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||<:>Infra||<:>--||<:>[[Interface/Transport|Transport]], [[Interface/Layout| Layout]], [[Interface/Compressor|Compressor]], [[Interface/Crane|Crane]], [[Interface/Cleanliness|Cleanliness]], [[Interface/SASdim|SAS dimension]]||<:>Not in particular||<:>[[Interface/laserroom|Laser room]], [[LCGT/subgroup/AOS/OptLev1|Oplev pylon]], [[LCGT/subgroup/AOS/StrayLight1|Baffles]], [[Interface/Target|Target]], [[Interface/Viewport|Viewport]], [[Interface/Innersurface|Inner surface]], [[Interface/Layout|Layout]]||<:>[[Interface/Network|Network]], [[Interface/EnvMon|Environmental monitors]], [[Interface/Benchmark|Benchmark]]|| ||<:>Infra||<:>--||<:>[[Interface/Transport|Transport]], [[Interface/Layout| Layout]], [[Interface/Compressor|Compressor]], [[Interface/Crane|Crane]], [[Interface/Cleanliness|Cleanliness]], [[Interface/SASdim|SAS dimension]]||<:>Not in particular||<:>[[Interface/laserroom|Laser room]], [[LCGT/subgroup/AOS/OptLev1|Oplev pylon]], [[LCGT/subgroup/AOS/StrayLight1|Baffles]], [[Interface/Target|Target]], [[LCGT/subgroup/AOS/Viewport1|Viewport]], [[Interface/Innersurface|Inner surface]], [[Interface/Layout|Layout]]||<:>[[Interface/Network|Network]], [[Interface/EnvMon|Environmental monitors]], [[Interface/Benchmark|Benchmark]]||
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||<:>IFO||<:>[[Interface/laserroom|Laser room]], [[LCGT/subgroup/AOS/OptLev1|Oplev pylon]], [[LCGT/subgroup/AOS/StrayLight1|Baffles]], [[Interface/Target|Target]], [[Interface/Viewport|Viewport]], [[Interface/Innersurface|Inner surface]], [[Interface/Layout|Layout]]||<:>[[Interface/Cryobaffle|Cryo-baffle]], [[LCGT/subgroup/AOS/Viewport1|Viewport]], [[LCGT/subgroup/AOS/OptLev1|Oplev]], [[Interface/Layout|Layout]], [[Interface/Movablerange|Movable range]], [[Interface/DispNoise|Disp noise]], [[Interface/LocalSensors|Local sensors]], [[Interface/Actuator|Actuator resp]]||<:>[[Interface/Wedges|Wedges]], [[Interface/OptLoss|Opt loss]], [[Interface/AR|AR refl]], [[Interface/Green|Green refl]], [[Interface/Surface|Surface property]]||<:>--||<:>[[LCGT/Meeting/Instrument|Interlock]], [[Interface/DetectorDiagnostics|Diagnosis]], [[Interface/Channels|Channels]], [[Interface/Monitors|Online monitors]], [[Interface/Circuits|Front-end circuits]], [[Interface/CableConnector|Connectors]], [[Interface/IFOctrlOthers|Others]]|| ||<:>IFO||<:>[[Interface/laserroom|Laser room]], [[LCGT/subgroup/AOS/OptLev1|Oplev pylon]], [[LCGT/subgroup/AOS/StrayLight1|Baffles]], [[Interface/Target|Target]], [[LCGT/subgroup/AOS/Viewport1|Viewport]], [[Interface/Innersurface|Inner surface]], [[Interface/Layout|Layout]]||<:>[[Interface/Cryobaffle|Cryo-baffle]], [[LCGT/subgroup/AOS/Viewport1|Viewport]], [[LCGT/subgroup/AOS/OptLev1|Oplev]], [[Interface/Layout|Layout]], [[Interface/Movablerange|Movable range]], [[Interface/DispNoise|Disp noise]], [[Interface/LocalSensors|Local sensors]], [[Interface/Actuator|Actuator resp]]||<:>[[Interface/Wedges|Wedges]], [[Interface/OptLoss|Opt loss]], [[Interface/AR|AR refl]], [[Interface/Green|Green refl]], [[Interface/Surface|Surface property]]||<:>--||<:>[[LCGT/Meeting/Instrument|Interlock]], [[Interface/DetectorDiagnostics|Diagnosis]], [[Interface/Channels|Channels]], [[Interface/Monitors|Online monitors]], [[Interface/Circuits|Front-end circuits]], [[Interface/CableConnector|Connectors]], [[Interface/IFOctrlOthers|Others]]||

KAGRA Interface Control


Contents

1. Scope of each subsystem

2. Table of the interface items between subsystems

3. Working groups for important interface issues

4. Parameter list

5. Requirements and tolerance

6. Duty factor

7. Reference


1. Scope of each subsystem

  • Tunnel (TUN/TU): Tunnel design, Underground lab area, Access tunnel, and Safety

  • Facility (FCL/FA): TBD

  • Vacuum (VAC/VA): Two beam tubes, Chambers, Baffles, Beam targets, Layout, and Pumps

  • Cryogenic (CRY/CR): Cryostat, Shield, Cryo duct, Cryo-cooler; Cryo-suspension, and Heat link

  • Vibration Isolation (VIS/VI): Four Type-A systems, Seven Type-B systems, and Several Type-C systems

  • Mirror (MIR/MI): 23kg Sapphire mirrors, Silica BS, Small Silica mirrors for PRC, SRC, MC, OMC

  • Laser (LAS/LA): 180W laser, 10-50W laser for iKAGRA, Laser control system, and Optics for lasers

  • Main Interferometer (MIF/IF): MIF design (length, RoC, layout), LSC, ASC, Lock acquisition, and Commissioning

  • Input/Output Optics (IOO/IO): Input optics between laser and PRM, and Output optics including OMMT and OMC

  • Auxiliary Optics (AOS/AO): All the optical systems that are not included in MIF or IOO

  • Analog Electronics (AEL/EL): TBD

  • Digital System (DGS/DG): Real-time control, Data acquisition, IFO tuning, Automatic operation, and Information collection

  • Data Analysis (DAS/DA): Management of observation data

  • Geophysics Interferometer (GIF/GI): Baseline interferometer and Arrangement of sensors and benchmarks

A list of allocated items to each subsystem is here.

2. Table of the interface items between subsystems

Infra
(TUN/FCL/VAC)

Susp
(VIS/CRY)

Optics
(MIR)

IFO
(MIF/IOO/AOS/LAS)

Control
(AEL/DGS/GIF/DC)

Infra

--

Transport, Layout, Compressor, Crane, Cleanliness, SAS dimension

Not in particular

Laser room, Oplev pylon, Baffles, Target, Viewport, Inner surface, Layout

Network, Environmental monitors, Benchmark

Susp

Transport, Layout, Compressor, Crane, Cleanliness, SAS dimension

--

Scattering, Absorption

Cryo-baffle, Viewport, Oplev, Layout, Movable range, Disp noise, Local sensors, Actuator resp

Thermometer and Barometer, OSEM, VIS ctrl

Opt

Not in particular

Scattering, Absorption

--

Wedges, Opt loss, AR refl, Green refl, Surface property

Not in particular

IFO

Laser room, Oplev pylon, Baffles, Target, Viewport, Inner surface, Layout

Cryo-baffle, Viewport, Oplev, Layout, Movable range, Disp noise, Local sensors, Actuator resp

Wedges, Opt loss, AR refl, Green refl, Surface property

--

Interlock, Diagnosis, Channels, Online monitors, Front-end circuits, Connectors, Others

Ctrl

Network, Environmental monitors, Benchmark

Thermometer and Barometer, OSEM, VIS ctrl

Not in particular

Interlock, Diagnosis, Channels, Online monitors, Front-end circuits, Connectors, Others

--

An interface item table with each subsystem is here.

3. Working groups for important interface issues

4. Parameter list

  • Parameter list is here.

  • Glossary is here.

5. Requirements and tolerance

  • Requirements are given in the parameter list. Each parameter must be not so far from the required value as to deteriorate the sensitivity by less than 1%.

  • Tolerance is given for some of the parameters by calculating the robustness of the sensitivity. See here.

6. Duty factor

  • The target duty factor of KAGRA is 80%. Breakdown of the time loss is shown here.

7. Reference

KAGRA/Interface (last edited 2013-06-30 03:14:03 by KentaroSomiya)