Characterization of High-Flux CdZnTe with optimized electrodes for 4th generation synchrotrons

Autor: O. Baussens, C. Ponchut, M. Ruat, M. Bettelli, S. Zanettini, A. Zappettini
Rok vydání: 2022
Předmět:
Zdroj: Journal of Instrumentation. 17:C11008
ISSN: 1748-0221
Popis: In this collaboration work between IMEM-CNR and the ESRF, we explore the potential of the Redlen Technologies High-Flux Cadmium Zinc Telluride (HF-CZT) material for direct X-ray detection at fluxes ranging from 10+7 to 10+12 photons mm−2 s−1. HF-CZT single crystals with optimized electroless gold and sputtered platinum electrodes are characterized both under dark conditions and under X-ray irradiation. We report low leakage current under dark conditions (2 at 5 kV/cm). We also report good linearity (R 2 > 0.999) under moderate to high incident X-ray flux (10+7 to 10+10 photons mm−2 s−1) as well as good stability and reproducibility for incident X-ray fluxes up to 10+12 photons mm−2 s−1. Finally, we study transient phenomena in the seconds time range and report fast stabilization time (
Databáze: OpenAIRE