Dectris EIGER 2 - 3 System Description; Components; Hybrid Photon Counting (HPC) Technology; Basic Functionality

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3. SYSTEM DESCRIPTION

3.1. Components

The DECTRIS EIGER

2 detector system consists of the following components:

• EIGER2 detector

• Power supply unit (PSU)

• Detector control unit (DCU)

• Thermal stabilization unit

• Accessories

• Documentation

3.2. Hybrid Photon Counting (HPC) Technology

3.2.1. Basic Functionality

DECTRIS

X-ray detectors provide direct detection of X-rays with optimized solid-state sensors and CMOS

readout ASICs in hybrid pixel technology. Well-proven standard technologies are employed independently

for both the sensor and the CMOS readout ASIC. The EIGER2 hybrid pixel detector is composed of a sensor, a

two-dimensional array of photodiodes or photoconductors processed in a high-resistivity semiconductor, con-

nected to an array of readout channels designed in advanced CMOS technology. The X-ray detectors operate

in single-photon counting mode and provide outstanding data quality. They feature very high dynamic range,

zero dark signal and zero readout noise and hence achieve optimal signal-to-noise ratio at short readout time

and high frame rates. Large-area detectors with dedicated active areas are built of multiple identical modules

using a modular system concept.

Key Advantages

• Direct detection of X-rays

• Single-photon counting

• Excellent signal-to-noise ratio and very high dynamic range (zero dark signal, zero noise)

• Two energy discriminating thresholds

• Four 16 bit digital counters (two per energy discriminating threshold)

• Short readout time and high frame rates

• Shutterless operation

• Modular system enabling multi-module detectors with a large active area

• Full factory calibration in the specied energy range

Some systems might be delivered without an external power supply unit. Please consult the Technical Specications for more infor-

mation.

Also referred to as Chiller. Some systems might be delivered without a thermal stabilization unit. Please consult the Technical Speci-

cations for more information.

DECTRIS EIGER

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