Measurement of the magnetic field gradient at the KAGRA site
The fluctuation of the magnetic field gradient around the test masses is the main source of magnetic noise in KAGRA . However, the gradient has not been directly measured so far though the fluctuation of the uniform field were measured [2,3]. Thus, the purpose of this project is to measure the gradient fluctuation or set an upper limit to it.
Project schedule and Task List
References & Related Documents
 Magnetic noise calculation for BS (and ETM/ITM, PRM/SRM) JGW-T1504459
 Measurement of Schumann Resonance JGW-G1605544