Electron collisions with 4He2+ at the TSR

H. Buhr; H. B. Pedersen; S. Altevogt; V. M. Andrianarijaona; H. Kreckel; L. Lammich; S. Novotny; D. Strasser; J. Hoffmann; M. Lange; M. Lestinsky; B. Mendes; M. Motsch; O. Novotn; D. Schwalm; X. Urbain; D. Zajfman; A. Wolf

doi:10.1088/1742-6596/192/1/012013

Electron collisions with ⁴He₂⁺ at the TSR

H. Buhr^*, H. B. Pedersen, S. Altevogt, V. M. Andrianarijaona, H. Kreckel, L. Lammich, S. Novotny, D. Strasser, J. Hoffmann, M. Lange, M. Lestinsky, B. Mendes, M. Motsch, O. Novotn, D. Schwalm, X. Urbain, D. Zajfman, A. Wolf

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The dissociative recombination (DR) of ⁴He₂ ⁺ has been investigated at the heavy-ion storage ring TSR in Heidelberg. Rate coefficients were measured up to collision energies of 40 eV. Vibrational level populations were monitored using the Coulomb explosion imaging technique showing relaxation to the v 0 level (>95%) through collisions with cold electrons within 50s. Low-energy DR rate coefficients are derived for v 0, 1 and ≥2 which show a strong v-dependence. A low-energy super-elastic collision (SEC) rate coefficient of α^v10_SEC (E _d 0)1.8×10^-7cm³s^-1 was found.

Original language	American English
Article number	012013
Journal	Journal of Physics: Conference Series
Volume	192
DOIs	https://doi.org/10.1088/1742-6596/192/1/012013
State	Published - 2009
Externally published	Yes

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Buhr, H., Pedersen, H. B., Altevogt, S., Andrianarijaona, V. M., Kreckel, H., Lammich, L., Novotny, S., Strasser, D., Hoffmann, J., Lange, M., Lestinsky, M., Mendes, B., Motsch, M., Novotn, O., Schwalm, D., Urbain, X., Zajfman, D., & Wolf, A. (2009). Electron collisions with ⁴He₂⁺ at the TSR. Journal of Physics: Conference Series, 192, Article 012013. https://doi.org/10.1088/1742-6596/192/1/012013

@article{f2e98268707b45f6a6baa3b5a418e464,

title = "Electron collisions with 4He2+ at the TSR",

abstract = "The dissociative recombination (DR) of 4He2 + has been investigated at the heavy-ion storage ring TSR in Heidelberg. Rate coefficients were measured up to collision energies of 40 eV. Vibrational level populations were monitored using the Coulomb explosion imaging technique showing relaxation to the v 0 level (>95%) through collisions with cold electrons within 50s. Low-energy DR rate coefficients are derived for v 0, 1 and ≥2 which show a strong v-dependence. A low-energy super-elastic collision (SEC) rate coefficient of αv10SEC (E d 0)1.8×10-7cm3s-1 was found.",

author = "H. Buhr and Pedersen, {H. B.} and S. Altevogt and Andrianarijaona, {V. M.} and H. Kreckel and L. Lammich and S. Novotny and D. Strasser and J. Hoffmann and M. Lange and M. Lestinsky and B. Mendes and M. Motsch and O. Novotn and D. Schwalm and X. Urbain and D. Zajfman and A. Wolf",

year = "2009",

doi = "10.1088/1742-6596/192/1/012013",

language = "American English",

volume = "192",

journal = "Journal of Physics: Conference Series",

issn = "1742-6588",

publisher = "IOP Publishing Ltd.",

}

Buhr, H, Pedersen, HB, Altevogt, S, Andrianarijaona, VM, Kreckel, H, Lammich, L, Novotny, S, Strasser, D, Hoffmann, J, Lange, M, Lestinsky, M, Mendes, B, Motsch, M, Novotn, O, Schwalm, D, Urbain, X, Zajfman, D & Wolf, A 2009, 'Electron collisions with ⁴He₂⁺ at the TSR', Journal of Physics: Conference Series, vol. 192, 012013. https://doi.org/10.1088/1742-6596/192/1/012013

TY - JOUR

T1 - Electron collisions with 4He2+ at the TSR

AU - Buhr, H.

AU - Pedersen, H. B.

AU - Altevogt, S.

AU - Andrianarijaona, V. M.

AU - Kreckel, H.

AU - Lammich, L.

AU - Novotny, S.

AU - Strasser, D.

AU - Hoffmann, J.

AU - Lange, M.

AU - Lestinsky, M.

AU - Mendes, B.

AU - Motsch, M.

AU - Novotn, O.

AU - Schwalm, D.

AU - Urbain, X.

AU - Zajfman, D.

AU - Wolf, A.

PY - 2009

Y1 - 2009

N2 - The dissociative recombination (DR) of 4He2 + has been investigated at the heavy-ion storage ring TSR in Heidelberg. Rate coefficients were measured up to collision energies of 40 eV. Vibrational level populations were monitored using the Coulomb explosion imaging technique showing relaxation to the v 0 level (>95%) through collisions with cold electrons within 50s. Low-energy DR rate coefficients are derived for v 0, 1 and ≥2 which show a strong v-dependence. A low-energy super-elastic collision (SEC) rate coefficient of αv10SEC (E d 0)1.8×10-7cm3s-1 was found.

AB - The dissociative recombination (DR) of 4He2 + has been investigated at the heavy-ion storage ring TSR in Heidelberg. Rate coefficients were measured up to collision energies of 40 eV. Vibrational level populations were monitored using the Coulomb explosion imaging technique showing relaxation to the v 0 level (>95%) through collisions with cold electrons within 50s. Low-energy DR rate coefficients are derived for v 0, 1 and ≥2 which show a strong v-dependence. A low-energy super-elastic collision (SEC) rate coefficient of αv10SEC (E d 0)1.8×10-7cm3s-1 was found.

UR - http://www.scopus.com/inward/record.url?scp=73249145234&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/192/1/012013

DO - 10.1088/1742-6596/192/1/012013

M3 - Article

AN - SCOPUS:73249145234

SN - 1742-6588

VL - 192

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

M1 - 012013

ER -

Electron collisions with ⁴He₂⁺ at the TSR

Abstract

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