IEEE Trans. Nucl. Sci. IEEE Trans. Nucl. Sci. 0018-9499 The injection kicker system of the CERN antiproton accumulator Fiander David C Metzmacher K D Milner S Pearce P Poncet Alain Schnuriger J C Wikberg Tore 1981 28 2949 2951 research-article

A pulse generator for short-circuited delay line magnet excitation Fiander David C Fowler A B Grier D G Metzmacher K D Menown H 1985 PREPRINT

Fast Kicker magnets for damping rings Fiander David C 1988 research-article

Nucl. Instrum. Methods Phys. Res., A Nucl. Instrum. Methods Phys. Res., A 0167-5087 Improving the performance of kicker magnet systems Barnes M J TRIUMF Wait G D TRIUMF Fiander David C CERN 1992 321 172 179 research-article

SLC kicker magnet limitations Cassel R L SLAC Donaldson A R SLAC Mattison T S SLAC Bowden G B SLAC Weaver J SLAC Bulos F SLAC Fiander David C CERN 1991 research-article

Kicker systems for ESRF Fiander David C Metzmacher K D Sermeus L 1993 research-article

Beam sharing with the full aperture ejection kicker Barbalat Oscar 1965 PREPRINT

Calculation of kick strength in an imperfectly matched kicker magnet Lowin R 1965 PREPRINT

K 66 kicker project Carter C 1968 PREPRINT

The use of the kicker magnets in the PS Richter W Merminod J J 1961 PREPRINT

The application of saturating inductors for improving the performance of the CERN PS kicker systems Wait G D Barnes M J Metzmacher K D Sermeus L 1998 research-article

Hardware for a full-aperture kicker system for the CPS Fiander David C 1971 research-article

Preliminary design of a tune kicker for the PIMMS synchrotron MacCaferri R Metzmacher K D Rossi S 2000 research-article

The LAA project Zichichi Antonino Ali A Anzivino Giuseppina Arneodo M Arzarello Francesco Bari G Basile M Battiston R Becker U Berbiers Julien Bergsma F Bertin R Böck R K Bouclier Roger Bruni G Caputi L Cara Romeo G Casaccia R Charpak Georges Chiarini M Christ N H Cifarelli Luisa Cindolo F Colavita E Contin A Costa M Crotty Ian D'Ali G D'Ambrosio C D'Auria S D Dardo M De Pasquale S DeSalvo R del Papa C Dobinson Robert W Dupont J Dupraz J P Ekelöf T J C Fabre Jean-Paul Ford P Frasconi F Gaudaen J Giusti P Gobel K Grinnell C Guérard B Gys Thierry Heijne Erik H M Hellman S Hourican M Iacobucci G Jarron Pierre Jenni Peter Jones L Krischer Werner Laakso I Labbé J C Larsen H Laurenti G Leutz H Lone S Maccarrone G D Massam Thomas Meier K H Million Gilbert Nania R Nemoz C O'Shea V Oliva A Paar H P Pelfer P G Peroni C Perotto E Peskov Vladimir Piedigrossi D Qian S Santiard Jean-Claude Sartorelli G Sauli Fabio Schenvit E Schipper J D Schönbacher Helmut Scigocki David Sharp D Simonet G Sonderegger P Sportelli L Suffert Martin Susinno G Tailhardat S Terraneo A E Votano L Weidberg T Wigmans R Ye C H Ypsilantis Thomas Zografos K 1990 research-article

Nuovo Cimento, Riv. Nuovo Cimento, Riv. 0393-697X Advances in technology for high-energy subnuclear physics Acosta D Alberty J Alsford J Alvisi Carlo Ambrosi G Anghinolfi Francis Anselmo F Anzivino Giuseppina Arneodo M Arnold R Arzarello Francesco Aspell P Barberio L E Bari G Barillari T Basile M Battiston R Baudoin-Bijst C Becker U Bellagamba L Bénot M Benvenuto P Berbiers Julien Berdugo J Bergsma F Bertin R Bingefors N Bisello D Böck R K Boscherini D Bosteels Michel Bouclier Roger Bramhall M Bruni G Bruni P Buontempo S Calôba L P Campbell M Caputi L Cara Romeo G Caria M Casaccia R Castro H Ceresara S Chapuis J M Charpak Georges Chesi Enrico Guido Chiarini M Christiansen J Christophel E Cifarelli Luisa Cindolo F Ciralli F Colavita E Coninckx F Contin A Costa M Crotty Ian D'Ali G D'Ambrosio C D'Auria S D Dardo M del Papa C Della Gatta G De Pasquale S DeSalvo R De Seixas J M Destruel P DeWitt J Di Rosa O Dorfan D Duchovni E Dupont J Dupraz J P Egger J Ekelöf T J C Enz C C Ereditato A Ermoline Y Fabre Jean-Paul Feraudet P Ferrari R Fiori F Ford P Frasconi F Fraternali M French M Fuchs M Fumagalli G Gabathuler K Gálvez J Gaudaen J Gildemeister O Giomataris Ioanis Girod J P Giusti P Gobel K Gougas Andreas Grinnell C Güsten H Guyonnet J L Gys Thierry Hartjes F G Hazifotiadu D Heijne Erik H M Henkes T Henriques A Hourican M Iacobucci G Iuvino G Jarron Pierre Jenni Peter Jobez J P Joram Christian Kluge W Krischer Werner Krummenacher F Kuzucu-Polatoz A Laakso I Labbé J C La Commare G Larsen H Laurenti G Letheren M F Leutz H Levi G Levinson L Lin Q Linssen Lucie Lisowski B Litke A M Livan M Ljuslin C Lone L Maccarrone G D Maio A Mapelli Livio P Marchioro A Margotti A Marino M Massam Thomas Matsuda T Matsuura T Mattern D Meddeler G Meier K H Meng R Mikenberg G Million Gilbert Mondardini M R Mörk G Morpurgo Mario Musso B Nania R Nemoz C Newett S Oliva A Olsen A Ong B O'Shea V Ozdes N Paar H P Palermo L Palermo-Cernicchiaro S Palmonari F Passardi Giorgio Pastore F Pelfer P G Pereira M G Peroni C Perotto E Peskov Vladimir Piedigrossi D Pilastrini R Pitzl D Poggioli Luc Pol M E Qian S Rácz A Rivera F Rose-Dulcina L Ruf T Sadrozinski H F W Salgne R Sandoval A Sannier G Santiard Jean-Claude Sartorelli G Sartori P Sauli Fabio Scheel C V Schioppa M Schipper J D Schönbacher Helmut Scigocki David Scioni M Séguinot Jacques Seiden A Seidl W Seixas J M Sharma A Sharp P Sigrist A Simon A Simonet G Sivertz M Smith K Sonderegger P Souza M N Spencer E Sportelli L Staiano A Susinno G Tailhardat S Taufer M Tavlet Marc CERN Terraneo A E Thomé Z D Timellini R Tischhauser Johann Tocqueville J Valencic V van Eijk B Vanstraelen G Vercesi V Votano L Wenninger Horst Werner C Wigmans R Williams C Ypsilantis G Zaganidis Nicolas Zichichi Antonino Zografos K 1990 13 1 228 research-article

Nuovo Cimento, Riv. Nuovo Cimento, Riv. 0393-697X The LAA project Anzivino Giuseppina Arneodo M Arzarello Francesco Bari G Basile M Battiston R Becker U Bellagamba L Bénot M Berbiers Julien Bergsma F Bertin R Böck R K Boscherini D Bouclier Roger Bruni G Bruni P Caputi L Cara Romeo G Casaccia R Charpak Georges Chiarini M Christ N H Cifarelli Luisa Cindolo F Colavita E Contin A Crotty Ian D'Ali G D'Ambrosio C D'Auria S D Dardo M De Pasquale S DeSalvo R del Papa C Dobinson Robert W Dupont J Dupraz J P Ekelöf T J C Fabre Jean-Paul Ford P Frasconi F Gaudaen J Giusti P Gobel K Grinnell C Guérard B Gys Thierry Heijne Erik H M Hellman S Hourican M Iacobucci G Jarron Pierre Jenni Peter Jones L Kirkby Jasper Krischer Werner Laakso I Labbé J C Larsen H Laurenti G Leutz H Lone L Maccarrone G D Massam Thomas Meier K H Million Gilbert Nania R O'Shea V Oliva A Paar H P Palmonari F Pelfer P G Peroni C Perotto E Peskov Vladimir Piedigrossi D Qian S Santiard Jean-Claude Sartorelli G Sauli Fabio Schenvit E Schipper J D Scigocki David Sharp P Schönbacher Helmut Simonet G Sonderegger P Sportelli L Suffert Martin Susinno G Tailhardat S Terraneo A E Votano L Weidberg T Wigmans R Willutzky M Ye C H Ypsilantis Thomas Zichichi Antonino Zografos K 1990 13 1 131 research-article

The antiproton production beam for the antiproton collector ("AC") Evans B J Garoby R Jamsek J Nassibian G Roux G Schipper J D 1987 research-article

Third symposium on engineering problems in thermo-nuclear research, 22-26 Juin 1964, München Bertolotto R Van Breugel H Fiander David C Reich K H 1964 PREPRINT

The accelerator complex for the AUSTRON neutron spallation source and light-ion cancer therapy facility Baumann F M Blind B Bryant P J Griesmayer E Janik J Pavlovic M Wang T Coull L Eaton G Fiander David C Gröbner Oswald Henrichsen K N Héritier G Hill C Johnsen Kjell Koziol Heribert CERN Lombardi A M Metzmacher K D Pichler S Pirkl Werner Quesnel Jean Pierre Schindl Karlheinz Schönauer Horst Otto Schönbacher Helmut Shering G C Sullivan A H Szeless Balázs Zotter Bruno W 1995 PREPRINT

A 60 kV modulator for the target voltage of an on-line isotope separator Fiander David C Fowler A B 1992 PREPRINT

Single and multi-gap thyratrons in inverse diode mode Ducimetière L Fiander David C 1992 PREPRINT

Nucl. Instrum. Methods Phys. Res., B Nucl. Instrum. Methods Phys. Res., B The new CERN-ISOLDE on-line mass-separator facility at the PS-Booster Kugler E Fiander David C Jonson B Haas H Przewloka A Ravn H L Simon Daniel Jean Zimmer K 1992 70 41 49 research-article

Int. J. Mod. Phys. A, Proc. Suppl. Int. J. Mod. Phys. A, Proc. Suppl. ISOLDE at the PS booster Allardyce Brian W CERN Elsener K CERN Fiander David C CERN Kugler E CERN Metzger C CERN Pace A CERN Ravn H L CERN Schindl Karlheinz CERN Schönauer Horst Otto CERN Shering G C CERN Simon Daniel Jean CERN Wildner E CERN 1993 2A 188 190 research-article

A 1 MHz beam chopper for the KAON factory Wait G D Barnes M J Waters G Figley C B Fiander David C Rödel V 1990 research-article

Mathematical modelling of the 1 MHz beam chopper for the KAON factory Barnes M J Wait G D Fiander David C 1990 research-article

Commutation losses of a multigap high voltage thyratron Ducimetière L Fiander David C 1990 research-article

Kickers and septa at the PS complex, CERN Fiander David C Metzmacher K D Pearce P 1989 research-article

A flavour factory and nuclear physics facility based on superconducting linacs Amaldi Ugo Bassetti M Biscari C Bisognano J J Boni R Campisi I E Castellano M G Cavallo N Coignet G Fiander David C Gambardella U Gianfelice-Wendt E Guiducci S Kulinski S Modestino G Palumbo L Patteri P Preger M A Ritson D M Serio M Sievers P Spataro B Tazzari S Tazzioli F 1989 research-article

Performance and operational experience with CERN-lithium lenses Sievers P Bellone R Fiander David C Hangst J S Silvestrov G I 1989 research-article

Beam tests of a 2-cm diameter lithium lens Fiander David C Johnson C D Maury S Sherwood T R Dugan G F Hojvat C Lennox A J 1985 research-article

The antiproton accumulator shutters Fiander David C Milner S Pearce P Poncet Alain 1984 technical-report

Kickers and septa for the fast extraction of the beams of HIBALL Fiander David C 1982 research-article

The control system for the CERN Proton Synchrotron continuous transfer ejection Bloess D Boucheron Jean Fiander David C Grier Dennis G Krusche Achim Ollenhauer Fritz Pearce Peter Riege Hans Schneider Gerhard C 1978 BOOK

CTF3 Design Report Allard D Bartholome B Bernard M Bertuzzi J P Bienvenu G Bonzano R Bossart Rudolf Braun H Bravin Enrico CERN Borburgh J Buttkus J Chazarenc E Chaput R Chohan V Cloye J J Corsini R Coudert G Damiani M Deghaye S Delahaye J P Di Maio F Dobers T Dubief P Dupuy B Durieu L Ferrari A Garvey Terence Geschonke Günther Hansen J Hellgren H Hourican M Lamidon M Le Duff J Lefèvre T Lewis J H Lindroos J Mahner E McMonagle G Monteiro J Mourier J Mouton B Odier P Otto T Pearce P Pittin R Poehler M Potier J P Raich U Rettig M Rinolfi Louis CERN Risselada Thys Riva R Rossat G Royer P Sermeus L Setas K Simonet G Sladen Jonathan P H Søby L Tanner L Tecker F A Thomi J C Wilson Ian H CERN Yvon G 2001 The design of CLIC is based on a two-beam scheme, where the short pulses of high power 30 GHz RF are extracted from a drive beam running parallel to the main beam. The 3rd generation CLIC Test Facility (CTF3) will demonstrate the generation of the drive beam with the appropriate time structure, the extraction of 30 GHz RF power from this beam, as well as acceleration of a probe beam with 30 GHz RF cavities. The project makes maximum use of existing equipment and infrastructure of the LPI complex, which became available after the closure of LEP. In the first stage of the project, the "Preliminary Phase", the existing LIL linac and the EPA ring, both modified to suit the new requirements, are used to investigate the technique of frequency multiplication by means of interleaving bunches from subsequent trains. This report describes the design of this phase. PREPRINT

The PS complex as proton pre-injector for the LHC Barnes Michael Benedikt Michael Blackmore Ewart W Blas Alfred Borburgh Jan Cappi R Chanel Michel Chohan Vinod Cifarelli Franco Clark G Daems Gilbert Evans Lyndon R Fowler Anthony B Garoby Roland González J Grier Dennis G Gruber Jacques Hancock Stephen Hill Charles E Jansson Andreas Jensen Erk Koscielniak Shane Rupert Krusche Achim Losito Roberto Maesen Pierre Mammarella F Metzmacher Klaus D Mitra A Olsfors Jan Paoluzzi Mauro Pedersen J Poirier R Raich Ulrich Reiniger K W Ries T C Riunaud J P Royer Jean Pierre Sassowsky Manfred Schindl Karlheinz Schönauer Horst Otto Sermeus Luc Thivent Michel Ullrich H M Van Cauter W Vretenar Maurizio Völker F V 2000 BOOK

Acceleration of lead ions in the CERN PS booster and the CERN PS Blas F CERN Bossard P CERN Cappi R CERN Cyvoct G CERN Garoby R CERN Gelato G CERN Haseroth H CERN Jensen E CERN Manglunki Django CERN Metzmacher K D CERN Pedersen F CERN Rasmussen N CERN Schindl Karlheinz CERN Schneider G C CERN Schönauer Horst Otto CERN Sermeus L CERN Thivent M CERN Van Rooij M CERN Völker F V CERN Wildner E CERN 1996 The new CERN Heavy Ion Accelerating Facility also requires besides a new Linac substantial modifications of existing accelerators. They are imposed by the low speed and the low intensity of the ion beam and, crucially at low energy, by the short lifetime of the partially stripped ions due to charge exchange with the atoms of the residual gas. The upgraded vacuum system hits the limits of a non-bakeable machine and consequently the acceleration had to be sped up by all means. In the Booster this led to injection and RF capture on a fast-rising magnet cycle and a new digital RF beam control system. Beam current transformers had to be replaced by new, heavily shielded ones. Other modifications include a new staircase magnet to distribute ions over the four Booster rings, lengthening of septa and kicker pulses, plus new, bakeable extraction septa and an energy stabilizing RF loop on the flat top in the CPS, and a stripper in the transfer line to the SPS. research-article

Kickers used for Bunched $e^{+}/e^{-}$ Beam Transfer in the CERN PS Complex Fowler T Freze J C Grier D G Metzmacher K D Sermeus L 1989 research-article

The CERN antiproton collector ring Autin Bruno Battiaz M Bell M Billinge Roy Boucheron J Carron G Caspers Friedhelm Chohan V Fang S X Gruber J Guo Z Y Hardt Werner Harold M Horisberger Hans Johnson C D Jones E Koziol Heribert CERN Krejcik P Legras M Maccaferri R Malthouse H F Marchand P Martini M Maury S Metzmacher K D Milner S Paoluzzi M Pearce P000188883 700__ Pincott B Pirkl Werner Poncet Alain Rinolfi Louis CERN Sermeus L Sherwood T R Suberlucq Guy Sullivan A H Susini A Thorndahl L Umstätter H H van der Meer S Vlogaert J Walker N Williams B Williams D J Wilson Edmund J N Zettler C 1988 research-article

The PS complex produces the nominal LHC beam Benedikt Michael Blas A Borburgh J Cappi R Chanel M Chohan V Cyvoct G Garoby R Grier D G Gruber J Hancock S Hill C E Jensen E Krusche A Lindroos M Métral Elias Métral G CERN Metzmacher K D Olsfors J Pedersen F Raich U Riunaud J P Royer J P Sassowsky M Schindl Karlheinz Schönauer Horst Otto Thivent M Ullrich H M Völker F V Vretenar Maurizio Barnes M Blackmore E W Cifarelli F Clark G Jones F Koscielniak Shane Rupert Mammarella F Mitra A Poirier R Reiniger K W Ries T C 2000 The LHC [1] will be supplied, via the SPS, with protons from the pre-injector chain comprising Linac2, PS Booster (PSB) and PS. These accelerators have under-gone a major upgrading programme [2] during the last five years so as to meet the stringent requirements of the LHC. These imply that many high-intensity bunches of small emittance and tight spacing (25 ns) be available at the PS extraction energy (25 GeV). The upgrading project involved an increase of Linac2 current, new RF systems in the PSB and the PS, raising the PSB energy from 1 to 1.4 GeV, two-batch filling of the PS and the installation of high-resolution beam profile measurement devices. With the project entering its final phase and most of the newly installed hardware now being operational, the emphasis switches to producing the nominal LHC beam and tackling the associated beam physics problems. While a beam with transverse characteristics better than nominal has been obtained, the longitudinal density still needs to be increased. An alternative scheme to produce the 25 ns bunch spacing is outlined, together with other promising developments. research-article

The antiproton decelerator Baird S A Berlin D Boillot J Bosser Jacques Brouet M Buttkus J Caspers Friedhelm Chohan V Dekkers Daniel Eriksson T Garoby R Giannini R Gröbner Oswald Gruber J Hémery J Y Koziol Heribert CERN MacCaferri R Maury S Metzger C Metzmacher K D Möhl D Mulder H Paoluzzi M Pedersen F Riunaud J P Serre C Simon Daniel Jean Tranquille G Tuyn Jan Willem Nicolaas Van der Schueren A 1999 A simplified scheme for the provision of antiprotons at 100 MeV/c based on fast extraction is described. The scheme uses the existing production target area and the modified Antiproton Collector Ring in their current location. The physics programme is largely based on capturing and storing antiprotons in Penning traps for the production and spectroscopy of antihydrogen. The machine modifications necessary to deliver batches of 1 107 /min at 100 MeV/c are described. Details of the machine layout and the experimental area in the existing AAC Hall are given. research-article

Conversion of the PS complex as LHC proton pre-injector Blas F Cappi R Chohan V Cornuet D Daems G Dekkers Daniel Garoby R Grier D G Gruber J Jensen E Koziol Heribert CERN Krusche A Metzmacher K D Pedersen F Pedersen J Raich U Riunaud J P Royer J P Sassowsky M Schindl Karlheinz Schönauer Horst Otto Thivent M Ullrich H M Völker F V 1998 CERN’s Large Hadron Collider (LHC) [1][2] will be supplied with protons from the injector chain Linac2-PS Booster (PSB)-PS-SPS (Fig. 1). The required transverse beam brilliance (intensity/emittance) is almost twice that of current PS beams and the LHC bunch spacing of 25 ns must be impressed on the beam before its transfer to the SPS. The scheme involves new RF harmonics in the PSB and the PS, an increase of the PSB energy, and two-batch filling of the PS. After a successful test of the main ingredients, a project for converting the PS complex was launched in 1994. Major additions are (i) h=1 RF systems in the PSB, (ii) upgrading of the PSB main magnet supply from 1 to 1.4 GeV operation, (iii) new magnets, septa, power supplies, kicker pulsers for the PSB-PS beam transfer, (iv) 40 and 80 MHz systems in the PS, (v) beam profile measurement devices with improved resolution. A significant part of the effort is being provided by TRIUMF under the Canada-CERN co-operation agreement on the LHC. research-article

Status of the antiproton decelerator Baird S A Berlin D Boillot J Bosser Jacques Brouet M Buttkus J Caspers Friedhelm Chohan V Dekkers Daniel Eriksson T Garoby R Giannini R Gröbner Oswald Gruber J Hémery J Y Koziol Heribert CERN MacCaferri R Maury S Metzger C Metzmacher K D Möhl D Mulder H Paoluzzi M Pedersen F Riunaud J P Serre C Simon Daniel Jean Tranquille G Tuyn Jan Willem Nicolaas Williams B 1996 research-article

Design study of the antiproton decelerator Baird S A Berlin D Boillot J Bosser Jacques Brouet M Buttkus J Caspers Friedhelm Chohan V Dekkers Daniel Eriksson T Garoby R Giannini R Gröbner Oswald Gruber J Hémery J Y Koziol Heribert CERN MacCaferri R Maury S Metzger C Metzmacher K D Möhl D Mulder H Paoluzzi M Pedersen F Riunaud J P Serre C Simon Daniel Jean Tranquille G Tuyn Jan Willem Nicolaas Williams B 1996 PREPRINT

An Antiproton Decelerator in the CERN PS Complex Riunaud J P Autin Bruno Baird S A Boillot J Bosser Jacques Brouet M Caspers Friedhelm Chanel M Chohan V Eriksson T Garoby R Giannini R Giovannozzi Massimo Gruber J Hémery J Y Koziol Heribert CERN MacCaferri R Maury S Metzmacher K D Möhl D Mulder H Pedersen F Perriollat F Poncet Alain Riunaud J P Serre C Simon Daniel Jean Tranquille G Tuyn Jan Willem Nicolaas Williams B Williams D J 1996 The present CERN PS low-energy antiproton complex involves 4 machines to collect, cool, decelerate and supply experiments with up to 1010 antiprotons per pulse and per hour of momenta ranging from 0.1 to 2 GeV/c. In view of a possible future physics programme requiring low energy antiprotons, mainly to carry out studies on antihydrogen, a simplified scheme providing at low cost antiprotons at 100 MeV/c has been studied. It requires only one machine, the present Antiproton Collector (AC) converted into a cooler and decelerator (Antiproton Decelerator, AD) and delivering beam to experiments in the hall of the present Antiproton Accumulator Complex (AAC) [1]. This paper describes the feasibility study of such a scheme [2]. research-article

The antiproton decelerator (AD), a simplified antiproton source (feasibility study) Autin Bruno Baird S A Berlin D Boillot J Bosser Jacques Brouet M Caspers Friedhelm Chanel M Chohan V Eriksson T Garoby R Giannini R Giovannozzi Massimo Gruber J Hémery J Y Koziol Heribert CERN MacCaferri R Maury S Metzmacher K D Möhl D Mulder H Pedersen F Perriollat F Poncet Alain Riunaud J P Serre C Simon Daniel Jean Tranquille G Tuyn Jan Willem Nicolaas Williams B Williams D J 1995 In view of a possible future physics programme concerning antihydrogen a simplified scheme for the provision of antiprotons of a few MeV has been studied. It uses the present target area and the modified Antiproton Collector (AC) in its present location. In this report all the systems are reviewed and their modifications discussed. PREPRINT

European Hybrid Spectrometer 1979 ARC011808

The LHC Lead Injector Chain Beuret A Borburgh J Blas A Burkhardt H Carli Christian Chanel M Fowler A Gourber-Pace M Hancock S Hourican M Hill C E Jowett John M Kahle K Küchler D Lombardi A M Mahner E Manglunki Django Martini M Maury S Pedersen F Raich U Rossi C Royer J P Schindl Karlheinz Scrivens R Sermeus L Shaposhnikova Elena Tranquille G Vretenar Maurizio Zickler T 2004 A sizeable part of the LHC physics programme foresees lead-lead collisions with a design luminosity of 1027 cm-2 s-1. This will be achieved after an upgrade of the ion injector chain comprising Linac3, LEIR, PS and SPS machines [1,2]. Each LHC ring will be filled in 10 min by almost 600 bunches, each of 7×107 lead ions. Central to the scheme is the Low Energy Ion Ring (LEIR) [3,4], which transforms long pulses from Linac3 into high-brilliance bunches by means of multi-turn injection, electron cooling and accumulation. Major limitations along the chain, including space charge, intrabeam scattering, vacuum issues and emittance preservation are highlighted. The conversion from LEAR (Low Energy Antiproton Ring) to LEIR involves new magnets and power converters, high-current electron cooling, broadband RF cavities, and a UHV vacuum system with getter (NEG) coatings to achieve a few 10-12 mbar. Major hardware changes in Linac3 and the PS are also covered. An early ion scheme with fewer bunches (but each at nominal intensity) reduces the work required for early LHC ion operation in spring 2008. research-article

The Design of the Special Magnets for PIMMS/TERA Borburgh J Crescenti M Fowler A Hourican M Metzmacher K D Sermeus L 2004 In the framework of a collaboration agreement with the TERA Foundation, CERN provided the design, drawings and engineering specifications for two kickers, one chopper and three bumper magnets as well as three magnetic and two electrostatic septa, power supplies for the electrostatic septa, kickers and bumpers including control electronics for the PIMMS/TERA proton and carbon ion medical synchrotron. The first application will be in the Italian National Centre for Hadrontherapy, to be constructed in Pavia. The main features of the devices are described along with the strategic design choices, directed by the demand for very high reliability and minimum maintenance. research-article

ACOL Ejection Kicker Magnet Proposals Metzmacher K D Sermeus L 1985 PREPRINT

Report of the Study Group on the New Multi-Turn Extraction in the PS Machine Berrig O E Borburgh J Burnet Jean Paul Cappi R CERN Giovannozzi Massimo Kalbreier Willi Martini M Müller A S Métral Elias Metzmacher K D Riunaud J P Sakumi A Scaramuzzi P Sermeus L Steerenberg R Zickler T 2004 Since the year 2001 considerable efforts were devoted to the study of a possible replacement of the Continuous Transfer (CT) extraction mode from the PS to the SPS. Such an approach is based on the use of stable islands of phase space, generated by sextupoles and octupoles, to capture the beam inside, thanks to a properly chosen tune variation. Both numerical simulations and measurements with beam were performed to understand the properties of this new extraction mode. Recently, a Study Group was set-up with the mandate of studying this novel extraction in view of using it as a replacement for the CT, as well as technical issues related with this approach. The results of the analysis carried out so far, and the conclusions of the Study Group are presented and discussed in this report. PREPRINT

Specification for the power supply for dump bumper magnets of the synchrotron accelerator Crescenti M Fowler A Metzmacher K Sermeus L 2003 A synchrotron machine, capable to accelerate either light ions or protons, will be the basic instrument of the CNA (Centro Nazionale di Adroterapia), the medical centre dedicated to the cancer therapy, that will be built in Italy in the near future. The machine complex consists of one proton-carbon-ion linac that will accelerate the particles up to an energy of 7 MeV/u. An injection line will transport them to the synchrotron ring where the injected particles will be accelerated and extracted with an energy ranging from 60 to 250 MeV for protons and from 120 to 400 MeV/u for carbon ions. Fig. 1 shows a preliminary schematic picture of the CNA medical centre. SLINTNOTE

Specification for the power supply for injection bumper magnets of the synchrotron accelerator Crescenti M Fowler A Metzmacher K Sermeus L 2003 A synchrotron machine, capable to accelerate either light ions or protons, will be the basic instrument of the CNA (Centro Nazionale di Adroterapia), the medical centre dedicated to the cancer therapy, that will be built in Italy in the near future. The machine complex consists of one proton-carbon-ion linac that will accelerate the particles up to an energy of 7 MeV/u. An injection line will transport them to the synchrotron ring where the injected particles will be accelerated and extracted with an energy ranging from 60 to 250 MeV for protons and from 120 to 400 MeV/u for carbon ions. Fig. 1 shows a preliminary schematic picture of the CNA medical centre. SLINTNOTE

Specification for the power supply for tune kicker magnets of the synchrotron accelerator Crescenti M Fowler A Metzmacher K Sermeus L 2003 A synchrotron machine, capable to accelerate either light ions or protons, will be the basic instrument of the CNA (Centro Nazionale di Adroterapia), the medical centre dedicated to the cancer therapy, that will be built in Italy in the near future. The machine complex consists of one proton-carbon-ion linac that will accelerate the particles up to an energy of 7 MeV/u. An injection line will transport them to the synchrotron ring where the injected particles will be accelerated and extracted with an energy ranging from 60 to 250 MeV for protons and from 120 to 400 MeV/u for carbon ions. Fig. 1 shows a preliminary schematic picture of the CNA medical centre. SLINTNOTE

Specification for Dump Bumper, Injection Bumper, Chopper Dipole and Tune Kicker Magnets Crescenti M Fowler A Metzmacher K Sermeus L 2003 A synchrotron machine, capable to accelerate either light ions or protons, will be the basic instrument of the CNA (Centro Nazionale di Adroterapia), the medical center dedicated to the cancer therapy, that will be built in Italy in the near future. The machine complex consists of one proton-carbon-ion linac that will accelerate the particles till the energy of 7 MeV/u. An injection line will transport them to the synchrotron ring where the injected particles will be accelerated and extracted with an energy ranging from 60 to 250 MeV for protons and from 120 to 400 MeV/u for carbon ions. Fig. 1 shows a preliminary schematic picture of the CNA medical center. SLINTNOTE

Final Design, Special Magnets Borburgh J Crescenti M Fowler A Hourican M Metzmacher K Sermeus L 2003 The final design review for the 5 different Septa and 5 different Bumper, Chopper and Kicker systems is given. The specifications for all items have been finalized and the parameters have been fixed and these are shown in two tables. The present status of each special magnet is reported on. SLINTNOTE

Conclusions du MD BFA9-21 Sermeus L 2003 Afin de tester la faisabilité de la nouvelle extraction multi-tours en cours d'étude au PS, les BFA doivent être pulsés à des niveaux de tensions différents de ceux utilisés pour le CT actuel. Le but du MD était de déterminer s'il est possible d'utiliser les BFA pour effectuer les deux types d'éjection dans un même supercycle. SLINTNOTE

New methods of testing Lorentz violation in electrodynamics Tobar M E Wolf P Fowler A Hartnett J G 2005 We investigate experiments that are sensitive to the scalar and parity-odd coefficients for Lorentz violation in the photon sector of the Standard Model Extension (SME). Of the classic tests of special relativity, Ives-Stilwell (IS) experiments are shown to be sensitive to the scalar coefficient, but at only parts in 10^4. We then propose asymmetric Mach-Zehnder interferometers with different electromagnetic properties in the two arms. A recycling technique based on an travelling wave resonator is also proposed to improve the sensitivity. Based on these proposals we estimate that with present technology, measurements of the scalar and parity odd coefficients should be possible at parts in 10^11 and 10^15 respectively. PREPRINT

The Injection Bumper System for LEIR Fowler A 2004 To satisfy the ion beam luminosity requirements for CERN's future Large Hadron Collider (LHC), a small accumulator, the Low Energy Ion Ring (LEIR), is being built in the injector chain of accelerators. LEIR will use a combined longitudinal and transverse multi-turn injection scheme which requires a bumper system comprising four individually pulsed dipole magnets. The paper discusses the bumper system, in particular the power supplies which will produce a pulsed current linearly decreasing from 1.2kA to zero in a time variable between 120µs and 300µs. Each power supply employs a primary discharge circuit, comprising a storage capacitor, an IGBT switch and the magnet load inductance, to establish the peak current, and a free-wheel circuit in parallel with the magnet, comprising a diode and capacitor, to produce the linear current slope. A novel feature of the circuit is the use of a variable bias voltage on the free-wheel capacitor, allowing continuous variation of the slope duration. research-article

Design Review, Special Magnets Borburgh J Crescenti M Fowler A Hourican M Metzmacher K Sermeus L 2003 The status of the design review for the 5 different Septa and 5 different Bumper, Chopper and Kicker systems is given. The specifications for all items have been reviewed and the parameters have been fixed and these are shown in five tables. In some cases the operational requirements are not completely fixed and optional pulsed power supplies are proposed to cope with most situations. The present status of each special magnet is reported on. SLINTNOTE