The system design and characterization of a compact single-SDD (Silicon Drift Detector) module for X-ray and electron spectroscopy in a windowless, room-temperature, vacuum environment is presented. The measured SDD leakage current density at +22° C is only 31 pA/cm2. The module, characterized at room temperature with 55Fe X-rays, demonstrated state-of-the-art performance: an energy resolution of 136 eV FWHM at 5.9 keV has been obtained with 1 µs filter peaking time, and its count-rate capability has been tested up to 4.2 Mcps with a 32 ns filter peaking time while maintaining an energy resolution of less than 200 eV FWHM at 5.9 keV.
A Coin-Sized Detector for Room-Temperature X-Ray Photons and Electron Spectroscopy
Gugiatti, Matteo;Carminati, Marco;Fiorini, Carlo;Borghi, Giacomo;
2020-01-01
Abstract
The system design and characterization of a compact single-SDD (Silicon Drift Detector) module for X-ray and electron spectroscopy in a windowless, room-temperature, vacuum environment is presented. The measured SDD leakage current density at +22° C is only 31 pA/cm2. The module, characterized at room temperature with 55Fe X-rays, demonstrated state-of-the-art performance: an energy resolution of 136 eV FWHM at 5.9 keV has been obtained with 1 µs filter peaking time, and its count-rate capability has been tested up to 4.2 Mcps with a 32 ns filter peaking time while maintaining an energy resolution of less than 200 eV FWHM at 5.9 keV.| File | Dimensione | Formato | |
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