10–14 Jun 2024
The Westin St. Francis San Francisco on Union Square
US/Pacific timezone

High radiation resistance LGAD designs

13 Jun 2024, 18:32
1m
Colonial & Italian

Colonial & Italian

(b) Poster abstract only (one author must be in person) Detector Concepts Poster session

Speaker

Dr Simone Michele Mazza (University of California,Santa Cruz (US))

Description

In the past few years, the Low Gain Avalanche Detector (LGAD, thin silicon detectors with modest internal gain and extremely good time resolution) technology have been significantly advanced. The first application of this kind of device will be in the ATLAS and CMS timing layers at the HL-LHC. The first prototypes of LGADs produced few years ago within the collaborations did not show sufficient radiation hardness. However, LGADs with radiation hardness up to a fluence of 2.5E15 Neq/cm2 were developed in the last 5 years thanks to a focused R&D effort.
This successful development paves the path for next generation machines (e.g., FCC-hh) that will require radiation tolerance an order (or more) of magnitude greater and at the same time require a better timing and position resolution. The cited requirements are in a high pile-up environment that is not suitable for AC-LGADs which is the most advanced high granularity LGAD prototype.
There are several new LGAD prototypes that are geared towards satisfying all of these requirements as well as radiation hardness, this contribution will give a brief overview on them and the path forward in their development.

Authors

Abraham Seiden (University of California,Santa Cruz (US)) Prof. Bruce Andrew Schumm (University of California,Santa Cruz (US)) Hartmut Sadrozinski (University of California,Santa Cruz (US)) Hartmut Sadrozinski (SCIPP, UC santa Cruz) Dr Jennifer Ott (University of California,Santa Cruz (US)) Matthew Gignac (University of California,Santa Cruz (US)) Dr Simone Michele Mazza (University of California,Santa Cruz (US)) Yuzhan Zhao (University of California Santa Cruz)

Presentation materials