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Si(Li) detectors can be made with thicknesses up to 5 mm, which means they have a much higher stopping power than SDD's (max. 500 µm) and can be used up to higher energy x-rays (see graph below). Compared to germanium, however, silicon has a lower stopping power for the same detector thickness.
Our Si(Li) detector converts incoming X-rays into electron-hole pairs at a rate of one pair for each 3.8 eV of initial energy. The crystal is thick enough to capture virtually 100% of the X-rays in the energy range of interest. The actual quantum efficiency vs. energy may be calculated from X-ray absorption data. Geometry:
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traditional Si(Li) type detectors has proportionately decreased so that the SDD is now the detector of choice for most EDS applications. Recent advances in SDD design means that the latest generation of these detectors not only offer all the advantages of being liquid nitrogen-free and excellent energy resolution
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Oct 9, 2019 · The GAPS Si(Li) detectors will form the first large-area, relatively high-temperature Si(Li) detector system with sensitivity to X-rays to operate at high altitude. These 10 cm-diameter, 2.5 mm-thick, 4- or 8-strip detectors provide the active area, X-ray absorption efficiency, energy resolution, and particle tracking capability necessary for ...
Aug 22, 2022 · Si(Li) detector type: SiLi-LN2-200-5 or SiLi-LN2-500-5 Silicon Lithium Si(Li) | Silicon Lithium drifted detectors Si(Li) for Charged Particles Spectroscopy Reference for SiLi-LN2 Active Area [mm²] Active Thickness [mm] FWHM electron at 624 keV [keV] FWHMX-ray at 5.9 keV [eV] SiLi-LN2-200-5 200 5 2.2 SiLi-LN2-500-5 500 5 2.2 SiLi-LN2-500-5 w ...
The lithium-drifted silicon [Si(Li)] detectors that were newly developed for the General AntiParticle Spectrometer (GAPS) experiment features a large sensitive Potential and Application of Large-area Si(Li) Detectors developed for the GAPS Project | IEEE Conference Publication | IEEE Xplore
