ATLAS Pixel Opto-Electronics
Instrumentation and Detectors
2016-04-26 v2 High Energy Physics - Experiment
Accelerator Physics
Abstract
We have developed two radiation-hard ASICs for optical data transmission in the ATLAS pixel detector at the LHC at CERN: a driver chip for a Vertical Cavity Surface Emitting Laser (VCSEL) diode for 80 Mbit/s data transmission from the detector, and a Bi-Phase Mark decoder chip to recover the control data and 40 MHz clock received optically by a PIN diode. We have successfully implemented both ASICs in 0.25 micron CMOS technology using enclosed layout transistors and guard rings for increased radiation hardness. We present results of the performance of these chips, including irradiation with 24 GeV protons up to 61 Mrad (2.3 x 10e15 p/cm^2).
Cite
@article{arxiv.physics/0504142,
title = {ATLAS Pixel Opto-Electronics},
author = {K. E. Arms and P. Buchholz and K. K. Gan and M. Holder and P. Jackson and M. Johnson and H. Kagan and R. Kass and A. M. Rahimi and A. Roggenbuck and C. Rush and P. Schade and S. Smith and R. Ter-Antonian and M. Ziolkowski and M. M. Zoeller},
journal= {arXiv preprint arXiv:physics/0504142},
year = {2016}
}
Comments
17 pages, 23 figures, submitted to NIM Added references. Added figure 15. Moved sec. IV to sec. II