17-19 October 2018
Laboratori Nazionali di Frascati INFN
Europe/Rome timezone

ARDESIA - a Fast SDD X-ray Spectrometer for Synchrotron Applications

Not scheduled
30m
Aula Salvini (Laboratori Nazionali di Frascati INFN)

Aula Salvini

Laboratori Nazionali di Frascati INFN

Via E. Fermi 40 00044 Frascati (RM)

Speaker

Idham Hafizh (Politecnico di Milano)

Description

ARDESIA is an SDD-based, X-ray spectrometer, optimized for synchrotron experiments that require high count rates (>1Mcps/channel) and excellent energy resolution (<150 eV FWHM at shaping times faster than 200 ns). The main target applications are XRF and XAFS techniques. The detection module consists of 2 × 2-pixel monolithic SDD (5 mm pitch) coupled with a 4-channel version of the CUBE CMOS preamplifier. The mechanical structure of the instrument has been realized to fit inside a sample chamber with a finger-like structure. The system grants proper cooling (-40oC), static vacuum condition (10-2 mbar). ARDESIA is also equipped with two auxiliary electronics: for power and SDD biasing SDD and for closed-loop double Peltier TEC driving. The output signals of the instrument are then processed by digital pulse processors using short pulse processing times, to show good performances at high count rates (about 1 Mcps per channel). Two different campaigns of measurements in synchrotron beamlines have been performed to assess the performance of the instrument. At the LNF DANE-Light DXR1 soft X-ray beamline, XRF measurements on low atomic number elements (down to C-K line, 270 eV) have demonstrated good energy resolution and first XAFS spectrum of Silicon K-edge in a PyrexTM glass sample has been acquired. At the LISA beamline of ESRF, XAFS measurements on different samples, such as Kesterite and Photochabourneite, are performed. demonstrating high count rate capability and stability of the instrument over time.

Primary authors

Carlo Ettore Fiorini (Politecnico di Milano) Gianlorenzo Utica (Politecnico di Milano) Giovanni Bellotti (Politecnico di Milano) Idham Hafizh (Politecnico di Milano) Prof. Marco Carminati (Politecnico di Milano) Matteo Gugiatti (Politecnico di Milano)

Co-authors

Alberto Giacomo Gola (FBK Trento) Andrea Capsoni (MI) Antonella Balerna (LNF) Giacomo Borghi (FBK Trento) Luca Bombelli (XGLab S.R.L. Bruker Nano Analytics) Nicola Zorzi (FBK Trento) Simone Coelli (MI) Vinicio Tullio (LNF)

Presentation Materials

There are no materials yet.