X-ray imaging with ePix100a: a high-speed, high-resolution, low-noise camera

G. Blaj, P. Caragiulo, A. Dragone, G. Haller, J. Hasi, C. J. Kenney, M. Kwiatkowski, B. Markovic, J. Segal, A. Tomada, Ralph B. James, Michael Fiederle (+2 others)
2016 Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XVIII  
The ePix100A camera is a 0.5 megapixel (704 × 768 pixels) camera for low noise x-ray detection applications requiring high spatial and spectral resolution. The camera is built around a hybrid pixel detector consisting of 4 ePix100a ASICs flip-chip bonded to one sensor. The pixels are 50 µm × 50 µm (active sensor size ∼ 35.4 mm × 38.6 mm), with a noise of ∼ 180 eV rms, a range of 100 8 keV photons, and a current frame rate of 240 Hz (with an upgrade path towards ∼ 10 kHz). This performance leads
more » ... s performance leads to a camera combining a high dynamic range, high signal to noise ratio, high speed and excellent linearity and spectroscopic performance. While the ePix100A ASIC has been developed for pulsed source applications (e.g., free-electron lasers), it performs well with more common sources (e.g., x-ray tubes, synchrotron radiation). Several cameras have been produced and characterized and the results are reported here, along with x-ray imaging applications demonstrating the camera performance.
doi:10.1117/12.2238136 fatcat:govegplo7bamdn46p5fpbadnb4