18–22 Jun 2017
Hilton Brighton Metropole Hotel
Europe/London timezone

Laser induced plasma for HPM Compressor Switching

19 Jun 2017, 13:30
1h 30m
Hall 4 / Cambridge (Hilton Brighton Metropole Hotel)

Hall 4 / Cambridge

Hilton Brighton Metropole Hotel

Board: 3
Poster High Power Microwaves, RF Sources and Antennas Poster session I - High Power Microwaves, RF Sources and Antennas

Speaker

Dr Jacob Cohen (rafael)

Description

A key parameter for the compressor operation is the switch performance, transferring from a storage (high Q) phase to release (low Q) phase. By initiation of plasma due to a gas discharge phenomenon it is possible to drastically change the boundary conditions and enable a fast phase transfer.
In this work, we investigate the use of a high peak power laser pulse to generate seed electrons and initiate discharge. This mechanism, which utilizes multi-photon ionization in a strong RF environment, enables one to prevent the self breakdown (working slightly below the threshold) and yet to have a sub-ns buildup of seed electrons density followed by volume avalanche growth. This results in improved switching performance and greatly reduced time jitter.

Primary authors

Dr Jacob Cohen (rafael) Dr Yoav Hadas (Rafael)

Presentation materials

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