Kavli Affiliate: Naoyuki Tamura
| Summary:
We describe the design and performance of the SuMIRe Prime Focus Spectrograph (PFS) visible camera cryostats. SuMIRe PFS is a massively multi-plexed ground-based spectrograph consisting of four identical spectrograph modules, each receiving roughly 600 fibers from a 2394 fiber robotic positioner at the prime focus. Each spectrograph module has three channels covering wavelength ranges 380~nm — 640~nm, 640~nm — 955~nm, and 955~nm — 1.26~um, with the dispersed light being imaged in each channel by a f/1.07 vacuum Schmidt camera. The cameras are very large, having a clear aperture of 300~mm at the entrance window, and a mass of $sim$280~kg. In this paper we describe the design of the visible camera cryostats and discuss various aspects of cryostat performance.
| Search Query: arXiv Query: search_query=au:”Tamura Naoyuki”&id_list=&start=0&max_results=10
Read More