GLT receiver commissioning at JCMT and future JCMT instrumentation

Dan Bintley; Per Friberg; Ryan Berthold; Tim Chuter; Kuan-Yu Liu; Craig Walther; Jessica Dempsey; Paul Ho; Helen McGregor; Satoki Matsushita; Keiichi Asada; Shoko Koyama; Hiroaki Nishioka; Chih-Chiang Han; Chih-Wei Huang; Lupin Lin; Ta-Shun Wei; Derek Kubo; Ranjani Srinivasan; Ramprasad Rao; Geoff Bower; Peter Oshiro; Ming-Tang Chen

doi:10.1117/12.2313083

9 July 2018 GLT receiver commissioning at JCMT and future JCMT instrumentation

Dan Bintley, Per Friberg, Ryan Berthold, Tim Chuter, Kuan-Yu Liu, Craig Walther, Jessica Dempsey, Paul Ho, Helen McGregor, Satoki Matsushita, Keiichi Asada, Shoko Koyama, Hiroaki Nishioka, Chih-Chiang Han, Chih-Wei Huang, Lupin Lin, Ta-Shun Wei, Derek Kubo, Ranjani Srinivasan, Ramprasad Rao, Geoff Bower, Peter Oshiro, Ming-Tang Chen

Author Affiliations +

Proceedings Volume 10708, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX; 1070815 (2018) https://doi.org/10.1117/12.2313083
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

The Greenland Telescope (GLT) project and the East Asian Observatory (EAO) successfully commissioned the first light GLT instrument at the James Clerk Maxwell Telescope (JCMT) in Hawaii, prior to transferring the instrument to Greenland. The GLT instrument which comprises of a cryostat with three cartridge-type receivers (at 86GHz, 230GHz and 345GHz) was installed into the receiver cabin of JCMT and operated in three modes: - (a) Regular JCMT observing with the GLT instrument, using ACSIS, (JCMT’s autocorrelation spectrometer) as the backend and JCMT software for telescope control, data reduction, pointing and antenna focus adjustment. (b) Single dish observations of astronomical spectral line sources, recording data onto mark 6 recorders for offline data reduction. (c) eSMA interferometer array observations at 230GHz in conjunction with the SMA. In this paper, we report on the installation and integration of the GLT instrument at JCMT, present results from commissioning and show how the success of the GLT instrument commissioning fits with our plans for future instrumentation at JCMT.

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Dan Bintley, Per Friberg, Ryan Berthold, Tim Chuter, Kuan-Yu Liu, Craig Walther, Jessica Dempsey, Paul Ho, Helen McGregor, Satoki Matsushita, Keiichi Asada, Shoko Koyama, Hiroaki Nishioka, Chih-Chiang Han, Chih-Wei Huang, Lupin Lin, Ta-Shun Wei, Derek Kubo, Ranjani Srinivasan, Ramprasad Rao, Geoff Bower, Peter Oshiro, and Ming-Tang Chen "GLT receiver commissioning at JCMT and future JCMT instrumentation", Proc. SPIE 10708, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX, 1070815 (9 July 2018); https://doi.org/10.1117/12.2313083

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