Assembly Status of KAGRA Suspensions

Status

Red: no drawing, Orange: designed/ordered, Yellow: delivered, Green: assembled, Cyan: tested, Blue: Installed

Suspensions

Type

Stack

IP

F0

SF

BF

IM/IRM

TM/RM

Comments

iKAGRA

MCi

C

X

X

X

X

delivered to Kamioka

MCo

C

X

X

X

X

delivered to Kamioka

MCe

C

X

X

X

X

not aligned yet

PR2

Bp

X

X

X

PR3

Bp

X

X

X

BS

B

X

iETMX

Fixed Bp

X

X

X

X

iETMY

Fixed Bp

X

X

X

X

iITMX

Bp?

X

X

X

maybe we don't make this

iITMY

Bp?

X

X

X

maybe we don't make this

bKAGRA

PRM

Bp

X

X

X

SR3

B

X

SR2

B

X

SRM

B

X

bETMX

A

X

bETMY

A

X

bITMX

A

X

bITMY

A

X

IFI

C

X

X

X

X

IMMT1

C

X

X

X

X

IMMT2

C

X

X

X

X

OFI

C

X

X

X

X

OMC

C

X

X

X

X

TMSX

C

X

X

X

X

TMSY

C

X

X

X

X

Configurations

Type-A: IP + F0 + Standard GAS (3 stage) + BF + PF + IM + TM

Type-B: IP + F0 + Standard GAS (1 stage) + BF + IM + TM

Type-Bp: Standard GAS (1 stage) + BF + IM + TM

Fixed Type-Bp: BF + IM + TM

Type-C: Stack (+ IM) + TM

Mirrors etc.

iKAGRA

bKAGRA

bETM, bITM

Type-A

iETM

Fixed Type-Bp

BS

Type-B

Type-B

PRM

Type-Bp

PR2,PR3

Type-Bp

Type-Bp

SRM,SR2,SR3

Type-B

MCi/o/e,IFI,IMMT

Type-C

Type-C

OFI,OMC,TMS

Type-C

Sensors and Actuators

See JGW-T1402170 for arrangements of sensors and actuators for Type-A.

Similar arrangements apply for (Fixed) Type-Bp and Type-B.

For Type-C, we have TM actuation only.

Abbreviations

IP: Inverted Pendulum

F0: Top Filter (GAS filter)

SF: Standard Filter (GAS filter)

BF: Bottom Filter (GAS filter)

PF: Platform

GAS: Geometric Anti-Spring

IM: Intermediate Mass

IRM: Intermediate Recoil Mass

TM: Test Mass

RM: Recoil Mass

Payload: (BF + ) IM + IRM + TM + RM

KAGRA/Subgroups/VIS/AssemblyStatus (last edited 2015-03-19 14:54:26 by YutaMichimura)