Design of a compact, permanent magnet electron cyclotron resonance ion source for proton and H2+ beam production

Xianlu Jia; Tianjue Zhang; Shan Luo; Chuan Wang; Xia Zheng; Zhiguo Yin; Junqing Zhong; Longcheng Wu; Jiuchang Qin
February 2010
Review of Scientific Instruments;Feb2010, Vol. 81 Issue 2, p02A321
Academic Journal
A 2.45 GHz microwave ion source was developed at China Institute of Atomic Energy (CIAE) for proton beam production of over 60 mA [B.-Q. Cui, Y.-W. Bao, L.-Q. Li, W.-S. Jiang, and R.-W. Wang, Proceedings of the High Current Electron Cyclotron Resonance (ECR) Ion Source for Proton Accelerator, APAC-2001, 2001 (unpublished)]. For various proton beam applications, another 2.45 GHz microwave ion source with a compact structure is designed and will be built at CIAE as well for high current proton beam production. It is also considered to be used for the test of H2+ beam, which could be injected into the central region model cyclotron at CIAE, and accelerated to 5 MeV before extraction by stripping. The required ECR magnetic field is supplied by all the permanent magnets rather than electrical solenoids and six poles. The magnetic field distribution provided by this permanent magnets configuration is a large and uniformly volume of ECR zone, with central magnetic field of a magnitude of ∼875 Gs [T. Taylor and J. S. C. Wills, Nucl. Instrum. Methods Phys. Res. A 309, 37 (1991)]. The field adjustment at the extraction end can be implemented by moving the position of the magnet blocks. The results of plasma, coupling with 2.45 GHz microwave in the ECR zone inside the ion source are simulated by particle-in-cell code to optimize the density by adjusting the magnetic field distribution. The design configuration of the ion source will be summarized in the paper.


Related Articles

  • A Permanent-Magnet Microwave Ion Source For A Compact High-Yield Neutron Generator. Waldmann, O.; Ludewigt, B. // AIP Conference Proceedings;6/1/2011, Vol. 1336 Issue 1, p479 

    We present recent work on the development of a microwave ion source that will be used in a high-yield compact neutron generator for active interrogation applications. The sealed tube generator will be capable of producing high neutron yields, 5×1011 n/s for D-T and ∼1×1010 n/s for...

  • Microwave proton sources for the IUCF LENS project. Klyachko, A. V.; Derenchuk, V. P.; Bogdanov, A. A.; Solberg, K. // Review of Scientific Instruments;Mar2006, Vol. 77 Issue 3, p03B501 

    The Indiana University Cyclotron Facility (IUCF) has constructed and placed in operation a Low Energy Neutron Source using a 10 mA, 7 MeV proton beam incident on a beryllium target. A microwave ion source used for the IUCF cyclotrons was modified to work in this application. In parallel, a 150...

  • A compact ECR ion source for bio-organic mutation (abstract). Chundong, Hu; Zengliang, Yu; Xiuluan, Yao; Jianjun, He; Xiaodong, Zhang // Review of Scientific Instruments;Apr94, Vol. 65 Issue 4, p1312 

    An ECR ion source was excited by microwaves (2.45 GHz). The discharge chamber diameter of the ECR ion source into which microwaves were introduced by a waveguide and a vacuum window, is smaller than the cut off for TE or TM modes. The magnetic structure is built with an NdFeB permanent magnet...

  • Pulse modulated microwave operation on large bore electron cyclotron resonance ion source with cylindrically comb-shaped magnetic fields configuration. Hirai, Yoshiaki; Kato, Yushi; Sato, Fuminobu; Iida, Toshiyuki // Review of Scientific Instruments;Feb2010, Vol. 81 Issue 2, p02A325 

    In order to enhance efficiency of an electron cyclotron resonance (ECR) plasma for broad and dense ion beam source under the low pressure, the magnetic field configuration is constructed by a pair of comb-shaped magnet which has opposite polarity each other, and which cylindrically surrounds the...

  • Present status of the 2.45 GHz ECRIS for a light ion accelerator at IAP. Cojocaru, G.; Martin, D.; Ivanov, E.; Macovei, M. // Review of Scientific Instruments;Mar96, Vol. 67 Issue 3, p1183 

    Presents an update on the status of a 2.45 gigahertz electron cyclotron resonance ion source for a light ion accelerator at the Institute of Atomic Physics in Bucharest, Romania. Axial magnetic field distribution; Radial magnetic field structure; Components of the microwave system.

  • Broad Ion Beam Extraction from Large Bore ECR Ion Source with Cylindrically Comb-Shaped Magnetic Fields Configuration by Feeding Simultaneously 11 to 13 GHz and 2.45 GHz Microwaves. Kato, Y.; Satani, T.; Matsui, Y.; Watanabe, T.; Muramatsu, M.; Tanaka, K.; Asaji, T.; Kitagawa, A.; Sato, F.; Iida, T. // AIP Conference Proceedings;11/3/2008, Vol. 1066 Issue 1, p348 

    We tried to enlarge the operation window of an electron cyclotron resonance (ECR) ion source for producing the ECR plasma confined by cylindrically comb-shaped magnetic field, and for extracting the broad ion beam under the low pressures and low microwave powers. The magnetic field by permanent...

  • First results from the new RIKEN superconducting electron cyclotron resonance ion source (invited). Nakagawa, T.; Higurashi, Y.; Ohnishi, J.; Aihara, T.; Tamura, M.; Uchiyama, A.; Okuno, H.; Kusaka, K.; Kidera, M.; Ikezawa, E.; Fujimaki, M.; Sato, Y.; Watanabe, Y.; Komiyama, M.; Kase, M.; Goto, A.; Kamigaito, O.; Yano, Y. // Review of Scientific Instruments;Feb2010, Vol. 81 Issue 2, p02A320 

    The next generation heavy ion accelerator facility, such as the RIKEN radio isotope (RI) beam factory, requires an intense beam of high charged heavy ions. In the past decade, performance of the electron cyclotron resonance (ECR) ion sources has been dramatically improved with increasing the...

  • Electron cyclotron resonance plasma photos. Rácz, R.; Biri, S.; Pálinkás, J. // Review of Scientific Instruments;Feb2010, Vol. 81 Issue 2, p02B708 

    In order to observe and study systematically the plasma of electron cyclotron resonance (ECR) ion sources (ECRIS) we made a high number of high-resolution visible light plasma photos and movies in the ATOMKI ECRIS Laboratory. This required building the ECR ion source into an open ECR plasma...

  • Design of a new electron cyclotron resonance ion source at Oshima National College of Maritime Technology. Asaji, T.; Hirabara, N.; Izumihara, T.; Hitobo, T.; Nakamizu, T.; Ohba, T.; Nakamura, T.; Furuse, M.; Kato, Y. // Review of Scientific Instruments;2014, Vol. 85 Issue 2, p1 

    A new electron cyclotron resonance ion/plasma source has been designed and will be built at Oshima National College of Maritime Technology by early 2014. We have developed an ion source that allows the control of the plasma parameters over a wide range of electron temperatures for material...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics