Si(Li) Detectors

For SEMs

• Crystal: active area of 10 mm2 to 80 mm2
• Resolution: 132eV or better; 131eV is typical with 10 mm2 crystal
• Available with a guaranteed resolution of 129eV or better
• Peak to background ratio: 20000:1 or better
• Manual slide assembly

For TEMs

• Crystal: active area of 30 mm2 or 50 mm2 for improved solid angle
• Angled crystal design for high take-off angle
• Resolution: 136eV or better; 134eV is typical with 30 mm2 crystal
• Peak to background ratio: 20000:1
• Automatic motorized retraction mechanism to protect the detector from high x-ray and scattered electron fluxes 

Standard features on all Si(Li) detectors include

• Electronic restored FET
• Low-noise preamplifier
• Instrument-specific chamber interface flange
• 7.5 liter LN2 dewar (additional sizes available on request)
• Choice of window:
• AP3.3 for detection down to Beryllium
• DuraBeryllium™ for high-vacuum integrity and detection down to Sodium

Silicon Drift Detectors

• State-of-the-art drift technology
• LN2-free operation- Peltier cooled; no liquid coolant required
• Cool-down time of less than 5 minutes
• Resolution: better than 133eV; stable over a wide range of input count rates
• Available with resolution better than 129eV
• Throughput: capable of output rates exceeding 100,000 counts per second
• Light element detection down to Boron with quantification of Carbon
• Sensor: 10 or 30 mm2 active area
• Low-noise, high-rate preamplifier for high-count rate performance
• Tube diameter of less than 18 mm fits most EDS ports