24 July 2014 Prime focus instrument of prime focus spectrograph for Subaru telescope
Author Affiliations +
The Prime Focus Spectrograph (PFS) is a new optical/near-infrared multi-fiber spectrograph design for the prime focus of the 8.2m Subaru telescope. PFS will cover 1.3 degree diameter field with 2394 fibers to complement the imaging capability of Hyper SuprimeCam (HSC). The prime focus unit of PFS called Prime Focus Instrument (PFI) provides the interface with the top structure of Subaru telescope and also accommodates the optical bench in which Cobra fiber positioners are located. In addition, the acquisition and guiding (AG) cameras, the optical fiber positioner system, the cable wrapper, the fiducial fibers, illuminator, and viewer, the field element, and the telemetry system are located inside the PFI. The mechanical structure of the PFI was designed with special care such that its deflections sufficiently match those of the HSC’s Wide Field Corrector (WFC) so the fibers will stay on targets over the course of the observations within the required accuracy.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shiang-Yu Wang, Shiang-Yu Wang, David F. Braun, David F. Braun, Mark A. Schwochert, Mark A. Schwochert, Pin-Jie Huang, Pin-Jie Huang, Masahiko Kimura, Masahiko Kimura, Hsin-Yo Chen, Hsin-Yo Chen, Daniel J. Reiley, Daniel J. Reiley, Peter Mao, Peter Mao, Charles D. Fisher, Charles D. Fisher, Naoyuki Tamura, Naoyuki Tamura, Yin-Chang Chang, Yin-Chang Chang, Yen-Sang Hu, Yen-Sang Hu, Hung-Hsu Ling, Hung-Hsu Ling, Chih-Yi Wen, Chih-Yi Wen, Richard C.-Y. Chou, Richard C.-Y. Chou, Naruhisa Takato, Naruhisa Takato, Hajime Sugai, Hajime Sugai, Youichi Ohyama, Youichi Ohyama, Hiroshi Karoji, Hiroshi Karoji, Atsushi Shimono, Atsushi Shimono, Akitoshi Ueda, Akitoshi Ueda, "Prime focus instrument of prime focus spectrograph for Subaru telescope", Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 91475Q (24 July 2014); doi: 10.1117/12.2057247; https://doi.org/10.1117/12.2057247


Back to Top