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The NIO1 experiment, built and operated at Consorzio RFX, hosts an RF negative ion source, from which it is possible to produce a beam of maximum 130 mA in H- ions, accelerated up to 60 kV. For the preliminary tests of the extraction system…

等离子体物理 · 物理学 2022-11-09 M. Barbisan , B. Zaniol , M. Cavenago , R. Pasqualotto , G. Serianni , M. Zanini

The Cluster mission, launched in 2000, has produced a large database of electron flux intensity measurements in the Earths magnetosphere by the Research with Adaptive Particle Imaging Detector (RAPID)/ Imaging Electron Spectrometer (IES)…

The acceleration of super-heavy ions (SHIs) from plasmas driven by ultrashort (tens of femtoseconds) laser pulses is a challenging topic waiting for breakthrough. The detecting and controlling of the ionization process, and the adoption of…

The essay gives an overview on researches in the field of laser ion acceleration, focusing on two types of targets. There are many types of targets while they can all be divided into targets that apply single ion or multiple ions. Mixed…

等离子体物理 · 物理学 2020-09-01 Jiafei Lyu , Rui Yang , Yu Yang

The construction of the 60-MeV proton linac has started as a low-energy front of the KEK/JAERI Joint Project for a high-intensity proton accelerator facility at KEK. The accelerating frequency is 324 MHz. Five UHF klystrons are used as an…

加速器物理 · 物理学 2007-05-23 S. Fukuda , A. Anami , C. Kubota , M. Kawamura , S. Yamaguchi , M. Ono , H. Nakanishi , S. Miyake , M. Sakamoto

The IsoDAR cyclotron is a 60 MeV cyclotron designed to output 10mA of protons in order to be a driver for a neutrino experiment. Coupling the high flux generated by the IsoDAR system with a kiloton neutrino detector will provide sterile…

加速器物理 · 物理学 2022-12-22 Loyd Waites

Cornell's electron/positron storage ring (CESR) was modified over a series of accelerator shutdowns beginning in May 2008, which substantially improves its capability for research and development for particle accelerators. CESR's energy…

加速器物理 · 物理学 2015-09-02 M. G. Billing

Resonance ionization laser ion sources are efficient and element selective ion sources, which are particularly well suited for radioactive ion beam facilities. Using TRIUMF's off-line laser ion source test stand with a system of tunable…

原子物理 · 物理学 2020-01-15 R. Li , J. Lassen , F. Ames , P. Kunz , M. Mostamand , B. B. Reich , A. Teigelhöfer , H. Yan

Electrochemical impedance spectroscopy (EIS) is the most informative diagnostic for lithium-ion batteries: its frequency-resolved spectra decompose cell behavior into distinct electrochemical processes, revealing mechanism-specific…

系统与控制 · 电气工程与系统科学 2026-05-18 Shafayeth Jamil , Rehan Kapadia

The positron source is an essential component of the International Linear Collider (ILC) and is an area that poses some design challenges. One consideration is the material for the target, where the 1014 positrons per second for the ILC are…

加速器物理 · 物理学 2023-08-31 Tim Lengler , Dieter Lott , Gudrid Moortgat-Pick , Sabine Riemann

We propose a new concept of an electron source for ultrafast electron diffraction with sub-10~fs temporal resolution. Electrons are generated in a laser-plasma accelerator, able to deliver femtosecond electron bunches at 5 MeV energy with…

加速器物理 · 物理学 2016-04-20 J. Faure , B. van der Geer , B. Beaurepaire , G. Gallé , A. Vernier , A. Lifschitz

The maximum energy loss (Bragg peak) located near the end of range is a characteristic feature of ion stopping in matter, which generates an acoustic pulse, if ions are deposited into a medium in adequately short bunches. This so-called…

Ion energy distributions have been determined at the rf-bias electrode in an inductively-coupled acetylene-argon plasma for various substrate bias voltages and frequencies under conditions suitable for film deposition. These are compared…

等离子体物理 · 物理学 2008-11-27 A. Baby , C. M. O. Mahony , P. Lemoine , P. D. Maguire

One of the main results of the ATIC (Advanced Thin Ionization Calorimeter) experiment is a collection of energy spectra of abundant cosmic-ray nuclei: protons, He, C, O, Ne, Mg, Si, Fe measured in terms of energy per particle in the energy…

高能天体物理现象 · 物理学 2017-08-01 A. D. Panov , N. V. Sokolskaya , V. I. Zatsepin

As the main $H^{-}$ ion source for the accelerator complex, magnetron ion sources have been used at Fermilab since the 1970s. At the offline test stand, new R&D is carried out to develop and upgrade the present magnetron-type sources of…

加速器物理 · 物理学 2018-10-17 A. Sosa , D. S. Bollinger , P. R. Karns , C. Y. Tan

Laser wakefield acceleration permits the generation of ultra-short, high-brightness relativistic electron beams on a millimeter scale. While those features are of interest for many applications, the source remains constraint by the poor…

Using a kilojoule class laser, we demonstrate for the first time that high-contrast picosecond pulses are advantageous for ion acceleration. We show that a laser pulse with optimum duration and a large focal spot accelerates electrons…

A new, maximum proton energy, $e$, scaling law with the laser pulse energy, $E_L$ has been derived from the results of 3D particle-in-cell (PIC) simulations. Utilizing numerical modelling, protons are accelerated during interactions of the…

等离子体物理 · 物理学 2015-06-22 A. V. Brantov , E. A. Govras , V. Yu. Bychenkov , W. Rozmus