Estimated sensitivity for auxiliary degrees of freedom of the KAGRA interferometer

Document #:

JGW-T2011755-v10

Document type:

T

Submitted by:

Yuta Michimura

Updated by:

Yuta Michimura

Document Created:

13 Jun 2020, 06:28

Contents Revised:

04 Jul 2020, 16:56

DB Info Revised:

12 Aug 2020, 09:32

Abstract:

Sensitivity estimate for MICH, PRCL, SRCL, CARM, compared with DARM.

v1: Preliminary draft. Very rough suspension thermal noise.
v2: Added references for mirrors, updated Type-B suspension parameters.
v3-v5: Some more suspension parameters added, coating parameters updated.
v6: Added material properties for suspension wires.
v7: First complete version with Python codes and data attached as a zip file.
v8: Corrected ITM contribution to PRCL and SRCL (should be 0.5 instead of 1)
v8: Corrected typos in the ylabels of the plots.
v10: Added actuator noise to MICH, PRCL and SRCL.

Files in Document:

• AuxiliarySensitivity.pdf (3.9 MB)
• AuxiliarySensitivity.ppt (5.0 MB)
• AuxiliarySensitivity_v20200704.zip (2.5 MB)

Topics:

• Activity:KAGRA
• Detector:Interferometer
• Detector:Suspensions
• Detector:Interferometer Sensing and Control

Authors:

• Yuta Michimura
• Kentaro Komori

Keywords:

sensitivity DARM CARM MICH PRCL SRCL

Related Documents:

• JGW-T1707038: Latest estimated sensitivity of KAGRA (v201708) *APPROVED*
• JGW-T1200913: KAGRA Main Interferometer Design Document