A5013313328- Mass Spectrometry Techniques and Applications
- Atomic and Molecular Physics
- Advanced Chemical Physics Studies
- Ion-surface interactions and analysis
- Spectroscopy and Laser Applications
- Atmospheric Ozone and Climate
- Electron and X-Ray Spectroscopy Techniques
- Fusion materials and technologies
- Analytical chemistry methods development
- Laser-induced spectroscopy and plasma
- Catalytic Processes in Materials Science
- Spectroscopy and Quantum Chemical Studies
- Metal and Thin Film Mechanics
- Molecular Junctions and Nanostructures
- Nuclear Materials and Properties
- Scientific Computing and Data Management
Universität Innsbruck
2018-2022
This paper presents an overview of the current status Virtual Atomic and Molecular Data Centre (VAMDC) e-infrastructure, including VAMDC-connected (or to be connected) databases, updates on latest technological development within infrastructure a presentation some application tools that make use VAMDC e-infrastructure. We analyse past 10 years operation, assess their impact both field atomic molecular (A&M) physics itself heterogeneous data management in international cooperation. The...
A linear cryogenic 16-pole wire ion trap has been developed and constructed for spectroscopy at temperatures below 4 K. The is temperature-variable, can be operated with different buffer gases, offers large optical access perpendicular to the beam direction. housing geometry enables temperature measurement during radio frequency operation. effective trapping potential of wire-based described compared conventional multipole designs. Furthermore, time-of-flight mass spectra multiple helium...
Vibrational spectra of protonated tryptophan were recorded by predissociation H2 messenger tags using cryogenic ion traps. We explore the issue induced spectral changes solvating TrpH+(H2) n with = 1-5 to obtain single photon vibrational TrpH+ and its partly deuterated isotopomer in region 800-4400 cm-1. Depending on number molecules, several conformational isomers associated multiple binding locations along two natural conformations found MS3IR2 hole burning method. Most probable positions...
The device described is the combination of two mass spectrometers, with a surface sample placed between them. Its aim to allow for detailed research on low-energy ion–surface interactions, involving and triggering chemistry. This task fulfilled by carefully chosen geometry: Projectile ions from an electron impact source are mass-per-charge selected using quadrupole. Such continuous bombardment allows good control condition. Species emerging collisions focused onto beam analyzed purpose-built...
Complexes of atomic gold with a variety ligands have been formed by passing helium nanodroplets (HNDs) through two pickup cells containing vapor and the another dopant, namely rare gas, diatomic molecule (H2, N2, O2, I2, P2), or various polyatomic molecules (H2O, CO2, SF6, C6H6, adamantane, imidazole, dicyclopentadiene, fullerene). The doped HNDs were irradiated electrons; ensuing cations identified in high-resolution mass spectrometer. Anions detected for benzene, fullerene. For most L,...
Our Surface-Time-Of-Flight (SurfTOF) tandem mass spectrometer apparatus has been employed in a comparative investigation of ion sputtering induced by mono-energetic D+ and He+ beams impinging on Be surface at 700 K with impact energies from 5 to 500 eV. Both chemically assisted (by below 50 eV) physical above were observed. Be+ was the dominant sputtered all energies. Chemically mechanisms are proposed for concomitant chemical Be+, Be2+ BeD+ ions low energies). Evidence also obtained BeO+...
Collisions of N+ and N2+ with C3 hydrocarbons, represented by a self assembled monolayer propanethiol on polcrystalline gold surface, were investigated experiments over the incident energy range between 5 eV 100 eV. For N+, formation HCN+ is observed at energies projectile ions as low 20 In case ions, yield increased above zero only about 50 This collision in laboratory frame corresponds to an activation 3 3.5 was large for most range, but decreased below may indicate very small threshold...
A new database and viewer for mass spectra resulting from collision processes is presented that follows the standards of Virtual Atomic Molecular Data Centre (VAMDC). focus was placed on machine read write access, as well ease use. In a browser-based viewer, all parameters related to given measurement can be shown. The program additionally enables direct comparison between two spectra, either by plotting them top each other or their difference identify subtle variations in data.