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6CCVD Research

LGAD technology for heavy ion detection and radiation damage diagnostics in diamond

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2025-08-01
JournalJournal of Instrumentation
AuthorsJerzy Pietraszko, Ashish Bisht, T. Bergauer, Henrik Floersheimer, J. FrĆ¼hauf
InstitutionsGSI Helmholtz Centre for Heavy Ion Research, University of Warsaw

Abstract

Section titled ā€œAbstractā€

Abstract We present the application of LGAD technology for time-of-flight measurements of heavy ions and for precise diagnostics of radiation damage in diamond sensors. The polycrystalline CVD (pcCVD) diamond sensor used in this work was irradiated with heavy ion beams at GSI, Darmstadt, Germany during several experimental campaigns and subsequently investigated at MedAustron, Wiener Neustadt, Austria. To mitigate radiation-induced performance degradation, we propose a dedicated amplification system originally developed for LGAD sensors, which significantly extends the operational lifetime of diamond detectors. For precise sensor diagnostics, we employed strip LGAD sensors ā€” commonly used for minimum ionizing particle (MIP) detection ā€” and demonstrated their excellent performance for heavy ion (He/C) detection, achieving timing resolutions below 40 ps.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 2009 - The High-Acceptance Dielectron Spectrometer HADES [Crossref]
  2. 2010 - Diamonds as timing detectors for MIP: The HADES proton-beam monitor and start detectors [Crossref]
  3. 2014 - Radiation damage in single crystal CVD diamond material investigated with a high current relativistic ^197Au beam [Crossref]
  4. 2020 - Low Gain Avalanche Detectors for the HADES reaction time (T_0) detector upgrade [Crossref]
  5. 2023 - Novel ion imaging concept based on time-of-flight measurements with low gain avalanche detectors [Crossref]
  6. 2024 - First experimental time-of-flight-based proton radiography using low gain avalanche diodes [Crossref]
  7. 2022 - Low Gain Avalanche Detector Application for Beam Monitoring [Crossref]
  8. 2022 - LGAD technology for HADES, accelerator and medical applications [Crossref]
  9. 2022 - Status of Diamond and LGAD Based Beam-Detectors for the mCBM and CBM Experiments at GSI and FAIR [Crossref]

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