X-ray Sensor Joint Workshop - From Soft to Hard X-rays

Session

Sensor and detector characterization - II

SXD

13 Jan 2026, 15:55

ML E12 (ETH)

Conveners

Sensor and detector characterization - II

• Anna Bergamaschi (PSI - Paul Scherrer Institut)

42. Characterization of inverse LGAD Sensors in the Soft X-ray Energy Range

Shuqi Li (PSI - Paul Scherrer Institut)

13/01/2026, 15:55

Sensor and detector characterization

Soft X-ray Detector Workshop

At the Paul Scherrer Institute (PSI), we are developing inverse Low-Gain Avalanche Diode (iLGAD) sensors with a thin entrance window (TEW) in collaboration with Fondazione Bruno Kessler (FBK). The TEW design is used to enhance the charge-collection efficiency near the sensor surface. In our latest batch, the quantum efficiency (QE) exceeds 85% at 250 eV, which is comparable to state-of-the-art...

68. Performance of LGAD-based X-/Gamma-ray Detection Systems with SIRIO Ultra-Low Noise Charge Sensitive Preamplifier

Filippo Mele (Politecnico di Milano), Gabriele Giacomini (Brookhaven National Laboratory), Giuseppe Bertuccio (Politecnico di Milano, Department of Electronics, Information and Bioengineering, Como, IT; National Institute of Nuclear Physics (INFN), Milan Section, Milan, IT), Iurii A. Eremeev (Politecnico di Milano, Department of Electronics, Information and Bioengineering, Como, IT), Wei Chen (Brookhaven National Laboratory, Instrumentation Division, Upton, NY)

13/01/2026, 16:15

Soft X-ray Detector Workshop

We present the performance of two X/Gamma-ray detection systems based on Low-Gain Avalanche Diodes (LGADs) with a wide range of multiplication gains: the first LGAD is characterized by a very-low gain range (M_s=1.2-1.9), while the second one by a high-gain range (M_s=10.2-19.3). To allow the evaluation of the ultimate energy-resolution limits of the LGAD sensors, the read-out is performed...

40. RIXS Detector Using JUNGFRAU with Rectangular Pixels

Viktoria Hinger (PSI - Paul Scherrer Institut)

13/01/2026, 16:35

Sensor and detector characterization

Soft X-ray Detector Workshop

The development of hybrid pixel detectors combining the JUNGFRAU charge-integrating ASIC with inverse Low-Gain Avalanche Diode (iLGAD) sensors continues to advance toward high-performance soft X-ray Resonant Inelastic X-ray Scattering (RIXS) experiments. The project aims to achieve both high frame rates (2 kHz continuous and up to 250 kHz in burst mode with the most recent ASIC version...

20. First electrical and soft X-ray characterization of ultra-shallow junction nLGADs from IMB-CNM

Milos Manojlovic (Instituto de Microelectrónica de Barcelona (IMB-CNM, CSIC))

Sensor and detector characterization

Soft X-ray Detector Workshop

n-type Low Gain Avalanche Detectors (nLGADs) have already demonstrated excellent performance for shallow-penetrating radiation detection, including low-energy photons down to the deep-ultraviolet (DUV) spectrum, as well as low-energy protons and ions. They are specifically designed to achieve high gain only when radiation penetrates the near-surface region (approximately 1–2 µm). We report on...