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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 |
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| = 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 == . 常温防振＋ヒートリンク＋低温懸架 . リーダー： 高橋竜太郎 (NAOJ) . サブリーダー： 内山隆 (ICRR)、三代木伸二 (ICRR) |
== Space for VIS-internal use == |
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| === 第3回LCGT防振系作業部会 === . 8月6日(木) 15:00-16:30 天文台輪講室 [[attachment:LCGT/subgroup/vis/Modeling2.ppt|LCGT-SAS Modeling 2]] . [[attachment:LCGT/subgroup/vis/RandD2.pdf|低温懸架のR&Dについて]] |
=== Quick announcement === |
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| === 第2回LCGT防振系作業部会 === . 7月16日(木) 15:00-16:30 天文台輪講室 ([[attachment:LCGT/subgroup/vis/minutes2.pdf|議事録]]) . [[attachment:LCGT/subgroup/vis/Modeling1.ppt|LCGT-SAS Modeling]] . [[attachment:LCGT/subgroup/vis/RandD.pdf|LCGT-SASのR&Dについて]] |
=== Frequently used links === * '''VIS meeting''': From 14:00 (JST) on every Friday - [[KAGRA/Subgroups/VIS/MeetingNAOJ|Meeting Page]] |
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| === 第1回LCGT防振系作業部会 === . 6月3日(水) 17:00-19:00 天文台輪講室 ([[attachment:LCGT/subgroup/vis/minutes1.pdf|議事録]]) . [[attachment:LCGT/subgroup/vis/agenda1.pdf|作業班、スケジュール]] . [[attachment:LCGT/subgroup/vis/ICDsas.doc|ICD]] ([[attachment:ICDsas.pdf|PDF]]) . [[attachment:LCGT/subgroup/vis/LCGT-SAS2.pdf|常温-低温接続部]] . R&Dについて (次回) |
---- == VIS Upgrades == |
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| === TAMA SAS の問題点 === . [[LCGT/subgroup/vis/tama_sas|Item list to be improved]] |
[[KAGRA/Subgroups/VIS/Upgrade|Upgrade Page]] |
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| === TAMA Double Pendulum の問題点 === . [[LCGT/subgroup/vis/tama_double|Item list to be improved]] |
---- == Instruments == |
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| === Seismic spectrum in Kamioka mine === . [[attachment:LCGT/subgroup/ifo/SPI/HeatLink/0702seis_Araya.zip|In loud day]] (This data should be used as nominal ground motion in Kamioka) . [[attachment:CLIO/NoiseBudgets/seismic/cryo_seismic.txt|In cryostat]] |
=== Suspension types === [[KAGRA/Subgroups/VIS/TypeA|Type-A]] |
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| === Transfer function X0~7/Xg in the LCGT-SAS model === . [[attachment:LCGT/subgroup/vis/model_trf.txt|TRF]] |
[[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) ---- == Installation == . [[KAGRA/Subgroups/VIS/IstManual|Installation Procedure]] . [[KAGRA/Subgroups/VIS/VISInstWorkInfo|Misc. Installation Work Information]] . [[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]] ---- == VIS Introductioon == . [[KAGRA/Subgroups/VIS/Introduction|Introduction materials for VIS]] ---- == VIS Commissioning == . [[KAGRA/Subgroups/VIS/Type-A/Commissioning|Type-A Commissioning]] ---- == 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.
Contents
Space for VIS-internal use
Quick announcement
Frequently used links
VIS meeting: From 14:00 (JST) on every Friday - Meeting Page
VIS Upgrades
Instruments
Suspension types
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.
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)
This abbreviation should be avoided because it often refers to rather Transfer Function. (1)