TY - JOUR PB - American Physical Society ID - 10.1103/PhysRevFocus.17.4 TI - Electron Speedometer JF - Physical Review Focus JA - Phys. Rev. Focus J1 - FOCUS VL - 17 IS - SP - 4 EP - PY - 2006/02/03/ UR - http://link.aps.org/doi/10.1103/PhysRevFocus.17.4 A1 - Krieger, Kim ER -