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Spin-polarized electron beam sources enable studies of spin-dependent electric and magnetic effects at the nanoscale. We propose a method of creating spin-polarized electrons on an integrated photonics chip by laser driven nanophotonic…

Employing colliding-pulse injection has been shown to enable high-quality electron beams to be generated from laser-plasma accelerators. Here by leveraging test particle simulations, Hamiltonian analysis, and multidimensional…

Accelerator Physics · Physics 2023-10-09 Zheng Gong , Michael J. Quin , Simon Bohlen , Christoph H. Keitel , Kristjan Põder , Matteo Tamburini

A laser ablation ion source (LAS) is a powerful tool by which diverse species of ions can be produced for mass spectrometer calibration, or surface study applications. It is necessary to frequently shift the laser position on the target to…

This chapter provides an overview of the basic requirements for ion sources designed and operated in radioactive ion beam facilities. The facilities where these sources are operated exploit the isotope separation online (ISOL) technique, in…

Accelerator Physics · Physics 2014-04-03 T. Stora

In order to achieve the physics goals of future Linear Colliders, it is important that electron and positron beams are polarized. The baseline design at the International Linear Collider (ILC) foresees an e+ source based on helical…

Accelerator Physics · Physics 2012-02-06 V. Kovalenko , O. S. Adeyemi , A. Hartin , G. Moortgat-Pick , L. Malysheva , S. Riemann , F. Staufenbiel , A. Ushakov

It is shown that well collimated mono-energetic ion beams with a large particle number can be generated in the hole-boring radiation pressure acceleration regime by using an elliptically polarized laser pulse with appropriate theoretically…

Plasma Physics · Physics 2015-06-12 Dong Wu , C. Y. Zheng , C. T. Zhou , X. Q. Yan , M. Y. Yu , X. T. He

Tailoring optical nonlinear effects (e.g. harmonic generation, sum-frequency mixing, etc.) in the recently emerging all-dielectric platform is important for both the fundamental science and industrial development of high-efficiency,…

Optics · Physics 2022-06-02 Shuyuan Xiao , Meibao Qin , Junyi Duan , Feng Wu , Tingting Liu

It should be possible to generate multi-ampere spin-polarized beams of hydrogen isotopes by repeated charge-transfer collisions in highly spin-polarized Cs vapor. Estimates suggest that off-resonant Raman pumping with kW scale narrowband…

Atomic Physics · Physics 2026-05-19 Thad G. Walker , Cary B. Forest , Deniz D. Yavuz

In the main magnetic focus ion source, atomic ions are produced in the local ion trap created by the rippled electron beam in focusing magnetic field. Here we present the novel modification of the room-temperature hand-size device, which…

Plasma Physics · Physics 2015-12-09 V. P. Ovsyannikov , A. V. Nefiodov

Highly polarized, multi-kiloampere-current electron bunches from compact laser-plasma accelerators are desired for numerous applications. Current proposals to produce these beams suffer from intrinsic limitations to the reproducibility,…

Accelerator Physics · Physics 2023-10-05 Simon Bohlen , Zheng Gong , Michael J. Quin , Matteo Tamburini , Kristjan Põder

The major challenges to fabricate quantum processors and future nano solid state devices are material modification techniques with nanometre resolution and suppression of statistical fluctuations of dopants or qubit carriers. Based on a…

Quantum Physics · Physics 2009-11-13 W. Schnitzler , N. M. Linke , R. Fickler , J. Meijer , F. Schmidt-Kaler , K. Singer

We describe a scheme for producing polarised positrons at the ILC from polarised X-rays created by Compton scattering of a few-GeV electron beam off a CO2 or YAG laser. This scheme is very energy effective using high finesse laser cavities…

We present an analytical theory for impact ionization fronts in reversely biased p^{+}-n-n^{+} structures. The front propagates into a depleted n base with a velocity that exceeds the saturated drift velocity. The front passage generates a…

Materials Science · Physics 2009-11-13 Pavel Rodin , Ute Ebert , Andrey Minarsky , Igor Grekhov

The influence has been studied of the ionization laser polarization on the effective temperature of an ultracold electron source, which is based on near-threshold photoionization. This source is capable of producing both high-intensity and…

Atomic Physics · Physics 2013-12-24 W. J. Engelen , D. J. Bakker , O. J. Luiten , E. J. D. Vredenbregt

A large volume surface plasma source (SPS) with a biased converter was developed for the Los Alamos linear accelerator. A large gas-discharge chamber with a multipole magnetic wall and 2 heated cathodes can support a discharge generating…

Plasma Physics · Physics 2020-10-16 V. Dudnikov

Circularly polarized (CP) $\gamma$-ray sources are versatile for broad applications in nuclear physics, high-energy physics and astrophysics. The laser-plasma based particle accelerators provide accessibility for much higher flux…

Nonlinear Compton scattering driven by ultraintense lasers presents a promising avenue for enhancing the photon energy, brilliance, and setup compactness of $\gamma$-ray sources. However, a significant challenge lies in achieving a high…

Plasma Physics · Physics 2024-04-12 Xian-Zhang Wu , Yan-Fei Li , Yu-Tong Li

The Neutral beam Injectors of the ITER experiment will be based on negative ion sources for the generation of beams composed by 1 MeV H/D particles. The prototype of these sources is currently under testing in the SPIDER experiment, part of…

Plasma Physics · Physics 2023-08-30 M. Barbisan , R. Agnello , G. Casati , R. Pasqualotto , E. Sartori , G. Serianni

It is proposed to develop a source of polarized ^3He^{++} ions for the JINR Accelerator Complex on the basis of its polarized deuteron source by feeding its radio-frequency dissociator with ^3He gas to produce metastable atoms, using an…

Accelerator Physics · Physics 2009-09-28 V. V. Fimushkin , E. D. Donets , I. V. Gapienko , Yu. A. Plis , Yu. V. Prokofichev , V. P. Vadeev

Positron sources are critical components of the future linear collider projects. This is essentially due to the high luminosity required, orders of magnitude higher than existing ones. In addition, polarization of the positron beam rather…

Accelerator Physics · Physics 2014-05-13 I. Chaikovska , R. Chehab , O. Dadoun , P. Lepercq , A. Variola
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