The repair work and future plan for the Auto-Correlation Spectral Imaging System (ACSIS) at the James Clerk Maxwell Telescope (JCMT)

Kuan-Yu Liu; Dan Bintley; Ryan Berthold; Graham Bell; Ming-Jye Wang; Ming-Tang Chen; Yau-Te Huang; Chih-Chiang Han; Chau-Ching Chiong; Chao-Te Li; Homin Jiang; Derek Kubo; Gary A. Fuller; Weiye Zhong; Junhao Liu; Harriet Parsons; Jessica Dempsey; Per Friberg; Maren Purves; Sarah Graves; Jamie Cookson; Ed Sison; Xue-Jian Jiang; Izumi Mizuno; Shaoliang Li; William Stahm; Craig Walther; Wei Yu; Ran Duan

doi:10.1117/12.2628389

31 August 2022 The repair work and future plan for the Auto-Correlation Spectral Imaging System (ACSIS) at the James Clerk Maxwell Telescope (JCMT)

Kuan-Yu Liu, Dan Bintley, Ryan Berthold, Graham Bell, Ming-Jye Wang, Ming-Tang Chen, Yau-Te Huang, Chih-Chiang Han, Chau-Ching Chiong, Chao-Te Li, Homin Jiang, Derek Kubo, Gary A. Fuller, Weiye Zhong, Junhao Liu, Harriet Parsons, Jessica Dempsey, Per Friberg, Maren Purves, Sarah Graves, Jamie Cookson, Ed Sison, Xue-Jian Jiang, Izumi Mizuno, Shaoliang Li, William Stahm, Craig Walther, Wei Yu, Ran Duan

Author Affiliations +

Proceedings Volume 12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI; 1219031 (2022) https://doi.org/10.1117/12.2628389
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

Auto-Correlation Spectral Imaging System (ACSIS) is an IF, correlation, reduction, and display system for the submillimeter telescope James Clerk Maxwell Telescope (JCMT). It can produce calibrated spectral images in real time and enables rapid imaging of large areas of the sky over a wide spectral range or at high resolution from up to 16 receiver feeds. Now more than 20 years old, the original 8-10GHz synthesizers for the down conversion module are obsolete and no longer available. Due to the hardware changes in the new 4-10GHz model, an interface circuit is needed to shorten the rise time of the serial clock signal. Further upgrades can better support wide IF band 2-12GHz receiver applications, such as Atacama Large Millimeter Array (ALMA) band-6 receivers. This paper discusses the observatory’s development of a new correlator that utilizes several existing electronics to support current and future receivers.

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Kuan-Yu Liu, Dan Bintley, Ryan Berthold, Graham Bell, Ming-Jye Wang, Ming-Tang Chen, Yau-Te Huang, Chih-Chiang Han, Chau-Ching Chiong, Chao-Te Li, Homin Jiang, Derek Kubo, Gary A. Fuller, Weiye Zhong, Junhao Liu, Harriet Parsons, Jessica Dempsey, Per Friberg, Maren Purves, Sarah Graves, Jamie Cookson, Ed Sison, Xue-Jian Jiang, Izumi Mizuno, Shaoliang Li, William Stahm, Craig Walther, Wei Yu, and Ran Duan "The repair work and future plan for the Auto-Correlation Spectral Imaging System (ACSIS) at the James Clerk Maxwell Telescope (JCMT)", Proc. SPIE 12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI, 1219031 (31 August 2022); https://doi.org/10.1117/12.2628389

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