Cold Reactive Collisions between Laser-Cooled Ions and Velocity-Selected Neutral Molecules

Journal Article · Fri Feb 01 00:00:00 EST 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.043203· OSTI ID:21024656

Willitsch, Stefan; Bell, Martin T; Gingell, Alexander D; Procter, Simon R; Softley, Timothy P ^[1]

---

1. Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford OX1 3TA (United Kingdom)

We report a new experimental method to study reactive ion-molecule collisions at very low temperatures. A source of laser-cooled ions in a linear Paul trap has been combined with a quadrupole-guide velocity selector to investigate the reaction of Ca{sup +} with CH{sub 3}F at collision energies E{sub coll}/k{sub B}{>=}1 K with single-particle sensitivity. The technique represents a general approach to study reactive collisions between ions and polar molecules over a wide temperature range down to the cold regime.

• OSTI ID: 21024656
• Journal Information: Physical Review Letters, Vol. 100, Issue 4; Other Information: DOI: 10.1103/PhysRevLett.100.043203; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CALCIUM IONS
ION-MOLECULE COLLISIONS
LASERS
METHYL FLUORIDE
QUADRUPOLES
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0000-0013 K