Experimental apparatus for production, cooling, and storing multiply charged ions for charge-transfer measurements

Journal Article · Sun Jul 01 04:00:00 EDT 1990 · Review of Scientific Instruments; (USA)

DOI:https://doi.org/10.1063/1.1141118· OSTI ID:6745715

Kwong, V H.S.; Gibbons, T T; Fang, Z; Jiang, J; Knocke, H; Jiang, Y; Ruger, B; Huang, S; Braganza, E; Clark, W ^[1]; Gardner, L D ^[2]

---

1. Department of Physics, University of Nevada, Las Vegas, 4505 Maryland Parkway, Las Vegas, Nevada 89154 (USA)
2. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA (USA)

A novel method is described that combines the production of ions by laser ablation with an ion-trap technique for the measurement of thermal-energy charge-transfer rates of multiply charged ions and neutrals. The charge-transfer rate is determined by measuring the rate of loss of stored ions from the trap. Verification of the calibration of the apparatus is demonstrated through investigation of charge transfer of N{sub 2} and N{sup 2+}, which has been studied by another group. We also have made the first measurement on the thermal-energy charge-transfer coefficient of Ar and W{sup 2+}. The rate coefficient is 0.99(0.22){times}10{sup {minus}11} cm{sup 3} s{sup {minus}1}.

• OSTI ID: 6745715
• Journal Information: Review of Scientific Instruments; (USA), Journal Name: Review of Scientific Instruments; (USA) Vol. 61:7; ISSN RSINA; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ARGON
CHARGE EXCHANGE
CHARGED PARTICLES
CHEMICAL REACTION KINETICS
COOLING
ELEMENTS
FLUIDS
GASES
IONIZATION
IONS
KINETICS
LASER-PRODUCED PLASMA
MULTICHARGED IONS
NITROGEN
NITROGEN IONS
NONMETALS
PLASMA
RARE GASES
REACTION KINETICS
TRAPPING
TUNGSTEN IONS