Input Mode Cleaner Hardware
Location of the servo components
Green lines represent cabling.
MC REFL optical table: PD, QPD
Around MCi, MCe chambers: OpLev
MC rack: I-Q demodulators, MC board, MC RTS computer, Coil drivers, Picomotor Drivers
Laser room: TTFSS box, AOM
Questions
Where to put TTFSS ? Do we need a rack inside the laser room ?
Demodulator
Assigned to Aso
Use 4ch I-Q demodulators for the moment. JGW-D1402413
Necessary channels: 1ch for Length PD, 8ch for WFS QPDs.
|
Qty |
Interface |
Size |
Location |
Description |
4ch I-Q demod |
3 |
SMA, BNC(monitor) |
1U |
MC rack |
|
Coax. cables |
9 |
BNC->SMA |
10m? |
|
|
Power cables |
3 |
|
1m |
|
|
MC board
Assigned to Michimura and Nakano
- LIGOの回路図を見て，機能ブロック図を描く
→ LIGO-D1002416-v5(pole/zeroの位置は適宜調整されている可能性あり。参考: LIGO-D040180(回路図)、LIGO-E1200177(LIGOでの変更履歴))
- KAGRAで必要な修正点はあるか?
→ なさそう(pole/zeroの位置は適宜修正必要)。
- AOMとの接続は単なるBNCケーブル?
→ SMBとSMCは必要(参照: JGW-T1402941)。
Interface between MC board and RTS
Assigned to Michimura and Nakano
Cabling: JGW-D1402984 (MC board related JGW-T1402941, TTFSS related JGW-G1402963)
List below is for whole iKAGRA PSL+IMC. Electronics are listed at KAGRA/Subgroups/MIF/AEL page.
|
Qty |
Interface |
Size |
Location |
Description |
RF splitter |
1 |
BNC/SMA |
- |
PSL |
8 if there's no distributor |
Coax. cables |
11 |
BNC/SMA |
2m |
PSL |
|
Coax. cables |
6 |
BNC/SMA |
5m |
PSL to IO rack |
|
Coax. cables |
9 |
BNC/SMA |
4m |
IMC REFL to IO rack |
|
Coax. cables |
7 |
BNC/SMA |
2m |
IO rack |
|
Ribbon cables |
1 |
Dsub 37pin |
0.1m |
PSL |
TTFSS Interface to TTFSS |
Ribbon cables |
2 |
Dsub 25pin |
5m |
PSL to IO rack |
TTFSS Interface and PMC Servo Board(?) |
Ribbon cables |
2 |
Dsub 15pin |
5m |
PSL to IO rack |
for QPDs IP_A/B |
Ribbon cables |
2 |
Dsub 15pin |
4m |
IMC REFL to IO rack |
for QPDs IMCR_A/B |
Ribbon cables |
2 |
Dsub 15pin |
30m |
IMC TRANS to IO rack |
for QPDs IMCT_A/B |
Ribbon cables |
3 |
Dsub 9pin |
5m |
PSL to IO rack |
for PDs PMCR, PMCT, FRCT |
Ribbon cables |
1 |
Dsub 9pin |
4m |
IMC REFL to IO rack |
for PD IMCR |
Ribbon cables |
1 |
Dsub 9pin |
30m |
IMC TRANS to IO rack |
for PD IMCT |
Power cables |
4 |
|
5m |
from PSL to IO rack |
for TTFSS Interface and PMC Servo Board(?) |
Power cables |
14 |
|
2m |
IO rack |
|
Interface between RTS and MC suspensions
Assigned to Ohishi, Saito, Miyakawa
Type |
Number |
Length |
RTS - Coil Driver(LEMO) |
9 =(length, pitch, yaw)×3MCSs |
?m×6(MCI, MCO), ?m×3(MCE) |
Coil Driver - Feed through(BNC) |
12 (=4coils×3MCSs) |
? a few m |
Feed through - Coil(BNC) |
12 (=4coils×3MCSs) |
3m |
RTS-Picomotor Driver(LAN cable) |
6 |
?m |
Picomotor Driver(LAN port) - Feed through（Burndy） |
? |
?m |
Feed through - MCSs(Burndy) |
3 |
3m |
Reference
1. http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DGS/Projects/PicoMotor