Research Seminars @ Illinois

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Tailored for undergraduate researchers, this calendar is a curated list of research seminars at the University of Illinois. Explore the diverse world of research and expand your knowledge through engaging sessions designed to inspire and enlighten.

To have your events added or removed from this calendar, please contact OUR at ugresearch@illinois.edu

Astrophysics, Gravitation and Cosmology Seminar - Anna Kofman (UPenn) "The Largest Cryogenic Receiver Ever Built for Studying the Oldest Light in the Universe: An Overview of the Simons Observatory LATR"

Event Type: Seminar/Symposium
Sponsor: Department of Physics
Location: Loomis Lab 464
Date: Jan 17, 2024 12:00 pm
Speaker: Anna Kofman
Contact: Deanna Frye
E-Mail: ddebord@illinois.edu
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Originating Calendar: Physics - Astrophysics, Relativity, and Cosmology Seminar; In order to rule out competing evolutionary models of the universe and better constrain cosmological parameters including the primordial baryon density, the Hubble constant, and the growth of structure in our universe, more sensitive ground-based telescopes are needed for surveying the Cosmic Microwave Background (CMB). In response to this call, the Simons Observatory (SO) has developed a 6-m Large Aperture Telescope (LAT) to study the CMB from the Chilean Andes. Mapping nearly 40% of the sky at arcminute angular resolution with a noise level of 6 uK-arcmin, the LAT will be the most sensitive CMB survey instrument to-date. The LAT houses the 2.4-m diameter Large Aperture Telescope Receiver (LATR), the largest cryogenic receiver built for studying the CMB. The LATR will house over 62,000 Transition Edge Sensor (TES) detectors operating at 100 mK and sensitive to frequencies between 27 GHz and 280 GHz. Nearly a decade of research, design and testing work went into developing the telescope and its receiver, which are currently deployed in Chile. In this talk, I will present an overview of the project's scientific motivations and the design drivers behind the telescope and receiver along with an in-depth look into the final receiver design and its current status.

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