X-ray Time Delay Integration (TDI) CCD camera

Harrier
Time Delay Integration (TDI) is a special image
acquisition method that is used for in-line
inspection application that requires highspeed, high sensitivity and high resolution.
XTI12848 TDI camera is designed for long life
with a Fiber Optic Plate that separates thesensor from the X-Ray path. X-Scan Imaging
can help users select the scintillator for
specific applications. Pixels are 48 µm × 48µm. Binning modes 2×2, 4×4, 8×8, etc. allow
for imaging at higher speed with lowerresolutions.

Key Features
High speed, resolution & sensitivity
Imaging with off-axis, fiber-optic design
User-select X-ray scintillating material GOS, CsI(Tl), CdWO4, etc.
A selection of lengths:•4 inches (2048 pixels)•9 inches (4608 pixels)•12 inches (6144 pixels)
Highly extended lifetimes
Camera Link (Base configuration) and GigE
Vision interfaces
16-bit digitization and data output
100-240-V, 50-60-Hz power
Software development kit (SDK) with application
programming interface (API)Applications
PCB/SMT inspection
In-line Non-Destructive Testing (NDT)
High-energy x-ray, gamma-ray, betatron and neutron imaging

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Harrier CCD TDI

Principal of operation
In the operation of both traditional Linear Diode Array (LDA) and TDI detectors, objects must
be moving relative to the detectors. In an LDA, a single line of diodes collect signal. Once theobject has past the diode line, no more signal is collected. A TDI device has multiple diodelines and the signal for each line can be passed to the next line. As the object passes overeach line, each line collects signal and then passes the signal to the following line. After theobject passes the final line, the full integrated signal is read out. When the TDI device is
synchronized to the moving object, an image with higher resolution at lower light level isachieved. As a result, signal-to-noise ratio in TDI camera is much higher than that in a linescan camera.

Traditional LDA Application

TDI Application

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Harrier CCD TDI

Comparison images
Radiographs of SD card using traditional LDA and XTI12848 TDI
Sensor board with photodiode locations [This drawing to be updated]

Traditional LDA (50um)

TDI (48um)

Traditional LDA zoomed-in view

TDI zoomed-in view (S/N improved 9X)

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Harrier CCD TDI

Resolution

TDI camera spatial resolution with 3.4× geometric magnification

TDI camera MTF at 10 lp/mm (with 3.4× geometric magnification)

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Harrier CCD TDISpecifications
Model

XTI12848-004

XTI12848-009

XTI12848-012

TDI stages and numberof pixels

2048 × 128

4608 x 128

6144 × 128

Pixel size
X-ray sensitive area

48 µm × 48 µm
98 × 6.1 mm2

221 × 6.1 mm2Maximum X-ray energy

15 MeV

CCD pixel clock

3 MHz

TDI line rate

Up to 10 KHzi

A/D converter

16 bitCamera Link data rate

48 to 84 MHzii

Power requirement
Power consumption

295 × 6.1 mm2

100−240 V, 50−60 Hz
25 W

63 W

Readout direction

Bidirectional

Selectable number ofstages

32, 64, 96, 128

i Line rate may be limited by scintillator choice or by bandwidth considerations of interface.

75 W

10 KHzprovided with CsI and Camera Link interface.
20kHz options available on some configurations
ii Camera Link data rate depends on exact camera configuration.

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is assumed by X-Scan Imaging Corporation for its use. Users are responsible for their products andapplications using X-Scan Imaging components. To minimize the risks associated with users’ products andapplications, users should provide adequate design and operating safeguards. No responsibility is assumedby X-Scan Imaging Corporation for any infringements of patents or other rights of third parties that may
result from the use of the information. No license is granted by implication or otherwise under any patentor patent rights of X-Scan Imaging Corporation.
© 2018 X-Scan Imaging Corp.

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