Description
The X-PIPS™ Detector is a spectroscopy subsystem designed for sensitivity to X-rays and low-energy gamma rays. It includes a hermetically-sealed silicon detector, low-noise FET assembly, Peltier cooler, reset type preamplifier, HV bias supply, and temperature controller. The system ensures stable operation with a fixed temperature regulation and features a 25 µm thick Beryllium entrance window.

Specifications
Performance
Gain stability is less than 25 ppm/°C over a temperature range of +10 °C to +30 °C, and less than 50 ppm over 24 hours at constant temperature. Charge sensitivity is –0.9 mV/keV with a gain tolerance of ±25%.
Features
The detector system includes a silicon detector, Be window, preamplifier, HV bias supply, Peltier cooler, and temperature controller. It has an active area of 5 mm², thickness of 0.5 mm, resolution of less than 190 eV (FWHM), and an energy range of 1 to 30 keV.

Applications
The detector is suitable for X-ray spectroscopy, X-ray fluorescence, X-ray diffraction, Mössbauer spectroscopy, and densitometry.

Power Requirements
The power input is via a 9-pin male sub-D connector, requiring +12 V dc (max 200 mA, typical 70 mA) and –12 V dc (max 10 mA).

Outputs and Indicators
Energy output provides a staircase function with step amplitude proportional to absorbed photon energy. Inhibit output provides a +5 V TTL compatible pulse during preamplifier resetting. A temperature indicator LED signals when the detector is not at the set-point temperature.

Controls
The PW control adjusts the width of the inhibit pulse from 10 µs to 650 µs.

Physical and Environmental
The case size is 100 x 50 x 33 mm, with a net weight of 0.24 kg. Operating temperature ranges from 0 to 50 °C, and humidity from 0 to 80%, non-condensing.