Wednesday 28 Novemeber 2012 Speaker: Norman Gee (PPD/RAL) Title: "ATLAS Upgrades for the high-luminosity frontier" Abstract:After the first successful years of running at the LHC, the ATLAS Collaboration is preparing for the new energy and higher luminosity promised in the LHC upgrade programme. Almost all parts of ATLAS will see some changes. In this seminar I will attempt a whistle-stop tour of the experiment upgrades, as seen from the trigger perspective which motivates many of them.