Direct high-energy neutral-channel dissociative recombination of cold H[sub 3][sup +] in an ion storage ring

Journal Article · Mon Jan 25 04:00:00 EST 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.70.430· OSTI ID:7118952

Larsson, M; Danared, H; Mowat, J R; Sigray, P; Sundstroem, G; Brostroem, L; Filevich, A; Kaellberg, A; Mannervik, S; Rensfelt, K G; Datz, S ^[1]

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1. Department of Physics I, The Royal Institute of Technology, S-100 44 Stockholm (Sweden) Manne Siegbahn Institute of Physics, S-10405 Stockholm (Sweden) Department of Physics, North Carolina State University, Raleigh, North Carolina 27695-8202 (United States) Department of Physics, Comision Nacional de Energia Atomica TANDAR, Av. Libertador 8250, 1429 Buenos Aires (Argentina) Physics Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831 (United States)

The cross section for neutral-channel dissociative recombination of vibrationally cooled H[sub 3][sup +] at energies between 0.0025 and 30 eV has been measured by utilizing the electron cooler at the storage ring CRYRING. The molecular ions were stored at an energy of 32.6 MeV and phase-space cooled by the electron cooler for about 8 s prior to data taking. A peak in the cross section at 9.4 eV is interpreted as a direct adiabatic neutral-channel recombination through the [sup 2][ital A][sub 1] resonant state. The cross section below 1 eV is in rather good agreement with single-pass data.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 7118952
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 70:4; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
BEAM COOLING
CATIONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DATA
DISSOCIATION
ELECTRON COLLISIONS
ELECTRON-ION COLLISIONS
ENERGY
ENERGY LEVELS
EXCITED STATES
EXPERIMENTAL DATA
HYDROGEN IONS
INFORMATION
ION COLLISIONS
IONS
MATHEMATICAL SPACE
MOMENTUM COOLING
NUMERICAL DATA
PHASE SPACE
POTENTIAL ENERGY
RECOMBINATION
RESONANCE
RF SYSTEMS
SPACE
STOCHASTIC COOLING
STORAGE RINGS
VIBRATIONAL STATES