Results of the intercomparison campaign organized by APAT to the 2004-2005 about gamma measures on sources flat disk

The report describes the results of the intercomparison campaign 2004-2005 organized by APAT for the laboratories of the network RESORAD and carry out by  INMRI / ENEA. This campaign was proposed within the XXXVII Meeting of the National Surveillance Network of Control on Environmental Radioactivity, held in Rome December 16, 2003. Subject of the campaign was an exercise on laboratory performance about"Measures of gamma spectrometry sources in flat disk."