The detection module of the ARDESIA spectrometer, an SDD-based, multichannel X-ray detector is presented. The detector design and experimental characterization are discussed. ARDESIA has been optimized for synchrotron radiation applications that require high-rate (> 1 Mcps/channel) and high-resolution (better than 200 eV at 6 keV) X-ray detection. The main target applications considered in this development are X-ray Fluorescence (XRF) and X-ray Absorption Fine Structure (XAFS) spectroscopy, in particular for the DAFNE-Light DXR1 beamline at LNF (Frascati, Italy). This detector is based on a compact unit (16 mm × 16 mm) that can be replicated and juxtaposed with several units, thus easily covering different detection configurations. The detector consists of a 4-channel monolithic array of SDDs, produced by Fondazione Bruno Kessler (Trento, Italy) connected to a 4-channel monolithic CUBE preamplifier mounted on the same carrier. The CUBE preamplifier, compatible with both analog and digital pulse processing, enables reaching high count rates (1 Mcps per channel), while keeping good spectroscopic performances. Its extremely low white series noise guarantees good energy resolution, even at short pulse processing times (below 200 ns).
ARDESIA Detection Module: A Four-Channel Array of SDDs for Mcps X-Ray Spectroscopy in Synchrotron Radiation Applications
Borghi, G.;Piemonte, C.;Zorzi, N.;
2018-01-01
Abstract
The detection module of the ARDESIA spectrometer, an SDD-based, multichannel X-ray detector is presented. The detector design and experimental characterization are discussed. ARDESIA has been optimized for synchrotron radiation applications that require high-rate (> 1 Mcps/channel) and high-resolution (better than 200 eV at 6 keV) X-ray detection. The main target applications considered in this development are X-ray Fluorescence (XRF) and X-ray Absorption Fine Structure (XAFS) spectroscopy, in particular for the DAFNE-Light DXR1 beamline at LNF (Frascati, Italy). This detector is based on a compact unit (16 mm × 16 mm) that can be replicated and juxtaposed with several units, thus easily covering different detection configurations. The detector consists of a 4-channel monolithic array of SDDs, produced by Fondazione Bruno Kessler (Trento, Italy) connected to a 4-channel monolithic CUBE preamplifier mounted on the same carrier. The CUBE preamplifier, compatible with both analog and digital pulse processing, enables reaching high count rates (1 Mcps per channel), while keeping good spectroscopic performances. Its extremely low white series noise guarantees good energy resolution, even at short pulse processing times (below 200 ns).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
