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Related papers: An ultracold low emittance electron source

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High-brightness beams generated by particle sources based on advanced accelerator concepts have the potential to become an essential part of future accelerator technology. High-gradient accelerators can generate and rapidly accelerate…

The plasma-based acceleration is an encouraging technique to overcome the limits of the accelerating gradient in the conventional RF acceleration. A plasma accelerator is able to provide accelerating fields up to hundreds of $GeV/m$, paving…

We discuss the theory of cooling electrons in solid-state devices via ``evaporative emission.'' Our model is based on filtering electron subbands in a quantum-wire device. When incident electrons in a higher-energy subband scatter out of…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Thushari Jayasekera , Kieran Mullen , Michael A. Morrison

We present a method which delivers a continuous, high-density beam of slow and internally cold polar molecules. In our source, warm molecules are first cooled by collisions with a cryogenic helium buffer gas. Cold molecules are then…

Chemical Physics · Physics 2009-01-23 L. D. van Buuren , C. Sommer , M. Motsch , S. Pohle , M. Schenk , J. Bayerl , P. W. H. Pinkse , G. Rempe

Ultrashort and ultracold electron bunches created by near-threshold femtosecond photoionization of a laser-cooled gas hold great promise for single-shot ultrafast diffraction experiments. In previous publications the transverse beam quality…

Atomic Physics · Physics 2018-01-17 J. G. H. Franssen , J. M. Kromwijk , E. J. D. Vredenbregt , O. J. Luiten

We present a new method for probing the thermal electron content of the Galaxy by spectral analysis of background point sources in the absorption-only limit to the radiative transfer equation. In this limit, calculating the spectral index,…

High Energy Astrophysical Phenomena · Physics 2016-05-25 D. I. Jones , A. P. Igoshev , M. Haverkorn

We present diffraction patterns from micron-sized areas of mono-crystalline graphite obtained with an ultracold and ultrafast electron source. We show that high spatial coherence is manifest in the visibility of the patterns even for…

Accelerator Physics · Physics 2014-01-07 M. W. van Mourik , W. J. Engelen , E. J. D. Vredenbregt , O. J. Luiten

In this review, we discuss the impact of the development of lasers on ultracold atoms and molecules and their applications. After a brief historical review of laser cooling and Bose-Einstein condensation, we present important applications…

High peak and average power free-electron lasers (FELs) in the terahertz region (THz) require small diameter, low-emittance, and high voltage electron beams. This paper presents two 1.5-2 MV, 100-200 A, thermionic cathode electron source…

Accelerator Physics · Physics 2024-03-22 Richard B. True , Henry P. Freund , Michael V. Fazio , Patrick G. O'Shea

Next generation hard X-ray free electron lasers require electron beams with low transverse emittance. One proposal to achieve these low emittances is to exploit the eigen-emittance values of the beam. The eigen-emittances are invariant…

The usage of channelling radiation arising from a high energy electron beam traversing a crystal for the production of an intense low emittance muon beam is investigated. The optimal energy and divergence of the electron beam are computed…

Accelerator Physics · Physics 2019-12-11 Xavier Buffat

We present a novel electron injection scheme for plasma wakefield acceleration. The method is based on recently proposed technique of fast electron generation via laser-solid interaction: a femtosecond laser pulse with the energy of tens of…

Plasma Physics · Physics 2022-03-14 V. Khudiakov , A. Pukhov

Cooling of hadron beams is critically important in the next generation of hadron storage rings for delivery of unprecedented performance. One such application is the electron-ion collider presently under development in the US. The desire to…

We present the numerical simulations for an electron-beam-driven and loss-cone-driven electron-cyclotron maser (ECM) with different plasma parameters and different magnetic field strengths for a relatively small region and short time-scale…

Solar and Stellar Astrophysics · Physics 2015-06-04 S. Yu , J. G. Doyle , A. Kuznetsov , G. Hallinan , A. Antonova , A. L. MacKinnon , A. Golden

We report our studies on an intense source of cold cesium atoms based on a two-dimensional magneto-optical trap with independent axial cooling and pushing. The new-designed source, proposed as 2D-HP MOT, uses hollow laser beams for axial…

Atomic Physics · Physics 2017-07-07 J. Q. Huang , X. S. Yan , C. F. Wu , J. W. Zhang , Y. Y. Feng , L. J. Wang

Electron cooling that results when a bunch of electrons overlaps a bunch of ions , with both bunches moving at the same velocity, may be considered to be an intrabeam scattering process. The process is similar to the usual intrabeam…

Accelerator Physics · Physics 2007-05-23 George Parzen

We propose a method to generate a source of spin-polarized cold atoms which are continuously extracted and guided from a magneto-optical trap using an atom-diode effect. We show that it is possible to create a pipe-like potential by…

Atomic Physics · Physics 2013-03-15 Thomas Vanderbruggen , Morgan Mitchell

The explosion in attosecond technology has opened the gate to investigating many unexplored areas which require ultrahigh spatial and temporal resolution. In the area of nuclear physics, using gamma-rays with ultrahigh resolution in time…

Plasma Physics · Physics 2017-08-08 Jinqing Yu , Z. Najmudin , Ronghao Hu , T. Tajima , Haiyang Lu , Xueqing Yan

In this review we consider three important applications of lasers in high energy physics: gamma gamma, gamma electron colliders, laser cooling, positron production. These topics are actual now due to plans of construction linear e+e-, e-e-,…

High Energy Physics - Experiment · Physics 2007-05-23 Valery Telnov

A novel room-temperature ion source for the production of atomic ions in electron beam within wide ranges of electron energy and current density is developed. The device can operate both as conventional Electron Beam Ion Source/Trap…

Plasma Physics · Physics 2017-04-05 V. P. Ovsyannikov , A. V. Nefiodov , A. A. Levin