K-Alpha

Imaging & Analysis Facility Use Thermo Scientific K-Alpha is a fully integrated, monochromated small-spot X-ray Photoelectron Spectrometer (XPS) system. K-Alpha is designed for a multi-user environment and is the first XPS tool to deliver a fully automated workflow from sample entry to report generation. The latest revision of the K-Alpha platform features dramatically improved spectroscopic performance, delivering higher count rates, faster analysis times and improved chemical detectability. Analytical options now include a tilt module for ARXPS data collection and a recirculating inert-gas glove box for transfer of air-sensitive samples. Combining monochromated XPS performance with intelligent automation and intuitive control, K-Alpha is designed for a multi-user environment to meet the requirements of both experienced XPS analysts and newcomers to the technique. * Analyzer: 180° double focusing hemispherical analyzer with 128-channel detector * X-ray source: Al k-alpha micro-focused monochromator with variable spot size (30-400µm in 5µm steps) * Ion Gun: Energy range 100-3000eV * Charge Compensation: Dual beam source and ultra-low energy electron beam * Sample Handling: 4-axis sample stage (60 x 60mm sample area, 20mm maximum sample thickness) * Vacuum System: 2x 220 l/s turbo molecular pumps for entry & analysis chambers * Data-system: Avantage data system * Options: tilt module for ARXPS Laboratory for Integrated Science and Engineering © 2025 Harvard CNS. All rights reserved. Center for Nanoscale Systems *