Next-generation small CMB telescopes

Keith L. Thompson; Chao-Lin Kuo; Ki Won Yoon; Zeeshan Ahmed

doi:10.1117/12.2313927

6 July 2018 Next-generation small CMB telescopes

Keith L. Thompson, Chao-Lin Kuo, Ki Won Yoon, Zeeshan Ahmed

Proceedings Volume 10700, Ground-based and Airborne Telescopes VII; 107004K (2018) https://doi.org/10.1117/12.2313927
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

Significant progress in the search for primordial B-mode polarization in the microwave background radiation, a measurable signature of some theories of inflation, requires a substantial increase in total detector count over current experiments. It also requires tight control over sidelobes and background power. We present several larger designs for next-generation experiments to increase the detector count per telescope, but still retain the advantages of small-aperture cryogenic telescopes such as BICEP/Keck Array and ABS. Our comparison includes 0.7 and 1m aperture refractors and crossed-Dragone reflector designs, as well as two fast on-axis reflectors for low frequencies, and show they are all worthy of further study.

Citation Download Citation

Keith L. Thompson, Chao-Lin Kuo, Ki Won Yoon, and Zeeshan Ahmed "Next-generation small CMB telescopes", Proc. SPIE 10700, Ground-based and Airborne Telescopes VII, 107004K (6 July 2018); https://doi.org/10.1117/12.2313927

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