Abstract
Advanced radiation therapy requires advanced instrumentation for dose delivery and beam monitoring. On the other side, research and development of state-of-the-art radiation detectors require research and the development of advanced techniques and instrumentation for characterizing these detectors. The newly developed timing sensors with good spatial and timing resolution, such as low gain avalanche diodes, become very attractive devices to be exploited and integrated in an innovative way into pCT, PET systems, or some other hybrid technologies for microdosimetry. For this purpose, a high fill factor (the ratio of the active area and the total sensor area) and excellent isolation of pixels must be achieved. In the scope of study of the region between the two pixels, the two characterization techniques are presented in this paper: ion beam induced charge (IBIC) and two-photon absorption-transient current technique (TPA-TCT). The accuracy of methods and the precision of the measurements of the interpad distance (IP) are investigated by comparing the experimental data to the nominal values provided by vendors of the prototypes.
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This manuscript has associated data in a data repository. [Authors’ comment: The data presented in this study are available on request from the corresponding author.]
References
M. Missiaggia et al., A novel hybrid microdosimeter for radiation field characterization based on the tissue equivalent proportional counter detector and low gain avalanche detectors tracker: a feasibility study. Front. Phys. 8, 578444 (2021)
G. Pellegrini et al., Technology developments and first measurements of Low Gain Avalanche Detectors (LGAD) for high energy physics applications. Nucl. Instrum. Methods Phys. Res. Sect. A: Accel. Spectrom. Detect. Assoc. Equip. 765, 12–16 (2014)
M. Jaksic, Capabilities of testing detectors for high energy physics by MeV energy ions, in 37th RD50 Collaboration Meeting, November 18–20, 2020
G. Laštovička-Medin et al., Femtosecond laser studies of the single event effects in low gain avalanche detectors and PINs at ELI beamlines. Nucl. Instrum. Methods Phys. Res. Sect. A: Accel. Spectrom. Detect. Assoc. Equip. 1041, 167321 (2022)
S. Pape et al., Characterisation of irradiated and non-irradiated silicon sensors with a table-top two photon absorption TCT system. J. Instrum. 17(08), C08011 (2022)
M. Ferrero et al., An Introduction to Ultra-Fast Silicon Detectors (CRC Press, Boca Raton, 2021)
M. Jakšić et al., Ion microbeam studies of charge transport in semiconductor radiation detectors with three-dimensional structures: an example of LGAD. Front. Phys. 10, 415 (2022). https://doi.org/10.3389/fphy.2022.877577
P. Skomina et al., Studies of inter-pad distance in Low Gain Avalanche Detectors. Nucl. Instrum. Methods Phys. Res. Sect. A: Accel. Spectrom. Detect. Assoc. Equip. 1027, 166158 (2022). https://doi.org/10.1016/j.nima.2021.166158
S. Pape et al., Two photon absorption-transient current technique: techniques for the investigation of segmented sensors and the influence of temperature, in The 41th RD50 Collaboration Meeting, 29th of November–2nd of December, 2022, Sevilla, Spain
M. Manojlovic, Karakterizacija detektora sa lavinskim efektom niskog pojačanja brzim jonskim snopovima (in English: “Characterisation of detectors with internal moderate gain multiplication using ion beams”). MSc theses, Faculty of Natural Sciences and Mathematics, University of Montenegro, October 2022
G. Paternoster et al., Trench-isolated low gain avalanche diodes (TI-LGADs). IEEE Electron Device Lett. 41(6), 884 (2020). https://doi.org/10.1109/LED.2020.2991351
G. Paternoster et al., Novel strategies for fine-segmented Low Gain Avalanche Diodes. Nucl. Instrum. Methods Phys. Res. Sect. A 987, 164840 (2021)
A. Ashish et al., Characterization of novel trench-isolated LGADs for 4D tracking. Nucl. Instrum. Methods Phys. Res. Sect. A: Accel. Spectrom. Detect. Assoc. Equip. 1048, 167929 (2023). https://doi.org/10.1016/j.nima.2022.167929
M. Mandurrino et al., Demonstration of 200-, 100-, and 50-µm pitch resistive AC-coupled silicon detectors (RSD) with 100% fill-factor for 4D particle tracking. IEEE Electron Device Lett. 40(11), 1780–1783 (2019)
M. Mandurrino et al., First production of resistive AC-coupled silicon detectors (RSD) at FBK, in 34th RD50 Workshop, Lancaster (UK), June 2019. https://agenda.infn.it/event/19536/contributions/96852/attachments/64559/78180/2019Mandurrino_34thRD50_1.pdf
M. Tornago et al., Resistive AC-Coupled Silicon Detectors principles of operation and first results from a combined laser-beam test analysis. Nucl. Instrum. Methods A 1003, 165319 (2021)
G. Lastovicka-Medin et al., Study of 2 P-stop layout of standard segmented LGAD with decreased gain to gain distance using TCT-Single Photon Absorption with microscopic resolution enabled by femtosecond laser from ELI Beamlines: case study of LGAD Type 10, in 41st RD50 Collaboration Workshop on Radiation Hard Semiconductor Devices for Very High Luminosity Colliders, November 29, 2022 to December 2, 2022, Seville, Spain.
M. Printz (for the CMS Collaboration), P-stop isolation study of irradiated n-in-p type silicon strip sensors for harsh radiation environment. Presented at 10th Hiroshima 10th International Hiroshima Symposium on the Development and Application of Semiconductor Tracking Detectors, Xian, China (later published as CMS CER Note No. CMS CR-2015/286). http://cds.cern.ch/record/2102890/files/CR2015_286.pdf. Accessed 25 Mar 2023
Acknowledgements
This work has been performed within the framework of RD50 and partially supported by the Ministry of Science in Montenegro within the project “Improving research infrastructure and measuring techniques for testing of fast “state-of-the-art” LHC-HL time detectors”, Contract No. 03/1-062/20-500/3. The authors acknowledge the financial support from the Slovenian Research Agency (ARRS J1-1699), LM2018141, MEYS Large research infrastructure project ELI Beamlines and the projects ADONIS (CZ.02.1.01/0.0/0.0/16 019/0000789) and ELIBIO (CZ.02.1.01/0.0/0.0/15 003/0000447) from the European Regional Development Fund and the Ministry of Education, Youth and Sports. We wish to acknowledge the support provided by the IAEA within the framework of Coordinated Research Projects G42008 and F11020. We would especially like to thank Milko Jaksic, Andreo Crnjac, Mauricio Rodriguez-Ramos, and Milan Vicentijevic from Rudjer Boskovic Institute in Zagreb for administrating the experiment with ions and for valuable discussion. We also would like to thank our colleagues, from RD50 group from “Laboratory for development and testing of semiconductor particle detectors” of the Institute of Physics of the Czech Academy of Sciences, Marcela Mikestikova and Jiri Kroll. Also we thank Giovanni Paternoster from Fondazione Bruno Kessler (FBK) for useful discussion.
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Laštovička-Medin, G., Rebarz, M., Kramberger, G. et al. Femtosecond laser-based TCT-TPA and IBIC microscopy: two powerful depth profiling characterization tools for testing the micron-sized sensitive volumes in micro-strips or pixeled detectors for microdosimetry and hadron therapy. Eur. Phys. J. Spec. Top. 232, 1501–1511 (2023). https://doi.org/10.1140/epjs/s11734-023-00892-8
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DOI: https://doi.org/10.1140/epjs/s11734-023-00892-8