Laser Ion Acceleration from the Interaction of Ultra-Intense Laser Pulse with Thi Foils - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Laser Ion Acceleration from the Interaction of Ultra-Intense Laser Pulse with Thi Foils write by . This book was released on 2004. Laser Ion Acceleration from the Interaction of Ultra-Intense Laser Pulse with Thi Foils available in PDF, EPUB and Kindle. The discovery that ultra-intense laser pulses (I> 1018 W/cm2) can produce short pulse, high energy proton beams has renewed interest in the fundamental mechanisms that govern particle acceleration from laser-solid interactions. Experiments have shown that protons present as hydrocarbon contaminants on laser targets can be accelerated up to energies> 50 MeV. Different theoretical models that explain the observed results have been proposed. One model describes a front-surface acceleration mechanism based on the ponderomotive potential of the laser pulse. At high intensities (I> 1018 W/cm2), the quiver energy of an electron oscillating in the electric field of the laser pulse exceeds the electron rest mass, requiring the consideration of relativistic effects. The relativistically correct ponderomotive potential is given by Up = ([1 + I[lambda]2/1.3 x 1018]1/2 - 1) moc2, where I[lambda]2 is the irradiance in W[mu]m2/cm2 and moc2 is the electron rest mass. At laser irradiance of I[lambda]2 ~ 1018 W[mu]m2/cm2, the ponderomotive potential can be of order several MeV. A few recent experiments--discussed in Chapter 3 of this thesis--consider this ponderomotive potential sufficiently strong to accelerate protons from the front surface of the target to energies up to tens of MeV. Another model, known as Target Normal Sheath Acceleration (TNSA), describes the mechanism as an electrostatic sheath on the back surface of the laser target. According to the TNSA model, relativistic hot electrons created at the laser-solid interaction penetrate the foil where a few escape to infinity. The remaining hot electrons are retained by the target potential and establish an electrostatic sheath on the back surface of the target.
Ion acceleration and extreme light field generation based on ultra-short and ultra–intense lasers
Ion acceleration and extreme light field generation based on ultra-short and ultra–intense lasers - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Ion acceleration and extreme light field generation based on ultra-short and ultra–intense lasers write by Liangliang Ji. This book was released on 2014-01-23. Ion acceleration and extreme light field generation based on ultra-short and ultra–intense lasers available in PDF, EPUB and Kindle. This book is dedicated to the relativistic (laser intensity above 1018 W/cm2) laser-plasma interactions, which mainly concerns two important aspects: ion acceleration and extreme-light-field (ELF). Based on the ultra-intense and ultra–short CP lasers, this book proposes a new method that significantly improves the efficiency of heavy-ion acceleration, and deals with the critical thickness issues of light pressure acceleration. More importantly, a series of plasma approaches for producing ELFs, such as the relativistic single-cycle laser pulse, the intense broad-spectrum chirped laser pulse and the ultra-intense isolated attosecond (10-18s) pulse are introduced. This book illustrates that plasma not only affords a tremendous accelerating gradient for ion acceleration but also serves as a novel medium for ELF generation, and hence has the potential of plasma-based optics, which have a great advantage on the light intensity due to the absence of device damage threshold.
Ion Acceleration from the Interaction of Ultra-intense Lasers with Solid Foils
Ion Acceleration from the Interaction of Ultra-intense Lasers with Solid Foils - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Ion Acceleration from the Interaction of Ultra-intense Lasers with Solid Foils write by Matthew Mark Allen. This book was released on 2004. Ion Acceleration from the Interaction of Ultra-intense Lasers with Solid Foils available in PDF, EPUB and Kindle.
Multispecies Ion Acceleration from Intense Laser Interactions with Thin Foils
Multispecies Ion Acceleration from Intense Laser Interactions with Thin Foils - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Multispecies Ion Acceleration from Intense Laser Interactions with Thin Foils write by Aodhan McIlvenny. This book was released on 2021. Multispecies Ion Acceleration from Intense Laser Interactions with Thin Foils available in PDF, EPUB and Kindle.
Proton Acceleration in Ultra-Relativistic Laser-Plasma Interaction
Proton Acceleration in Ultra-Relativistic Laser-Plasma Interaction - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Proton Acceleration in Ultra-Relativistic Laser-Plasma Interaction write by Tong-Pu Yu. This book was released on 2012. Proton Acceleration in Ultra-Relativistic Laser-Plasma Interaction available in PDF, EPUB and Kindle. With the rapid development of laser systems, plasma-based laser-driven ion acceleration has drawn increasing attention these years. In this book, one of the most efficient and promising ion acceleration mechanisms, so-called radiation pressure acceleration or light-sail regime is re-visited and studied in detail by theoretical analysis and multi-dimensional particle-in-cell (PIC) simulations. Based on a simple "flying plasma mirror" model, accurate scaling laws of the final ion energy, velocity, momentum, and energy coupling efficiency in the light-sail regime have been derived. For smooth proton acceleration, a shaped foil target or a density-modulated foil target is suggested to overcome the foil deformation when a transversely Gaussian laser pulse irradiates the foil. GeV proton beams can be generated with a well-defined quasi-monoenergetic feature in the energy spectrum. For stable proton acceleration in the light-sail regime, a two-ion-species shaped foil target is proposed and demonstrated by a series of PIC simulations. Hard X-ray gernation and attosecond electron beams are also stuided and verified in the light-sail regime.
