WidePIX 5X5

Advacam’s Industrial WidePIX 5X5 consists of 5×5 Timepix tiles. Each Timepix tile consists of an edge-less silicon sensor. The edge-less sensor technology allows placing all tiles together from all sides, leaving no rifts. Thus the whole imaging area of the camera is fully sensitive to the radiation and does not have any gaps between the tiles in the image. The camera is made robust to address industrial users.

Description

Click for datasheet The large area of WidePIX 5×5 with resolution of 1280 x 1280 pixels i.e. 1.63Mpixels and continuously sensitive surface is composed of a row of detector tiles. Each tile consists of a single Timepix hybrid detector (256 x 256 pixels) with an edgeless silicon or CdTe sensor. The minimum detectable energy is typically 5 keV in case of X-ray photons. The intrinsic spatial resolution of the camera is defined by pixel size which is 55 µm for Advacam’s WidePIX 5X5. The pixels situated on the border of tiles are 2.5 times bigger in one direction, while the corner pixels of tiles are 2.5 times larger in both directions. Each pixel has integrated digital counter that counts number of particles e.g. X-ray photons. The particle counting principle assures a noiseless detection with no additional noise due to image integration or readout. The noiseless detection allows getting X- ray images with very high contrast and broad dynamic range. Therefore, even structure of low attenuating objects, such as plastic or soft tissue, is imaged with a high contrast. The Timepix technology allows setting of energy discrimination threshold. This feature allows obtaining multi-energy-channel “color” radiographs where different materials are identified and imaged in colors (similar to color photography). The minimum energy threshold is typically better than 5 keV. The camera is connected to the computer via USB 2.0 interface with readout time of 0.65 seconds/ frame. The thermal stabilization of the camera is taken care by an active water cooling system with chiller. The power consumption is 25 W.
  • Sensor Material: Silicon, CdTe
  • Sensor Thickness: 300 μm, 500 μm Si and 1000 μm CdTe
  • Sensitive Area: 71 mm x 57 mm
  • Number of Pixels: 1280 x 1280
  • Pixel Pitch: 55 μm
  • Resolution: 9 lp/mm
  • Readout Speed: 10 frames/s
  • Threshold Step Resolution: 0.1 keV
  • Energy Resolution: 0.8 keV (THL) and 2 keV (ToT)
  • Min Detectable Energy: 5 keV for X-rays
  • Photon Counting Speed: up to 3 x 106 photons/s/pixel
  • Readout Chip: Timepix
  • Pixel Mode of Operation: Counting, Time-over-Threshold, Time-of -Arrival
  • Connectivity: USB 2.0
  • Dimensions: 130 mm x 103 mm x 54 mm (L x W x H)
  • Weight: 3.3 kg
  • Software: Pixet PRO
     

Device Parameters

Operating Conditions

Symbol Parameter Min Typ Max Units Comment
TA Ambient Temperature Range 0 30 40 °C Max with heat sink
Φ Humidity 60 % Not condensing
IP Code IP50

Family Parameters

TA = 25°C, USB voltage VCC = 24V
Symbol Parameter WidePIX 5×5 Units Comment
VCC Supply Voltage 20/24/26 V Min/Typ /Max
ICC Supply Current (VCC = 24V) 1000 mA Typ
P Power Dissipation 26 W Max
Sensitive Area 71.5 x 71.5 mm
Detector Resolution 1280 x 1280 Pixels
Frame Rate 5 fps
Readout Time 200 ms
Weight 3300 g

Sensor parameters

TA = 25°C
Symbol Parameter Si CdTe Units Comment
Thickness 100 300 1000 1000 µm
Bias Voltage 50 200 500 -500 V Max
Calibrated in X-ray Energy Range yes yes yes yes keV See chart below
Energy resolution (σ @ 23 keV) 0.5 1.1 keV
Detectable energy range 5 to 60 5 to 600 keV

Device Description

+24VDC connector

Main power supply (via standard M8 connector with 3 female contacts). Connect after plugging USB connector.

USB connector

USB type mini B, Standard USB 2.0 Hi-Speed, In IP68 protection.

Synchronization interface

Connector Two 4-pin M8 connectors (female for outputs and male for input) serve as synchronization interface, allowing to synchronize WIDEPIX5×5 detector with external processes. Four signals are available:
  • Ready in – measurement is not possible, when signal at logical zero
  • Trigger in – logical zero starts shutter (measurement)
  • Ready out – logical one if device is ready to for new shutter
  • Trigger out – mirrors shutter (logical zero when shutter is active)
  All signals are TTL compatible and 5V tolerant. For detailed description see Synchronization Guide.
Sync. Outputs (M8-4 Female) Sync. Inputs (M8-4 Male)
Pin Signal Pin Signal
1 Gnd 1 Gnd
2 Ready out 2 Ready out
3 Trigger out 3 Trigger out
4 Reserved 4 Reserved

Water cooling interface

It is mandatory to cool down detector when in operation. WIDEPIX5×5 uses water connectors that allow for quick disconnection/reconnection. Mating connector is included as standard accessories and has to be attached to 4x6mm plastic hose.

Mechanical dimensions

All dimensions are in mm.