Flattening the Field during Injection in the Fermilab Booster using Dipole Corrector Magnets

Conference · Mon Jul 01 04:00:00 EDT 2024

DOI:https://doi.org/10.2172/2396725· OSTI ID:2396725

Seiya, Kiyomi ^[1]; Barak, D. ^[1]; Bhat, C. ^[1]; Chaurize, S. ^[1]; Omark, T. M. ^[1]; Ostiguy, F. J. ^[1]; Pfeffer, H. ^[1]; Triplett, A. K. ^[1]; Vaughn, B. ^[1]

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1. Fermilab

The FNAL Booster is a fast cycling 15 Hz resonant circuit synchrotron accelerating proton beam from 400 MeV to 8 GeV. The linac pulse injected into the Booster is ˜32 usec long and fills the ring by multi-turn charge-exchange injection. As part of the PIP-II project, the Booster injection energy and repetition rate will be increased to 800 MeV and 20 Hz respectively. Due to much reduced average current in the new superconducting PIP-II linac, the injection time will increase to 550us. A shorter machine cycle coupled to a longer injection time make flattening the injection porch B-field during injection important requirement for successful PIP-II operation. We aim to achieve: (1) flattening of the net bending during injection using dipole correctors, and (2) using a new system based on an Altera FPGA board, reduction of the cycle-to-cycle bending field variation caused by current jitter in the Gradient Magnet Power Supply (GMPS). While the flat injection scheme is essential to future PIP-II operations, it should also noticeably improve efficiency for present HEP operations.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 2396725
• Report Number(s): FERMILAB-POSTER-24-0072-AD; oai:inspirehep.net:2803419
• Country of Publication: United States
• Language: English

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