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|| '''[[LCGT|PROJECT TOP]]''' ||[[LCGT/subgroup/analysis|GW Analysis]] ||[[LCGT/subgroup/ifo|Interferometer]] ||[[LCGT/subgroup/vacuum|Vacuum & Cryostat]] ||[[LCGT/subgroup/laser|Laser & Optics]] ||[[LCGT/subgroup/vis|Seismic Isolator]] ||[[LCGT/subgroup/infra|Infrastructure]] || ## page was renamed from LCGT/subgroup/vis

= VIS =

'''V'''ibration '''I'''solation '''S'''ystem is the hardware infrastructure for the main optics in the KAGRA interferometer.
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== 防振系 == == Space for VIS-internal use ==
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 リーダー: 高橋竜太郎 (NAOJ) <<BR>> === Quick announcement ===
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 サブリーダー: 内山隆 (ICRR)、三代木伸二 (ICRR) === Frequently used links ===
 * '''VIS meeting''': From 14:00 (JST) on every Friday - [[KAGRA/Subgroups/VIS/MeetingNAOJ|Meeting Page]]

----
== VIS Upgrades ==

[[KAGRA/Subgroups/VIS/Upgrade|Upgrade Page]]

----
== Instruments ==

=== Suspension types ===
[[KAGRA/Subgroups/VIS/TypeA|Type-A]]

[[KAGRA/Subgroups/VIS/TypeB|Type-B]]

[[KAGRA/Subgroups/VIS/TypeBp|Type-Bp]]

[[KAGRA/Subgroups/VIS/Type-C|Type-C]]

[[KAGRA/Subgroups/VIS/Payload|Payload]]

[[KAGRA/Subgroups/VIS/ActuatorDesign|Actuator design summary]]

[[KAGRA/Subgroups/VIS/ChangeLog|Design Change Logs]]

=== Suspended optics ===

The optics in the KAGRA interferometer is often called their acronyms/abbreviations. Please mind also that we call the vacuum chambers or clean booths in a similar manner.

 * Arm cavity
  * ETMX
  * ETMY
  * ITMX
  * ITMY
 * Beam splitter (BS)
 * Signal recycling cavity
  * SRM
  * SR2
  * SR3
 * Power recycling cavity
  * PRM
  * PR2
  * PR3
 * Input optics
  * IMC
  * IMMT1
  * IMMT2
 * Output optics
  * OMMT1
  * OMMT2
  * OSTM
  * OMC
 * Auxiliary optics
  * TMSX
  * TMSY

=== Mechanics ===

==== Tower ====
 * Pre-isolator
  * Inverted Pendulum (IP)
  * Top GAS Filter (TF<<FootNote(This abbreviation should be avoided because it often refers to rather Transfer Function.)>>)
 * Standard GAS Filter (SF)
 * Bottom GAS Filter (BF)
 * Magnetic damper

==== Payload ====
 * Cryogenic payload (CRYp): The bottom 4 stages in Type-A suspension, branch recoil-mass chain
  * Platform (PF)
  * Marionette (MN)
  * Intermediate Mass (IM)
  * Test Mass (TM)
 * Room-temperature payload: The bottom 2 stages in Type-B and Type-Bp suspension, parallel recoil-mass chain
  * Intermediate Mass (IM)
  * Test Mass (TM)
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=== 第1回LCGT防振系作業部会 === ----
== Installation ==
 . [[KAGRA/Subgroups/VIS/IstManual|Installation Procedure]]
 . [[KAGRA/Subgroups/VIS/VISInstWorkInfo|Misc. Installation Work Information]]
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 6月3日(水) 17:00-19:00 天文台輪講室  . [[KAGRA/Subgroups/VIS/iKAGRAbKAGRA|Tasks from iKAGRA to bKAGRA]]
----
== Real Time Model Development ==
 . [[KAGRA/Subgroups/VIS/RealTimeModel|Real-time Model Development]]
----
== Operation ==
 . [[KAGRA/Subgroups/VIS/OpsManual|Operation Manual]]
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 ・[[attachment:LCGT/subgroup/vis/agenda1.pdf|作業班、スケジュール]] ----
== VIS Introductioon ==
 . [[KAGRA/Subgroups/VIS/Introduction|Introduction materials for VIS]]
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 ・[[attachment:LCGT/subgroup/vis/ICDsas.doc|ICD]] [[attachment:ICDsas.pdf|PDF]]
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 ・[[attachment:LCGT/subgroup/vis/LCGT-SAS2.pdf|常温-低温接続部]] ----
== VIS Commissioning ==
 . [[KAGRA/Subgroups/VIS/Type-A/Commissioning|Type-A Commissioning]]
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 ・R&Dについて

----
== Archives ==
 . [[KAGRA/Subgroups/VIS/Photos|Photos]]

----
== Old Weekly EVO Meeting ==
 . This meeting is suspended.

[[KAGRA/Subgroups/VIS/OldVISMeetings|Past minutes]]

== Members ==

 * Chief: R. Takahashi
 * Member: N. Ohishi, H. Ishizaki, F. E. Pena Arellano, M. Barton, N. Hirata, R. Flaminio, Y. Aso, T. Akutsu , E. Tapia (NAOJ),
 T. Sekiguchi, K. Yamamoto, T. Uchiyama (ICRR), R. DeSalvo (Univ. of Sannio), E. Majorana (INFN Rome), J. van den Brand, E. Hennes, A. Bertolini, J. van Heijningen, K. Agatsuma (NIKHEF)


<<Navigation(children)>>

VIS

Vibration Isolation System is the hardware infrastructure for the main optics in the KAGRA interferometer.

Space for VIS-internal use

Quick announcement

  • VIS meeting: From 14:00 (JST) on every Friday - Meeting Page


VIS Upgrades

Upgrade Page


Instruments

Suspension types

Type-A

Type-B

Type-Bp

Type-C

Payload

Actuator design summary

Design Change Logs

Suspended optics

The optics in the KAGRA interferometer is often called their acronyms/abbreviations. Please mind also that we call the vacuum chambers or clean booths in a similar manner.

  • Arm cavity
    • ETMX
    • ETMY
    • ITMX
    • ITMY
  • Beam splitter (BS)
  • Signal recycling cavity
    • SRM
    • SR2
    • SR3
  • Power recycling cavity
    • PRM
    • PR2
    • PR3
  • Input optics
    • IMC
    • IMMT1
    • IMMT2
  • Output optics
    • OMMT1
    • OMMT2
    • OSTM
    • OMC
  • Auxiliary optics
    • TMSX
    • TMSY

Mechanics

Tower

  • Pre-isolator
    • Inverted Pendulum (IP)
    • Top GAS Filter (TF1)

  • Standard GAS Filter (SF)
  • Bottom GAS Filter (BF)
  • Magnetic damper

Payload

  • Cryogenic payload (CRYp): The bottom 4 stages in Type-A suspension, branch recoil-mass chain
    • Platform (PF)
    • Marionette (MN)
    • Intermediate Mass (IM)
    • Test Mass (TM)
  • Room-temperature payload: The bottom 2 stages in Type-B and Type-Bp suspension, parallel recoil-mass chain
    • Intermediate Mass (IM)
    • Test Mass (TM)


Installation


Real Time Model Development


Operation


VIS Introductioon


VIS Commissioning


Archives


Old Weekly EVO Meeting

  • This meeting is suspended.

Past minutes

Members

  • Chief: R. Takahashi
  • Member: N. Ohishi, H. Ishizaki, F. E. Pena Arellano, M. Barton, N. Hirata, R. Flaminio, Y. Aso, T. Akutsu , E. Tapia (NAOJ),

    T. Sekiguchi, K. Yamamoto, T. Uchiyama (ICRR), R. DeSalvo (Univ. of Sannio), E. Majorana (INFN Rome), J. van den Brand, E. Hennes, A. Bertolini, J. van Heijningen, K. Agatsuma (NIKHEF)

  1. This abbreviation should be avoided because it often refers to rather Transfer Function. (1)

KAGRA/Subgroups/VIS (last edited 2022-02-25 19:10:23 by HirotakaYuzurihara)