ePix10k is a variant of a novel class of integrating pixel ASICs architectures optimized for the processing of signals in second generation LINAC Coherent Light Source (LCLS) X-Ray cameras. The ASIC is optimized for high dynamic range application requiring high spatial resolution and fast frame rates. ePix ASICs are based on a common platform composed of a random access analog matrix of pixel with global shutter, fast parallel column readout, and dedicated sigma-delta analog to digital converters per column. The ePix10k variant has 100um×100um pixels arranged in a 176×192 matrix, a resolution of 140e- r.m.s. and a signal range of 3.5pC (10k photons at 8keV). In its final version it will be able to sustain a frame rate of 2kHz. A first prototype has been fabricated and characterized. Performance in terms of noise, linearity, uniformity, cross-talk, together with preliminary measurements with bump bonded sensors are reported here.

Date Published: 12 May 2015
PDF: 6 pages
Proc. SPIE 9512, Advances in X-ray Free-Electron Lasers Instrumentation III, 95120A (12 May 2015); doi: 10.1117/12.2182193

Published in SPIE Proceedings Vol. 9512:
Advances in X-ray Free-Electron Lasers Instrumentation III
Sandra G. Biedron, Editor(s)