Abstract
Considering the demand of users to achieve minimum emittance and thus the dynamic aperture shrink, it is consistently important to find an optimal scheme for injecting the beam with the maximum current to fill the acceptance. We present an on-axis injection scheme with designed elements of the injection system such as septum and pulsed sextupole magnet (PSM) in the 3.5 GeV storage ring. The on-axis injection with the pulsed sextupole magnet will allow frequent low-charge which will further improve the stability in the storage ring. A macroparticle beam of Gaussian distribution is used for simulating the injection process by the ELEGANT code. The multiturn injection has been used in the simulations of the injection process in the storage ring. By studying the theory of particle accumulation in each turn of the injection, we calculated the number of possible injection times. A PSM with the desired strength and suitable location can kick the injected beam into limited acceptance. In this study, the reason for the superiority of pulsed sextupole magnet in the injection system over pulsed quadrupole magnet (PQM) has been proposed. The injection system supplies a top-up mode in which the beam current is maintained high by frequent injections in the storage ring. Various errors such as misalignment, space-charge and mismatch are included to obtain realistic simulations of the injection process. Also, the emittance blow-up due to the mismatch errors at the moment of the injection in phase space is expressed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
H Wiedemann, Particle accelerator physics, 3rd Edn (Springer-Verlag, Berlin, 2007)
S Y Lee, Accelerator physics (World Scientific, Singapore, 2004)
S C Leemann, Phys. Rev. ST Accel. Beams 15, 050705 (2012)
S Moniri, P Taherparvar, J. Instrum. 14, T02001 (2019)
M Borland, Technical Report ANL/APS/LS-287 (2000)
K Wille, The physics of particle accelerators: An introduction (Oxford University Press, 2000)
P D V van der Stok, Multiturn injection into the CERN proton synchrotron booster, Report No. CERN-PS-BR-81–28 (1981)
S Kravitz, Math. Mag. 40, 65 (1967)
I Castillo, F J Kampas and J D Pintér, Eur. J. Operat. Res. 191, 786 (2008)
S Appel et al, Nucl. Instrum. Meth. A 866, 36 (2017)
E E Koch, D E Eastman and Y Farges, Synchrotron radiation a powerful tool in science, in Handbook of synchrotron radiation edited by E E Koch (North‐Holland, Amsterdam, 1983)
M Aiba et al, Phys. Rev. ST Accel. Beams 18, 020701 (2015)
S Agostinelli et al, Nucl. Instrum. Meth. A 506, 250 (2003)
I Agapov, G A Blair, S Malton and L Deacon, Nucl. Instrum. Meth. A 606, 708 (2009)
C Sun et al, Phys. Rev. Accel. Beams 23, 010702 (2020)
E S Kim, Nucl. Instrum. Meth. A 811, 49 (2016)
J H Billen and L M Young, Technical Report LA-UR-96–1834 (2003)
R S Saini, Y Tyagi, A D Ghodke and T A Puntambekar, Pramana – J. Phys. 86, 847 (2016)
H Takaki et al, Phys. Rev. ST Accel. Beams 13, 020705 (2010)
R P Fliller, Proceedings of IPAC 10, 1814 (2010)
P K Skowronski, F Schmidt and E Forest, Proceedings of the 22nd Particle Accelerator Conference, 3381 (2007)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Moniri, S., Taherparvar, P. The multiturn transverse injection scheme using short pulse nonlinear kicker into the 3.5 GeV synchrotron storage ring. Pramana - J Phys 98, 6 (2024). https://doi.org/10.1007/s12043-023-02692-0
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1007/s12043-023-02692-0