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Report No.

High intensity beam studies for the new MEBT1 design

Okabe, Kota  ; Liu, Y.*; Otani, Masashi*; Moriya, Katsuhiro  ; Shibata, Takanori*; Chimura, Motoki*; Hirano, Koichiro  ; Oguri, Hidetomo  ; Kinsho, Michikazu  

To realize more stable operation of the J-PARC accelerators, we have a re-design plan of an MEBT1 (Medium Energy Beam Transport). At the J-PARC Linac, the MEBT1 has transverse and longitudinal beam matching section for the DTLs. However there are some locally activated spots in DTL area at the current beam power level. To reduce beam loss during a beam acceleration at the DTLs is a most important task for a stable user operation. The first thing we should do is investigation a connection between beam quality in the MEBT1 and parameters of the upstream hardware. In this presentation, we will report a high intensity beam study results at the MEBT1.



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