Speaker
David Carroll
(STFC)
Description
A time-frequency analysis of EMP data taken on the Vulcan Petawatt is presented. The time-frequency analysis applies a scanning time-window across the data within which the frequencies are resolved with a Fourier transform. As the frequencies of the measured EMP signal range from megahertz to gigahertz applying different scanning window lengths maximises the temporal information obtained, the considerations that need to be taken into account is discussed. Measurements of EMP signal have been taken at different locations simultaneously along the same line of sight within the Vulcan Petawatt interaction chamber. The initial analysis of this data will be presented looking at how the signal changes when it propagates across the chamber.
Primary author
David Carroll
(STFC)
Co-authors
David Neely
(Central Laser Facility)
Dr
Graeme Scott
(STFC)
Ms
Margaret Read
Mr
Matthew Selwood
(University Of York)
Mr
Michael Osborn
(STFC)
Prof.
Paul McKenna
(University of Strathclyde)
Rob Clarke
(STFC Rutherford Appleton Laboratory)
