The Current Cyclotron Development Activities at CIAE. Current acyclotron
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1 Current Cyclotron Development Activities Shizhong An, Tianjue Zhang China Institute of Atomic Energy (CIAE) Beijing Greatful acknowledged is very fruitful and long lasting collaboration with PSI & Triumf, LNLS. LNLS 38-1
2 Content Introduction Operating 0.5mA CYCIAE-10 CYCIAE-10: Beam current upgrade Progress of Being Constructed Projects CYCIAE-100 CYCIAE-14 Future Plan D-/H-: CYCIAE-70 5mA: CYCIAE-800 Conclusion 38-2
3 Introduction A 10 MeV Central Region Model cyclotron, CYCIAE-10, was successfully built and the internal beam current was up to 430μA. upgrading on CYCIAE-10 is being made to increase the beam current to ma level for the possible application research related to BNCT. Two cyclotrons are being built : CYCIAE-100 and CYCIAE-14. As the driving accelerator for the Beijing Radioactive IonBeam Facility (BRIF), CYCIAE-100 is a main part of upgrade project of Beijing Tandem Laboratory and it has a great construction progress this year. Some future developing plans are being conducted : Based on the applications for ADS systems and proton radiography, 800 MeV high power proton cyclotron, CYCIAE-800; 70 MeV compact high intensity H- cyclotron, CYCIAE-70 for multi uses including radioactive ion-beam (RIB) production. 38-3
4 Beam Upgrade of CYCIAE-10 A central region model (CRM) is specially designed to confirm the design results and test various aspects of techniques, which will be used for CYCIAE
5 Beam Upgrade of CYCIAE-10 Beam Ion Source Accelerated Ions H- 10 MeV Type H- multicusp Beam intensity internal target H- 430 µa Arc power 2.5 kw Extracted proton 230 µa Magnet structure RF system # of sectors 4 RF power 13.5 kw Sector angle , 30 Peak field 1.75 T #, angle of Dee Frequency Coil power 6 kw D voltage 40 kv Beam extraction: stripping extraction 38-5 Control: PLC 70.5 MHz
6 CYCIAE-10 has successfully built and tested: internal beam is up to 432μA and extraction beam reaches 230μA under the condition of 64% RF duty ratio MeV
7 beam injection efficiency is 17.7%, the beam acceleration efficiency is 94.5%, the beam extraction efficiency is near 100%. 38-7
8 Beam upgrade of CYCIAE-10 beam upgrade is going on 1mA Some high intensity cyclotron studies: including strong focusing straight edge sector magnet, high stability RF accelerating system, high efficiency injection, extraction, beam dynamics, etc It has laid a solid foundation for the construction of PET cyclotrons. For the possible application research related to Boron neutron capture therapy 38-8 (BNCT ). PSI, Villigen, Switzerland,
9 Main progress of CYCIAE-100 CYCIAE-100 A New Project of Cyclotron Based Radioactive Ion Beam Facility: 75 MeV ~ 100 MeV, 200 µa ~ 500 µa: 50kW CYCIAE-100 will get the first beam at the end of 2013! As one of the main projects, the Beijing Radioactive Ion-beam Facility (BRIF) will be used in fundamental and applied research such as neutron physics, nuclear structure, material and life sciences, medical isotope production. 38-9
10 Beijing Radioactive Ion-beam Facility (BRIF) 38-10
11 38-11
12 General Description of CYCIAE Based on the basic design requirement of the energy and current for this machine, we decided to use a compact magnet and acceleration with stripping extraction for CYCIAE-100. It is a fixed field, four sectors cyclotron. Tow cavities installed into the valleys of the magnet will accelerate beam 4 times per turn. beam will be injected axially into the central region from two injection lines, for high average current and for pulse beam respectively.
13 General View of CYCIAE
14 Main Parameters of CYCIAE
15 7 Target Stations for CYCIAE
16 Main progress of CYCIAE , the preliminary designs 2007~2009 the detailed design & construction 2010: main magnet in the final assembly stage. Main magnet coils are ready. Two 100kW RF power supplies have been tested and the measured f and Q values coincide well with the design for the RF cavity. vacuum chamber and elevating system will be completed soon. Received satisfactory results and passed the formal certification
17 Main progress of CYCIAE-100 Magnet 4 straight sections and the maximal filed: 1.35T Extraction radius of 2m Dia mm Pole Dia.: 4000mm Height 2820 mm Weight 435 t 38-17
18 Cast steel for the top/bottom yokes and return yoke were accomplished in yokes are formed from 5 pots molten steel pouring together
19 Yokes, Poles, Shimming bars, center plug 38-19
20 Turn-over of main magnet top/bottom Yokes: tools for installation of CYCIAE
21 Vacuum checking for top/bottom yokes is under going now. magnet is expected to be finished by end of
22 38-22
23 Main progress of CYCIAE-100 RF System: 2 cavities in the valleys, 2 opposite extraction system frequency: MHz Q value: dissipated power on the two cavities: 57kW. 57kW voltage: 60kV-120kV 38-23
24 Main progress of CYCIAE-100 Installed test RF cavity cold measurement frequency: 45.8 MHz, MHz Q value:
25 Main progress of CYCIAE-100 RF System: 2 100kW RF power generators test cavity is inside the vacuum tank with power
26 Main progress of CYCIAE-100 Elevating system vacuum cryopanel Magnetic field measurement System Main vacuum chamber
27 Main progress of CYCIAE-100 H- Source H- ion source test stand have been built: above 10mA, the normalized emittance of 80% of the beam reach 0.45 mm-mrad
28 Construction of CYCIAE-14 CYCIAE-14 Similar to the operating CYCIAE-10 Design Goal: PET cyclotrons: 400μA, 14.6 MeV First beam will be got next year! 38-28
29 Construction of CYCIAE
30 D-/H- CYCIAE-70 40µA/ 18~33 MeV D+, 700µA/35~70 MeV H+ RIB production and the field of nuclear medicine. Based on the design of CYCIAE
31 Concept Design of 5 ma CYCIAE-800 5mA, 100MeV 800 MeV. Lots of work are done together with Werner Joho, Andreas Adelmann, Peter Sigg, etc. from PSI: Layout of CYCIAE-800 is based on the PSI Ring. Ring First step: 0.5mA CYCIAE100 as injector Second step: New 5mA 100MeV cyclotron. 4MW beam power. Main purpose for 150MWth ADS demonstrator
32 10mA, 1GeV PSI Dream Facility 10MW beam power for 375MWth ADS burner: J.Grillenberger, M. Seidel, PSI, Beam Dynamics Newsletter, No. 49, p61. Aug
33 Concept Design of 5 ma CYCIAE Item Value Sector number 9 Kinetic energy (MeV) Max Magnetic Field(T) Average orbit radius (m) RF frequency(mhz) Peak RF voltage (MV) 1.0 Harmonic number 6 Main cavity number 5 Flat-top cavity number 1 or 2 Qr/Qz at extraction 1.55/1.40 dr/dn at extraction (mm) 7 (centering injection)
34 Concept Design of 5 ma CYCIAE-800 inner/outer radius of pole (mm) inner/ outer radius of Yoke (mm) width of magnet angle ( ) 2460/ 5700 spiral angle ( ) /
35 Concept Design of 5 ma CYCIAE-800 Tune diagram: No Space charge 38-35
36 Concept Design of 5 ma CYCIAE-800 R0.4m 6.9m 1.6m 5.5m 2.7m 0.2m 1.9m Cavity parameters are scaled from the existing 50.6MHz PSI cavity Peak Voltage (MV) 1.0 Frequency (MHz) Power (MW) 1.5
37 SUMMARY A remarkable progress has been achieved in the past few years in operating CYCIAE-10 and in the design, construction and testing components of CYCIAE-100. most of key equipments of CYCIAE-100 have been fabricated or will be finished by the end of this year. first beam will be got at the end of design of a D-/H- CYCIAE-70 is done. Preliminary design study of 5mA CYCIAE-800 is existing
38 Welcome to visit CIAE, Beijing 38-38
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