Status and overview of development of the Silicon Pixel Detector for the PHENIX experiment at the BNL RHIC

TL;DR

This paper reports the development status of a silicon pixel detector designed to enhance the PHENIX experiment at BNL RHIC, focusing on low-mass design, readout electronics, and integration challenges.

Contribution

It introduces a new silicon pixel detector with low-mass readout and electronics tailored for the PHENIX experiment, improving its physics capabilities.

Findings

Successful development of a low-mass readout bus

Implementation of readout chips compatible with PHENIX DAQ

Enhanced detector coverage around the collision point

Abstract

We have developed a silicon pixel detector to enhance the physics capabilities of the PHENIX experiment. This detector, consisting of two layers of sensors, will be installed around the beam pipe at the collision point and covers a pseudo-rapidity of | \eta | < 1.2 and an azimuth angle of | \phi | ~ 2{\pi}. The detector uses 200 um thick silicon sensors and readout chips developed for the ALICE experiment. In order to meet the PHENIX DAQ readout requirements, it is necessary to read out 4 readout chips in parallel. The physics goals of PHENIX require that radiation thickness of the detector be minimized. To meet these criteria, the detector has been designed and developed. In this paper, we report the current status of the development, especially the development of the low-mass readout bus and the front-end readout electronics.