Optical Link of the Atlas Pixel Detector
K.K. Gan, et al
TL;DR
This paper discusses the development and testing of radiation-hard optical links for the ATLAS pixel detector, including irradiation studies and production insights for components used in high-radiation environments.
Contribution
It presents irradiation results and production experience for radiation-hard optical link components used in the ATLAS pixel detector.
Findings
Radiation-hard receiver chips maintain performance after irradiation.
Successful operation of optical links up to 32 Mrad radiation dose.
Insights into manufacturing and deployment of opto-boards in high-radiation environments.
Abstract
The on-detector optical link of the ATLAS pixel detector contains radiation-hard receiver chips to decode bi-phase marked signals received on PIN arrays and data transmitter chips to drive VCSEL arrays. The components are mounted on hybrid boards (opto-boards). We present results from the irradiation studies with 24 GeV protons up to 32 Mrad (1.2 x 10^15 p/cm^2) and the experience from the production.
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