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Comment:
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← Revision 25 as of 2020-06-26 21:54:19 ⇥
2593
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Deletions are marked like this. | Additions are marked like this. |
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----- == Actuator efficiencies ratio == || '''Date''' || '''ITMX/BS''' || '''ITMY/BS''' || '''EMTX/ITMX''' || '''ETMY/ITMY''' || '''PRM/BS''' || '''klog''' || || '20/02/18 || - || - || - || - || 11.6 || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=13020|#13020]] || || '20/04/21 || 0.09186 || 0.1037 || 0.8623 || 0.5912 || - || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14265|#14265]] || || '20/06/17 || - || - || - || - || 47.5 || [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14555|#14555]] || |
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----- |
Actuator efficiencies
Date |
BS |
ITMX |
ITMY |
ETMX |
ETMY |
PRM |
klog |
'19/11/26 Free swing |
6.02e-11 |
- |
1.71e-12※1 |
- |
6.05e-12※1 |
- |
|
'20/02/18 Free swing |
(6.02e-11)※2 |
- |
- |
- |
- |
1.01e-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 |
- |
|
'20/06/16 Free swing |
6.28e-11 |
- |
- |
- |
- |
- |
|
'20/06/17 Free swing |
(6.28e-11)※2 |
- |
- |
- |
- |
2.98e-9 |
f-2 m/ct
- ※1: Before replacement of coil drivers
- ※2: Referred to the previous measurement
Actuator efficiencies ratio
Date |
ITMX/BS |
ITMY/BS |
EMTX/ITMX |
ETMY/ITMY |
PRM/BS |
klog |
'20/02/18 |
- |
- |
- |
- |
11.6 |
|
'20/04/21 |
0.09186 |
0.1037 |
0.8623 |
0.5912 |
- |
|
'20/06/17 |
- |
- |
- |
- |
47.5 |
2nd Engineering run (2019/7/13)
|
contrast |
optical gain (cnt/m) |
|
Before |
78.2% |
2.63e8 |
|
After |
64.3% |
2.18e8 |