X-ray performance of a wafer-scale CMOS flat panel imager for applications in medical imaging and nondestructive testing

In this study, we designed a flat-panel digital X-ray imaging module based upon the amorphous silicon (a-Si) technology and tested potential for medical imaging and nondestructive testing. The module employs a commercially available a-Si photosensor array of a 143 μm x 143 μm pixel size and a 42.9 cm x 42.9 cm active area, coupled with a CsI(Tl) scintillator of a 550 μm thickness, and a readout IC board which can be accessed through our home made GUI software. The experimental test was performed to evaluate the system response with exposure, modulation transfer function (MTF), noise power spectrum (NPS), and detective quantum efficiency (DQE).

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Integration of flat panel X-ray detector for high resolution diagnostic medical imaging

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment ◽

10.1016/j.nima.2010.06.115 ◽

2011 ◽

Vol 633 ◽

pp. S40-S42

Author(s):

Min-woo Kim ◽

Min-seok Yun ◽

Yoon-suk Kim ◽

Kyung-min Oh ◽

Jung-wook Shin ◽

...

Keyword(s):

High Resolution ◽

Medical Imaging ◽

Flat Panel ◽

X Ray

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A high performance 1024 × 1024 digital x-ray panel with integrated readout electronics for nondestructive testing and medical imaging applications

2007 IEEE Nuclear Science Symposium Conference Record ◽

10.1109/nssmic.2007.4436957 ◽

2007 ◽

Cited By ~ 1

Author(s):

Paul Pan ◽

Susan Petronio ◽

John Schlesselmann ◽

Naseem Aziz ◽

Albert Chen ◽

...

Keyword(s):

Medical Imaging ◽

Nondestructive Testing ◽

High Performance ◽

Readout Electronics ◽

X Ray

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Portable hard x-ray source for nondestructive testing and medical imaging

Review of Scientific Instruments ◽

10.1063/1.1148953 ◽

1998 ◽

Vol 69 (6) ◽

pp. 2524-2530 ◽

Cited By ~ 13

Author(s):

Craig N. Boyer ◽

Glenn E. Holland ◽

John F. Seely

Keyword(s):

Medical Imaging ◽

Nondestructive Testing ◽

X Ray

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The Dexela 2923 CMOS X-ray detector: A flat panel detector based on CMOS active pixel sensors for medical imaging applications

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment ◽

10.1016/j.nima.2012.06.024 ◽

2012 ◽

Vol 689 ◽

pp. 12-21 ◽

Cited By ~ 58

Author(s):

Anastasios C. Konstantinidis ◽

Magdalena B. Szafraniec ◽

Robert D. Speller ◽

Alessandro Olivo

Keyword(s):

Medical Imaging ◽

Active Pixel Sensors ◽

Flat Panel ◽

X Ray ◽

Flat Panel Detector ◽

Active Pixel ◽

Pixel Sensors

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Medical imaging with mercuric iodide direct digital radiography flat-panel x-ray detectors

10.1117/12.450503 ◽

2003 ◽

Cited By ~ 7

Author(s):

Haim Gilboa ◽

Asaf Zuck ◽

O. Dagan ◽

Alex Vilensky ◽

B. N. Breen ◽

...

Keyword(s):

Medical Imaging ◽

Digital Radiography ◽

Mercuric Iodide ◽

Flat Panel ◽

X Ray

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Amorphous Silicon Sensor Arrays for X-Ray and Document Imaging

MRS Proceedings ◽

10.1557/proc-487-399 ◽

1997 ◽

Vol 487 ◽

Cited By ~ 18

Author(s):

R. A. Street ◽

R. B. Apte ◽

S. E. Ready ◽

R. L. Weisfield ◽

P. Nylen

Keyword(s):

High Resolution ◽

Medical Imaging ◽

Amorphous Silicon ◽

Present State ◽

Sensor Arrays ◽

Image Sensor ◽

Large Area ◽

Flat Panel ◽

X Ray ◽

Silicon Sensor

AbstractLarge area amorphous silicon image sensor arrays are important for x-ray medical imaging and document scanning as well as a variety of other applications where large sensor size is required. The paper first summarizes the present state of the flat panel x-ray imager technology, and compares the two main approaches for x-ray detection. We then describe the performance of a new, large area, high resolution, radiographic imager based on a single amorphous silicon array with 2304×3200 pixels, and an active area of 30×40 cm (12×1 6”).

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