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Telescope Array Radar

Title: Telescope Array Radar (TARA) Observatory for Ultra-High Energy Cosmic Rays
Author: R. Abbasi, M. Abou Bakr Othman, C. Allen, L. Beard, J. Belz, D. Besson, M. Byrne, B. Farhang-Boroujeny, A. Gardner, W.H. Gillman, W. Hanlon, J. Hanson, C. Jayanthmurthy, S. Kunwar, S.L. Larson, I. Myers, S. Prohyra, K. Ratzlaff, P. Sokolsky, H. Takai, G.B. Thomson, D. Von Maluski

Construction was completed during summer 2013 on the Telescope Array RAdar (TARA) bi-static radar observatory for Ultra-High Energy Cosmic Rays (UHECR). TARA is co-located with the Telescope Array, the largest "conventional" cosmic ray detector in the Northern Hemisphere, in radio-quiet Western Utah. TARA employs an 8 MW Effective Radiated Power (ERP) VHF transmitter and smart receiver system based on a 250 MS/s data acquisition system in an effort to detect the scatter of sounding radiation by UHECR-induced atmospheric ionization. TARA seeks to demonstrate bi-static radar as a useful new remote sensing technique for UHECRs, extending their detection aperture far beyond what is accessible by conventional means. In this report, we describe the design and performance of the TARA transmitter and receiver systems.

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