SphinX Workshop Wrocław 2007 PP

SphinX electronic delay times and prioritiesSphinX electronic delay times and priorities

SphinX Workshop Wrocław 2007 PP

AmptekX-ray Si PIN

detector

AmptekXR-100CR

Preamp

LinearPulse-Shaping

Amplifier

MultichannelPulse-height

Analyzer(MCA)

CAtmega2561

RAM40KB

SphinX block diagram:

Single spectrometer block

Power supply- digital circuits (+5V)

- analog circuits (+/- 12V)- High voltage (detectors bias)

SphinX-TESISInterface

Stepping motorcontrol

Flash256KB

TESIS

SphinX electronics overviewSphinX electronics overview

SphinX Workshop Wrocław 2007 PP

X-ray detectorX-ray detector

Be Window(thickness: 1 mil)

Temperature SensorFET

Thermoelectric Cooler

Si-PIN DetectorArea: 13 mm2

Thickness: 500 m

Mounting Stud

TO-8 Package

SphinX Workshop Wrocław 2007 PP

XR-100CR PreampXR-100CR Preamp

a) b)

c)

Preampreset Detector events

SphinX Workshop Wrocław 2007 PP

Pulse Shaping AmplifierPulse Shaping Amplifier

Input signal

Output shaped pulsea)

Pileup

Two events within the dead timeb)

Dead time caused by reset

SphinX Workshop Wrocław 2007 PP

Multichannel Pulse-height Analyzer (MCA)Multichannel Pulse-height Analyzer (MCA)

Control

Shapedpulses Peak detector A/D

Converter C

Hold capacitordischarge (reset)Shaped

pulse(input) Hold pulse

height

Peak detectoroutput

Serialinterface

a)

b)

SphinX Workshop Wrocław 2007 PP

Thanks for attentionThanks for attention