TY - CONF AU - Steven Jefferts AU - Thomas Heavner AU - Jon Shirley AU - Thomas Parker C2 - 6^uth^ Symposium on Frequency Standards and Metrology , St. Andrews, SC DA - 2001-01-01 LA - en PB - 6^uth^ Symposium on Frequency Standards and Metrology , St. Andrews, SC PY - 2001 TI - Systematic Frequency Shifts and Quantum Projection Noise in NIST-F1 ER -