Keyword: experiment
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S01SRA11 The Control System of HIRFL controls, status, heavy-ion, interface 44
 
  • T.S. Jiao, T.Y. Li, S. Ma, Z.S. Chu, T.H. Huang, X. Zhou, Z. Wang, Z. Shen
    IMP, Lanzhou, People’s Republic of China
  
  The Heavy Ion Re­search Fa­cil­ity in Lanzhou (HIRFL) is a multi-pur­pose and vari­able en­ergy ma­chine de­signed to ac­cel­er­ate wide range of ions. In order to ob­tain a de­signed beam (par­ti­cle and en­ergy) and to trans­port it to a proper ex­per­i­men­tal areas in a short time re­quires to mod­ify a great num­ber of pa­ra­me­ters, this can­not be eas­ily achieved with­out the help of a com­puter. The con­trol sys­tem de­sign and con­struc­tion was started in 1983. First of all, some local con­trol sta­tion of ac­cel­er­a­tor sub­sys­tems were fin­ished in 1988 and sat­is­fied the needs of op­er­at­ing and com­mis­sion­ing at the el­e­men­tary level. Con­trol­ling the HIRFL process is im­ple­ment­ing at a high level.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S01SRA11  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S05SRN01 A Control System for a Free Electron Laser Experiment controls, data-acquisition, software, operation 195
 
  • D. Giove
    INFN/LASA, Segrate (MI), Italy
  
  The gen­eral lay­out of a con­trol and data ac­qui­si­tion sys­tem for a Free Elec­tron Laser ex­per­i­ment will be dis­cussed. Some gen­eral con­sid­er­a­tions about the re­quire­ments and the ar­chi­tec­ture of the whole sys­tem will be de­vel­oped. The aim or the ELFA (Elec­tron Laser Fa­cil­ity) ex­per­i­ment is to study the physics of a sin­gle pass FEL am­pli­fier op­er­at­ing in the high gain Comp­ton regime using a short elec­tron pulse beam. The ex­per­i­men­tal pur­pose is the pro­duc­tion of high peak power (0.3-1 GW) of mi­crowave ra­di­a­tion, with a basic wave­length of λr=3 mm, and the pos­si­bil­ity of tun­ing from λr= 1 cm to λr=0.1 mm. In order to achieve this goal an elec­tron beam of very high cur­rent (400 A) in short pulses (6 cm) and with a max­i­mum en­ergy around 10 MeV will be in­jected into the wig­gler mid­plane.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN01  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S05SRN07 Conceptual Design of Centralized Control System for LHD controls, plasma, operation, status 224
 
  • H. Kaneko, Y. Taniguchi, K. Yamazaki
    NIFS, Chikusa-ku, Nagoya, Japan
  
  A cen­tral­ized con­trol sys­tem for a fu­sion ex­per­i­men­tal ma­chine is dis­cussed. A con­fig­u­ra­tion whereby a num­ber of com­plete and uni­form local sys­tems are con­trolled by a cen­tral com­puter, a timer and an in­ter­lock sys­tem is ap­pro­pri­ate for the con­trol sys­tem of the Large He­li­cal De­vice (LHD). A con­nec­tion among local sys­tems can be made by Eth­er­net, be­cause a faster trans­mis­sion of con­trol data is processed by a spe­cific sys­tem.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN07  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S05SRN08 Status of LHD Control System Design controls, plasma, operation, feedback 228
 
  • K. Yamazaki, H. Kaneko, 0. Motojima, Y. Taniguchi
    NIFS, Chikusa-ku, Nagoya, Japan
  
  The pre­sent sta­tus of LHD (Large He­li­cal De­vice) con­trol sys­tem de­sign is de­scribed, em­pha­siz­ing on the plasma op­er­a­tion modes, the ar­chi­tec­ture of the LHD con­trol sys­tem, the real-time plasma feed­back sys­tem with PID or Fuzzy con­trollers and the con­struc­tion sched­ule of the LHD con­trol sys­tem. The con­cep­tual and de­tailed de­signs are under way tak­ing flex­i­ble and re­li­able op­er­a­tions for physics ex­per­i­ments into ac­count.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN08  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S05SRN09 Control and Monitoring System Design Study for the UNK Experimental Setups electron, electronics, controls, data-acquisition 232
 
  • A. Ekimov, Yu. Ermolin, M. Matveev, S. Ovcharov, V. Petrov, V. Vaniev
    IHEP, Moscow Region, Russia
  
  At pre­sent a num­ber of ex­per­i­men­tal se­tups for the new UNK pro­ject are under con­struc­tion. A com­mon ap­proach to the ar­chi­tec­ture of con­trol/DAO/trig­ger sys­tems will be used in the de­vel­op­ment of elec­tron­ics for all these de­tec­tors. The sys­tem analy­sis and de­sign group has been formed for this pur­pose. The group ac­tiv­ity is aimed at the de­vel­op­ment of such uni­fied sys­tem. The group has started with con­trol and mon­i­tor­ing sys­tem as one of the most im­por­tant parts and the en­vi­ron­ment for the DAO/trig­ger sys­tems. The group ac­tiv­ity sta­tus re­port is pre­sented.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN09  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S05SRN10 Hard-and Software for Measurement and Control of the Pulse Thermonuclear Installation controls, software, hardware, Ethernet 235
 
  • V.V. Bulan, V.M. Chikovsky, E.I. Dudorova, A.V. Kartashev, Yu.N. Lusin, A.I. Nebogin, G.M. Oleinik, Yu.V. Papazyan, V.H. Savochkin, V.P. Smirnov, V.I. Zaitsev
    I.V. Kurchatov Institute of Atomic Energy, Troitsk, Russia
  
  This paper de­scribes con­trol and mea­sur­ing sys­tems of the pulse ther­monu­clear in­stal­la­tion "Angara­-5". The "An­gara-5" op­er­ates in a monopulse mode. It takes a long time to pre­pare the in­stal­la­tion to the work shot. The main in­for­ma­tion flow about the in­stallation out­put pa­ra­me­ters and the tar­get processes comes for 10-7-10-8 sec. The mea­sur­ing-con­trol equip­ment has a multi-level hi­er­ar­chy struc­ture where the lower level is local sys­tems con­trolled by own com­put­ers. Mea­sur­ing sys­tems con­tain wave­form dig­i­tiz­ers of dif­fer­ent types. The su­per­vi­sor con­sole sys­tem re­al­izes the com­mu­ni­ca­tions with the local sys­tems, as well as the data ac­qui­si­tion, pro­cess­ing and stor­age. Hard­ware and soft­ware struc­tures are given. Care­ful equip­ment shield­ing and ground­ing have pro­vided level of noise 30 mV. Fast sig­nals pro­cess­ing fea­tures are dis­cussed.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN10  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S05SRN11 A Control & Data Acquisition System for Photoelectron Spectroscopy Experiment Station at Hefei National Synchrotron Radiation Laboratory interface, controls, software, electron 239
 
  • W. Xu, Y. Liu
    USTC, Hefei, Anhui, People’s Republic of China
  
  The paper de­scribes sys­tem con­fig­u­ra­tion and soft­ware de­sign. The sys­tem has the fol­low­ing fea­tures: flex­i­ble user in­ter­face, suc­cinct con­trol lev­els, strict pro­tec­tion and high in­tel­li­gence. It can run EDC, CFS, CIS ex­per­i­ment modes very con­ve­niently with SR light source, Its con­struc­tion and de­sign idea of the sys­tem can be ap­plied to other data ac­qui­si­tion sys­tems.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN11  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S06SA02 Ideas on a Generic Control Systems Based on the Experience on the 4 LEP Experiments Control System controls, database, software, detector 246
 
  • R. Barillère, J.-M. Le Goff, H. Milcent, R. Stampfli
    CERN, Meyrin, Switzerland
  
  Most of the large slow con­trol sys­tems in the LEP col­lider ex­per­i­ments are dis­trib­uted het­ero­ge­neous and multi-stan­dard. But in spite of the ap­pear­ances, they have a lot in com­mon. From our di­rect ex­pe­ri­ence on the L-3 slow con­trol sys­tem and from the in­for­ma­tions we ob­tained on the 3 other LEP ex­per­i­ments con­trol sys­tems we have come to the con­clu­sion that it should be pos­si­ble to build a Generic Con­trol Pack­age from which any con­trol sys­tem could be de­rived. This soft­ware pack­age is en­tirely based on re­la­tional data­bases and is in­tended to pro­vide all the nec­es­sary tools to build a mod­u­lar, co­her­ent, easy to up­date and to main­tain con­trol sys­tem. Among other things this pack­age should in­clude user friendly in­ter­faces, ex­pert sys­tems, and pow­er­ful graphic mon­i­tor­ing and con­trol tools. This paper will pre­sent our gen­eral ideas about the re­al­iza­tion of such a pack­age.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S06SA02  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S08NC11 A New Approach in Development of Data Flow Control and Investigation System for Computer Networks network, controls, software, database 329
 
  • I. Frolov, A. Silin, A.I. Vaguine
    MRI, Moscow, Russia
  
  Seven years ago we started the de­vel­op­ment of a new con­trol sys­tem for an ex­per­i­men­tal elec­tron ac­cel­er­a­tor in our in­sti­tute. This paper de­scribes a new ap­proach in de­vel­op­ment of data flow con­trol and in­ves­ti­ga­tion sys­tem for com­puter net­works. This ap­proach was de­vel­oped and ap­plied in the Moscow Ra­diotech­ni­cal In­sti­tute for con­trol and in­ves­ti­ga­tions of In­sti­tute com­puter net­work. It al­lowed us to solve our net­work cur­rent prob­lems suc­cess­fully. De­scrip­tion of our ap­proach is rep­re­sented below along with the most in­ter­est­ing re­sults of our work.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S08NC11  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S09DPP03 Intelligent Trigger by Massively Parallel Processors for High Energy Physics Experiments detector, electron, target, hadron 340
 
  • F. Rohrbach
    CERN, Geneva, Switzerland
  • G. Vesztergombi
    KFKI, Budapest, Hungary
  
  The CERN-MPPC col­lab­o­ra­tion con­cen­trates its ef­fort on the de­vel­op­ment of ma­chines based on mas­sive par­al­lelism with thou­sands of in­te­grated pro­cess­ing el­e­ments, arranged in a string. Seven ap­pli­ca­tions are under de­tailed stud­ies within the col­lab­o­ra­tion: three for LHC, one for SSC, two for fixed tar­get high en­ergy physics at CERN and one for HDTV. Pre­lim­i­nary re­sults are pre­sented. They show that the ob­jec­tives should be reached with the use of the ASP ar­chi­tec­ture.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S09DPP03  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S10TS06 Modular Pulse Sequencing in a Tokamak System plasma, electron, timing, coupling 364
 
  • A.C. Chew, S. Lee, S.H. Saw
    Plasma Research Laboratory, University of Malaya, Kuala Lumpur, Malaysia
  
  Pulse tech­nique ap­plied in the tim­ing and se­quenc­ing of the var­i­ous part of the MUT toka­mak sys­tem are dis­cussed. The mod­u­lar ar­chi­tec­ture of the pulse gen­er­at­ing de­vice high­lights the ver­sa­tile ap­pli­ca­tion of the sim­ple phys­i­cal con­cepts in pre­cise and com­pli­cated re­search ex­per­i­ment. In ex­per­i­men­tal stud­ies of pulse plasma de­vices, tim­ing and se­quenc­ing of the var­i­ous events are an im­por­tant part of the ex­per­i­ment and re­quires care­ful con­sid­er­a­tions. This is achieved in the MUT (Uni­ver­sity of Malaya Toka­mak) toka­mak sys­tem by em­ploy­ing mod­u­lar ar­chi­tec­ture in­volv­ing var­i­ous mod­ules of pulse gen­er­at­ing de­vices.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S10TS06  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S10TS07 The Timing System of the RFX Nuclear Fusion Experiment timing, software, hardware, operation 367
 
  • V. Schmidt, G. Flor, G. Manduchi, I. Piacentini
    Consorzio RFX, Associazione Euratom-ENEA sulla Fusione, Padova, Italy
  • V. Schmidt
    HMI, Berlin, Germany
  
  The RFX Nu­clear Fu­sion Ex­per­i­ment in Padova, Italy, em­ploys a dis­trib­uted sys­tem to pro­duce pre­ci­sion trig­ger sig­nals for the fast con­trol of the ex­per­i­ment and for the ex­per­i­ment-wide syn­chro­niza­tion of data ac­qui­si­tion chan­nels. The hard­ware of the sys­tem is based on a set of CAMAC mod­ules. The mod­ules have been in­te­grated into a hard­ware/soft­ware sys­tem which pro­vides the fol­low­ing fea­tures: # gen­er­a­tion of pre-pro­grammed tim­ing events, # dis­tri­b­u­tion of asyn­chro­nous (not pre-pro­grammed) tim­ing events, # gat­ing of tim­ing event gen­er­a­tion by Ma­chine Pro­tec­tion Sys­tem, # au­to­matic stop of tim­ing se­quence in case of high­way dam­age, # dual-speed time­base for tran­sient recorders, # sys­tem-wide pre­ci­sion of ¿3 ¿s, time res­o­lu­tion ¿ l0 ¿s. The op­er­a­tion of the tim­ing sys­tem is fully in­te­grated into the RFX data ac­qui­si­tion sys­tem soft­ware. The Tim­ing Sys­tem Soft­ware con­sists of three lay­ers: the low­est one cor­re­sponds di­rectly to the CAMAC mod­ules, the in­ter­me­di­ate one pro­vides pseudo-de­vices which es­sen­tially cor­re­spond to spe­cific fea­tures of the mod­ules (e.g. a dual fre­quency clock source for tran­sient recorders), the high­est level pro­vides sys­tem set-up sup­port. The sys­tem is fully op­er­a­tional and was first used dur­ing the com­mis­sion­ing of the RFX Power Sup­plies in spring ’91.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S10TS07  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S11LLC09 A CAMAC-Resident Microprocessor for the Monitoring of Polarimeter Spin States controls, operation, cyclotron, data-acquisition 403
 
  • D. Reid, D. DuPlantis, N. Yoder
    IUCF, Bloomington, Indiana, USA
  • D. Dale
    TRIUMF, Vancouver, Canada
  
  A CAMAC mod­ule for the re­port­ing of po­larime­ter spin states is being de­vel­oped using a res­i­dent mi­cro­con­troller. The mod­ule will allow ex­per­i­menters at the In­di­ana Uni­ver­sity Cy­clotron Fa­cil­ity to mon­i­tor spin states and cor­re­late spin in­for­ma­tion with other ex­per­i­men­tal data. The use of a mi­cro­proces­sor al­lows for adap­ta­tion of the mod­ule as new re­quire­ments ensue with­out change to the printed cir­cuit board lay­out.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S11LLC09  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S16MS04 Optimization of Accelerator Control controls, operation, distributed, injection 550
 
  • N.D. Vasiljev, L.V. Mozin, V.A. Shelekhov
    NIIEFA, St. Petersburg, Russia
  
  Ex­pen­sive ex­ploita­tion of charged par­ti­cle ac­cel­er­a­tors is in­evitably con­cerned with re­quire­ments of ef­fec­tively ob­tain­ing of the best char­ac­ter­is­tics of ac­cel­er­ated beams for phys­i­cal ex­per­i­ments. One of these char­ac­ter­is­tics is in­ten­sity. In­crease of in­ten­sity is hin­dered by a num­ber of ef­fects, con­cerned with the in­flu­ence of the vol­ume charge field on a par­ti­cle mo­tion dy­nam­ics in ac­cel­er­a­tor’s cham­ber. How­ever, ul­ti­mate in­ten­sity, de­ter­mined by a vol­ume charge, is al­most not achieved for the most of the op­er­at­ing ac­cel­er­a­tors. This fact is caused by losses of par­ti­cles dur­ing in­jec­tion, at the ini­tial stage of ac­cel­er­a­tion and dur­ing ex­trac­tion. These losses are caused by de­vi­a­tions the op­ti­mal from real char­ac­ter­is­tics of the ac­cel­er­at­ing and mag­netic sys­tem. This is due to a num­ber of cir­cum­stances, in­clud­ing tech­no­log­i­cal tol­er­ances on struc­tural el­e­ments of sys­tems, in­flu­ence of mea­sur­ing and aux­il­iary equip­ment and beam con­sumers’ in­stal­la­tions, placed in the closed prox­im­ity to mag­nets, and in­sta­bil­ity in op­er­a­tion of tech­no­log­i­cal sys­tems of ac­cel­er­a­tor. Con­trol task con­sists in com­pen­sa­tion of de­vi­a­tions of char­ac­ter­is­tics of mag­netic and elec­tric fields by op­ti­mal se­lec­tion of con­trol ac­tions. As for tech­ni­cal means, au­toma­tion of modem ac­cel­er­a­tors al­lows to solve op­ti­mal con­trol prob­lems in real time. There­fore, the re­port is de­voted to op­ti­mal con­trol meth­ods and ex­per­i­men­tal re­sults.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S16MS04  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S17AIA04 Development of Operator Thinking Model and its Application to Nuclear Reactor Plant Operation System operation, controls, network, monitoring 570
 
  • T. Miki, A. Endou, Y. Himeno
    Power Reactor and Nuclear Fuel Development Corporation, Oarai Engineering Center, Oarai, Japan
  
  At first, this paper pre­sents the de­vel­op­ing method of an op­er­a­tor think­ing model and the out­line of the de­vel­oped model In next, it de­scribes the nu­clear re­ac­tor plant op­er­a­tion sys­tem which has been de­vel­oped based on this model. Fi­nally, it has been con­firmed that the method de­scribed in this paper is very ef­fec­tive in order to con­struct ex­pert sys­tems which re­place the re­ac­tor op­er­a­tor’s role with AI (ar­ti­fi­cial in­tel­li­gence) sys­tems.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S17AIA04  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S20PD03 Panel Discussion on Management of Control Systems controls, software, hardware, factory 598
 
  • D.S. Barton
    BNL, Upton, New York, USA
  • W. Busse
    HMI, Berlin, Germany
  • L. Coffman
    SSCL, Dallas, TX, USA
  • A. Daneels
    CERN, Geneva, Switzerland
  • S.-I. Kurokawa
    KEK, Ibaraki, Japan
  • R.A. Pose
    JINR, Dubna, Moscow Region, Russia
  
  In sci­en­tific or­ga­ni­za­tions one often en­coun­ters the opin­ion that man­age­ment is a triv­ial ac­tiv­ity and that pro­ject man­agers enjoy the easy side of the pro­ject life, far away from where the real work is. How­ever, ex­am­ples abound of pro­jects fail­ing to meet their ob­jec­tives, run­ning be­hind sched­ule, over­run­ning costs, etc., be­cause of poor man­age­ment. To sev­eral as­pects which are cru­cial for the suc­cess­ful com­ple­tion of a pro­ject the at­ten­tion they de­serve has to be paid if the pro­ject is to meet its ob­jec­tives within the con­straints that are im­posed upon it. Whereas the en­gi­neers do things, the man­ager gets things done; man­agers are par­tic­u­larly con­cerned with: # what is planned to be done: i.e. the prod­uct which should be de­liv­ered, in our case the con­trol sys­tem, # how long will the pro­ject take: i.e. sched­ule, # how one will know when the pro­ject is fin­ished: com­ple­tion cri­te­ria, # how much will it cost to im­ple­ment and to main­tain: Le. the cost. These is­sues have been dis­cussed in the panel dis­cus­sion.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S20PD03  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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