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Recently strong electric fields (up to 10^9 V/cm) have been discovered, which affect the neutrons moving in noncentrosymmetric crystals. Such fields allow new polarization phenomena in neutron diffraction and optics and provide, for…

High Energy Physics - Experiment · Physics 2007-05-23 V. V. Fedorov , V. V. Voronin

A source of high-energy photons, ions, and positrons can be attained with the interaction of ultra-intense femtosecond laser pulses with advanced nanostructured targets. We present and characterise a numerical model that mimics the foam…

An intense positron sources is a demanding element in the design of future lepton colliders. A crystal-based hybrid positron source could be an alternative to a more conventional scheme based on the electron conversion into positron in a…

Relativistic positron sources with high spin polarization have important applications in nuclear and particle physics and many frontier fields. However, it is challenging to produce dense polarized positrons. Here we present a simple and…

Plasma Physics · Physics 2024-05-22 Xing-Long Zhu , Wei-Yuan Liu , Tong-Pu Yu , Min Chen , Su-Ming Weng , Wei-Min Wang , Zheng-Ming Sheng

An electron-impact ion source based on photoelectron emission was developed for ionization of gases at pressures below 1e-4 mbar in an axial magnetic field in the order of 5 T. The ion source applies only DC fields, which makes it suitable…

Instrumentation and Detectors · Physics 2011-01-25 S. Lukic , B. Bornschein , G. Drexlin , F. Glück , O. Kazachenko , M. Schöppner , Ch. Weinheimer , M. C. R. Zoll

Neutrons serve as unique probes for exploring the microscopic structure of matter, with the performance of a neutron source fundamentally governing the depth of scientific exploration and the breadth of industrial applicability. To address…

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…

Plasma Physics · Physics 2023-11-21 S. S. Bulanov , C. Benedetti , D. Terzani , C. B. Schroeder , E. Esarey , T. Blackburn , M. Marklund

We present a new technique for observing low energy neutrinos with the aim of detecting the cosmic neutrino background using ion storage rings. Utilising high energy targets exploits the quadratic increase in the neutrino capture cross…

High Energy Physics - Phenomenology · Physics 2021-11-04 Martin Bauer , Jack D. Shergold

Neutrino telescopes are moving steadily toward the goal of detecting astrophysical neutrinos from the most powerful galactic and extragalactic sources. Here we describe analysis methods to search for high energy point-like neutrino sources…

Astrophysics · Physics 2009-06-23 Jim Braun , Jon Dumm , Francesco De Palma , Chad Finley , Albrecht Karle , Teresa Montaruli

The term beta-beam has been coined for the production of a pure beam of electron neutrinos or their antiparticles through the decay of radioactive ions circulating in a storage ring. This concept requires radioactive ions to be accelerated…

While magnetic confinement fusion (MCF) and inertial confinement fusion (ICF) remain the primary routes toward controlled fusion, progress is still constrained by energy loss, plasma instabilities, and the cost and complexity of large-scale…

Plasma Physics · Physics 2026-04-13 Yinjian Zhao , Zhe Liu , Qiang Sun , Qianhong Zhou , Guangrui Sun

The cyclotron designed for the IsoDAR neutrino source represents a paradigm shift in cyclotron performance -- a factor of 10 increase in beam current. This performance is required to develop a neutrino source of sufficient strength for…

High Energy Physics - Experiment · Physics 2022-03-16 Jose Alonso

We have commenced experiments with intense short pulses of ion beams on the Neutralized Drift Compression Experiment (NDCX-II) at Lawrence Berkeley National Laboratory, with 1-mm beam spot size within 2.5 ns full-width at half maximum. The…

The velocity of neutrons from a pulsed neutron source is well-defined as a function of their arrival time. Electromagnetic neutron accelerator/decelerator synchronized with the neutron time-of-flight is capable of selectively changing the…

Instrumentation and Detectors · Physics 2016-11-21 Masaaki Kitaguchi , Yoshihisa Iwashita , Hirohiko M. Shimizu

Proposals exist and efforts are under way to construct pulsed spallation ultra-cold neutron (UCN) sources at accelerator laboratories around the world. At the Paul Scherrer Institut (PSI), Switzerland, and at the Los Alamos National…

Nuclear Experiment · Physics 2007-05-23 Klaus Kirch

Generation of quasi-monoenergetic ion pulse by laser-driven acceleration is one of the hot topics in laser plasma physics. In this study, we present a new method for the \textit{In-situ} deposition of an ultra-thin D$_2$O layer on the…

The materials engineering data base relevant to fusion irradiation is poorly populated and it has long been recognized that a fusion spectrum neutron source will be required, the facility IFMIF being the present proposal. Re- evaluation of…

Instrumentation and Detectors · Physics 2014-07-23 E. Surrey , M. Porton , T. Davenne , D. Findlay , A. Letchford , J. Thomason , S. G. Roberts , J. Marrow , A. Seryi , B. Connolly , H. Owen

Controlling and measuring the concentration of para-D2 is an essential step toward realizing solid deuterium as an intense ultra-cold neutron (UCN) source. To this end, we implemented an experimental technique to convert para- to…

Nuclear Experiment · Physics 2010-04-27 C. -Y. Liu , S. K. Lamoreaux , A. Saunders , D. Smith , A. R. Young

The intense neutron source for development of fusion materials planned by international collaboration makes a new step to clarify the technical issues for realizing the 40 MeV, 250 mA deuteron beam facility. The baseline concept employs two…

Accelerator Physics · Physics 2007-05-23 M. Sugimoto , M. Kinsho , H. Takeuchi

It is known that the alignment of an high-energy e- beam with specific crystal directions leads to a significant increase of the coherent radiation emission. This enhancement can be exploited to create an intense photon source. An elective…