Subshell Resolved Measurements of Single Electron Capture in Slow Ne7+-Helium Collisions

Fischer, Daniel; Feuerstein, B.; Moshammer, R.; López‐Urrutia, J. R. Crespo; Draganić, Ilija; Lörch, H; Perumal, A. N.; Ullrich, J.; DuBois, R. D.

doi:10.1007/978-94-007-0946-1_28

Cited by 14 publications

(31 citation statements)

References 6 publications

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“…Ali et al (1992), Mergel et al (1995), Fischer et al (2002)) or for reactions where ∑ = ⊥ n i f ei P 1 is small compared to the heavy particle momenta (i.e. at small…”

Section: Fast Ion-atom Collisionsmentioning

confidence: 99%

Recoil-ion and electron momentum spectroscopy: reaction-microscopes

et al. 2003

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Recoil-ion and electron momentum spectroscopy is a rapidly developing technique that allows one to measure the vector momenta of several ions and electrons resulting from atomic or molecular fragmentation. In a unique combination, large solid angles close to π Microccopes -the "bubble chambers of atomic physics" -mark the decisive step forward to investigate many-particle quantum-dynamics occurring when atomic and molecular systems or even surfaces and solids are exposed to time-dependent external electromagnetic fields.The present review concentrates on just these latest technical developments and on at least four new classes of fragmentation experiments that have emerged within about the last five years. First, multi-dimensional images in momentum space brought unprecedented information on the dynamics of single-photon induced fragmentation of fixed-in-space molecules and on their structure. Second, a break-through in the investigation of highintensity short-pulse laser induced fragmentation of atoms and molecules has been achieved by using Reaction Microccopes. Third, for electron and ion-impact, the investigation of twoelectron reactions has matured to a state such that first fully differential cross sections (FDCS) are reported. Forth, comprehensive sets of FDCS for single ionisation of atoms by ion-impact, the most basic atomic fragmentation reaction, brought new insight, a couple of surprises and unexpected challenges to theory at keV to GeV collision energies. In addition, a brief summary on the kinematics is provided at the beginning. Finally, the rich future potential of the method is shortly envisaged.2

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“…Ali et al (1992), Mergel et al (1995), Fischer et al (2002)) or for reactions where ∑ = ⊥ n i f ei P 1 is small compared to the heavy particle momenta (i.e. at small…”

Section: Fast Ion-atom Collisionsmentioning

confidence: 99%

Recoil-ion and electron momentum spectroscopy: reaction-microscopes

et al. 2003

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“…In our code we use the so- C. Estimate of the residue in (1) We note that the value Q n satisfies an inequality −2.403 < Q n ≤ −0.403 for any n ≥ 1.…”

Section: B 9d Integrationmentioning

confidence: 99%

“…First, it can be used as a tool for spectroscopy [1]. Energy gain spectroscopy and the related experiments in inverse kinematics exploit the recoil ion longitudinal momentum for Q-value determination (change in the electron binding energies).…”

Section: Introductionmentioning

confidence: 99%

“…Especially at higher impact energies E p > 100 keV/u, where the final electronic state determination in experiments is challenging or often impossible, the influence of excitation has not been investigated [20][21][22][23]. Projectile scattering angle distributions, which are final state selective, are rather rare [1,24,[26][27][28][29][30][31][32]. All these measurements were only possible due to the development of a modern momentum imaging technique, cold target recoil ion momentum spectroscopy (COLTRIMS) combined with optimized threedimensional focusing ion optics, which achieves longitudinal momentum resolution <0.04 a.u.…”

Section: Introductionmentioning

confidence: 99%

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Transfer excitation reactions in fast proton-helium collisions

et al. 2014

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Continuing previous work, we have measured the projectile scattering-angle dependency for transfer excitation of fast protons (300-1200 keV/u) colliding with helium (p+He → H + He + * ).Our high-resolution fully differential data are accompanied by calculations, performed in the planewave first Born approximation and the eikonal wave Born approximation. Experimentally, we find a deep minimum in the differential cross section around 0.5 mrad. The comparison with our calculations shows that describing the scattering-angle dependence of transfer excitation in fast collisions requires us to go beyond the first Born approximation and in addition to use the initial state-wave function, which contains some degree of angular correlations. * Electronic address: schoeffler@atom.uni-frankfurt.de

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“…The Heidelberg EBIT [2,3] has been designed as a combination of ion trap and ion source, employing a magnetically compressed beam of electrons to both confine and ionize the desired species within the trap. The resulting highly charged ions can then be observed through x-ray, UV, and visible spectroscopy, or extracted as an ion beam and delivered to an external experimental station for cold target recoil ion momentum spectroscopy (COLTRIMS) [4,5].…”

Section: Introductionmentioning

confidence: 99%

Tests of a laser ion source at the Heidelberg electron beam ion trap

Миронов¹,

Trinczek²,

Werdich³

et al. 2003

Nuclear Instruments and Methods in Physics Research Section B:

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A laser ion source (LIS) has been designed and successfully tested for loading the The ion beam is transported into the EBIT, decelerated and captured within it by switching the trapping electrode potentials. The electron beam further ionizes the trapped ions to the desired highly charged states. The experimental setup is described together with the source parameters measured for different target materials. X-ray spectra of up to He-like highly charged ions (Cu, Mo, Pb, Al, and Ge) produced in the EBIT after injection from the LIS have been measured. The reliability and convenience of this method allows the use of the LIS to produce highly charged ions of both insulating and conducting solid elements with an EBIT as needed for different experiments.

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Subshell Resolved Measurements of Single Electron Capture in Slow Ne7+-Helium Collisions

Cited by 14 publications

References 6 publications

Recoil-ion and electron momentum spectroscopy: reaction-microscopes

Recoil-ion and electron momentum spectroscopy: reaction-microscopes

Transfer excitation reactions in fast proton-helium collisions

Tests of a laser ion source at the Heidelberg electron beam ion trap

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