Keyword: ion
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MOBAUST04 The RHIC and RHIC Pre-Injectors Controls Systems: Status and Plans controls, proton, electron, luminosity 13
 
  • K.A. Brown, Z. Altinbas, J. Aronson, S. Binello, I.G. Campbell, M.R. Costanzo, T. D'Ottavio, W. Eisele, A. Fernando, B. Frak, W. Fu, C. Ho, L.T. Hoff, J.P. Jamilkowski, P. Kankiya, R.A. Katz, S.A. Kennell, J.S. Laster, R.C. Lee, G.J. Marr, A. Marusic, R.J. Michnoff, J. Morris, S. Nemesure, B. Oerter, R.H. Olsen, J. Piacentino, G. Robert-Demolaize, V. Schoefer, R.F. Schoenfeld, S. Tepikian, C. Theisen, C.M. Zimmer
    BNL, Upton, Long Island, New York, USA
  
  Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy.
Brookhaven Na­tion­al Lab­o­ra­to­ry (BNL) is one of the pre­mier high en­er­gy and nu­cle­ar physics lab­o­ra­to­ries in the world and has been a lead­er in ac­cel­er­a­tor based physics re­search for well over half a cen­tu­ry. For the past ten years ex­per­i­ments at the Rel­a­tivis­tic Heavy Ion Col­lid­er (RHIC) have record­ed data from col­li­sions of heavy ions and po­lar­ized pro­tons, lead­ing to major dis­cov­er­ies in nu­cle­ar physics and the spin dy­nam­ics of quarks and glu­ons. BNL is also the site of one of the old­est al­ter­nat­ing gra­di­ent syn­chrotrons, the AGS, which first op­er­at­ed in 1960. The ac­cel­er­a­tor con­trols sys­tems for these in­stru­ments span mul­ti­ple gen­er­a­tions of tech­nolo­gies. In this re­port we will de­scribe the cur­rent sta­tus of the Col­lid­er-Ac­cel­er­a­tor De­part­ment con­trols sys­tems, which are used to con­trol seven dif­fer­ent ac­cel­er­a­tor fa­cil­i­ties (from the LINAC and Tan­dem van de Graafs to RHIC) and mul­ti­ple sci­ence pro­grams (high en­er­gy nu­cle­ar physics, high en­er­gy po­lar­ized pro­ton physics, NASA pro­grams, iso­tope pro­duc­tion, and mul­ti­ple ac­cel­er­a­tor re­search and de­vel­op­ment pro­jects). We will de­scribe the sta­tus of cur­rent pro­jects, such as the just com­plet­ed Elec­tron Beam Ion Source (EBIS), our R&D pro­grams in su­per­con­duct­ing RF and an En­er­gy Re­cov­ery LINAC (ERL), in­no­va­tions in feed­back sys­tems and bunched beam stochas­tic cool­ing at RHIC, and plans for fu­ture con­trols sys­tem de­vel­op­ments. 		 
slides icon Slides MOBAUST04 [6.386 MB]  
 
MOMMU009 Upgrade of the Server Architecture for the Accelerator Control System at the Heidelberg Ion Therapy Center database, controls, network, proton 78
 
  • J.M. Mosthaf, Th. Haberer, S. Hanke, K. Höppner, A. Peters, S. Stumpf
    HIT, Heidelberg, Germany
  
  The Hei­del­berg Ion Ther­a­py Cen­ter (HIT) is a heavy ion ac­cel­er­a­tor fa­cil­i­ty lo­cat­ed at the Hei­del­berg uni­ver­si­ty hos­pi­tal and in­tend­ed for can­cer treat­ment with heavy ions and pro­tons. It pro­vides three treat­ment rooms for ther­a­py of which two using hor­i­zon­tal beam noz­zles are in use and the unique gantry with a 360° ro­tat­ing beam port is cur­rent­ly under com­mis­sion­ing. The pro­pri­etary ac­cel­er­a­tor con­trol sys­tem runs on sev­er­al clas­si­cal serv­er ma­chines, in­clud­ing a main con­trol serv­er, a database serv­er run­ning Or­a­cle, a de­vice set­tings mod­el­ing serv­er (DSM) and sev­er­al gate­way servers for aux­il­iary sys­tem con­trol. As the load on some of the main sys­tems, es­pe­cial­ly the database and DSM servers, has be­come very high in terms of CPU and I/O load, a change to a more up to date blade serv­er en­clo­sure with four re­dun­dant blades and a 10G­bit in­ter­nal net­work ar­chi­tec­ture has been de­cid­ed. Due to bud­getary rea­sons, this en­clo­sure will at first only re­place the main con­trol, database and DVM servers and con­sol­i­date some of the ser­vices now run­ning on aux­il­iary servers. The in­ter­nal con­fig­urable net­work will im­prove the com­mu­ni­ca­tion be­tween servers and database. As all blades in the en­clo­sure are con­fig­ured iden­ti­cal­ly, one ded­i­cat­ed spare blade is used to pro­vide re­dun­dan­cy in case of hard­ware fail­ure. Ad­di­tion­al­ly we plan to use vir­tu­al­iza­tion soft­ware to fur­ther im­prove re­dun­dan­cy and con­sol­i­date the ser­vices run­ning on gate­ways and to make dy­nam­ic load bal­anc­ing avail­able to ac­count for dif­fer­ent per­for­mance needs e.g. in com­mis­sion­ing or ther­a­py use of the ac­cel­er­a­tor.  
slides icon Slides MOMMU009 [0.233 MB]  
poster icon Poster MOMMU009 [1.132 MB]  
 
MOPKS003 High Resolution Ion Beam Profile Measurement System target, LabView, ion-source, detector 164
 
  • J.G. Lopes
    ISEL, Lisboa, Portugal
  • F.A. Corrêa Alegria
    IT, Lisboa, Portugal
  • J.G. Lopes, L.M. Redondo
    CFNUL, Lisboa, Portugal
  • J. Rocha
    ITN, Sacavém, Portugal
  
  A high res­o­lu­tion sys­tem de­signed for mea­sur­ing the ion beam pro­file in the ion im­planter in­stalled at the Ion Beam Lab­o­ra­to­ry of the Tech­no­log­i­cal Nu­cle­ar In­sti­tute (ITN) is de­scribed. Low en­er­gy, high cur­rent ion im­plan­ta­tion is be­com­ing in­creas­ing­ly im­por­tant in to­days tech­nol­o­gy. In order to achieve this, the use of elec­tro­stat­ic lens to de­cel­er­ate a fo­cused ion beam is es­sen­tial, but one needs to mea­sure, with high res­o­lu­tion, the 2D beam pro­file. Tra­di­tion­al beam pro­file mon­i­tors using a ma­trix of de­tec­tors, like Fara­day Cups, were used. They are, in essence, dis­crete sys­tems since they only mea­sure the beam in­ten­si­ty in fixed po­si­tions. In order to in­crease the res­o­lu­tion fur­ther, a new sys­tem was de­vel­oped that does a con­tin­u­ous mea­sure­ment of the pro­file, made of a cir­cu­lar alu­minum disc with a curved slit which ex­tends ap­prox­i­mate­ly from the cen­ter of the disc to its pe­riph­ery. The disc is at­tached to the ion im­planter tar­get, which is ca­pa­ble of ro­tat­ing on its axis. A coop­er wire, po­si­tioned be­hind the slit, works like a Fara­day Cup and the cur­rent gen­er­at­ed, pro­por­tion­al to the beam in­ten­si­ty, is mea­sured. As the ion im­planter is ca­pa­ble of scan­ning the beam over the tar­get, the com­bi­na­tion of ver­ti­cal beam scan­ning with alu­minum disc ro­ta­tion al­lows the beam pro­file to be mea­sured con­tin­u­ous­ly in two di­men­sions. Hence, the de­vel­oped sys­tem in­clud­ing the com­put­er con­trolled po­si­tion­ing of the beam over the mov­ing curved slit, the data ac­qui­si­tion and the beam pro­file rep­re­sen­ta­tion, is de­scribed.  
poster icon Poster MOPKS003 [0.744 MB]  
 
MOPMN005 ProShell – The MedAustron Accelerator Control Procedure Framework interface, controls, framework, ion-source 246
 
  • R. Moser, A.B. Brett, M. Marchhart, C. Torcato de Matos
    EBG MedAustron, Wr. Neustadt, Austria
  • J. Dedič, S. Sah
    Cosylab, Ljubljana, Slovenia
  • J. Gutleber
    CERN, Geneva, Switzerland
  
  MedAus­tron is a cen­tre for ion-ther­a­py and re­search in cur­rent­ly under con­struc­tion in Aus­tria. It fea­tures a syn­chrotron par­ti­cle ac­cel­er­a­tor for pro­ton and car­bon-ion beams. This paper pre­sents the ar­chi­tec­ture and con­cepts for im­ple­ment­ing a pro­ce­dure frame­work called ProShell. Pro­ce­dures to au­to­mate high level con­trol and anal­y­sis tasks for com­mis­sion­ing and dur­ing op­er­a­tion are mod­elled with Petri-Nets and user code is im­ple­ment­ed with C#. It must be pos­si­ble to ex­e­cute pro­ce­dures and mon­i­tor their ex­e­cu­tion progress re­mote­ly. Pro­ce­dures in­clude start­ing up de­vices and sub­sys­tems in a con­trolled man­ner, con­fig­ur­ing, op­er­at­ing O(1000) de­vices and tun­ing their op­er­a­tional set­tings using it­er­a­tive op­ti­miza­tion al­go­rithms. De­vice in­ter­faces must be ex­ten­si­ble to ac­com­mo­date yet unan­tic­i­pat­ed func­tion­al­i­ties. The frame­work im­ple­ments a tem­plate for pro­ce­dure spe­cif­ic graph­i­cal in­ter­faces to ac­cess de­vice spe­cif­ic in­for­ma­tion such as mon­i­tor­ing data. Pro­ce­dures in­ter­act with phys­i­cal de­vices through proxy soft­ware com­po­nents that im­ple­ment one of the fol­low­ing in­ter­faces: (1) state-less or (2) state-driv­en de­vice in­ter­face. Com­po­nents can ex­tend these de­vice in­ter­faces fol­low­ing an ob­ject-ori­ent­ed sin­gle in­her­i­tance scheme to pro­vide aug­ment­ed, de­vice-spe­cif­ic in­ter­faces. As only two basic de­vice in­ter­faces need to be de­fined at an early pro­ject stage, de­vices can be in­te­grat­ed grad­u­al­ly as com­mis­sion­ing pro­gress­es. We pre­sent the ar­chi­tec­ture and de­sign of ProShell and ex­plain the pro­gram­ming model by giv­ing the sim­ple ex­am­ple of the ion source spec­trum anal­y­sis pro­ce­dure.  
poster icon Poster MOPMN005 [0.948 MB]  
 
MOPMN012 The Electronic Logbook for LNL Accelerators experiment, software, Linux, booster 260
 
  • S. Canella, O. Carletto
    INFN/LNL, Legnaro (PD), Italy
  
  In spring 2009 all run-time data con­cern­ing the par­ti­cle ac­cel­er­a­tors at LNL (Lab­o­ra­tori Nazion­ali di Leg­naro) were still reg­is­tered main­ly on paper. TAN­DEM and its Neg­a­tive Source data were logged on a large for­mat paper log­book, for ALPI boost­er and PIAVE in­jec­tor with its Pos­i­tive ECR Source a num­ber of in­de­pen­dent paper note­books were used, to­geth­er with plain data files con­tain­ing raw in­stant snap­shots of each RF su­per­con­duc­tive ac­cel­er­a­tors. At that time a de­ci­sion was taken to build a new tool for a gen­er­al elec­tron­ic reg­is­tra­tion of ac­cel­er­a­tors run-time data. The re­sult of this ef­fort, the LNL elec­tron­ic log­book, is pre­sent­ed here .  
poster icon Poster MOPMN012 [8.543 MB]  
 
MOPMN029 Spiral2 Control Command: First High-level Java Applications Based on the OPEN-XAL Library database, software, controls, EPICS 308
 
  • P. Gillette, E. Lemaître, G. Normand, L. Philippe
    GANIL, Caen, France
  
  The Ra­dioac­tive Ions Beam SPI­RAL2 fa­cil­i­ty will be based on a supra-con­duct­ing driv­er pro­vid­ing deuterons or heavy ions beams at dif­fer­ent en­er­gies and in­ten­si­ties. Using then the ISOLD method, ex­ot­ic nu­clei beams will be sent ei­ther to new physics fa­cil­i­ties or to the ex­ist­ing GANIL ex­per­i­men­tal areas. To tune this large range of beams, high-lev­el ap­pli­ca­tions will be main­ly de­vel­oped in Java lan­guage. The choice of the OPEN-XAL ap­pli­ca­tion frame­work, de­vel­oped at the Spal­la­tion Neu­tron Source (SNS), has proven to be very ef­fi­cient and great­ly helps us to de­sign our first soft­ware pieces to tune the ac­cel­er­a­tor. The first part of this paper pre­sents some new ap­pli­ca­tions: "Min­imi­sa­tion" which aims at op­ti­miz­ing a sec­tion of the ac­cel­er­a­tor; a gen­er­al pur­pose soft­ware named "Hook" for in­ter­act­ing with equip­ment of any kind; and an ap­pli­ca­tion called "Pro­fils" to vi­su­al­ize and con­trol the Spi­ral2 beam wire harps. As tun­ing op­er­a­tion has to deal with con­fig­u­ra­tion and archiv­ing is­sues, databas­es are an ef­fec­tive way to man­age data. There­fore, two databas­es are being de­vel­oped to ad­dress these prob­lems for the SPI­RAL2 com­mand con­trol: one is in charge of de­vice con­fig­u­ra­tion up­stream the Epics databas­es while an­oth­er one is in charge of ac­cel­er­a­tor con­fig­u­ra­tion (lat­tice, op­tics and set of val­ues). The last part of this paper aims at de­scrib­ing these databas­es and how java ap­pli­ca­tions will in­ter­act with them.  
poster icon Poster MOPMN029 [1.654 MB]  
 
MOPMS007 Deep-Seated Cancer Treatment Spot-Scanning Control System heavy-ion, database, hardware, controls 333
 
  • W. Zhang, S. An, G.H. Li, W.F. Liu, W.M. Qiao, Y.P. Wang, F. Yang
    IMP, Lanzhou, People's Republic of China
  
  Sys­tem is main­ly com­posed of hard­ware, the data for a given wave­form scan­ning power sup­ply con­troller, dose-con­trolled count­ing cards, and event gen­er­a­tor sys­tem. Soft­ware con­sists of the fol­low­ing com­po­nents: gen­er­at­ing tumor shape and the cor­re­spond­ing wave­form data sys­tem, wave­form con­troller (ARM and DSP) pro­gram, count­ing cards FPGA pro­ce­dures, event and data syn­chro­niza­tion for trans­mis­sion COM pro­gram.  
 
MOPMS030 Improvement of the Oracle Setup and Database Design at the Heidelberg Ion Therapy Center database, controls, operation, hardware 393
 
  • K. Höppner, Th. Haberer, J.M. Mosthaf, A. Peters
    HIT, Heidelberg, Germany
  • G. Fröhlich, S. Jülicher, V.RW. Schaa, W. Schiebel, S. Steinmetz
    GSI, Darmstadt, Germany
  • M. Thomas, A. Welde
    Eckelmann AG, Wiesbaden, Germany
  
  The HIT (Hei­del­berg Ion Ther­a­py) cen­ter is an ac­cel­er­a­tor fa­cil­i­ty for can­cer ther­a­py using both car­bon ions and pro­tons, lo­cat­ed at the uni­ver­si­ty hos­pi­tal in Hei­del­berg. It pro­vides three ther­a­py treat­ment rooms: two with fixed beam exit (both in clin­i­cal use), and a unique gantry with a ro­tat­ing beam head, cur­rent­ly under com­mis­sion­ing. The back­bone of the pro­pri­etary ac­cel­er­a­tor con­trol sys­tem con­sists of an Or­a­cle database run­ning on a Win­dows serv­er, stor­ing and de­liv­er­ing data of beam cy­cles, error log­ging, mea­sured val­ues, and the de­vice pa­ram­e­ters and beam set­tings for about 100,000 com­bi­na­tions of en­er­gy, beam size and par­ti­cle num­ber used in treat­ment plans. Since going op­er­a­tional, we found some per­for­mance prob­lems with the cur­rent database setup. Thus, we start­ed an anal­y­sis in co­op­er­a­tion with the in­dus­tri­al sup­pli­er of the con­trol sys­tem (Eck­el­mann AG) and the GSI Helmholtzzen­trum für Schw­e­ri­o­nen­forschung. It fo­cused on the fol­low­ing top­ics: hard­ware re­sources of the DB serv­er, con­fig­u­ra­tion of the Or­a­cle in­stance, and a re­view of the database de­sign that un­der­went sev­er­al changes since its orig­i­nal de­sign. The anal­y­sis re­vealed is­sues on all fields. The out­dat­ed serv­er will be re­placed by a state-of-the-art ma­chine soon. We will pre­sent im­prove­ments of the Or­a­cle con­fig­u­ra­tion, the op­ti­miza­tion of SQL state­ments, and the per­for­mance tun­ing of database de­sign by adding new in­dex­es which proved di­rect­ly vis­i­ble in ac­cel­er­a­tor op­er­a­tion, while data in­tegri­ty was im­proved by ad­di­tion­al for­eign key con­straints.  
poster icon Poster MOPMS030 [2.014 MB]  
 
MOPMS035 A Beam Profiler and Emittance Meter for the SPES Project at INFN-LNL diagnostics, EPICS, emittance, software 412
 
  • G. Bassato, A. Andrighetto, N. Conforto, M.G. Giacchini, J.A. Montano, M. Poggi, J.A. Vásquez
    INFN/LNL, Legnaro (PD), Italy
  
  The beam di­ag­nos­tics sys­tem cur­rent­ly in use at LNL in the su­per­con­duct­ing Linac has been up­grad­ed for the SPES pro­ject. The con­trol soft­ware has been rewrit­ten using EPICS tools and a new emit­tance meter has been de­vel­oped. The beam de­tec­tor is based on wire grids, the IOC is im­ple­ment­ed in a VME sys­tem run­ning under Vx­works and the graph­ic in­ter­face is based on CSS. The sys­tem is now in op­er­a­tion in the SPES Tar­get Lab­o­ra­to­ry for the char­ac­ter­i­za­tion of beams pro­duced by the new ion source.  
poster icon Poster MOPMS035 [0.367 MB]  
 
MOPMU005 Overview of the Spiral2 Control System Progress controls, EPICS, database, interface 429
 
  • E. Lécorché, P. Gillette, C.H. Haquin, E. Lemaître, L. Philippe, D.T. Touchard
    GANIL, Caen, France
  • J.F. Denis, F. Gougnaud, J.-F. Gournay, Y. Lussignol, P. Mattei
    CEA/DSM/IRFU, France
  • P.G. Graehling, J.H. Hosselet, C. Maazouzi
    IPHC, Strasbourg Cedex 2, France
  
  Spi­ral2 whose con­struc­tion phys­i­cal­ly start­ed at the be­gin­ning of this year at Ganil (Caen, France) will be a new Ra­dioac­tive Ion Beams fa­cil­i­ty to ex­tend sci­en­tif­ic knowl­edge in nu­cle­ar physics, as­tro­physics and in­ter­dis­ci­plinary re­search­es. The pro­ject con­sists of a high in­ten­si­ty mul­ti-ion ac­cel­er­a­tor driv­er de­liv­er­ing beams to a high power pro­duc­tion sys­tem to gen­er­ate the Ra­dioac­tive Ion Beams being then post-ac­cel­er­at­ed and used with­in the ex­ist­ing Ganil com­plex. Re­sult­ing from the col­lab­o­ra­tion be­tween sev­er­al lab­o­ra­to­ries, Epics has been adopt­ed as the stan­dard frame­work for the con­trol com­mand sys­tem. At the lower level, pieces of equip­ment are han­dled through VME/Vx­Works chas­sis or di­rect­ly in­ter­faced using the Mod­bus/TCP pro­to­col; also, Siemens pro­grammable logic con­trollers are tight­ly cou­pled to the con­trol sys­tem, being in charge of spe­cif­ic de­vices or hard­ware safe­ty sys­tems. The graph­i­cal user in­ter­face layer in­te­grates both some stan­dard Epics client tools (EDM, CSS under eval­u­a­tion, etc …) and spe­cif­ic high level ap­pli­ca­tions writ­ten in Java, also de­riv­ing de­vel­op­ments from the Xal frame­work. Re­la­tion­al databas­es are in­volved into the con­trol sys­tem for equip­ment con­fig­u­ra­tion (fore­seen), ma­chine rep­re­sen­ta­tion and con­fig­u­ra­tion, CSS archivers (under eval­u­a­tion) and Irmis (main­ly for pro­cess vari­able de­scrip­tion). The first com­po­nents of the Spi­ral2 con­trol sys­tem are now used in op­er­a­tion with­in the con­text of the ion and deuteron sources test plat­forms. The paper also de­scribes how soft­ware de­vel­op­ment and shar­ing is man­aged with­in the col­lab­o­ra­tion.  
poster icon Poster MOPMU005 [2.093 MB]  
 
MOPMU007 ISHN Ion Source Control System Overview controls, EPICS, ion-source, operation 436
 
  • M. Eguiraun, I. Arredondo, J. Feuchtwanger, G. Harper, M. del Campo
    ESS-Bilbao, Zamudio, Spain
  • J. Jugo
    University of the Basque Country, Faculty of Science and Technology, Bilbao, Spain
  • S. Varnasseri
    ESS Bilbao, LEIOA, Spain
  
  Funding: The present work is supported by the Basque Government and Spanish Ministry of Science and Innovation.
ISHN pro­ject con­sists of a Pen­ning ion source which will de­liv­er up to 65mA of H− beam pulsed at 50 Hz with a di­ag­nos­tics ves­sel for beam test­ing pur­pos­es. The pre­sent work an­a­lyzes the con­trol sys­tem of this re­search fa­cil­i­ty. The main de­vices of ISHN are the power sup­plies for high den­si­ty plas­ma gen­er­a­tion and beam ex­trac­tion, the H2 sup­ply and Ce­sium heat­ing sys­tem, plus re­frig­er­a­tion, vac­u­um and mon­i­tor­ing de­vices. The con­trol sys­tem im­ple­ment­ed with Lab­VIEW is based on PXI sys­tems from Na­tion­al In­stru­ments, using two PXI chas­sis con­nect­ed through a ded­i­cat­ed fiber optic link be­tween HV plat­form and ground. Source op­er­a­tion is man­aged by a real time pro­ces­sor at ground, while ad­di­tion­al tasks are per­formed by means of an FPGA lo­cat­ed at HV. The real time sys­tem man­ages the con­trol loop of heaters, the H2 pulsed sup­ply for a sta­ble pres­sure in the plas­ma cham­ber, data ac­qui­si­tion from sev­er­al di­ag­nos­tics and sen­sors and the com­mu­ni­ca­tion with the con­trol room. The FPGA gen­er­ates the trig­gers for the dif­fer­ent power sup­plies and H2 flow as well as some data ac­qui­si­tion at high volt­age. A PLC is in charge of the vac­u­um con­trol (two dou­ble stage pumps and two turbo pumps), and it is com­plete­ly in­de­pen­dent of the source op­er­a­tion for avoid­ing risky fail­ures. A ded­i­cat­ed safe­ty PLC is in­stalled to han­dle per­son­nel safe­ty is­sues. Cur­rent run­ning di­ag­nos­tics are, ACCT, DCCT, Fara­day Cup and a pep­per­pot. In ad­di­tion, a MySQL database stores the whole op­er­a­tion pa­ram­e­ters while source is run­ning. The aim is to test and train in ac­cel­er­a­tor tech­nolo­gies for fu­ture de­vel­op­ments. 		 
poster icon Poster MOPMU007 [1.382 MB]  
 
WEPKN018 NSLS-II Vacuum Control for Chamber Acceptance vacuum, controls, storage-ring, multipole 742
 
  • H. Xu, L.R. Dalesio, M.J. Ferreira, H.-C. Hseuh, D. Zigrosser
    BNL, Upton, Long Island, New York, USA
  
  Funding: Work supported by U.S. Department of Energy
The Na­tion­al Syn­chrotron Light Source II (NSLS-II) uses ex­trud­ed alu­mini­um cham­bers as an in­te­gral part of the vac­u­um sys­tem. Prior to in­stal­la­tion in the Stor­age Ring all dipole and mul­ti­pole cham­ber as­sem­blies must be test­ed to en­sure vac­u­um in­tegri­ty. A sig­nif­i­cant part of the cham­ber test re­quires a full bake­out of the as­sem­bly, as well as con­trol and mon­i­tor­ing of the ti­ta­ni­um sub­li­ma­tion pumps (TSP), non-evap­orable get­ter pumps (NEG) and ion pumps (IP). Data that will be ac­quired by the sys­tem dur­ing bake­outs in­cludes sys­tem tem­per­a­ture, vac­u­um pres­sure, resid­u­al gas an­a­lyz­er scans, ion pump cur­rent, TSP op­er­a­tion and NEG ac­ti­va­tion. This data will be used as part of the ac­cep­tance pro­cess of the cham­bers prior to the in­stal­la­tion in the stor­age ring tun­nel. This paper pre­sents the de­sign and im­ple­men­ta­tion of the vac­u­um bake­out con­trol, as well as re­lat­ed vac­u­um con­trol is­sues. 		 
poster icon Poster WEPKN018 [1.174 MB]  
 
WEPMN015 Timing-system Solution for MedAustron; Real-time Event and Data Distribution Network timing, real-time, controls, software 909
 
  • R. Štefanič, J. Dedič, R. Tavčar
    Cosylab, Ljubljana, Slovenia
  • J. Gutleber
    CERN, Geneva, Switzerland
  • R. Moser
    EBG MedAustron, Wr. Neustadt, Austria
  
  MedAus­tron is an ion beam can­cer ther­a­py and re­search cen­tre cur­rent­ly under con­struc­tion in Wiener Neustadt, Aus­tria. This fa­cil­i­ty fea­tures a syn­chrotron par­ti­cle ac­cel­er­a­tor for light ions. A tim­ing sys­tem is being de­vel­oped for that class of ac­cel­er­a­tors tar­get­ed at clin­i­cal use as a prod­uct of close col­lab­o­ra­tion be­tween MedAus­tron and Co­sy­lab. We re­designedμRe­search Fin­land trans­port layer's FPGA firmware, ex­tend­ing its ca­pa­bil­i­ties to ad­dress spe­cif­ic re­quire­ments of the ma­chine to come to a gener­ic re­al-time broad­cast net­work for co­or­di­nat­ing ac­tions of a com­pact, pulse-to-pulse mod­u­la­tion based par­ti­cle ac­cel­er­a­tor. One such re­quire­ment is the need to sup­port for con­fig­urable re­spons­es to tim­ing events on the re­ceiv­er side. The sys­tem comes with Na­tion­al In­stru­ments Lab­View based soft­ware sup­port, ready to be in­te­grat­ed into the PXI based front-end con­trollers. This paper ex­plains the de­sign pro­cess from ini­tial re­quire­ments re­fine­ment to tech­nol­o­gy choice, ar­chi­tec­tural de­sign and im­ple­men­ta­tion. It elab­o­rates the main char­ac­ter­is­tics of the ac­cel­er­a­tor that the tim­ing sys­tem has to ad­dress, such as sup­port for con­cur­rent­ly op­er­at­ing par­ti­tions, re­al-time and non re­al-time data trans­port needs and flex­i­ble con­fig­u­ra­tion schemes for re­al-time re­sponse to tim­ing event re­cep­tion. Fi­nal­ly, the ar­chi­tec­tural overview is given, with the main com­po­nents ex­plained in due de­tail.  
poster icon Poster WEPMN015 [0.800 MB]  
 
WEPMS019 Measuring Angle with Pico Meter Resolution electronics, FPGA, laser, controls 1014
 
  • P. Mutti, M. Jentschel, T. Mary, F. Rey
    ILL, Grenoble, France
  • G. Mana, E. Massa
    INRIM, Turin, Italy
  
  The kilo­gram is the only re­main­ing fun­da­men­tal unit with­in the SI sys­tem that is de­fined in terms of a ma­te­ri­al arte­fact (a PtIr cylin­der kept in Paris). There­fore, one of the major tasks of mod­ern metrol­o­gy is the re­def­i­ni­tion of the kilo­gram on the basis of a nat­u­ral quan­ti­ty or of a fun­da­men­tal con­stant. How­ev­er, any kilo­gram re­def­i­ni­tion must ap­proach a 10-8 rel­a­tive ac­cu­ra­cy in its prac­ti­cal re­al­iza­tion. A joint re­search pro­ject amongst the major metrol­o­gy in­sti­tutes in Eu­rope has pro­posed the re­def­i­ni­tion of the kilo­gram based on the mass of the 12C atom. The goal can be achieved by count­ing in a first step the num­ber of atoms in a macro­scop­ic weigh­able ob­ject and, in a sec­ond step, by weigh­ing the atom by means of mea­sur­ing its Comp­ton fre­quen­cy vC. It is in the sec­ond step of the pro­ce­dure, where the ILL is play­ing a fun­da­men­tal role with GAMS, the high-res­o­lu­tion γ-ray spec­trom­e­ter. En­er­gies of the γ-rays emit­ted in the decay of the cap­ture state to the ground state of a daugh­ter nu­cle­us after a neu­tron cap­ture re­ac­tion can be mea­sured with high pre­ci­sion. In order to match the high de­mand in angle mea­sure­ment ac­cu­ra­cy, a new op­ti­cal in­ter­fer­om­e­ter with 10 pi­co­rad res­o­lu­tion and lin­ear­i­ty over a total mea­sure­ment range of 15° and high sta­bil­i­ty of about 0.1 nrad/hour has been de­vel­oped. To drive the in­ter­fer­om­e­ter, a new FPGA based elec­tron­ics for the het­ero­dyne fre­quen­cy gen­er­a­tion and for real time phase mea­sure­ment and axis con­trol has been re­al­ized. The basic con­cepts of the FPGA im­ple­men­ta­tion will be re­vised.  
poster icon Poster WEPMS019 [6.051 MB]  
 
WEPMS024 ALBA High Voltage Splitter - Power Distribution to Ion Pumps high-voltage, controls, vacuum, Ethernet 1028
 
  • J.J. Jamroz, E. Al-dmour, D.B. Beltrán, J. Klora, R. Martin, O. Matilla, S. Rubio-Manrique
    CELLS-ALBA Synchrotron, Cerdanyola del Vallès, Spain
  
  High Volt­age Split­ter (HVS) is an equip­ment de­signed in Alba that al­lows a high volt­age (HV) dis­tri­bu­tion (up to +7kV) from one ion pump con­troller up to eight ion pumps. Using it, the total num­ber of high volt­age power sup­plies need­ed in Alba's vac­u­um in­stal­la­tion has de­creased sig­nif­i­cant­ly. The cur­rent drawn by each split­ter chan­nel is mea­sured in­de­pen­dent­ly in­side a range from 10nA up to 10mA with 5% ac­cu­ra­cy, those mea­sure­ments are a base for vac­u­um pres­sure cal­cu­la­tions. A re­la­tion, cur­rent-pres­sure de­pends most­ly on the ion pump type, so dif­fer­ent tools pro­vid­ing the full cal­i­bra­tion flex­i­bil­i­ty have been im­ple­ment­ed. Split­ter set­tings, sta­tus and record­ed data are ac­ces­si­ble over a 10/100 Base-T Eth­er­net net­work, none the less a local (man­u­al) con­trol was im­ple­ment­ed most­ly for ser­vice pur­pos­es. The de­vice sup­ports also ad­di­tion­al func­tions as a HV cable in­ter­lock, pres­sure in­ter­lock out­put co­op­er­at­ing with the fa­cil­i­ty's Equip­ment Pro­tec­tion Sys­tem (EPS), pro­grammable pres­sure warn­ings/alarms and au­to­mat­ic cal­i­bra­tion pro­cess based on an ex­ter­nal cur­rent source. This paper de­scribes the pro­ject, func­tion­al­i­ty, im­ple­men­ta­tion, in­stal­la­tion and op­er­a­tion as a part of the vac­u­um sys­tem at Alba.  
poster icon Poster WEPMS024 [3.734 MB]