Differences between revisions 3 and 12 (spanning 9 versions)

Summary of Phase 1 Measurements

Summary of Phase 1 measurements for bKAGRA Phase 1 paper.

Basic configurations

input power
power at detection RF PD
- Reflection from one end mirror 0.20 mW (http://klog.icrr.u-tokyo.ac.jp/osl/?r=4876)
- At dark fringe 56 +/- 10 uW (http://klog.icrr.u-tokyo.ac.jp/osl/?r=4903)
- signal chain (http://klog.icrr.u-tokyo.ac.jp/osl/?r=4920)
modulation frequency, modulation depth
- 16.87293 MHz (http://klog.icrr.u-tokyo.ac.jp/osl/?r=4831)
- beta = 0.12 (from error signal amplitude), 0.2 (from RF power applied to EOM) (http://klog.icrr.u-tokyo.ac.jp/osl/?r=4876 , http://klog.icrr.u-tokyo.ac.jp/osl/?r=4907)
vacuum level
suspension and coil driver configurations (difference between the final configuration)

Michelson initial alignment

details of slit method
Tcam and baffle PD performance (details-> Tcam paper)
- time delay, resolution ...
- succeefully monitored the beam under cryo baffles/shields

Installation accuracy

Schunupp asymmetry measurement
- http://klog.icrr.u-tokyo.ac.jp/osl/?r=4949
IMC length measurement
- 53.30299(2) m (http://klog.icrr.u-tokyo.ac.jp/osl/?r=4831)

Cryogenics

cooling curve (details -> CRY paper)
alignment drift during the cool down

Suspension characterization

length actuation efficiency measurements for BS, comparison with expectations
- http://klog.icrr.u-tokyo.ac.jp/osl/?r=4811
- http://klog.icrr.u-tokyo.ac.jp/osl/?r=4909
length actuation efficiency measurements for ETMX and Y, comparison with expectations
seismic attenuation ratio measurements for ETMY and Y
- http://klog.icrr.u-tokyo.ac.jp/osl/?r=4927
TF difference between ETMX and ETMY (room temperature and cryogenic)
vertical to length coupling, other coupling measurements

Sensitivity and stability

actuation efficiency drift
alignment drift of suspensions
visibility and optical gain drift
- http://klog.icrr.u-tokyo.ac.jp/osl/?r=4775
sensitivity stability, duty factor, lock duration (similar plots in https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5177)
Noise budget
magnetic and acoustic noise from PEM injection (details -> PEM paper?)
Earthquake in Hawaii 2018-05-04 22:32:55 (UTC)
- http://klog.icrr.u-tokyo.ac.jp/osl/?r=4948

Seismic noise, arm length drift

seismic spectra stability (similar plots in https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2971)
- http://klog.icrr.u-tokyo.ac.jp/osl/?r=4942
differential seismic noise measured by Michelson (3-km CMRR)
differential arm length drift, correlation between GIF-X

Hardware injection test

CBC injection(2018/4/30 Night shift)
CW injection(2018/5/2 Night shift)
- CW Injection

KAGRA/Commissioning/Phase1/Operation/MeasurementsSummary (last edited 2018-10-01 20:39:54 by YutaMichimura)

-  ⇤ ← Revision 3 as of 2018-04-30 13:11:05 → 
  Size: 2211
  Editor: KousekiMiyo
  Comment:
+   ← Revision 12 as of 2018-05-05 18:17:20 → ⇥
  Size: 3512
  Editor: YutaMichimura
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 9:
+  * signal chain (http://klog.icrr.u-tokyo.ac.jp/osl/?r=4920)
-Line 11:
+Line 12:
-  * beta = 0.058 (from error signal amplitude), 0.2 (from RF power applied to EOM)  (http://klog.icrr.u-tokyo.ac.jp/osl/?r=4876)
+  * beta = 0.12 (from error signal amplitude), 0.2 (from RF power applied to EOM)  (http://klog.icrr.u-tokyo.ac.jp/osl/?r=4876 , http://klog.icrr.u-tokyo.ac.jp/osl/?r=4907)
-Line 19:
+Line 20:
+  * succeefully monitored the beam under cryo baffles/shields
-Line 22:
+Line 24:
+  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4949
-Line 27:
+Line 30:
+ * alignment drift during the cool down
-Line 29:
+Line 33:
- * length actuation efficiency measurements for BS, comparison with expectations (http://klog.icrr.u-tokyo.ac.jp/osl/?r=4811)
+ * length actuation efficiency measurements for BS, comparison with expectations
  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4811
  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4909
-Line 31:
+Line 37:
+  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4898
  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4899
  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4919
  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4925
 * seismic attenuation ratio measurements for ETMY and Y
  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4927
-Line 37:
+Line 49:
- * visibility and optical gain drift (http://klog.icrr.u-tokyo.ac.jp/osl/?r=4775)
+ * visibility and optical gain drift
  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4775
-Line 39:
+Line 52:
- * Noise budget (http://klog.icrr.u-tokyo.ac.jp/osl/?r=4834)
+ * Noise budget
  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4834
  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4910
  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4944
-Line 41:
+Line 57:
+  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4891
  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4933
  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4871
  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4940
  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4954
 * Earthquake in Hawaii 2018-05-04 22:32:55 (UTC)
  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4948
-Line 44:
+Line 67:
+  * http://klog.icrr.u-tokyo.ac.jp/osl/?r=4942
-Line 46:
+Line 70:
+== Hardware injection test ==
 * CBC injection(2018/4/30 Night shift)
 * CW injection(2018/5/2 Night shift)
  * [[KAGRA/Commissioning/Phase1/Operation/MeasurementsSummary/CWInjection|CW Injection]]