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SphinX Workshop Wrocław 2007PP SphinX electronic delay times and priorities.

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Presentation on theme: "SphinX Workshop Wrocław 2007PP SphinX electronic delay times and priorities."— Presentation transcript:

1 SphinX Workshop Wrocław 2007PP SphinX electronic delay times and priorities

2 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

3 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

4 SphinX Workshop Wrocław 2007PP XR-100CR Preamp a) b) c) Preamp reset Detector events

5 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

6 SphinX Workshop Wrocław 2007PP Multichannel Pulse-height Analyzer (MCA) Control Shaped pulses Peak detector A/D Converter CC Hold capacitor discharge (reset) Shaped pulse (input) Hold pulse height Peak detector output Serial interface a) b)

7 SphinX Workshop Wrocław 2007PP Thanks for attention

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