[en] This report lists the atomic physics experiments that are currently in progress at Argonne Tandem-Linear Accelerator System (ATLAS); future experiments that are being planned for the facility are described. Finally, the program of atomic physics experiments being planned for the ECR ion source is described

[en] A brief overview of synchrotron storage rings for heavy ions, which are presently under construction in different accelerator laboratories is given. Ions ranging from protons up to uranium ions at MeV/nucleon energies will be injected into these rings using multiturn injection from the accelerators available or being built in these laboratories. After injection, it is planned to cool the phase space distribution of the ions by merging them with cold electron beams or laser beams, or by using stochastic cooling. Some atomic physics experiments planned for these rings are presented. 35 refs

[en] Heavy ion accelerators are the most flexible and readily accessible sources of highly charged ions. These having only one or two remaining electrons have spectra whose accurate measurement is of considerable theoretical significance. Certain features of ion production by accelerators tend to limit the accuracy which can be realized in measurement of these spectra. This report aims to provide background about spectroscopic limitations and discuss how accelerator operations may be selected to permit attaining intrinsically limited data

[en] Recent studies of ₁₆S¹³⁺ + He collisions between 2.5 and 200 MeV, which were made using the accel-decel technique with the Brookhaven National Laboratory coupled MP tandem Van de Graaff accelerators, are discussed. Cross sections were measured for single electron-capture and -loss as well as K x rays correlated to electron-capture. Other planned ion-atom collision experiments requiring accel-decel are also presented

[en] We have begun a research program, finally aiming at high-resolution laser spectroscopy of slow, highly-charged ions. The first phase of the program was devoted to the development of the Stanford Recoil Ion Source to produce the HQLE ions. During the second stage we have been studying the population of Rydberg levels by electron capture processes using wavelength spectra and polarization measurements. Emission spectra in the visible and near ultraviolet have been observed for transitions between Rydberg states of highly charged neon ions (Ne/sup q⁺/ with q = 10 to 5), following electron capture from Na. Structure appears in those spectra for which the incoming ions carry L-shell core electrons. The optical emission cross sections are much smaller for these ions, and the radiation is significantly depolarized relative to ions whose transitions are seen as structureless. These effects are attributed to the inhibition of Stark mixing by core interactions

[en] This paper presents a discussion of QED. QED effects, as applied to atomic physics, are defined. The hyperfine splitting of muonium is discussed. Lamb shifts in hydrogen and large Z one-electron atoms are also explored. Many-body effects that can be investigated in two and three or more electron systems are discussed

[en] The Argonne tandem linac accelerator system (ATLAS) is a heavy-ion accelerator consisting of a superconducting linear accelerator injected by a 9 MV tandem electrostatic machine. The linac consists of two sections, each providing roughly 20 MV of effective accelerating potential. Performance of ATLAS is limited in two important respects by the electrostatic injector. The beam intensity is smaller than desired by some users, and ions in the upper half of the periodic table cannot be obtained from the tandem. The mass limitation results from the requirement of foil stripping in the high-voltage terminal of the existing tandem, the short lifetime of stripping foils for the heavier ions, and the voltage of the present machine. This paper describes a project currently underway to replace the tandem electrostatic accelerator with a new injector system. This system will consist of a positive-ion source on a 350 kV platform, and a very-low-velocity superconducting linac. The ultimate goal of the project is to provide an injector system which will allow ATLAS to accelerate uranium ions, and which will provide beam quality at least as good as obtained from the tandem

[en] This paper describes the planning and procedures used to fund and construct CRYEBIS and LINAC research facilities at Kansas State University. A budget for the lab is presented. Drawings of the equipment layout are included. The computer systems associated with the ion sources and experimental areas are given

[en] Over the past twenty years, a number of sources of multiply charged ions have been developed for nuclear particle accelerators. Two of these, the Electron Cyclotron Resonance Ion Source (ECRIS) and the Electron Beam Ion Source (EBIS) are, and probably will remain for some time, the most convenient sources of beams of low energy, highly charged ions. They are finding increasing use in atomic physics and with either one or the other, it is possible, in principle, to obtain ions of almost any element. The ECRIS can generate intense beams of highly charged low to medium Z elements, while the EBIS has produced the highest extractable charge state of any source, in one case Xe⁵²⁺ has been obtained. This paper describes the principles behind the machines and their uses

[en] The ATLAS accelerator facility provides beams of heavy ions in the mass range 7 ≤ A < 120 for research in nuclear and atomic physics. The facility consists of an electrostatic tandem injector and an independently-phased superconducting resonator linac. The system can be operated in a variety of model including deacceleration of beams which have been stripped to highly-charged states for atomic physics. This paper describes the ATLAS facility in detail and discusses the deacceleration mode for some specific cases