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Design and pre-flight performance of SPIDER 280 GHz receivers
E. C. Shaw, P. A. R. Ade, S. Akers +79
In this work we describe upgrades to the Spider balloon-borne telescope in preparation for its second flight, currently planned for December 2021. The Spider instrument is optimize…
The Simons Observatory: the Large Aperture Telescope Receiver (LATR) Integration and Validation Results
Zhilei Xu, Tanay Bhandarkar, Gabriele Coppi +42
The Simons Observatory (SO) will observe the cosmic microwave background (CMB) from Cerro Toco in the Atacama Desert of Chile. The observatory consists of three 0.5 m Small Apertur…
The Simons Observatory: Magnetic Sensitivity Measurements of Microwave SQUID Multiplexers
Eve M. Vavagiakis, Zeeshan Ahmed, Aamir Ali +30
The Simons Observatory (SO) will be a cosmic microwave background (CMB) survey experiment with three small-aperture telescopes and one large-aperture telescope, which will observe…
The Balloon-Borne Large Aperture Submillimeter Telescope Observatory
Ian Lowe, Gabriele Coppi, Peter A. R. Ade +30
The BLAST Observatory is a proposed superpressure balloon-borne polarimeter designed for a future ultra-long duration balloon campaign from Wanaka, New Zealand. To maximize scienti…
A three-wave mixing kinetic inductance traveling-wave amplifier with near-quantum-limited noise performance
M. Malnou, M. R. Vissers, J. D. Wheeler +4
We present a theoretical model and experimental characterization of a microwave kinetic inductance traveling-wave amplifier (KIT), whose noise performance, measured by a shot-noise…
Materials loss measurements using superconducting microwave resonators
Corey Rae Harrington McRae, Haozhi Wang, Jiansong Gao +5
The performance of superconducting circuits for quantum computing is limited by materials losses. In particular, coherence times are typically bounded by two-level system (TLS) los…
Characterization of Transition Edge Sensors for the Simons Observatory
Jason R. Stevens, Nicholas F. Cothard, Eve M. Vavagiakis +31
The Simons Observatory is building both large (6 m) and small (0.5 m) aperture telescopes in the Atacama desert in Chile to observe the cosmic microwave background (CMB) radiation…
Updated design of the CMB polarization experiment satellite LiteBIRD
H. Sugai, P. A. R. Ade, Y. Akiba +216
Recent developments of transition-edge sensors (TESs), based on extensive experience in ground-based experiments, have been making the sensor techniques mature enough for their app…