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 * [[Interface/Cable|Cabling and connectors]] (VIS,CRY,AEL, etc.)  * [[Interface/CableConnector|Cable connectors]] (VIS,CRY,AEL, etc.)

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

TUN

FCL

VAC

CRY

VIS

MIR

LAS

MIF

IOO

AOS

AEL

DGS

DAS

GIF

TUN

--

o

o

o

o

o

o

o

o

o

o

o

o

o

FCL

o

--

o

o

o

o

o

o

o

o

o

o

o

o

VAC

o

o

--

o

o

o

o

o

o

o

o

o

o

o

CRY

o

o

o

--

o

o

o

o

o

o

o

o

o

o

VIS

o

o

o

o

--

o

o

o

o

o

o

o

o

o

MIR

o

o

o

o

o

--

o

o

o

o

o

o

o

o

LAS

o

o

o

o

o

o

--

o

o

o

o

o

o

o

MIF

o

o

o

o

o

o

o

--

o

o

o

o

o

o

IOO

o

o

o

o

o

o

o

o

--

o

o

o

o

o

AOS

o

o

o

o

o

o

o

o

o

--

o

o

o

o

AEL

o

o

o

o

o

o

o

o

o

o

--

o

o

o

DGS

o

o

o

o

o

o

o

o

o

o

o

--

o

o

DAS

o

o

o

o

o

o

o

o

o

o

o

o

--

o

GIF

o

o

o

o

o

o

o

o

o

o

o

o

o

--

An interface item table at a glance 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)