) SR3 steer BS to reach EYA AS SRM SR3 installation ( )

8 TRY Beam Collimation EYT measure the beam profile at PR3, PR2 and IXA (or IYA) adjust PR2-PR3 lengths if beam looks bad (we won’t try PRMI at first, so we don’t have to move PR2/3 if the beam is not terrible) EYC ETMY CRYp installation ( ) EYA block so that beam don’t reach EYC IYA EXT BRT installation ( ) IYC IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS block so that beam don’t reach EXT beam profiling beam profiling (adjust PR2-3 length) SR3 AS SRM SR3 installation ( )

9 TRY Align ETMY EYT align ETMY right after ETMY CRYp installation completion also align TMSY EYC ETMY CRYp installation done align ETMY so that the beam reach REFL EYA align TMSY BRT in-vac (ETMY transmission 5-10ppm; maybe too dim to align BRT; use green??) IYA EXT BRT installation ( ) IYC IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS block so that beam don’t reach EXT Thorlabs PDA100A (DC PD) SR3 AS block so that beam don’t reach SR3 SRM installation starts ( ) SRM SR3 installation ( )

10 11.8-11.14 Align Aux Optics align REFL, POP, TRY
EYT align REFL, POP, TRY EYC align TRY table optics (maybe too dim) EYA IYA align POP in-vac optics EXT BRT installation ( ) IYC IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS block so that beam don’t reach EXT align REFL table optics SR3 AS block so that beam don’t reach SR3 SRM installation ( ) SRM SR3 installation ( )

11 Prepare for EY Evacuation
TRY Prepare for EY Evacuation EYT preparation works before evacuation EYC prepare for EY evacuation EYA IYA EXT BRT installation ( ) IYC IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS block so that beam don’t reach EXT align POP table optics SR3 AS block so that beam don’t reach SR3 SRM installation ( ) SRM SR3 installation ( )

12 TRY EY Evacuation EYT monitor beam at REFL, POP, TRY during evacuation also roughly align TMSX BRT and TRX optics (alignment without ETMX; +5.6 mm off the center in Y at EXT) EYC evacuate EYA+EYC EYA IYA EXT BRT installation done IYC IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS roughly align TMSX BRT in-vac ( ) align TRX table optics ( ) SR3 AS block so that beam don’t reach SR3 SRM installation ( ) SRM SR3 installation ( )

13 12.8 TRY EY Cooling Starts EYT monitor beam at REFL, POP, TRY, TRX during cool down EYC cool down ETMY EYA keep GVetmy closed (we can open this if we have spare time) IYA IYC IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS SR3 AS block so that beam don’t reach SR3 SRM installation ( ) SRM SR3 installation ( )

14 12.20-26 Alignment from BS to AS
TRY Alignment from BS to AS EYT align SR3 to center the beam on SR3 (CHECK: how much offset?) steer SR3 to center the beam on SR2 measure beam profile at SR2 and SR3 AS for Phase 1 is a reflected beam from SR2, extracted at SR3 chamber EYC cool down ETMY EYA IYA IYC IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS SR3, SR2 alignment beam profiling SR3 AS SRM installation ( ) SRM SR3 installation done

15 TRY ETMX Installation EYT during ETMX CRYp installation, initial alignment team have spare time align AS we can open GVetmy if we have time we can also connect bellows in central area (but we might have to remove again for PR2-3 length adjustment for PRMI mode stabilization, after March) EYC cool down ETMY EYA open GVetmy? IYA connect bellows? ETMX CRYp installation starts ( ) IYC IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS block so that beam don’t reach EXC align AS table optics ( ) SR3 AS align AS in-vac optics ( ) SRM installation ( ) SRM

16 TRY Align ETMX EYT align ETMX right after ETMX CRYp installation completion also, fine align TMSX and TRX EYC cool down ETMY EYA IYA fine alignment of TMSX BRT and TRX table optics (maybe too dim) IYC IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS ETMX CRYp installation done align ETMX so that the beam reach REFL SR3 AS SRM installation ( ) SRM

17 2.12-2.16 Michelson LSC lock Michelson with AS_Q cool down ETMY
TRY Michelson LSC EYT lock Michelson with AS_Q EYC cool down ETMY EYA IYA fine alignment of TMSX BRT and TRX table optics (maybe too dim) IYC PRM misaligned IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS lock Michelson SR3 AS SRM installation ( ) SRM

18 Prepare for EX Evacuation
TRY Prepare for EX Evacuation EYT preparation works before vacuation EYC cool down ETMY EYA IYA fine alignment of TMSX BRT and TRX table optics (maybe too dim) IYC IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS prepare for EX evacuation SR3 AS SRM installation ( ) SRM

19 TRY EX Evacuation EYT monitor beam at REFL, POP, TRY, TRX, AS during evacuation EYC cool down ETMY EYA IYA fine alignment of TMSX BRT and TRX table optics (maybe too dim) IYC IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS evacuate EXA+EXC SR3 AS keep GVetmx closed (we can open this if we have spare time) SRM installation done (3.2) SRM

20 TRY EX Cooling, Test Run EYT monitor beam at REFL, POP, TRY, TRX, AS during cool down keep Michelson locked during cool down until → Cryogenic Michelson Test Run (bKAGRA Phase 1 complete) EYC cool down ETMY EYA IYA IYC IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS cool down ETMX SR3 AS keep Michelson locked SRM

21 Apr-Jun PRMI PR2-PR3 length adjust PRMI alignment, locking
TRY PRMI EYT PR2-PR3 length adjust PRMI alignment, locking connect remaining bellows/ducts evacuate central area open GVs EYC cool down ETMY EYA PR2-PR3 length adjust (Michelson re-alignment needed) IYA central area evacuation PRM alignment to make PRC IYC IFI IMM PRM PR3 PR2 BS IXC IXA EXA EXC EXT TRX REFL POP SR2 POS cool down ETMX SR3 lock PRMI with ASC AS SRM

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