SCENT 300 Project Status Review Leandro A.C. Piazza on behalf of SCENT team INFN - Laboratori Nazionali del Sud Catania, Italy 1
SCENT Project KeyDates Superconducting Cyclotron for Exotic Nuclei and Therapy. Study of a high energy Superconducting Cyclotron able to deliver 12 C + and protons for hadrontherapy 2003 INFN Project of 250 AMeV June 2006 IBA - INFN agreement Jan 2007 Upgrade of the cyc up to 300 AMeV May 2007 Adoption of the PM procedures July 2008 Detail design of the 300 AMeV June 2009 End of the Detail Design 2
SCENT Main Parameters 3
Mission Project Mission Design (and realization) of an innovative high energy hadrontherapy Superconducting Cyclotron, that will be installed in a proton therapy facility. Development of a forceful process of design (and realization), quality and reliability based, firstly in our research center. Modus Operandi The team work is based on Communication first of all Planning & control: well defined responsibilities Project team: autonomy on the job 4
Context analysis Strengths (positive internal elements) LNS Technology knowledge Weaknesses (negative internal elements) Never done before Working as a research centre (not a factory) Control/communication resistance Opportunities (positive external elements) IBA collaboration Threats (negative external elements) Incertitude of facility realization action LNS internal collaboration PM procedures Meetings & infos exchange Setting up the project 5
PM Tools/Procedures Work Package Written by the executor and checked by the supervisor (responsible and Team Planning) Team Meeting Team members meet every two weeks to report, to discuss and to brief the technical & organization development (project consciousness and control) Progress Status report Critical written report of advancement of the job (project control, formal communication) Using internal reviews as a routine management tool. 6
Detail Design Phase schedule Final GANTT chart of the detail design phase Team members: 10 people involved in 1 year Effective Manpower: Around 5 man-years People availability prevision 7
Transport System Detailed design of cyclotron transport system Upper ring transport system, weight 100.1tons + support weight Central ring transport system, weight 80.4 tons + support weight Technical characteristics 4 main packages Lower ring transport system, weight 100.1tons + support weight 8
Lifting System Detailed design of cyclotron lifting system Technical characteristics Effective stroke: 1550 mm Lifting time: 20 min Lifted Weight: 100 tons 9
Mapping System Preliminary design of cyclotron magnet mapping system Technical characteristics Search Coil technology height: 50mm 4000 turns wire section: 50 um range: -400-1300 mm; 720 measure angular positions (0.5deg rotation) full map time: 3.600 sec 10
Magnet System - Final study of the cyclotron magnet - Detailed mechanical design and BOM Technical Characteristics Parameters Value Number of sectors 4 Pole radius 132.5 cm Mean Magnetic Field 3.15T 4.2T Peak Magnetic Field 4.95T Coils 2 superc. Current Density 47 A/mm2 Stored Energy 35 MJ Isochronization level ΔB/B <10-4 11
cm Beam Dynamics: Radial beam envelop cm 0. 0.1 1.5 0.8 1 1.33333 old magnetic design structural resonance 0.6 0.5 0.4 0.3333 0.2 Qr 1 1.1 1.2 1.3 1.4 Qr 0.4 260 292 0.4 260 292 0.2 0.2 0 0 0.2 0.2 0.4 0 30 60 90 120 150 180 210 240 270 300 energy 0.4 0 30 60 90 120 150 180 210 240 270 300 energy 12
Trimming C12 to H2+ 0.015 0.01 5 10 3 DEISOCHR. C12 vs H2+ RF SETTING: nu0=24.18717 MHz 24.18587 MHz Δf: 1,3 KHz TRIMMER RANGE TUNING (~ 6 KHz) f RF = cost 0 5 10 3 0 50 100 150 RADIUS 300 280 280 124 Change only the magnetic field db( r) db 260 ( r) 260 Baveh2( r) Bave( r) gauss 240 220 240 220 200 0 50 100 0 13 26 39 52 65 78 91 104 117 130 r r 13
Trimming C12 to H2+ CC 1 CC VALLEY MAIN COIL MAIN COIL : 4586 A/cm 2 4586+53.7 A/cm 2 CC 1: 104.47 A/cm 2 8X8 cm 2, R int =171 cm, H min =81 cm >> 1.32 kw/coil CC VAL: 395.1 A/cm 2 5X4 cm 2, R int =106 cm, H min =69 cm >> 3.24 KW/coil 14
Phase slip Carbon and Proton beam Trimming C12 to H2+ 260 a 94 r 40 20 CC VALLEY 12 C 6+ CC 1 EOc12 10 EOh2 10 0 deg 20 H 2 + MAIN COIL 40 extraction 0 61 122 183 244 305 EOc12 0 EOh2 0 MeV 124 15
Magnet Bill Of Materials 16
Extraction Systems - Preliminary design stripper - Final study deflector protons Technical characteristics Two independent extraction channels Three bending magnets Fixed MCs Carbon ions 17
Extraction Systems Layout Technical Characteristics Proton beam R EXT =122 cm 260 AMeV protons 1 single turn 4 Passive MCs ε ~ 100 % Carbon beam V ED1,2 = 50kV Carbon ions E max = 120kV/cm 4 Passive MCs ε ~ 60 % 18
Extraction Systems Proton Beam Stripper mechanism 19
Extraction Systems Carbon Beam Carbon beam V ED1,2 = 50kV E max = 120kV/cm ED length: 300mm ε ~ 60 % 20
Extraction Systems Carbon Beam Carbon beam V ED1,2 = 50kV E max = 120kV/cm ED length: 300mm ε ~ 60 % 21
Extraction Systems Beam Dynamics Carbon Beam Proton Beam 22
RF System Final study of the RF System RF Specifications Parameters Technical Characteristics Value Resonance freq (h=4) Voltage range 98 MHz 70-120 kv Quality factor 8500 RF Power Dissipation Less than 50 kw Resonant mode λ/2 Electrical dee width 30 Material Final Power Amplifier OFHC Copper TH 535 tetrode 23
Injection System - Study of the Injection - Study of the Central Region Technical characteristics E inj =25 AKeV V inflect = 14 KV gap inflect = 6 mm E inflect = 23KV/cm Vdee inj=70 kv Bo=3,15 tesla 2170 mm ECR sources 24
Assembling Studies The final design of SCENT300 Magnet was completed and no other study is expected: the technical drawings of the iron steel are also accomplished out. 25
PM Experience What can/must be do better Planning (people availability and time estimation); The Quality Assurance procedures (initially planned but not implemented); Student support; Risks management (not well structured). What was well done Detail Design successfully accomplished in time; Good resources response to NEW approach. Project Mission Development of a forceful process of design, quality and reliability based. Time Attention, Team Consciousness, Shared Vision 26
IBA team Acknowledgements JINR team LNS SCENT team Luciano Calabretta (INFN Research Director), Giacomo Cuttone (INFN Research Director), Santi Passarello (INFN Mechanical Designer and Drawer), Giuseppe Gallo (INFN Mechanical Designer and Drawer), * Mario Maggiore (INFN Researcher), * Maurizio Re (INFN Technologist, Vacuum expert) * Donatella Garufi (Mechanical Designer actually PhD student), * Daniela Campo (INFN physicist actually PhD student), * Sara La Rosa (UNICT Student), * Mariangela Camarda (Drawer) * Leandro Piazza (INFN Technologist) piazza@lns.infn.it * Temporary position 27