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Talk overview

Prospects and plans : LIGO interferometers Michael Landry LIGO Hanford Observatory LSC meeting, MIT Nov 4-5, 2006. Talk overview . How are we doing in S5 Near-term commissioning efforts Schedules Longer term : Enhanced LIGO Still longer : Advanced LIGO. LHO. LLO. LLO seismic.

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Talk overview

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  1. Prospects and plans : LIGO interferometersMichael LandryLIGO Hanford ObservatoryLSC meeting, MITNov 4-5, 2006

  2. Talk overview • How are we doing in S5 • Near-term commissioning efforts • Schedules • Longer term : Enhanced LIGO • Still longer : Advanced LIGO

  3. LHO

  4. LLO

  5. LLO seismic

  6. Sometimes we are lucky • Near disaster: L1 ITMy got stuck- • Vented and fixed it: Noise got better!!! Earth quake stop before after Mike Zucker Aug LSC

  7. …sometimes we don’t • Magnitude 4.5, E of Mt Rainier, WA • Saturday October 7, 2006 at 07:48:26.57 PM (PDT) • Depth : 4km • Both H1 and H2 down ~ 1Mpc after quake • Several days later, H2 drops to a paltry ~ 2Mpc • burped H2 ETMy to a few Torr, plus shake • burped vertices of both H1 and H2 • H1 restored (with tweaks) to 15Mpc • H2 continues however to ~ once/week, drop to 1Mpc • Limp like this? Vent?

  8. Recent BNS range performance

  9. LLO/LHO coincidence

  10. Recent LHO/LLO coincident duty cycle

  11. Near-term commissioning • LHO • H1 dark port table floating • Line mitigation • PEPI – mitigate stack modes at 1.2Hz, 2.2Hz, and possibly 6Hz. May help limit upconversion into the gw band • H1 power up • LLO • Low frequency noise suppression with HEPI tidal? • WFS tuning?

  12. When will it end

  13. S5 H1 downtime Betsy Bland LHO

  14. S5 L1 downtime Dan Hoak LLO

  15. Science Education Center • LLO science education center construction completed

  16. Before Advanced LIGO NOW Other interferometers in operation (GEO, Virgo) 4 yrs 4Q ‘06 4Q ‘07 4Q ‘08 4Q ‘09 4Q ‘10 4Q ‘05 Adv LIGO S6 S5 ~2 years • Between now and AdvLIGO, there is some time to improve… • Sensitivity enhancement without drastic hardware changes. • Factor of ~2 in noise, factor of ~10 in event rate. • Maximize likelihood of a detection before Advanced LIGO. Rana Adhikari (recent NSF review)

  17. Advanced LIGO in contextBlack: Operations (R&RA); Blue Project (MREFC) • Advanced LIGO R&D well advanced, heading toward Final Design phases for each subsystem • Initial LIGO S5 run to reach goal of one year of integrated data in Fall 2007 • Advanced LIGO funding at start of FY2008; fabrication, assembly, and stand-alone testing of detector components • Advanced LIGO R&D ramps down end FY2008 • Initial LIGO Enhancements to be installed, commissioned progressively at Livingston, Hanford • Science runs with Enhancements starting in early 2009, running to early 2011 • Advanced LIGO starts decommissioning initial LIGO instruments in early 2011, installing new detector components from stockpile • First Advanced LIGO interferometer accepted in early 2013, second and third in mid-2014. Project completes! • Commissioning of instruments, engineering runs starting in 2014 David Shoemaker (recent NSF review)

  18. Summary 1/2 way there!

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