554721 SzGeCERN 20240918101602.0 oai:cds.cern.ch:554721 cerncds:FULLTEXT cerncds:CERN:FULLTEXT cerncds:CERN CERN-SL-2002-011-ECT eng CERN Library SL-2002-011 Ferrari, A CERN A Comprehensive Study of the nTOF Background at CERN 2002 Geneva CERN May 2002 6 p paper Report The first experimental measurements performed at the nTOF1,2 facility at CERN have unveiled an important background, 50 to 100 times higher than expected.3 This background has consequences on capture measurements both in terms of accuracy and required beam time. Extensive measurements have been performed in order to better understand the background. However, it was not possible to identify the mechanism responsible for producing it. The present paper describes the work carried out in order to identify the origin of the background, and the following investigation of the possible sources through extensive Monte Carlo simulations. Neutrons generated by negative muon capture have been identified as the dominant background source. Possible remedies have been found and studied in some detail. An extensive experimental program has verified this hypothesis. CERN EDS 20020626SLAC CERN-SL OA CERN-SPSARCHIVE SL-ECT SPSARCHIVE SzGeCERN Nuclear Physics CERN PREPRINT CERN PS nTOF Rubbia, Carlo INFN, Pavia Pavia U. Vlachoudis, V CERN SL CERN. Geneva. SL (SPS+LHC) Division CERN ARC Library CERN-SL-2002-011-ECT Library Database O0527 27489 1033586 http://cds.cern.ch/record/554721/files/sl-2002-011.ps.gz Access to fulltext document 27489 121180 http://cds.cern.ch/record/554721/files/sl-2002-011.pdf Access to fulltext document jennifer.clark@cern.ch n 200226 11 20100225 1359 CER01 20020529 564350 santafe20020414 PUBLIC 0001 002312294CER PREPRINT ConferencePaper