SpAnTeX
Spectroscopic Analysis with Tender X-Rays
The SpAnTeX instrument is dedicated to in situ Spectroscopic Analysis with Tender X-rays in order to obtain detailed chemical composition information about solid/liquid interfaces for new, improved materials. Its molecular-level information about semiconductor/electrolyte interfaces should aid the rational design and optimization of the next generation of energy materials. Additionally, the wide pressure and photon energy range covered by the SpAnTeX instrument will enable investigations of solid/solid, solid/gas, liquid/vapor and liquid/liquid interfaces as well.
The instrument is located at the BElChem-DCM beamline which covers the tender X-ray energy range from approximately 2.4 to 10 keV with a double crystal monochromator containing a Si(111) crystal pair. Its source is the dipole bending magnet D4.2. The optical elements and layout of the beamline have been optimized to deliver a high photon flux over a broad energy range, in particular at energies up to 8 keV, with moderate spectral resolution. This helps to facilitate in-situ and operando experiments that are conducted at elevated gas pressures or in liquids.
Methods
Remote access
not possible
| Instrument data | |
|---|---|
| Phone (~49 30 8062-) | |
| Beam availability | 24h/d |
| Source | Dipole 4.2 |
| Monochromator | DCM |
| Energy range (at experiment) | 2.4 - 10 keV |
| Energy resolution | between 0.2 @ 2.4 keV and 1.3 @ 10 keV (according to simulations) |
| Flux | > 1011 photons/(s 0.3A 0.1%BW) for photon energies up to 8keV (according to simulations) |
| Polarisation | |
| Focus size (hor. x vert.) | 0.2 x 0.4 mm2 (according to simulations) |
| Temperature range | room temperature |
| Pressure range | up to 30 mbar gas pressure |
| Detector | SPECS Phoibos 150 NAP10kEV |
| Manipulators | Standard |
| Sample holder compatibility | |
| Additional equipment | |
| Additional information | Details beamline BElChem-DCM |
SpAnTeX is operated within the Berlin Joint Lab for Electrochemical Interfaces (BElChem) which is located at the BESSY II synchrotron in Berlin, Germany, and co-run by the Fritz-Haber-Institut, the Max-Planck-Institut of Chemical Energy Conversion and the Helmholtz-Zentrum Berlin. BElChem focuses on providing a molecular-level description of (photo)electrochemical interfaces that are of high relevance for solar fuel production and renewable energy storage.
The BElChem facility consists of two instruments in two separate hutches and an additional sample preparation/chemical lab. BElChem-PGM (plane grating monochromator) covers the soft X-ray energy range, whereas BElChem-DCM (a dipole magnet sourced beamline) with a double crystal monochromator (DCM) covers the tender X-ray energy range.