A Measurement of the Dielectronic Recombination of He⁺ Ions [Book Chapter]

Conference · Sun Oct 06 00:00:00 EDT 1991 · Recombination of Atomic Ions

DOI:https://doi.org/10.1007/978-1-4615-3470-9_17· OSTI ID:10116741

Mowat, J. Richard ^[1]; Tanis, J. A. ^[2]; Haar, R. R. ^[2]; Forest, J. L. ^[2]; Ellison, T. ^[3]; Foster, C. ^[3]; Jacobs, W. ^[3]; Rinckel, T. ^[3]; Dittner, P. F. ^[4]; Graham, W. G. ^[5]; Clark, M. W. ^[6]; Schneider, D. E. ^[6]; Stockli, M. P. ^[7]

---

1. North Carolina State University, Raleigh, NC (United States)
2. Western Michigan Univ., Kalamazoo MI (United States)
3. Indiana Univ., Bloomington, IN (United States)
4. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
5. Queen's Univ., Belfast, Northern Ireland (United Kingdom)
6. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
7. Kansas State Univ., Manhattan, KS (United States)

The singly-charged helium atom is the lightest ion which can undergo dielectronic recombination (DR). Because of its small nuclear charge, the electron-electron interaction in helium is stronger relative to the electron-nucleus interaction than it is in other ions. This makes He⁺ an interesting challenge for theoretical analysis. The experiment reported here is the first attempt to measure DR in helium. It is being carried out at the Indiana University Cyclotron Facility Cooler Ring, an ion storage ring, where dielectronic recombination occurs as helium ion make a single pass through the electron cooler. The preliminary results are consistent with theoretical expectations that capture occurs primarily to states of principal quantum number n > 3.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB); National Science Foundation (NSF)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 10116741
• Report Number(s): CONF-9110313--4; ON: DE92006605
• Resource Type: Conference paper/presentation
• Conference Information: Journal Name: Recombination of Atomic Ions
• Country of Publication: United States
• Language: English

Related Subjects

664400
74 ATOMIC AND MOLECULAR PHYSICS
ELECTRON BEAMS
ELECTRON COOLING
EXPERIMENTALLY DERIVED INFORMATION ON ATOMIC AND MOLECULAR PROPERTIES
HELIUM IONS
IONIZATION
MEASURING METHODS
RECOMBINATION
SPACE CHARGE