TUO4AB —  Working Group E   (11-Nov-14   16:20—18:00)
Chair: F. Marti, FRIB, East Lansing, Michigan, USA

Paper	Title	Page
TUO4AB01	SPES Beam Dynamics	220
	A. Pisent, L. Bellan, M. Comunian INFN/LNL, Legnaro (PD), Italy L. Calabretta, A.D. Russo INFN/LNS, Catania, Italy B.B. Chalykh ITEP, Moscow, Russia
	At LNL INFN is under con­struc­tion a Rare Iso­tope Fa­cil­ity (SPES), based on a 35-70 MeV pro­ton cy­clotron, able to de­liver two beams with a total cur­rent up to 0.5 mA, an ISOL fis­sion tar­get sta­tion and the ex­ist­ing ALPI su­per­con­duct­ing ac­cel­er­a­tor as post ac­cel­er­a­tor (up to 10 MeV/u for A/q=7). In this talk the el­e­ments be­tween the pro­duc­tion tar­get and the ex­per­i­ments will be de­scribed: in par­tic­u­lar the se­lec­tion sys­tem, the ECR charge breeder, the sec­ond sep­a­ra­tion sys­tem and the new CW RFQ (80 MHz, 727 keV/u, in­ter­nal bunch­ing). The prob­lems that have been solved dur­ing the de­sign phase are partly com­mon to all RIB fa­cil­i­ties, like the ne­ces­sity to have high se­lec­tiv­ity and high trans­mis­sion for a beam of very low in­ten­sity, plus the spe­cific chal­lenges re­lated to the use of ALPI (with a re­duced lon­gi­tu­di­nal ac­cep­tance) and re­lated to the spe­cific lay out. At pre­sent the de­sign phase is con­cluded, and the pro­cure­ment pro­ce­dure for the charge breeder, the trans­fer lines and the RFQ are ad­vanced or will be launched in the next months. The main beam dy­nam­ics as­pects of the trans­fer lines (in­clud­ing mag­netic se­lec­tions) and RFQ will be dis­cussed in de­tail.
	Slides TUO4AB01 [7.036 MB]
TUO4AB02	Beam Physics Challenges in RAON	226
	D. Jeon, H. Jang, J.-H. Jang, H.J. Kim, I. Shin IBS, Daejeon, Republic of Korea J.G. Hwang, E.-S. Kim KNU, Deagu, Republic of Korea
	Con­struc­tion of the RAON heavy ion ac­cel­er­a­tor fa­cil­ity is under way in Korea. As high in­ten­sity 400 kW su­per­con­duct­ing linac (SCL) is em­ployed as a dri­ver, beam physics as­pects are care­fully stud­ied. The SCL is based on lat­tice con­sist­ing of cry­omod­ules and quadru­pole dou­blets. Beam dy­nam­ics stud­ies for the RAON has pro­gressed to cover start-to-end sim­u­la­tions and ma­chine im­per­fec­tion stud­ies con­firm­ing beam loss less than 1 W/m. At pre­sent, pro­to­typ­ing of major com­po­nents are pro­ceed­ing in­clud­ing 28 GHz ECR ion source, RFQ, su­per­con­duct­ing cav­i­ties, mag­nets and cry­omod­ules. First ar­ti­cle of pro­to­type su­per­con­duct­ing cav­i­ties have been de­liv­ered that were fab­ri­cated through do­mes­tic ven­dors. Pro­to­type HTS quadru­pole is under de­vel­op­ment. Progress re­port of the RAON ac­cel­er­a­tor sys­tems is pre­sented.
	Slides TUO4AB02 [3.751 MB]
TUO4AB03	Beam Dynamics Studies for the Facility for Rare Isotope Beams Driver Linac	231
	M. Ikegami, Z.Q. He, S.M. Lidia, Z. Liu, S.M. Lund, F. Marti, G. Pozdeyev, J. Wei, Y. Yamazaki, Y. Zhang, Q. Zhao FRIB, East Lansing, Michigan, USA
	Funding: Work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661 and the National Science Foundation under Grant No. PHY-1102511. Fa­cil­ity for Rare Iso­tope Beams (FRIB) is a high-power heavy ion ac­cel­er­a­tor fa­cil­ity presently under con­struc­tion at Michi­gan State Uni­ver­sity lo­cated in Michi­gan. FRIB con­sists of a CW dri­ver linac, ex­per­i­men­tal fa­cil­ity, the linac ac­cel­er­ates ions up to ura­nium with the en­ergy of 200 MeV/u and with the beam power of 400 kW. As the as­sumed beam power is more than two order of mag­ni­tude higher than the ex­ist­ing heavy ion linac fa­cil­i­ties, var­i­ous beam dy­nam­ics chal­lenges are as­sumed for the dri­ver linac. In this paper, beam dy­namic chal­lenges for FRIB dri­ver linac and un­der­go­ing stud­ies to ad­dress them are re­viewed, which would in­clude those re­lated to ma­chine pro­tec­tion and col­li­ma­tion of halos after a strip­per.