A VLF timing experiment

Status of the Lcls Experiment Timing System*

SLAC, Menlo Park, CA 94309, USA Abstract X-ray / optical laser pump probe experiments are used for a significant fraction of the scientific work performed at LCLS.[1] The experimental laser systems are locked to the timing of the electron beam through a combination of RF and optical fiber based systems. The remaining ~100 femtosecond RMS jitter of the X-rays relative to the optical laser is mea...

Analysis of magnetospheric ELF/VLF wave amplification from the Siple Transmitter experiment

Controlled experiments with dedicated ground-based ELF/VLF (0.3–30 kHz) transmitters are invaluable in investigating nonlinear whistler mode wave-particle interactions in the Earth’s magnetosphere. The most productive such experiment operated between 1973 and 1988 near L= 4 at Siple Station, Antarctica. A major effort has been undertaken to digitize and preserve a significant portion of the his...

Vlf Airborne Navigation Requirements

Quantitative 2D VLF data interpretation

Ž . The ability of the VLF-R Resistivity method to provide quantitative subsurface resistivity information is examined. The Ž . frequencies used in conventional VLF 15 to 30 kHz provide the deepest penetrations of the multi-frequency, extended method of RadioMT. Both methods are considered. VLF data, being effectively single frequency, are insufficient to resolve Ž . Ž . one-dimensional 1D vert...

Analysing and Classifying VLF Transients

Monitoring lightning electromagnetic pulses (sferics) and other terrestrial as well as extraterrestrial transient radiation signals is of considerable interest for practical and theoretical purposes in astroand geophysics as well as meteorology. Managing a continuous flow of data, automation of the analysis and classification process is important. Features based on a combination of wavelet and ...