7 research outputs found
Electron correlations in the antiproton energy-loss distribution in He
We present ab initio calculations of the electronic differential energy-transfer cross sections for antiprotons with energies between 3 keV and 1 MeV interacting with helium. By comparison with simulations employing the mean-field description based on the single-active electron approximation we are able to identify electron correlation effects in the stopping and straggling cross sections. Most remarkably, we find that straggling exceeds the celebrated Bohr straggling limit when correlated shake-up processes are included.The present paper was supported by Grants No. FWF-SFB049 (Nextlite), No. FWF-SFB041 (VICOM), No. WWTF MA14-002, Doctoral College Grant No. FWF-W1243
(Solids4Function), by the National Research, Development and Innovation Office (NKFIH) Grant No. KH 126886, and by the high performance computing resources
of the Babeş-Bolyai University. J.F. acknowledges funding from the European Research Council under Grant No. ERC-2016-STG-714870 and by the Ministerio de Economía y
Competitividad (Spain) through a Ramón y Cajal grant. X.- M.T. was supported by a Grants-in-Aid for Scientific Research (Grant No. JP16K05495) from the Japan Society for the Promotion of Scienc
Visible, EUV, and X-ray Spectroscopy at the NIST EBIT Facility
After a brief introduction to the NIST EBIT facility, we present the results
of three different types of experiments that have been carried out there
recently: EUV and visible spectroscopy in support of the microelectronics
industry, laboratory astrophysics using an x-ray microcalorimeter, and charge
exchange studies using extracted beams of highly charged ions.Comment: 10 page
Atomic data for integrated tokamak modelling – Fermi-shuttle type ionization as a possible source of high energy electrons
Optimization of particle fluence in micromachining of CR-39
10.1016/j.nimb.2005.01.087Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms2311-4384-388NIMB