Energy loss of heavy ions in a hydrogen discharge plasma

doi:10.1016/0168-9002(89)91129-7

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Volume 278, Issue 1, 15 May 1989, Pages 52-55

https://doi.org/10.1016/0168-9002(89)91129-7 Get rights and content

Abstract

The energy loss of heavy ions in a plasma environment was measured by a time-of-flight method (TOF). It was possible to determine the energy loss for s

References (14)

E. Festa et al.
Nucl. Instr. and Meth.
(1985)
N. Bohr
Philos. Mag.
(1913)
T.A. Mehlhorn
J. Appl. Phys.
(1981)
E. Nardi et al.
Phys. Rev. Lett.
(1982)
F.C. Young et al.
Phys. Rev. Lett.
(1982)
R. Bimbot
D.H.H. Hoffmann
Z. Phys. A
(1988)

There are more references available in the full text version of this article.

Cited by (33)

High energy density physics with intense ion beams
2016, Matter and Radiation at Extremes
Citation Excerpt :
Already at moderate temperature and density conditions, which are easily obtained in a discharge plasma, a state of almost fully ionization may be obtained for the duration on the order of microseconds. Later a dense Zpinch plasma was used to extend the measurements to higher density and higher temperature [48–50]. These experiments made it possible to compare the stopping power of hydrogen gas and fully ionized hydrogen plasma in one experimental set-up.
We review the development of High Energy Density Physics (HEDP) with intense heavy ion beams as a tool to induce extreme states of matter. The development of this field connects intimately to the advances in accelerator physics and technology. We will cover the generation of intense heavy ion beams starting from the ion source and follow the acceleration process and transport to the target. Intensity limitations and potential solutions to overcome these limitations are discussed. This is exemplified by citing examples from existing machines at the Gesellschaft für Schwerionenforschung (GSI-Darmstadt), the Institute of Theoretical and Experimental Physics in Moscow (ITEP-Moscow), and the Institute of Modern Physics (IMP-Lanzhou). Facilities under construction like the FAIR facility in Darmstadt and the High Intensity Accelerator Facility (HIAF), proposed for China will be included. Developments elsewhere are covered where it seems appropriate along with a report of recent results and achievements.
Influence of the gap-target configuration on the measured energy loss of C-ions in Ar-gas and -plasma
2007, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Plasma targets for measuring energy loss and charge state distribution of heavy ions in non-ideal Ar-plasmas $(Γ$ -parameters 0.55–1.5) have been developed and the interaction with several ion species, C, Ar, Xe at $5.9 MeV / u$ , was studied. Here the results for $5.9 MeV / u$ C-ions are presented which have been understood just recently by considering the gas dynamics in the target due to the special configuration with the gap interaction zone for the plasma, which can be also simulated by the VarJet code.
Inertial fusion energy issues of intense heavy ion and laser beams interacting with ionized matter studied at GSI-Darmstadt
2007, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
European activities on inertial fusion energy are coordinated by “keep in touch activities” of the European Fusion Programme coordinated by the European Commission. There is no general inertial fusion program in Europe. Instead, a number of activities relevant to inertial fusion are carried out by university groups and research centers. The Helmholtz-Research Center GSI-Darmstadt (Gesellschaft für Schwerionenforschung) operates accelerator facilities which provide the highest intensity for heavy ion beams and therefore key issues of ion beam driven fusion can be addressed. In addition to the accelerator facilities, one high-energy laser system is available (nhelix: nanosecond high-energy laser for ion experiments) and another one is under construction (PHELIX: petawatt high-energy laser for ion experiments). The heavy ion synchrotron facility, SIS18 (Schwer-Ionen-Synchrotron 18) recently delivered an intense uranium beam that deposits about 1 kJ/g specific energy in solid matter. Using this beam, experiments have been performed where solid Pb- and Ta-targets have been heated to the level of 1 eV. Experiments to study interaction mechanism of heavy ion beams with matter have been continued and are reported here.
Swift ion plasma interaction experiments at Erlangen
1998, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
A new target area has been set up at the Tandem accelerator in Erlangen to investigate the interaction of ions with plasmas. The Erlangen–Tandem accelerator provides medium- and light-ion beams (p, He, C, O, Cu) at moderate particle energies of 1–30 MeV. This energy range is especially useful to study the interaction of ions with ionized matter close to the maximum of energy loss in a plasma. Experiments using the variable energy of the Tandem provide for the first time energy-dependant stopping power data close to this maximum. First results have been obtained for a Cu beam at 4–10 MeV particle energy yielding a stopping power between 1310 and 1060 MeV/(mg/cm²) in a hydrogen plasma. The measured stopping power of Cu in cold hydrogen gas varies between 31 and 65 MeV/(mg/cm²) in this energy range.
Beam-target interaction and chamber propagation
1996, Fusion Engineering and Design
Experiments to study beam plasma interaction phenomena are carried out over a wide range of beam energy. The range extends from a few keV/μ up to and above GeV/μ. They provide detailed insight into interaction phenomena with ionized matter and are relevant to inertial fusion driven by intense ion beams. Chamber propagation and focusing of intense ion beams is a topic which is presently addressed by a number of groups. The present status of beam plasma interaction and chamber propagation physics is reviewed.
Interaction of heavy ions with plasmas
1996, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Intense heavy ion beams have been used in recent years to study the properties of matter under extreme conditions. The intense heavy ion beams of the radio frequency accelerator MAXILAC at GSI were used at ion energies of 45 keV/u to produce the first heavy ion driven plasma and to study the hydrodynamic reactions of this plasma. Similar experiments at 300 MeV/u ion energy using the heavy ion synchrotron SIS have now proven to be successful. The understanding and modelling of ion beam driven plasmas requires a precise knowledge of the stopping power in a plasma. Thus, in parallel to the ion beam driven plasmas, the stopping power of a fully ionized hydrogen plasma has been investigated experimentally testing an ion energy range of 45 keV/u to 10 MeV/u at plasma densities from 10¹⁶ to 10¹⁹ cm⁻³. The stoppping power experiments revealed the principle of new stopping behavior of ions in a plasma. In comparison to cold, non-ionized matter an increased stopping in hydrogen plasma up to a factor 35 has been observed.

View all citing articles on Scopus

View full text

Energy loss of heavy ions in a hydrogen discharge plasma

Abstract

Nucl. Instr. and Meth.

Philos. Mag.

J. Appl. Phys.

Phys. Rev. Lett.

Phys. Rev. Lett.

Z. Phys. A