Volume 373 - The 28th International Workshop on Vertex Detectors (Vertex2019) - Poster session
Design of a Segmented LGAD Sensor for the Development of a 4-D Tracking Detector
S. Wada,* K. Onaru, K. Hara, Y. Unno, K. Nakamura
*corresponding author
Full text: pdf
Pre-published on: March 05, 2020
Published on: September 14, 2020
Abstract
Tracking detectors capable of recording the hit-time information at a precision of O(10 ps) will be breakthrough devices in the future of hadron collider experiments to resolve signal tracks in a harsh environment with significant background tracks. The low-gain avalanche detector (LGAD) is an example of such a device, which is expected to provide real-time fine spatial resolution for a 4-D tracking detector. In this study, we have fabricated LGAD diodes and segmented strip-type detectors at Hamamatsu Photonics. We tested pad type detectors using a proton beam and obtained a time resolution better than 30 ps for the devices with an active thickness of 50 $\mu$m. The non-uniformity of the gain across the strip was modeled using TCAD simulation, which was then used to design segmented LGAD sensors with a uniform gain. The study suggests that uniform LGAD sensors can be made with a broader operation bias voltage range. In this paper, we present the test beam and the TCAD simulation results.
DOI: https://doi.org/10.22323/1.373.0057
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access