002765940 001__ 2765940
002765940 005__ 20210505223825.0
002765940 0248_ $$aoai:cds.cern.ch:2765940$$pcerncds:FULLTEXT
002765940 037__ $$aCERN-ACC-NOTE-2021-0013
002765940 041__ $$aeng
002765940 100__ $$0AUTHOR|(CDS)2108501$$0AUTHOR|(SzGeCERN)621936$$aAppleby, Robert Barrie$$mRobert.Appleby@cern.ch$$uUniversity of Manchester (GB)
002765940 245__ $$aConsiderations for a RF separated K+ beam for NA62
002765940 260__ $$c2021
002765940 269__ $$aGeneva$$bCERN$$c30 Apr 2021
002765940 300__ $$a38 p
002765940 520__ $$aIn this document we assess the potential of RF separation to increase the kaon content of the high-intensity secondary beam to the NA62 experiment in the CERN North Area. The present mixed beam provides a nominal kaon flux of 45 MHz out of a total beam intensity of about 750 MHz. The experiment wishes to increase the kaon flux, without too much increasing the overall beam intensity which might otherwise exceed the rate capability of several detectors and cause increased backgrounds to the detector. To avoid a strong reduction of the kaon flux by decays in a very long beam line, a compact RF separator approach is evaluated as a baseline. Alternative possibilities are briefly described at the end of the document. It turns out that the performance will not meet expectations and that therefore conventional methods to increase the beam intensity will have to be pursued. With the relatively short length proposed, the K phase difference is too small to separate the kaons from the large emittance mixed beam. A larger phase difference would imply more length and hence a drastic reduction of the kaon component due to decays.
002765940 595__ $$aCERN EDS
002765940 595__ $$zUNCL
002765940 65017 $$2SzGeCERN$$aAccelerators and Storage Rings
002765940 65017 $$2SzGeCERN$$aDetectors and Experimental Techniques
002765940 6531_ $$9CERN$$aBeam Optics, Beam Transfer, North Area, Radio-Frequency
002765940 690C_ $$aCERN
002765940 690C_ $$aINTNOTE
002765940 690C_ $$aPUBLATS
002765940 693__ $$fCERN North Area
002765940 700__ $$0AUTHOR|(CDS)2067286$$0AUTHOR|(SzGeCERN)643901$$aBernhard, Johannes$$mjohannes.bernhard@cern.ch$$uCERN
002765940 700__ $$0AUTHOR|(CDS)2108486$$0AUTHOR|(SzGeCERN)385004$$aDainton, John Bourke$$mjohn.dainton@cockcroft.ac.uk$$uLancaster University (GB)
002765940 700__ $$0AUTHOR|(CDS)2051222$$0AUTHOR|(SzGeCERN)394445$$aGatignon, Lau$$mLau.Gatignon@cern.ch$$uLancaster University (GB)
002765940 700__ $$0AUTHOR|(CDS)2074508$$0AUTHOR|(SzGeCERN)595205$$aGoudzovski, Evgueni$$mEvgueni.Goudzovski@cern.ch$$uUniversity of Birmingham (GB)
002765940 700__ $$0AUTHOR|(CDS)2085212$$0AUTHOR|(SzGeCERN)698745$$aBurton, Graeme Alan$$mgrburton@cern.ch
002765940 700__ $$0AUTHOR|(CDS)2051422$$0AUTHOR|(SzGeCERN)455628$$aJones, Rhodri$$mRhodri.Jones@cern.ch$$uCERN
002765940 700__ $$0AUTHOR|(CDS)2069627$$0AUTHOR|(SzGeCERN)408167$$aLazzeroni, Cristina$$mCristina.Lazzeroni@cern.ch$$uUniversity of Birmingham (GB)
002765940 700__ $$0AUTHOR|(CDS)2076636$$0AUTHOR|(SzGeCERN)658765$$aRomano, Angela$$mAngela.Romano@cern.ch$$uUniversity of Birmingham (GB)
002765940 700__ $$0AUTHOR|(INSPIRE)INSPIRE-00271425$$0AUTHOR|(CDS)2079159$$0AUTHOR|(SzGeCERN)483138$$aRuggiero, Gennaro$$mgennaro@cern.ch
002765940 700__ $$0AUTHOR|(CDS)2220828$$0AUTHOR|(SzGeCERN)763157$$aTygier, Sam$$msatygier@cern.ch
002765940 710__ $$5ATS
002765940 710__ $$aCERN. Geneva. ATS Department
002765940 859__ $$fangelique.foussat@cern.ch
002765940 8564_ $$82292256$$s2273629$$uhttp://cds.cern.ch/record/2765940/files/k12rfbeam-ATS-NA62-2021-04.pdf
002765940 916__ $$sn$$w202118
002765940 960__ $$a12
002765940 963__ $$aPUBLIC
002765940 980__ $$aINTNOTEATSPUBL
002765940 980__ $$aNOTE
002765940 980__ $$aTECHNOTE