Cryogenic system for the interferometric cryogenic gravitational wave telescope, KAGRA - Design, fabrication, and performance test

C. Tokoku, N. Kimura, S. Koike, T. Kume, Y. Sakakibara, T. Suzuki, K. Yamamoto, D. Chen, S. Goto, M. Tanaka, S. Ioka, K. Nakamoto, H. Nezuka, T. Uchiyama, M. Ohashi, K. Kuroda