Development of Academia Sinica Gravitational Physics Research Facility for LIGO

Daiki Tanabe^1,5*, Hsiang-Chieh Hsu¹, Yuki Inoue^1,3,4,5, Feng-Kai Lin¹, Zi-Yu Wang², Henry Tsz-King Wong¹

¹Institute of Physics, Academia Sinica, Taipei, Taiwan
²Department of Electrical Engineering, National Tsing Hua University, Hsinchu, Taiwan
³Department of Physics, National Central University, Taoyuan, Taiwan
⁴Center for High Energy and High Field Physics, National Central University, Taoyuan, Taiwan
⁵Institute of particle and nuclear physics, High Energy Accelerator Research Organization, Ibaraki, Japan

* Presenter:Daiki Tanabe, email:tana2431.ts@gmail.com

We are developing a facility for gravitational wave experiment in a sub-basement floor in Academia Sinica since March 2023. This facility is named Academia Sinica Gravitational Physics Research Facility (ASGRAF). Academia Sinica, National Central University, and National Tsing-Hua University collaborate as a Taiwan-LIGO instrumentation team and plan research and development for LIGO Voyager, a future project of LIGO worldwide collaboration. We are establishing a cryogenic interferometer system for thermal noise characterization, development of software, and education for students. A 2-meters interferometer system built in National Central University will be installed into ASGRAF in early 2024. We present an overview of ASGRAF design and current status of an active vibration isolation system for cryogenic chamber with a digital control system.

Keywords: 重力波, 雷射干渉計, 極低温技術, 制振技術