Conveners
WG3/WP3 - Extreme fluence and radiation damage characterization: WG3/WP3 - Part I
- Ioana Pintilie (National Inst. of Materials Physics (RO))
- Joern Schwandt (Hamburg University (DE))
WG3/WP3 - Extreme fluence and radiation damage characterization: WG3/WP3 - Part II
- There are no conveners in this block
The concept of Non-Ionizing Energy Loss (NIEL) is used to compare and quantify the damage caused to semiconductor devices in various radiation environments. However, the current NIEL concept has a limitation in predicting the formation rates of cluster and point defects in silicon (Si) crystals for different particles and particle energies. Experimental observations have revealed differences...
This study investigates radiation damage in CZ p-type silicon pad diodes irradiated with 1 MeV electrons and Co-60 gamma rays, using Capacitance Deep-Level Transient Spectroscopy (C-DLTS), Current Deep-Level Transient Spectroscopy (I-DLTS) and Thermally Stimulated Current (TSC) techniques. The results are compared to those of Co-60 gamma-irradiated epitaxial (EPI) silicon material. In CZ...
The Boron containing radiation induced donor BCD (attributed in the literature to BiOi) is a bistable defect located at approximately Ec-0.25V and is the cause for the acceptor removal in p-type samples. The bistable nature of the defect has been previously evidenced in high resistivity samples (12 kΩcm), via the fluctuations observed in depletion voltage after a stimulus of excess charge...
Kevin Lauer,1,2 Robin Müller,2 Katharina Peh,2 Dirk Schulze,2 Stefan Krischok,2 Stephanie Reiß,1 Andreas Frank1 and Thomas Ortlepp1
1CiS Forschungsinstitut für Mikrosensorik GmbH, Konrad-Zuse-Str. 14, 99099 Erfurt, Germany
2Technische Universität Ilmenau, Institut für Physik, Weimarer Str. 32, 98693 Ilmenau, Germany
An acceptor removal phenomenon (ARP) appears in irradiated low-gain...
The High-Luminosity LHC will challenge the detectors with a nearly 10-fold increase in integrated luminosity compared to the previous LHC runs combined, thus the CMS detector will be upgraded to face the higher levels of radiation and the larger amounts of data collected. The High-Granularity Calorimeter (HGCAL) will replace the current endcap calorimeters of the CMS detector. It will...
The High-Luminosity Large Hadron Collider (HL-LHC) will present an approximately 10-fold increase in integrated luminosity relative to the aggregate of all previous LHC operational phases. Consequently, the CMS detector needs to be upgraded to withstand the increased radiation levels. The current endcap calorimeters will be replaced by the High-Granularity Calorimeter (HGCAL) which,...
To face the higher levels of radiation due to the10-fold increase in integrated luminosity during the High-Luminosity LHC, the CMS detector will replace the current endcap calorimeters with the new High-Granularity Calorimeter (HGCAL). It will facilitate the use of particle-flow calorimetry with its unprecedented transverse and longitudinal readout/trigger segmentation, with more than 6M...
Tomas Ceponis, Laimonas Deveikis, Eugenijus Gaubas, Jevgenij Pavlov, Vytautas Rumbauskas; Institute of Photonics and Nanotechnology, Vilnius University
Carrier recombination characteristics strongly depend on defect species present within the semiconductor material. The reduction of carrier lifetime correlates well with decrease of charge collection efficiency and with increase of the...
Future collider experiments will reach fluences too high for current silicon-based detectors to handle. Research into making silicon more radiation hard is required, but new materials could also yield the desired properties. Silicon carbide is one of the materials currently considered due to it's large bandgap, leading to low leakage currents even after high fluences of irradiation and...
Carbon enriched LGAD sensors will be used for ATLAS HGTD project, since LGAD with carbon implantation be demonstrated to have good radiation hardness as compared to the one without carbon. Researches of radiation damage to the LGAD and how to improve the carbon process also been studied preliminarily by IHEP. In this project, we plan to do more studies of irradiated carbon enriched sensors by...
Low Gain Avalanche Detectors (LGADs) are crucial for high-energy physics applications, especially in the harsh radiation environments of future colliders. This talk introduces LGADs enhanced with deep carbon implantation, emphasizing their superior radiation tolerance.
LGADs achieve high temporal resolution and precise spatial measurements through an internal gain mechanism and fine...
4H-SiC is considered a promising candidate to increase the radiation hardness of particle detectors. Nevertheless, there is not yet a commonly accepted radiation model for TCAD simulations. On the contrary: the values presented in literature, i.e., the trap levels, types and cross sections, deviate significantly.
This project proposes the development of a model that is able to describe...
