Author: Kramer, T.
Paper Title Page
MOPFI052 A New Lead Ion Injection System for the CERN SPS with 50 ns Rise Time 398
 
  • B. Goddard, O. Aberle, J. Borburgh, E. Carlier, K. Cornelis, L. Ducimetière, L.K. Jensen, T. Kramer, D. Manglunki, A. Mereghetti, V. Mertens, D. Nisbet, B. Salvant, L. Sermeus
    CERN, Geneva, Switzerland
  
  The LHC High Lu­mi­nos­ity up­grade pro­ject in­cludes a per­for­mance up­grade for heavy ions. One of the pre­sent per­for­mance lim­i­ta­tions is the rise time of the SPS in­jec­tion kicker sys­tem, which im­poses a spac­ing of at least 220 ns be­tween in­jected bunch trains at the op­er­a­tional rigid­ity. A re­duc­tion of this rise time to 50 ns for lead ions is re­quested as part of the suite of mea­sures needed to in­crease the pre­sent de­sign per­for­mance by a fac­tor three. A new in­jec­tion sys­tem based on a fast pulsed sep­tum and a fast kicker has been pro­posed to ful­fil this rise time re­quire­ment, and to meet all the con­straints as­so­ci­ated with the ex­ist­ing high in­ten­sity pro­ton in­jec­tion in the same re­gion. This paper de­scribes the con­cept and the re­quired equip­ment pa­ra­me­ters, and ex­plores the im­pli­ca­tions of such a sys­tem for SPS op­er­a­tion.  
 
WEPEA060 Plans for the Upgrade of CERN's Heavy Ion Complex 2645
 
  • D. Manglunki, M. E. Angoletta, H. Bartosik, A. Blas, D. Bodart, M.A. Bodendorfer, T. Bohl, J. Borburgh, E. Carlier, J.-M. Cravero, H. Damerau, L. Ducimetière, A. Findlay, R. Garoby, S.S. Gilardoni, B. Goddard, S. Hancock, E.B. Holzer, J.M. Jowett, T. Kramer, D. Kuchler, A.M. Lombardi, Y. Papaphilippou, S. Pasinelli, R. Scrivens, G. Tranquille
    CERN, Geneva, Switzerland
  
  To reach a lu­mi­nos­ity higher than 6×1027 Hz/cm2 for Pb-Pb col­li­sions, as ex­pected by the ALICE ex­per­i­ment after its up­grade dur­ing the 2nd Long LHC Shut­down (LS2), sev­eral up­grades will have to be per­formed in the CERN ac­cel­er­a­tor com­plex, from the source to the LHC it­self. This paper first de­tails the pre­sent lim­i­ta­tions and then de­scribes the strat­egy for the dif­fer­ent ma­chines in the ion in­jec­tor chain. Both fill­ing schemes and pos­si­ble hard­ware up­grades are dis­cussed.  
 
THPFI002 Construction and Initial Tests of the Electrostatic Septa for MedAustron 3288
 
  • J. Borburgh, R.A. Barlow, C. Boucly, A. Prost
    CERN, Geneva, Switzerland
  • U. Dorda, T. Kramer, T. Stadlbauer
    EBG MedAustron, Wr. Neustadt, Austria
  
  For the MedAus­tron fa­cil­ity under con­struc­tion in Wiener Neustadt/Aus­tria, two elec­tro­sta­tic septa are built in col­lab­o­ra­tion with CERN. These septa will be used for the multi-turn in­jec­tion of pro­tons and ions, as well as for the slow ex­trac­tion from the syn­chro­tron. The power sup­plies are de­signed to com­bine the re­quired pre­ci­sion with the ca­pa­bil­ity to cycle suf­fi­ciently fast to keep up with the ma­chine cycle. The septa are being as­sem­bled at CERN. Ini­tial tests have been done on the re­mote dis­place­ment sys­tem to val­i­date its pre­ci­sion and com­mu­ni­ca­tion pro­to­col with the MedAus­tron con­trol sys­tem. Sub­se­quently the septa are tested for vac­uum per­for­mance and then HV con­di­tioned. The con­struc­tion of the septa, the re­quire­ments of the power sup­plies and the high volt­age cir­cuit will be de­scribed. Re­sults of the ini­tial lab­o­ra­tory tests, prior to in­stal­la­tion in the ac­cel­er­a­tor, will be given.