Author:
Andrä Marie,Zhang Jiaguo,Bergamaschi Anna,Barten Rebecca,Borca Camelia,Borghi Giacomo,Boscardin Maurizio,Busca Paolo,Brückner Martin,Cartiglia Nicoló,Chiriotti Sabina,Dalla Betta Gian-Franco,Dinapoli Roberto,Fajardo Pablo,Ferrero Marco,Ficorella Francesco,Fröjdh Erik,Greiffenberg Dominic,Huthwelker Thomas,Lopez-Cuenca Carlos,Meyer Markus,Mezza Davide,Mozzanica Aldo,Pancheri Lucio,Paternoster Giovanni,Redford Sophie,Ruat Marie,Ruder Christian,Schmitt Bernd,Shi Xintian,Sola Valentina,Thattil Dhanya,Tinti Gemma,Vetter Seraphin
Abstract
Recent advances in segmented low-gain avalanche detectors (LGADs) make them promising for the position-sensitive detection of low-energy X-ray photons thanks to their internal gain. LGAD microstrip sensors fabricated by Fondazione Bruno Kessler have been investigated using X-rays with both charge-integrating and single-photon-counting readout chips developed at the Paul Scherrer Institut. In this work it is shown that the charge multiplication occurring in the sensor allows the detection of X-rays with improved signal-to-noise ratio in comparison with standard silicon sensors. The application in the tender X-ray energy range is demonstrated by the detection of the sulfur K
α and K
β lines (2.3 and 2.46 keV) in an energy-dispersive fluorescence spectrometer at the Swiss Light Source. Although further improvements in the segmentation and in the quantum efficiency at low energy are still necessary, this work paves the way for the development of single-photon-counting detectors in the soft X-ray energy range.
Publisher
International Union of Crystallography (IUCr)
Subject
Instrumentation,Nuclear and High Energy Physics,Radiation
Cited by
24 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献