Enhancement of low energy electron-ion recombination in a magnetic field: Influence of transient field effects

Maria Hörndl, Shuhei Yoshida, K. Tőkési, Joachim Burgdörfer

Research output: Article

2 Citations (Scopus)

Abstract

The experimentally observed enhancement of electron-ion recombination at low relative energies is still a widely open problem. During the merging of an electron and an ion beam in the electron cooler of the storage ring a transient motional electric field is present in the rest frame of the ion which, in turn, may open an additional pathway for free-bound transitions of electrons. We present simulations performed for the toroidal merging geometry of the TSR in Heidelberg. Very high Rydberg states, typically n ≥ 400, are found to be populated during the merging process. Radiative stabilization of these Rydberg states inside the solenoid can contribute to the observed enhancement.

Original languageEnglish
Pages (from-to)290-295
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume235
Issue number1-4
DOIs
Publication statusPublished - júl. 2005

Fingerprint

electron-ion recombination
Rydberg states
Merging
Ions
Magnetic fields
Electrons
augmentation
magnetic fields
electrons
solenoids
coolers
energy
Storage rings
Solenoids
Electron transitions
stabilization
ion beams
Ion beams
electric fields
Stabilization

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Instrumentation
  • Surfaces and Interfaces

Cite this

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abstract = "The experimentally observed enhancement of electron-ion recombination at low relative energies is still a widely open problem. During the merging of an electron and an ion beam in the electron cooler of the storage ring a transient motional electric field is present in the rest frame of the ion which, in turn, may open an additional pathway for free-bound transitions of electrons. We present simulations performed for the toroidal merging geometry of the TSR in Heidelberg. Very high Rydberg states, typically n ≥ 400, are found to be populated during the merging process. Radiative stabilization of these Rydberg states inside the solenoid can contribute to the observed enhancement.",
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TY - JOUR

T1 - Enhancement of low energy electron-ion recombination in a magnetic field

T2 - Influence of transient field effects

AU - Hörndl, Maria

AU - Yoshida, Shuhei

AU - Tőkési, K.

AU - Burgdörfer, Joachim

PY - 2005/7

Y1 - 2005/7

N2 - The experimentally observed enhancement of electron-ion recombination at low relative energies is still a widely open problem. During the merging of an electron and an ion beam in the electron cooler of the storage ring a transient motional electric field is present in the rest frame of the ion which, in turn, may open an additional pathway for free-bound transitions of electrons. We present simulations performed for the toroidal merging geometry of the TSR in Heidelberg. Very high Rydberg states, typically n ≥ 400, are found to be populated during the merging process. Radiative stabilization of these Rydberg states inside the solenoid can contribute to the observed enhancement.

AB - The experimentally observed enhancement of electron-ion recombination at low relative energies is still a widely open problem. During the merging of an electron and an ion beam in the electron cooler of the storage ring a transient motional electric field is present in the rest frame of the ion which, in turn, may open an additional pathway for free-bound transitions of electrons. We present simulations performed for the toroidal merging geometry of the TSR in Heidelberg. Very high Rydberg states, typically n ≥ 400, are found to be populated during the merging process. Radiative stabilization of these Rydberg states inside the solenoid can contribute to the observed enhancement.

KW - Beam merging

KW - CTMC

KW - Electron cooler

KW - Radiative recombination

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JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

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