Prospects and plans : LIGO interferometers Michael Landry LIGO Hanford Observatory LSC meeting, MIT Nov 4-5, 2006.

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Presentation transcript:

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 Landry/LSC Nov 5, 2006

LHO Landry/LSC Nov 5, 2006

LLO Landry/LSC Nov 5, 2006

LLO seismic Landry/LSC Nov 5, 2006

Sometimes we are lucky Earth quake stop before after Near disaster: L1 ITMy got stuck- Vented and fixed it: Noise got better!!! Earth quake stop before after Mike Zucker Aug LSC Landry/LSC Nov 5, 2006

…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? Landry/LSC Nov 5, 2006

Recent BNS range performance Landry/LSC Nov 5, 2006

LLO/LHO coincidence Landry/LSC Nov 5, 2006

Recent LHO/LLO coincident duty cycle Landry/LSC Nov 5, 2006

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? Landry/LSC Nov 5, 2006

When will it end Landry/LSC Nov 5, 2006

S5 H1 downtime Betsy Bland LHO Landry/LSC Nov 5, 2006

S5 L1 downtime Dan Hoak LLO Landry/LSC Nov 5, 2006

Science Education Center LLO science education center construction completed Landry/LSC Nov 5, 2006

Before Advanced LIGO NOW 4 yrs S5 ~2 years S6 Other interferometers in operation (GEO, Virgo) 4 yrs 4Q ‘05 4Q ‘06 4Q ‘07 4Q ‘08 4Q ‘09 4Q ‘10 Adv LIGO S5 ~2 years S6 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) Landry/LSC Nov 5, 2006

Advanced LIGO in context Black: 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) Landry/LSC Nov 5, 2006

Summary 1/2 way there! Landry/LSC Nov 5, 2006