Published January 14, 2003
| Version v1
Journal article
Acceleration of the chemical reaction of trapped Ca+ ions with H2O molecules by laser excitation
- 1. Department of Physics, Sophia University, 7-1 Kioicho, Chiyoda, Tokyo (Japan)
- 2. Atomic Physics Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama (Japan)
- 3. Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki (Japan)
- 4. Institute for Laser Science (ILS), University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo (Japan)
Description
The reactivity of laser-excited Ca+* ions in 3 2DJ (J = 3/2, 5/2) states with neutral H2O molecules was experimentally investigated. The reaction-product ions were sympathetically cooled by laser-cooled 40Ca+ ions and detected by laser-induced fluorescence mass spectroscopy. The reaction rate coefficient of Ca+*(DJ) + H2O → products was found to be 1.8(1) x 103 s-1 Pa-1 at an ion temperature of T=3.1(1)x103 K. The ion temperature dependence of the reaction rate coefficient was also measured for buffer-gas-cooled Ca+ ions
Availability note (English)
Available online at http://stacks.iop.org/0953-4075/36/33/b30104.pdf or at the Web site for the Journal of Physics. B, Atomic, Molecular and Optical Physics (ISSN 1361-6455) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0953-4075/36/33/b30104.pdf; http://www.iop.org/;
- PII
- S0953-4075(03)39479-9;
Publishing Information
- Journal Title
- Journal of Physics. B, Atomic, Molecular and Optical Physics
- Journal Volume
- 36
- Journal Issue
- 1
- Journal Page Range
- p. 33-46
- ISSN
- 0953-4075
- CODEN
- JPAPEH
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 34022990
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- CALCIUM IONS; EXCITATION; FLUORESCENCE SPECTROSCOPY; ION TEMPERATURE; ION-MOLECULE COLLISIONS; LASER RADIATION; MASS SPECTROSCOPY; REACTION KINETICS
- Descriptors DEC
- CHARGED PARTICLES; COLLISIONS; ELECTROMAGNETIC RADIATION; EMISSION SPECTROSCOPY; ENERGY-LEVEL TRANSITIONS; ION COLLISIONS; IONS; KINETICS; MOLECULE COLLISIONS; RADIATIONS; SPECTROSCOPY