XC-Hydra

The XC-Hydra series is the world’s first commercially available photon counting detector using direct conversion technology that is dedicated to medical applications.

Developed around the Direct Conversion group’s powerful CdTe- CMOS hybrid sensor, the XC-Hydra sets new standards in sensitivity, making it a leader in low dose imaging. With market defining energy resolution and dual energy discrimination, the XC-Hydra provides unparalleled performance.

All Varex/Direct Conversion imaging receptors are designed to be integrated into a complete X-ray system by a qualified system integrator. The system integrator is responsible for obtaining FDA clearance for medical use or appropriate CE marking.

Performance & Sensor

Imaging parameters and performance1 Electrical interface2 Environmental conditions3 Software4

Pixel technology

Photon counting

Pixel fill factor

100 %

Active sensor area

6 mm wide
100 mm to 700 mm length

Maximum frame rate

Up to 300 fps

DQE (0)

>80 % (RQA5 spectra, 6μGy, SID 1m)

Sensor material and thickness

Cadmium telluride (CdTe): 0.75 mm

Tile gap

100 μm

Count rate range

Up to 200 Mcps per mm2

Energy discrimination

Single / dual energy threshold

Lag

0 % (after X-ray 6μGy)

Pixel size

100 μm

X-ray energy range

10 kVp to 160 kVp

Imaging speed

Up to 10,000 lines/s

MTF

80 % @ 2lp/mm, 45 % @ 5lp/mm,

Ghosting

<0.1 % 1 min after X-rays (6μGy)

Data interface

GigE

Power supply

12 VDC

External trigger

Opto coupled 5 V, 12-24 V with external resistor

Operating temperature range

+10 to +30 °C @30 % – 75 % humidity
+30 to +35 °C @30 % – 55 % humidity
+35 to +40 °C @30 % – 45 % humidity
(non-condensing)

Ingress protection level

IP20

Temperature control

Internal Peltier temperature control + PWM controlled fan system

Storage temperature range

+5 to +50 °C @10 % – 95 % humidity

Software GUI included

Fully flexible SDK included

Supported operating systems

Windows 7 onwards

Technology

The basic component in our detectors is a direct conversion material, which converts the X-rays into electrical signals, and a CMOS (ASIC) which transforms the electric signals into a data stream of either the integrated electric charge or the number of photons which has entered each pixel. This data is then used to create a digital image which is either two- or three-dimensional, depending on the scan geometry.

Our Technology

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