Abstract
We propose the construction of a compact linac as the injector of a cancer therapy facility at the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS). Based on a traditional setup, a new compact fast-bunching design is first introduced to optimize the 600 keV/u RFQ with a 0.05 pmA \(^{12}\hbox {C}^{4+}\) beam. This shortens the RFQ structure length from the standard design value of 272–230 cm while effectively regulating the particle loss and emittance growth. In addition, a detailed error analysis was performed after the optimization process. The error sources cover input beam parameters errors, machining errors and alignment errors. The simulation results show that the beam loss and emittance growth of the RFQ are acceptable and within typical ranges of error.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
T. Wangler, RF Linear Accelerators (Wiley, New York, 2008), p. 46
H. Eickhoff, R. Bar, A. Dolinskii, et al., HICAT—the German hospital-based light ion cancer therapy project. Paper presented at Particle Accelerator Conference, 2003. PAC 2003
K. Kawachi, T. Kanai, M. Endo et al., Radiation oncological facilities of the HIMAC. J. Jpn. Soc. Ther. Radiol. Oncol. 1, 19–29 (1989)
T. Ohno, T. Kanai, S. Yamada et al., Carbon ion radiotherapy at the Gunma University Heavy Ion Medical Center: new facility set-up. Cancers 3(4), 4046–4060 (2011). https://doi.org/10.3390/cancers3044046
T. Ohno, Particle radiotherapy with carbon ion beams. EPMA J. 4(1), 9–9 (2013). https://doi.org/10.1186/1878-5085-4-9
J.C. Yang, J. Shi, W.P. Chai et al., Design of a compact structure cancer therapy synchrotron. Nucl. Inst. Methods Phys. Res. A 756(16), 19–22 (2014). https://doi.org/10.1016/j.nima.2014.04.050
A. Kitagawa, T. Fujita, M. Muramatsu et al., Review on heavy ion radiotherapy facilities and related ion sources. Rev. Sci. Instrum. 81(2), 295 (2010). https://doi.org/10.1063/1.3268510
G. Liu, Y.R. Lu, Y. He et al., Design of a CW high charge state heavy ion RFQ for SSC-LINAC. Nucl. Instrum. Methods Phys. Res. A 701(3), 186–193 (2013). https://doi.org/10.1016/j.nima.2012.11.017
C. Li, L. Sun, Y. He et al., Conceptual design of LEBT and RFQ for the HIAF linac. Nucl. Instrum. Methods Phys. Res. A 729, 426–433 (2013). https://doi.org/10.1016/j.nima.2013.06.019
C. Zhang, Z.Y. Guo, A. Schempp et al., Low-beam-loss design of a compact, high-current deuteron radio frequency quadrupole accelerator. Phys. Rev. Spec. Top. Accel. Beams 7(10), 100101 (2004). https://doi.org/10.1103/PhysRevSTAB.7.100101
R. Gaur, P. Shrivastava, Beam dynamics and electromagnetic design studies of 3 MeV RFQ for SNS Programme. J. Electromag. Anal. Appl. 02(09), 519–528 (2010). https://doi.org/10.4236/jemaa.2010.29068
C. Xiao, Y. He, Y.J. Yuan, et al. Particle-in-cell mode beam dynamics simulation of the low energy beam transport for the SSC-linac injector. Chinese Phys. C 35(5), 500–504 (2011). https://doi.org/10.1088/1674-1137/35/5/019
K.R. Crandall, T.P. Wangler, L.M. Young, et al., RFQ design codes, LA-UR-96-1836
Y.S. Cho, Design of a 200-MHz RFQ for 3-MeV He beam irradiation. J. Korean Phys. Soc. 63(7), 1327–1331 (2013). https://doi.org/10.3938/jkps.63.1327
X. Yan, K. Zhu, Y. Lu et al., Design of RFQ accelerator facility of PKUNIFTY. Phys. Proc. 26, 79–87 (2012). https://doi.org/10.1016/j.nima.2010.12.028
R.A. Jameson, New linac technology for SSC, and beyond? Paper presented at International Conference on High-Energy Accelerators, Fermi National Accelerator Laboratory, Batavia, IL, Aug 2011
X.H. Zhang, Y.J. Yuan, J.W. Xia et al., Conceptional design of a heavy ion linac injector for HIRFL-CSRm. Chinese Phys. C 38(6), 74–81 (2014). https://doi.org/10.1088/1674-1137/38/10/107002
M. Weiss, Turner S, in CERN Accelerator School : 5th Advanced Accelerator Physics Course, Rhodes, Greece, 20 Sep.-1 Oct. 1995, p. 974
S. Yamada, Buncher section optimization of heavy ion RFQ linacs, in LASL Proceedings of the 1981 Linear Accelerator Conference (1981), pp. 316–318
X.H. Zhang, Y.J. Yuan, J.W. Xia et al., Instability research of 53.667 MHz heavy ion RFQ. J. At. Energy Sci. Technol. 49(5), 951–954 (2018). https://doi.org/10.7538/yzk.2015.49.05.0951
T. Sen, M.J. Syphers, Effect of power supply ripple on emittance growth in the collider, in Proceedings of the Particle Accelerator Conference, vol. 1 (IEEE, 1993), pp. 146–148
Y. Cao, J. Li, L.T. Sun et al., An all permanent magnet electron cyclotron resonance ion source for heavy ion therapy. Rev. Sci. Instrum. 85(2), 02A960 (2014). https://doi.org/10.1063/1.4852335
K. Zhu, Y.R. Lu, X.J. Yin et al., The beam commissioning of a CW high charge state heavy ion RFQ. J. Nucl. Instrum. Methods Phys. Res. 794(3), 113–121 (2015). https://doi.org/10.1016/j.nima.2015.05.012
Acknowledgements
The authors would like to give special thanks to Prof. Yuan-Rong Lu at Peking University for his helpful suggestions, and to several other individuals of the Institute of Modern Physics, CAS, for their help and support.
Author information
Authors and Affiliations
Corresponding author
Additional information
This work was supported by the National Natural Science Foundation of China (No. 11375243) and the Guangdong Innovative and Entrepreneurial Research Team Program (No. 2016ZT06G373).
Rights and permissions
About this article
Cite this article
Wang, KD., Yuan, YJ., Yin, XJ. et al. Fast-bunching design of compact heavy ion RFQ linac. NUCL SCI TECH 29, 180 (2018). https://doi.org/10.1007/s41365-018-0514-x
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1007/s41365-018-0514-x