Atacama Submillimeter Telescope Experiment Polarimeter (APol)) is an integrated module that enables magnetic field imaging on the 10m dish telescope. APol works in combination with a transition edge sensor bolometer camera covering 245 to 370 GHz. Herein we introduce the design concept and latest progress. APol consists of a fast rotating half-wave plate (HWP) driven with torque motor and a wire grid. The HWP is designed for the Cassegrain focus of ASTE to avoid physical conflict with existing components when ASTE TES bolometer camera is in operation.Our HWP is designed and built in collaboration with Pisano based in Cardiff University using metal meshed plates. Transmission is expected to be >90% across the bandwidth at room temperature.
Design Concept Of ASTE Polarimeter (APol) / Lee, Robin K. M.; Bai Li, Hua; Oshima, Tai; Pisano, Giampaolo; Takekoshi, Tatsuya. - (2015). (Intervento presentato al convegno 40th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2015 tenutosi a Yasumoto International Academic Building (YIA) at the Chinese University of Hong Kong, chn).
Design Concept Of ASTE Polarimeter (APol)
Giampaolo Pisano;
2015
Abstract
Atacama Submillimeter Telescope Experiment Polarimeter (APol)) is an integrated module that enables magnetic field imaging on the 10m dish telescope. APol works in combination with a transition edge sensor bolometer camera covering 245 to 370 GHz. Herein we introduce the design concept and latest progress. APol consists of a fast rotating half-wave plate (HWP) driven with torque motor and a wire grid. The HWP is designed for the Cassegrain focus of ASTE to avoid physical conflict with existing components when ASTE TES bolometer camera is in operation.Our HWP is designed and built in collaboration with Pisano based in Cardiff University using metal meshed plates. Transmission is expected to be >90% across the bandwidth at room temperature.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
