title: Measuring the strong electrostatic and magnetic fields with proton radiography for ultra-high intensity laser channeling on fast ignition.
abstract: In order to investigate the intense laser propagation and channel formation in dense plasma, we conducted an experiment with proton deflectometry on the OMEGA EP Laser facility. The proton image was analyzed by tracing the trajectory of mono-energetic protons, which provides understanding the electric and magnetic fields that were generated around the channel. The estimated field strengths (E ∼ 10(11) V/m and B ∼ 10(8) G) agree with the predictions from 2D-Particle-in-cell (PIC) simulations, indicating the feasibility of the proton deflectometry technique for over-critical density plasma.
authors.affiliation: Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Uematsu
authors.affiliation: Laboratory for Laser Energetics, 250 East River Road, Rochester, New York 14623-1299, USA.
authors.forename: S
authors.initials: S
authors.lastname: Ivancic
authors.affiliation: Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Iwawaki
authors.affiliation: Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Habara
authors.affiliation: Shanghai Institute of Laser Plasma, 201800 Shanghai, China.
authors.forename: A L
authors.initials: AL
authors.lastname: Lei
authors.affiliation: Laboratory for Laser Energetics, 250 East River Road, Rochester, New York 14623-1299, USA.
authors.forename: W
authors.initials: W
authors.lastname: Theobald
authors.affiliation: Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan.
authors.forename: K A
authors.initials: KA
authors.lastname: Tanaka