READOUT INTEGRATED CIRCUIT FOR THE DIRECT PHOTON COUNTING DETECTOR SCICODE
V.M. Aulchenko1, V.E. Burdin1,2, A.A. Zharikov1, V.V. Zhulanov1, S.V. Ivanenko1, V.N. Kudryavtsev1, V.M. Titov1, L.I. Shekhtman1,3,4, A.A. Yurovskaya1, M.A. Yartseva1
1Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2SKIF Shared Research Facility of Boreskov Institute of Catalysis, Novosibirsk, Russia
3Novosibirsk State University, Novosibirsk, Russia
4Institute of solid state chemistry and mechanochemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: application specific integrated circuit, coordinate detector, semiconductor detector, direct photon counting mode
Abstract
For dynamic diffraction experiments at the "Plasma" section of Station 1-3 ("Fast Processes") at the SKIF Shared Research Facility, the SciCODE semiconductor one-dimensional detector-which operates in direct X-ray photon counting mode - is being developed. Photons are absorbed in a semiconductor microstrip sensor, with each strip connected to an input contact of the SciCODE64C bare-die readout chip. The chip features 64 channels arranged with a 70 µm pitch. Each channel comprises a charge-sensitive amplifier, a shaping amplifier, four comparators with adjustable thresholds, four 8-bit counters, an output shift register, and a control register. This article describes the design of the readout chip and presents initial results from the measurement of its key characteristics.
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