DEPFET Vertex Detectors: Status and Plans

TL;DR

This paper reviews the development, testing, and application of DEPFET active pixel sensors for vertex detectors in future colliders, highlighting recent results, challenges, and future plans for the Belle-II experiment.

Contribution

It provides an overview of recent advancements in DEPFET technology, including test results, radiation hardness, and design considerations for the Belle-II vertex detector.

Findings

Proven excellent performance in test beam campaigns

Demonstrated radiation hardness of DEPFET sensors

Developed thinned sensors for the Belle-II detector

Abstract

DEPFET active pixel sensors are a well-developed technology for vertex detectors at future colliders. Extensive test beam campaigns have proven the excellent performance of these devices, and their radiation hardness has been thoroughly tested. For the Belle-II experiment at the SuperKEKB collider, a new vertex detector based on DEPFET technology is being developed, using sensors thinned down to 75 \mu m. We give an overview over recent results with test devices using ILC pixel geometries as well as the concepts and challenges for the Belle-II pixel vertex tracker and discuss how the R&D for the ILC VXD can take advantage of these developments.