Session 3WCB: Fast Time Silicon Detectors towards 4D- Trackers II

Development of electronics for 4D trackers

Various detector technologies have been proposed to build 4D trackers for future high energy physics experiments. These detectors, by integrating precise timing and spatial measurements (thus 4D), can not only help event reconstruction in a high pile-up or beam-induced background environment, but also provide unique capabilities in e.g. new physics searches and particle identification. An important consideration for such 4D trackers is to develop readout electronics that can provide additional timing information than those of traditional 3D trackers, while coping with the requirements of high granularity, high radiation tolerance, low noise, and low power. In this talk, the current status and future prospect of electronics development for 4D trackers will be presented.   

Radiation hardness study for future hadron collider

The detectors with high radiation tolerance are required by future hadron collider experiments which expect higher luminosity and higher center-of-mass energy. Improvements of radiation hardness of LGAD detectors are needed because they are expected to be used as inner trackers for future hadron collider experiments. 

One of the major problems of radiation hardness of LGAD detectors is acceptor removal:shallow dopants in the gain layer of LGAD detectors are reduced by radiation damage. Two novel ideas to protect dopants are tested in order to suppress the effects of acceptor removal. In this talk, concepts of  two ideas and the measurement results of proton irradiated samples are reported.