the top LHC energy of 5.5 TeV/nucleon at luminosities in excess of 1027 Hz/cm2. Long shutdown 2 (2018) The ALICE collaboration has plans for a major upgrade during the next long shutdown, LS2, currently scheduled for 2018. Then the entire silicon tracker will be replaced by a monolithic-pixel tracker system built from ALPIDE chips; the time-projection chamber will be upgraded with gaseous electron-multiplier (GEM) detectors for continuous read-out and the use of new microelectronics; and all of the other subdetectors and the online systems will prepare for a 100-fold increase in the number of events written to tape. References External links Official ALICE Public Webpage at CERN Interactive Timeline for ALICE 20th anniversary ALICE section on US/LHC Website CERN experiments Large Hadron Collider