Revisiting the optimization of the SCUBA-2 TES arrays for POL-2 and FTS-2 operations

Shaoliang Li; Dan Bintley; Jamie L. Cookson; Graham S. Bell; Per Friberg

doi:10.1117/12.2312776

9 July 2018 Revisiting the optimization of the SCUBA-2 TES arrays for POL-2 and FTS-2 operations

Shaoliang Li, Dan Bintley, Jamie L. Cookson, Graham S. Bell, Per Friberg

Proceedings Volume 10708, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX; 107083C (2018) https://doi.org/10.1117/12.2312776
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

The Sub-millimeter Common-User Bolometer Array 2 (SCUBA-2) large format Transition Edge Sensor (TES) arrays are optimized to maximize mapping speed with two commissioned regular observing scan patterns. The ancillary instruments POLarimeter 2 (POL-2) and Fourier Transform Spectrometer 2 (FTS-2) impose different demands on the arrays compared to regular stand-alone SCUBA-2 observing. This includes a change in the background optical power loading on the arrays and a requirement for a larger dynamic range from the individual TES bolometers. In this paper, we discuss the process for optimizing the TES arrays specifically for POL-2 and FTS-2 operations and report the improvements that we have obtained.

Citation Download Citation

Shaoliang Li, Dan Bintley, Jamie L. Cookson, Graham S. Bell, and Per Friberg "Revisiting the optimization of the SCUBA-2 TES arrays for POL-2 and FTS-2 operations", Proc. SPIE 10708, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX, 107083C (9 July 2018); https://doi.org/10.1117/12.2312776

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