We were honored to have Melike Abliz from Argonne National Laboratory present at the SIMULIA Americas Users Conference, May 3-4, 2023 in Novi, Michigan.
Abstract: The Advanced Photon Source Upgrade project (APS-U) will replace the present storage ring of the Advanced Photon Source (APS) with a new storage ring based on a multi-bend achromat (MBA) lattice. For the APS-U, we have simulated magnetic crosstalk between the Q2 quadrupole and the adjacent M1 longitudinal gradient magnet using Opera for the minimum separation of 5 cm. Opera provided integrated dipole and quadrupole fields crosstalk effect of 0.01% and 0.16 between the M1 and Q2 magnets, respectively. We built those ring magnets and measured their crosstalk. We confirmed that Opera provided the crosstalk field between those magnets precisely. We introduced an advanced design structure to the hybrid planar permanent magnet (HPPM) undulators and simulated for different period lengths of 28 mm, 25 mm, 21 mm, and 13.5 mm for the APS-U. We built those undulators and confirmed Opera simulation results and introduced a novel design concept of canceling the septum magnet (DC) leakage field as an R&D of the APS-U project. We built a prototype of the septum magnet and measured its leakage field and confirmed that it matches the Opera simulation well. We will present our Opera simulation results of some magnets that we published already by comparing their results.
Bio: Melike Abliz received her Ph. D in the experimental low-temperature magnetism of condensed matter physics from Osaka University in Japan. She worked for Osaka University as a lecturer and for Tokyo University as a researcher. She then came to the US to develop a magnetic measurement method for the high-pressure study at the University of Alabama at Birmingham. After that, she joined Advanced Photon Source, Argonne National Laboratory, for the magnetic tuning and design of undulators. Since 2014, she joined the APS-U project and designed a DC septum magnet and HPPM undulators for various period lengths of 28 mm, 25 mm, 21 mm, and 13.5 mm. She has also simulated some storage ring magnets’ magnetic crosstalk for the APS-U, including an AC septum magnet and has about 100 publications.
Opera Infrastructure Energy & Materials
