SphinX Workshop Wrocław 2007PP SphinX electronic delay times and priorities
SphinX Workshop Wrocław 2007PP Amptek X-ray Si PIN detector Amptek XR-100CR Preamp Linear Pulse-Shaping Amplifier Multichannel Pulse-height Analyzer (MCA) C Atmega2561 C Atmega2561 RAM 40KB RAM 40KB SphinX block diagram: Single spectrometer block Power supply - digital circuits (+5V) - analog circuits (+/- 12V) - High voltage (detectors bias) Power supply - digital circuits (+5V) - analog circuits (+/- 12V) - High voltage (detectors bias) SphinX-TESIS Interface SphinX-TESIS Interface Stepping motor control Stepping motor control Flash 256KB Flash 256KB TESIS SphinX electronics overview
SphinX Workshop Wrocław 2007PP X-ray detector Be Window (thickness: 1 mil) Temperature Sensor FET Thermoelectric Cooler Si-PIN Detector Area: 13 mm 2 Thickness: 500 m Mounting Stud TO-8 Package
SphinX Workshop Wrocław 2007PP XR-100CR Preamp a) b) c) Preamp reset Detector events
SphinX Workshop Wrocław 2007PP Pulse Shaping Amplifier Input signal Output shaped pulsea) Pileup Two events within the dead time b) Dead time caused by reset
SphinX Workshop Wrocław 2007PP Multichannel Pulse-height Analyzer (MCA) Control Shaped pulses Peak detector A/D Converter CC Hold capacitor discharge (reset) Shaped pulse (input) Hold pulse height Peak detector output Serial interface a) b)
SphinX Workshop Wrocław 2007PP Thanks for attention