Jun 25 – 29, 2023
Ole-Johan Dahls Hus
Europe/Oslo timezone

P2.48: Characterization of interpad "no-gain" region in the novel, trenched LGADs, from the TI-LGAD RD50 batch production using a fs-laser based TCT-SPA and TPA -TCT at the ELI Beamlines, ELI ERIC

Jun 28, 2023, 5:29 PM
Ole-Johan Spiseri (Ole-Johan Dahls Hus)

Ole-Johan Spiseri

Ole-Johan Dahls Hus

Ole Johan Dahls Hus - Oslo Science Park Gaustadalléen 23B, 0373 Oslo


Prof. Gordana Lastovicka-Medin (University of Montenegro)


In this report we present the results from the two extensive campaigns at the ELI Beamlines, ELI ERIC, on the TI-LGAD prototypes from the TI-LGAD RD50 run production. The focus has been given to the study of the inter-pad region and to the inter-pad distance (IPD) measurements. The TI-LGAD prototypes with the one trench are compared to those with the two tranches. Also, untypical UFSD Type 10 Prototype, with 2p-stops and guard bias ring in between p-stops (produced as a reference prototype in the same batch and from the same wafer as trenched LGADs), is compared to the trenched LGADs with two trenches. The two experimental techniques, the fs-laser based TCT-SPA and the TPA-TCT are compared. In particular, the potential of fs-laser based SPA in resolving the structures of the inter-pad region will be emphasized. We will also discuss the the inter-pad region response to very high intensity injections.

Primary authors

Prof. Gordana Lastovicka-Medin (University of Montenegro) Mateusz Rebarz (ELI ERIC, ELI Beamlines)


Gregor Kramberge (Jozef Stefan Institute) Jakob Andreasson (ELI ERIC, ELI Beamlines)

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