Design study of electron cyclotron resonance-ion plasma accelerator for heavy ion cancer therapy

Inoue, T.; Hattori, T.; Sugimoto, S.; Sasai, K.
February 2014
Review of Scientific Instruments;2014, Vol. 85 Issue 2, p1
Academic Journal
Electron Cyclotron Resonance-Ion Plasma Accelerator (ECR-IPAC) device, which theoretically can accelerate multiple charged ions to several hundred MeV with short acceleration length, has been proposed. The acceleration mechanism is based on the combination of two physical principles, plasma electron ion adiabatic ejection (PLEIADE) and Gyromagnetic Autoresonance (GYRAC). In this study, we have designed the proof of principle machine ECR-IPAC device and simulated the electromagnetic field distribution generating in the resonance cavity. ECR-IPAC device consisted of three parts, ECR ion source section, GYRAC section, and PLEIADE section. ECR ion source section and PLEIADE section were designed using several multi-turn solenoid coils and sextupole magnets, and GYRAC section was designed using 10 turns coil. The structure of ECR-IPAC device was the cylindrical shape, and the total length was 1024 mm and the maximum diameter was 580 mm. The magnetic field distribution, which maintains the stable acceleration of plasma, was generated on the acceleration center axis throughout three sections. In addition, the electric field for efficient acceleration of electrons was generated in the resonance cavity by supplying microwave of 2.45 GHz.


Related Articles

  • Review on heavy ion radiotherapy facilities and related ion sources (invited). Kitagawa, A.; Fujita, T.; Muramatsu, M.; Biri, S.; Drentje, A. G. // Review of Scientific Instruments;Feb2010, Vol. 81 Issue 2, p02B909 

    Heavy ion radiotherapy awakens worldwide interest recently. The clinical results obtained by the Heavy Ion Medical Accelerator in Chiba at the National Institute of Radiological Sciences in Japan have clearly demonstrated the advantages of carbon ion radiotherapy. Presently, there are four...

  • A mode converter to generate a Gaussian-like mode for injection into the VENUS electron cyclotron resonance ion source. Lyneis, C.; Benitez, J.; Hodgkinson, A.; Plaum, B.; Strohmeier, M.; Thuillier, T.; Todd, D. // Review of Scientific Instruments;2014, Vol. 85 Issue 2, p1 

    A number of superconducting electron cyclotron resonance (ECR) ion sources use gyrotrons at either 24 or 28 GHz for ECR heating. In these systems, the microwave power is launched into the plasma using the TE01 circular waveguide mode. This is fundamentally different and may be less efficient...

  • Fullerene-rare gas mixed plasmas in an electron cyclotron resonance ion source. Asaji, T.; Ohba, T.; Uchida, T.; Minezaki, H.; Ishihara, S.; Racz, R.; Muramatsu, M.; Biri, S.; Kitagawa, A.; Kato, Y.; Yoshida, Y. // Review of Scientific Instruments;2014, Vol. 85 Issue 2, p1 

    A synthesis technology of endohedral fullerenes such as Fe@C60 has developed with an electron cyclotron resonance (ECR) ion source. The production of N@C60 was reported. However, the yield was quite low, since most fullerene molecules were broken in the ECR plasma. We have adopted gas-mixing...

  • Metallic beam developments for the SPIRAL 2 project. BaruĂ©, C.; Canet, C.; Dupuis, M.; Flambard, J. L.; Frigot, R.; Jardin, P.; Lamy, T.; Lemagnen, F.; Maunoury, L.; Osmond, B.; Peaucelle, C.; Sole, P.; Thuillier, T. // Review of Scientific Instruments;2014, Vol. 85 Issue 2, p1 

    The SPIRAL 2 facility, currently under construction, will provide either stable or radioactive beams at high intensity. In addition to the high intensity of stable beams, high charge states must be produced by the ion source to fulfill the RFQ LINAC injection requirements: Q/A = 1/3 at 60 kV ion...

  • New tandem type ion source based on electron cyclotron resonance for universal source of synthesized ion beams. Yushi Kato; Yosuke Kurisu; Dai Nozaki; Keisuke Yano; Daiju Kimura; Sho Kumakura; Youta Imai; Takuya Nishiokada; Fuminobu Sato; Toshiyuki Iida // Review of Scientific Instruments;2014, Vol. 85 Issue 2, p1 

    A new tandem type source has been constructed on the basis of electron cyclotron resonance (ECR) plasma for producing synthesized ion beams. We investigate feasibility and hope to realize the device which has wide range operation window in a single device to produce many kinds of ion beams based...

  • Operational test of micro-oven for 48Ca beam. Ozeki, K.; Kageyama, T.; Kidera, M.; Higurashi, Y.; Nakagawa, T. // Review of Scientific Instruments;2014, Vol. 85 Issue 2, p1 

    In order to supply a high-intensity and stable 48Ca beam from the RIKEN 18-GHz electron cyclotron resonance ion source, we are conducting operational tests of a micro-oven. A mixture of CaO and Al powders is placed into the crucible of the micro-oven and heated to produce metallic calcium by a...

  • Effect of frequency tuning on bremsstrahlung spectra, beam intensity, and shape in the 10 GHz NANOGAN electron cyclotron resonance ion source. Rodrigues, G.; Mal, Kedar; Kumar, Narender; Baskaran, R.; Lakshmy, P. S.; Mathur, Y.; Kumar, P.; Kanjilal, D.; Roy, A. // Review of Scientific Instruments;2014, Vol. 85 Issue 2, p1 

    Studies on the effect of the frequency tuning on the bremsstrahlung spectra, beam intensities, and beam shape of various ions have been carried out in the 10 GHz NANOGAN ECR ion source. The warm and cold components of the electrons were found to be directly correlated with beam intensity...

  • Permanent Magnet Microwave Source For Generation Of EUV Light. Hahto, S. K.; Leung, K.-N.; Reijonen, J.; Ji, Q.; Schneider, D.; Bruch, R.; Kondagari, S.; Merabet, H. // AIP Conference Proceedings;2005, Vol. 749 Issue 1, p179 

    A permanent magnet 6.4 GHz microwave plasma generator has been designed and constructed at Plasma and Ion Source Technology group at Lawrence Berkeley National Laboratory for applications in Extreme Ultraviolet Lithography (EUVL). In order to produce 13.5 nm EUV light, Xenon plasma was formed...

  • On the role of electron energy distribution function in double frequency heating of electron cyclotron resonance ion source plasmas. Schachter, L.; Stiebing, K. E.; Dobrescu, S. // Review of Scientific Instruments;2014, Vol. 85 Issue 2, p1 

    Double frequency heating (DFH) is a tool to improve the output of highly charged ions particularly from modern electron cyclotron resonance ion source installations with very high RF-frequencies. In order to gain information on the DFH-mechanism and on the role of the lower injected frequency we...


Read the Article


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

Try another library?
Sign out of this library

Other Topics