Since the DREAM project started in 2002 as a generic detector R&D project, Test Beams have been taken place at the Test Beam area, CERN.
A prototype detector (the Dual-Readout Module) at Texas Tech University was built and it was shipped to CERN.
In 2003 and 2004, it was successfully tested at the SPS, CERN and the excellent results were obtained in these tests.
During these tests, the fluctuations in the electromagnetic content of hadron showers were successfully studied and the effects of these fluctuations on hadronic calorimeter performance were successfully eliminated.
In 2006-2008, a series of successful studies of crystal calorimeters were conducted and these studies enabled us to split the signals from these crystals into scintillation and Cerenkov components.
It was verified that the Dual-Readout Method can be applied to crystal calorimeters.
In 2009 and 2010, we also had Test Beams and as of 2011, 23 papers about the DREAM project were published to Nucl. Instr. and Meth. A.
From 2010, new DREAM modules have been built in Universita di Pisa and INFN Sezione di Pisa and is ready to be tested at CERN.
Our collaborators efforts such as shifts, electronics and experimental setup, and data taking during Test Beam periods, building DAQ system, ntuple making for offline analyses and so on, led us to the successful DREAM project. Also we should not forget the effort of SPS to make high-quality beam.
SPS supplies a beam monitor and schedules for Test Beam areas via web.
Now, the DREAM project is now the official CERN experiment know as the RD52 experiment.
The RD52 collaboration is making best efforts to build calorimetry for high-quality energy measurement.