Berlin 2001 – wissenschaftliches Programm

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A: Atomphysik

A 12: Posters Thursday (Ion/Atom/Molecule/Surface Scattering)

A 12.33: Poster

Donnerstag, 5. April 2001, 12:30–15:00, AT3

Reactive Scattering of Sr with ICl — •Axel Woelke and Hansjürgen Loesch — Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany

Using a molecular-beam-apparatus we scattered a Strontium beam with a Iodine chloride (ICL) beam so as to observe the chemiluminescence signal with a photomultiplier. By seeded-beam-technique the collision energy was varied over a wide range. By resolving the chemiluminescence signal in a spectrometer we identified the processes as:

Sr + ICl —→ SrCl   A²Π + I    ⇒    SrCl   A²Π —→ SrCl   X²Σ⁺

Sr + ICl —→ SrCl   B²Σ + I    ⇒    SrCl   B²Σ —→ SrCl   X²Σ⁺

Other energetically allowed processes could not be detected. The simulation of the spectra may give valuable information about the reactive processes.