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Title: Development of a compact electron-cyclotron-resonance ion source for high-energy carbon-ion therapy

Abstract

Ion sources for medical facilities should have characteristics of easy maintenance, low electric power consumption, good stability, and long operation time without problems (one year or longer). For this, a 10 GHz compact electron-cyclotron-resonance ion source with all-permanent magnets (Kei2 source) was developed. The maximum mirror magnetic fields on the beam axis are 0.59 T at the extraction side and 0.87 T at the gas-injection side, while the minimum B strength is 0.25 T. These parameters have been optimized for the production of C{sup 4+} based on the experience at the 10 GHz NIRS-ECR ion source and a previous prototype compact source (Kei source). The Kei2 source has a diameter of 320 mm and a length of 295 mm. The beam intensity of C{sup 4+} was obtained to be 530 {mu}A under an extraction voltage of 40 kV. The beam stability was better than 6% at C{sup 4+} of 280 {mu}A during 90 h with no adjustment of the operation parameters. The details of the design and beam tests of the source are described in this paper.

Authors:
; ; ; ; ; ; ; ; ;  [1];  [2];  [2];  [2];  [3]
  1. Graduate School of Mechanical Engineering, Toyo University, 2100 Kujirai, Kawagoe, Saitama 350-8585 (Japan) and National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555 (Japan)
  2. (Japan)
  3. (KVI), University of Groningen, NL-9747 AA Groningen (Netherlands)
Publication Date:
OSTI Identifier:
20723243
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 76; Journal Issue: 11; Other Information: DOI: 10.1063/1.2132267; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; CARBON IONS; DESIGN; ECR ION SOURCES; ELECTRIC POTENTIAL; ELECTRIC POWER; GAS INJECTION; GHZ RANGE 01-100; ION BEAMS; MAGNETIC MIRRORS; MAINTENANCE; OPERATION; PERMANENT MAGNETS; RADIOTHERAPY; STABILITY

Citation Formats

Muramatsu, M., Kitagawa, A., Sakamoto, Y., Sato, S., Sato, Y., Ogawa, Hirotsugu, Yamada, S., Ogawa, Hiroyuki, Yoshida, Y., Drentje, A.G., National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Accelerator Engineering Corporation, Ltd., 2-13-1 Konakadai, Inage, Chiba 263-0043, Department of Mechanical Engineering, Toyo University, 2100 Kujirai, Kawagoe, Saitama 350-8585, and Kernfysisch Versneller Instituut. Development of a compact electron-cyclotron-resonance ion source for high-energy carbon-ion therapy. United States: N. p., 2005. Web. doi:10.1063/1.2132267.
Muramatsu, M., Kitagawa, A., Sakamoto, Y., Sato, S., Sato, Y., Ogawa, Hirotsugu, Yamada, S., Ogawa, Hiroyuki, Yoshida, Y., Drentje, A.G., National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Accelerator Engineering Corporation, Ltd., 2-13-1 Konakadai, Inage, Chiba 263-0043, Department of Mechanical Engineering, Toyo University, 2100 Kujirai, Kawagoe, Saitama 350-8585, & Kernfysisch Versneller Instituut. Development of a compact electron-cyclotron-resonance ion source for high-energy carbon-ion therapy. United States. doi:10.1063/1.2132267.
Muramatsu, M., Kitagawa, A., Sakamoto, Y., Sato, S., Sato, Y., Ogawa, Hirotsugu, Yamada, S., Ogawa, Hiroyuki, Yoshida, Y., Drentje, A.G., National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Accelerator Engineering Corporation, Ltd., 2-13-1 Konakadai, Inage, Chiba 263-0043, Department of Mechanical Engineering, Toyo University, 2100 Kujirai, Kawagoe, Saitama 350-8585, and Kernfysisch Versneller Instituut. Tue . "Development of a compact electron-cyclotron-resonance ion source for high-energy carbon-ion therapy". United States. doi:10.1063/1.2132267.
@article{osti_20723243,
title = {Development of a compact electron-cyclotron-resonance ion source for high-energy carbon-ion therapy},
author = {Muramatsu, M. and Kitagawa, A. and Sakamoto, Y. and Sato, S. and Sato, Y. and Ogawa, Hirotsugu and Yamada, S. and Ogawa, Hiroyuki and Yoshida, Y. and Drentje, A.G. and National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555 and Accelerator Engineering Corporation, Ltd., 2-13-1 Konakadai, Inage, Chiba 263-0043 and Department of Mechanical Engineering, Toyo University, 2100 Kujirai, Kawagoe, Saitama 350-8585 and Kernfysisch Versneller Instituut},
abstractNote = {Ion sources for medical facilities should have characteristics of easy maintenance, low electric power consumption, good stability, and long operation time without problems (one year or longer). For this, a 10 GHz compact electron-cyclotron-resonance ion source with all-permanent magnets (Kei2 source) was developed. The maximum mirror magnetic fields on the beam axis are 0.59 T at the extraction side and 0.87 T at the gas-injection side, while the minimum B strength is 0.25 T. These parameters have been optimized for the production of C{sup 4+} based on the experience at the 10 GHz NIRS-ECR ion source and a previous prototype compact source (Kei source). The Kei2 source has a diameter of 320 mm and a length of 295 mm. The beam intensity of C{sup 4+} was obtained to be 530 {mu}A under an extraction voltage of 40 kV. The beam stability was better than 6% at C{sup 4+} of 280 {mu}A during 90 h with no adjustment of the operation parameters. The details of the design and beam tests of the source are described in this paper.},
doi = {10.1063/1.2132267},
journal = {Review of Scientific Instruments},
number = 11,
volume = 76,
place = {United States},
year = {Tue Nov 15 00:00:00 EST 2005},
month = {Tue Nov 15 00:00:00 EST 2005}
}