Roadmap on photonic, electronic and atomic collision physics: III. Heavy particles: with zero to relativistic speeds

Aumayr, F.; Ueda, Kiyoshi; Sokell, Emma; Schippers, S.; Sadeghpour, H. R.; Merkt, Frédéric; Gallagher, T. F.; Dunning, F. B.; Scheier, P.; Echt, Olof; Kirchner, Tom; Fritzsche, S.; Surzhykov, A.; Ma, Xiaofeng; Rivarola, R D; Fojón, O A; Tribedi, Lokesh C.; Lamour, Emily; López‐Urrutia, J. R. Crespo; Litvinov, Yu. A.; Shabaev, V. M.; Cederquist, H.; Zettergren, Henning; Schleberger, Marika; Wilhelm, R.; Azuma, T.; Boduch, P.; Schmidt, H. T.; Stöhlker, Thomas

doi:10.1088/1361-6455/ab26ea

Cited by 23 publications

(20 citation statements)

References 217 publications

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“…[13]). There is an enormous body of data based on fundamental studies of charge-and energy-transfer processes where a single isolated atomic system interacts (collides) once with another such system in vacuum [14]. A large fraction of these studies have been performed with positively charged ions at energies ranging from a few eV and up, while results on collisions with neutrals and anions in the same energy range are somewhat less abundant but still extensive.…”

Section: Introductionmentioning

confidence: 99%

Cryogenic merged-ion-beam experiments in DESIREE: Final-state-resolved mutual neutralization of Li+ and D−

et al. 2020

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We have developed an experimental technique to study charge-and energy-flow processes in sub-eV collisions between oppositely charged, internally cold, ions of atoms, molecules, and clusters. Two ion beams are stored in separate rings of the cryogenic ion-beam storage facility DESIREE, and merged in a common straight section where a set of biased drift tubes is used to control the center-of-mass collision energy locally in fine steps. Here, we present measurements on mutual neutralization between Li + and D − where a time-sensitive imaging-detector system is used to measure the three-dimensional distance between the neutral Li and D atoms as they reach the detector. This scheme allows for direct measurements of kinetic-energy releases, and here it reveals separate populations of the 3s state and the (3p + 3d) states in neutral Li while the D atom is left in its ground state 1s. The branching fraction of the 3s final state is measured to be 57.8 ± 0.7% at a center-of-mass collision energy of 78 ± 13 meV. The technique paves the way for studies of charge-, energy-, and mass-transfer reactions in single collisions involving molecular and cluster ions in well-defined quantum states.

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Section: Introductionmentioning

confidence: 99%

Cryogenic merged-ion-beam experiments in DESIREE: Final-state-resolved mutual neutralization of Li+ and D−

et al. 2020

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“…However, the online version of record will be different from this version once it has been copyedited and typeset. 2), deflection unit (3), ion-lift (4), lens system (5), irradiation chamber (6), vacuum lock (7), manipulator (8), ToF-SIMS ( 9), and ecximer laser (10).…”

Section: Methodsmentioning

confidence: 99%

“…FIG.1. Schematic view of the HICS setup showing the EBIS ion source (1), bending sector magnet (2), deflection unit (3), ion-lift (4), lens system (5), irradiation chamber (6), vacuum lock(7), manipulator (8), ToF-SIMS (9), and ecximer laser(10).…”

mentioning

confidence: 99%

Time-of-flight mass spectrometry of particle emission during irradiation with slow, highly charged ions

Skopinski

Ernst

Herder

et al. 2021

Review of Scientific Instruments

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We describe a setup for the analysis of secondary ions and neutrals emitted from solid surfaces and two-dimensional materials during irradiation with highly charged ions. The ultra-high-vacuum setup consists of an electron beam ion source to produce bunches of ions with various charge states q (e.g. Xe 1+ -Xe 46+ ) and thus potential energies, a deceleration/acceleration section to tune the kinetic energy of the ions in the range of 5 keV to 20 x q keV, a sample stage for laser-cleaning and positioning of freestanding as well as supported samples, a pulsed excimer laser for postionization of sputtered neutrals, and a reflectron type time-of-flight mass spectrometer enabling us to analyze mass and velocity distributions of the emitted particles. With our setup, contributions from potential and kinetic energy deposition can be studied independently of each other. Charge dependent experiments conducted at a constant kinetic energy show a clear threshold for the emission of secondary ions from SrTiO 3 . Data taken with the same projectile charge state, but at a different kinetic energy, reveals a difference in the ratio of emitted particles from MoS 2 . In addition, first results are presented, demonstrating how velocity distributions can be measured with the new setup.

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“…To our knowledge, no review exists covering all aspects of atomic physics research at storage rings. The reader is referred to proceedings of specialized conferences and special journal issues, like, e.g., [299]. In this work a brief summary is given of actual research activities, which are based on the presently approved experimental programs.…”

Section: Atomic Physics Experiments With Highly-charged Ionsmentioning

confidence: 99%

Heavy-ion storage rings and their use in precision experiments with highly charged ions

Steck

Litvinov

2020

Progress in Particle and Nuclear Physics

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Roadmap on photonic, electronic and atomic collision physics: III. Heavy particles: with zero to relativistic speeds

Cited by 23 publications

References 217 publications

Cryogenic merged-ion-beam experiments in DESIREE: Final-state-resolved mutual neutralization of Li+ and D−

Cryogenic merged-ion-beam experiments in DESIREE: Final-state-resolved mutual neutralization of Li+ and D−

Time-of-flight mass spectrometry of particle emission during irradiation with slow, highly charged ions

Heavy-ion storage rings and their use in precision experiments with highly charged ions

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