The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Kazinova, O. AU - Butenko, A.V. AU - Kostromin, S.A. AU - Mikhailov, V.A. AU - Tuzikov, A. ED - Kuzin, Maksim V. ED - Schaa, Volker RW TI - Numerical Computation of Dynamic Aperture for the NICA Booster J2 - Proc. of RUPAC2018, Protvino, Russia, 01-05 October 2018 C1 - Protvino, Russia T2 - Russian Particle Accelerator Conference T3 - 26 LA - english AB - Modern accelerators are made with high-field superconducting dipoles, quadrupoles and sextupoles that exhibit unintentional imperfections of the guiding field-shape due to construction tolerances, persistent currents and magnetic saturation. This deviation from linearity has a profound influence on the beam dynamics. In this work the research of nonlinear beam dynamics for the NICA booster was carried out. Sextupole and octupole fields for dipole and quadrupole magnets, according to ongoing magnetic measurements, were taken into account, as well as adjustment errors for magnets. Numerical simulation in MADX program has been used to evaluate the dynamic aperture for the booster. In addition, betatron tune shift with amplitude was calculated. The results showed that dynamic aperture is exceeded its geometrical acceptance at least in three times. PB - JACoW Publishing CP - Geneva, Switzerland SP - 175 EP - 177 KW - dynamic-aperture KW - booster KW - resonance KW - vacuum KW - quadrupole DA - 2018/11 PY - 2018 SN - 978-3-95450-197-7 DO - 10.18429/JACoW-RUPAC2018-TUPSA14 UR - http://jacow.org/rupac2018/papers/tupsa14.pdf ER -