Test of predicted. Delta. n ge 1 L -shell dielectronic-recombination cross sections

Journal Article · Sun Oct 01 04:00:00 EDT 1989 · Physical Review (Section) A: General Physics; (USA)

DOI:https://doi.org/10.1103/PhysRevA.40.4085· OSTI ID:5400937

Bernstein, E M; Clark, M W; Tanis, J A; Woodland, W T ^[1]; Berkner, K H; Schlachter, A S; Stearns, J W ^[2]; DuBois, R D ^[3]; Graham, W G ^[4]; Morgan, T J ^[5]; others, and

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1. Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008 (US)
2. Lawrence Berkeley Laboratory, Berkeley, California 94720
3. Pacific Northwest Laboratory, Richland, Washington 99352
4. Department of Physics, Queen's University, Belfast, BT7 1NN, Northern Ireland
5. Department of Physics, Wesleyan University, Middletown, Connecticut 06457

The predicted charge-state dependence of dielectronic-recombination cross sections involving {Delta}{ital n}{gt}=1 {ital L}-shell excitation has been tested by measurements of resonant transfer and excitation (RTE) for {sub 41}Nb{sup {ital q}+}+H{sub 2} ({ital q}=28 to 32) collisions at 3.7 and 4.0 MeV/u. The measured RTE cross sections increase significantly with increasing charge state and thus disagree substantially with theoretical calculations that predict essentially equal cross sections for Nb{sup 29+}, Nb{sup 30+}, and Nb{sup 31+}. This disagreement is contrary to the good agreement previously found between theory and experiment for {ital K}-shell RTE.

• OSTI ID: 5400937
• Journal Information: Physical Review (Section) A: General Physics; (USA), Journal Name: Physical Review (Section) A: General Physics; (USA) Vol. 40:7; ISSN PLRAA; ISSN 0556-2791
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELECTRON COLLISIONS
ELECTRON TRANSFER
ELECTRON-ION COLLISIONS
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITATION
HYDROGEN
ION COLLISIONS
ION-MOLECULE COLLISIONS
IONS
L SHELL
MEV RANGE
MEV RANGE 100-1000
MOLECULE COLLISIONS
MULTICHARGED IONS
NIOBIUM IONS
NONMETALS
RECOMBINATION
RESONANCE
SIMULATION