Velocity and Charge State Dependences of Molecular Dissociation Induced by Slow Multicharged Ions

Folkerts, H O; Hoekstra, Ronnie; Morgenstern, R.

doi:10.1103/physrevlett.77.3339

Cited by 53 publications

(35 citation statements)

References 18 publications

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“…Extensive studies of the ionization and dissociation of molecules have been carried out in previous studies by using various projectiles such as ions [1][2][3], photons [4][5][6][7], and electrons [8][9][10]. The main purposes of such studies are to investigate the various decay pathways and to clarify which parameters determine these decay pathways.…”

Section: Introductionmentioning

confidence: 99%

Formation of protons from dissociative ionization of methane induced by 54 eV electrons

Ren

et al. 2011

Phys. Rev. A

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The production mechanisms of protons in dissociation of methane by 54 eV electron impact is investigated using the reaction microscope. By measuring all three charged particles in the final state in triple coincidence, the energy deposited in the target is determined. It is found that the (2a 1 ) −1 (npt 2 ) 1 , (2a 1 ) −1 , (1t 2 ) −2 (3a 1 ) 1 , and (2a 1 ) −2 (3a 1 ) 1 states of the intermediate CH 4 + make the major contributions to the formation of protons at this incident energy. The decay of each state results in a different kinetic energy distribution of protons. Possible decay mechanisms of these states are analyzed.

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Section: Introductionmentioning

confidence: 99%

Formation of protons from dissociative ionization of methane induced by 54 eV electrons

Ren

et al. 2011

Phys. Rev. A

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“…The fragmentation dynamics can be investigated beyond the limit of pure Coulomb explosion models. In studies on CO, various excited molecular states were found to contribute and it was proven that predominantly valence electrons are removed without strong excitation of the molecule [7,8]. For fast HCI, Siegmann et al [9] also had to invoke the potential energy curves of excited states to explain the kinetic energy distributions of N 2 fragments observed after interaction with fast HCI.…”

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confidence: 96%

Charge Driven Fragmentation of Nucleobases

et al. 2003

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We studied multiple ionization of single nucleobases by means of slow highly charged ions (Xe(q+), q=5-25). The products of the subsequent fragmentation were studied using high resolution coincidence time-of-flight spectrometry. We observed a strong dependence of the fragment kinetic energies on the initial charge state of the intermediate parent ions as well as on the initial chemical environment of the respective fragment ions within the parent molecule. The data allow us to shed light on the charge distribution within the molecule as well as on the fragmentation dynamics of these intermediate size systems.

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“…This work is beyond the scope of the present review. The reader is referred to [295,296] and references therein for work concerning ion impact and to [297] and references therein for work concerning photon impact. Only a few studies so far have tried to relate the two steps, i.e.…”

Section: Electron Emission From Spatially Aligned Moleculesmentioning

confidence: 99%