bKAGRA Suspensions Actuator Design Summary

TM

IM

Suspension

coil

magnet

coil-magnet

coil driver

coil

magnet

coil-magnet

coil driver

MCi/e/o (Type-C)

40 turns

NdFeB

0.0014 N/A at max

TAMA

-

-

-

-

PR2/3/M (Type-Bp)

600 turns

SmCo 6mm dia, 3mm thick

0.129 N/A at max

high power

600 turns

SmCo 10mm dia, 10mm thick

1.12 N/A at max

high power

BS (Type-B)

600 turns

SmCo 2mm dia, 3mm thick

0.0313N/A at max

low power

600 turns

SmCo 10mm dia, 10mm thick

1.12 N/A at max

low power

SR2/3/M (Type-B)

600 turns

SmCo 2mm dia, 5mm thick

N/A at max

low power

600 turns

SmCo 10mm dia, 10mm thick

1.12 N/A at max

low power

ITM/ETM (Cryopayload)

600/500 turns(?)

SmCo(?) 2mm dia, 2mm thick

???

???

???

???

???

???