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| The fluctuation of the magnetic field gradient around the test masses is the main source of magnetic noise in KAGRA [1]. 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. |
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| 1タスクの定義は1週間程度で終わらせることができる研究 | |
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| == Document == | == References & Related Documents == [1] Magnetic noise calculation for BS (and ETM/ITM, PRM/SRM) [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4459|JGW-T1504459]] [2] Measurement of Schumann Resonance [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5544|JGW-G1605544]] [3] [[http://iopscience.iop.org/article/10.1088/1742-6596/716/1/012020/meta|Measurement of Schumann Resonance at Kamioka]] |
Measurement of the magnetic field gradient at the KAGRA site
Project description
The fluctuation of the magnetic field gradient around the test masses is the main source of magnetic noise in KAGRA [1]. 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
Result
Presentation
References & Related Documents
[1] Magnetic noise calculation for BS (and ETM/ITM, PRM/SRM) JGW-T1504459
[2] Measurement of Schumann Resonance JGW-G1605544