1. Cosmic-Ray Archaeology: from Boron-to-Carbon Ratio to Beryllium-Isotope Measurements Open Access Author: Chen, Yu Title: Cosmic-Ray Archaeology: from Boron-to-Carbon Ratio to Beryllium-Isotope Measurements Graduate Program: Physics (PHD) Keywords: cosmic ray propagationcosmic ray isotopescosmic ray secondariesinstrumentationtime of flight File: Download Yu_Chen_dissertation_final.pdf Committee Members: Miguel Mostafa, Major Field MemberKohta Murase, Major Field MemberDouglas Cowen, Major Field MemberStephane Coutu, Chair & Dissertation AdvisorSuvrath Mahadevan, Outside Unit & Field MemberMauricio Terrones, Program Head/Chair