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Ion beam analysis techniques are among the most powerful tools for advanced material characterization. Despite their growing relevance in a widening number of fields, most ion beam analysis facilities still rely on the oldest accelerator…

等离子体物理 · 物理学 2019-03-06 Matteo Passoni , Luca Fedeli , Francesco Mirani

We explore a mechanism, entirely new to the fast solar wind, of electron heating by lower hybrid waves to explain the shift to higher charge states observed in various elements in the fast wind at 1 A.U. relative to the original coronal…

天体物理学 · 物理学 2009-11-10 J. Martin Laming

We propose a new technique for the detection of single atoms in ultracold quantum gases. The technique is based on scanning electron microscopy and employs the electron impact ionization of trapped atoms with a focussed electron probe.…

统计力学 · 物理学 2007-05-23 T. Gericke , C. Utfeld , N. Hommerstad , H. Ott

Plasma based acceleration is considered a promising concept for the next generation of linear electron-positron colliders. Despite the great progress achieved over last twenty years in laser technology, laser and beam driven particle…

等离子体物理 · 物理学 2023-11-21 S. S. Bulanov , C. Benedetti , D. Terzani , C. B. Schroeder , E. Esarey , T. Blackburn , M. Marklund

The characterization of the electronic structure and chemical states of gases, solids, and liquids can be effectively performed using ambient pressure X-ray photoelectron spectroscopy (AP-XPS). However, the acquisition of electronic and…

化学物理 · 物理学 2025-03-17 Yang Gu , Zhehao Qiu , Shui Lin , Yong Han , Hui Zhang , Zhi Liu , Jun Cai

Non-classical electron diffusion in crossed-field, low-temperature plasmas is measured experimentally. Laser-induced fluorescence and Thomson scattering are used to determine the inverse Hall parameter, a metric for cross-field transport,…

等离子体物理 · 物理学 2024-04-01 Parker J. Roberts , Benjamin A. Jorns

Ultrashort light pulses are ubiquitous in modern research, but the electromagnetic field of the optical cycles is usually not easy to obtain as a function of time. Field-resolved pulse characterization requires either a nonlinear-optical…

光学 · 物理学 2022-11-30 Yuya Morimoto , Bo-Han Chen , Peter Baum

The linear stability analysis of an optically thin plasma where a general reaction proceeds, including chemical relaxation time effects, is carried out . A fifth order dispersion equation (instead of the fourth order one resulting when such…

天体物理学 · 物理学 2007-05-23 Miguel H. Iba~nez S.

Relativistic electrons are easily generated by self-injection when an intense laser drives a wakefield in a plasma, giving rise to wide electron energy distributions. Several mechanisms involving additional laser beams or different gas…

加速器物理 · 物理学 2020-07-13 Brigitte Cros

Ion source modification is proposed for efficient production of ion beam and extending of operating Lifetime. Ionization efficiency of the Bernas type ion source has been improved by using a small anode-thin rod, oriented along the magnetic…

等离子体物理 · 物理学 2019-12-10 V Dudnikov , G Dudnikova , A Dudnikov

The metallic regime of the hydrogen plasma is studied by ab initio Molecular Dynamics simulations, for classical protons and fully degenerate electrons, in the strong coupling regime of the protons. The breakdown of linear screening…

mtrl-th · 物理学 2009-10-30 Jorge Kohanoff , Jean-Pierre Hansen

Experimentally measured characteristics of a kHz laser-driven Cu plasma X-ray source that was recently commissioned at ELI Beamlines facility are reported. The source can be driven either by an in-house developed high contrast sub-20 fs…

A new radiation sensor derived from plasma panel display technology is introduced. It has the capability to detect ionizing and non-ionizing radiation over a wide energy range and the potential for use in many applications. The principle of…

Photoelectron spectroscopy is a powerful method that provides insight into the quantum mechanical properties of a wide range of systems. The ionized electron wavefunction carries information on the structure of the bound orbital, the ionic…

This chapter describes the basic principles, design features and characteristics of microwave discharge ion sources. A suitable source for the production of intense beams for high-power accelerators must satisfy the requirements of high…

加速器物理 · 物理学 2014-11-04 L. Celona

We present a detailed analysis of the soft X-ray emission of 3C445 using an archival Chandra HETG spectrum. Highly-ionized H- and He-like Mg, Si and S lines, as well as a resolved low-ionized Si K$\alpha$ line, are detected in the high…

星系天体物理 · 物理学 2018-05-23 F. T. Dong , S. H. Shao , Y. Cheng , J. L. Zeng

Most bright sources of the radiation in hard x-ray and gamma--ray regions are undulator sources and Compton based ones. These sources are ultimate for production of polarized positrons necessary for future linear colliders ILC, CLIC. We…

加速器物理 · 物理学 2015-09-14 Eugene Bulyak , Nikolay Shul'ga

To expand on recent work, we introduce collisional terms in the analysis of the warm ion-electron, two-fluid equations for a homogeneous plasma at rest. Consequently, the plasma is now described by six variables: the magnetisation, the…

等离子体物理 · 物理学 2024-05-21 Joeri De Vadder , Jordi De Jonghe , Rony Keppens

The photon spectrum from free-electron laser (FEL) light sources offers valuable information in time-resolved experiments and machine optimization in the spectral and temporal domains. We have developed a compact single-shot photon…

A novel method for localization and estimation of compact sources of gamma radiation for Micro Aerial Vehicles (MAVs) is presented in this paper. The method is developed for a novel single-detector Compton camera, developed by the authors.…

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