Actuator efficiencies
|
BS (f-2 m/ct) |
ITMX (f-2 m/ct) |
ITMY (f-2 m/ct) |
ETMX (f-2 m/ct) |
ETMY (f-2 m/ct) |
PRM (f-2 m/ct) |
klog |
'19/11/26 Free swing |
6.02e-11 |
|
1.71e-12 (※1) |
|
6.05e-12 (※1) |
1.0e-9 |
|
'20/04/07 Pcal |
|
|
|
4.66e-12 |
4.03e-12 |
|
|
'20/04/16 Pcal |
|
|
|
4.71e-12 |
4.06e-12 |
|
|
'20/04/21 Free swing |
5.63e-11 |
5.17e-12 |
5.84e-12 |
4.46e-12 |
3.45e-12 |
|
|
'20/04/21 Pcal |
|
|
|
4.59e-12 |
3.91e-12 |
|
- - ※1: Before replacement of coil drivers.
2nd Engineering run (2019/7/13)
|
contrast |
optical gain (cnt/m) |
|
Before |
78.2% |
2.63e8 |
|
After |
64.3% |
2.18e8 |
|