A new Stark decelerator based surface scattering instrument for studying energy transfer at the gas-surface interface

Autor:	Fabian Grätz, Henrik Haak, Gerard Meijer, Alec M. Wodtke, Tim Schäfer, Roman J. V. Wagner, Daniel P. Engelhart
Rok vydání:	2015
Předmět:	Kelvin probe force microscope Materials science Molecular and Biophysics Scattering Thermal desorption spectroscopy chemistry.chemical_element Electron 7. Clean energy Ion chemistry Work function Experimental Molecular Physics Atomic physics Instrumentation Quadrupole mass analyzer Helium
Zdroj:	Review of Scientific Instruments Review of Scientific Instruments, 86, 4, pp. 043306 Review of Scientific Instruments, 86, 043306
ISSN:	1089-7623 0034-6748
Popis:	We report on the design and characterization of a new apparatus for performing quantum-state resolved surface scattering experiments. The apparatus combines optical state-specific molecule preparation with a compact hexapole and a Stark decelerator to prepare carrier gas-free pulses of quantum-state pure CO molecules with velocities controllable between 33 and 1000 m/s with extremely narrow velocity distributions. The ultrahigh vacuum surface scattering chamber includes homebuilt ion and electron detectors, a closed-cycle helium cooled single crystal sample mount capable of tuning surface temperature between 19 and 1337 K, a Kelvin probe for non-destructive work function measurements, a precision leak valve manifold for targeted adsorbate deposition, an inexpensive quadrupole mass spectrometer modified to perform high resolution temperature programmed desorption experiments and facilities to clean and characterize the surface.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5b0a0d3e0e869294f53feabe89bb3f3 https://pubmed.ncbi.nlm.nih.gov/25933854 Zobrazit plný text záznamu