Johnstone, J.A. Johnson, D.E. JACoW Publishing Geneva, Switzerland 2673-5490 978-3-95450-214-1 10.18429/JACoW-IPAC2021-WEPAB221 English 3142-3144 site proton booster radiation kicker Contribution to a conference proceedings 2021 2021-08 https://doi.org/10.18429/JACoW-IPAC2021-WEPAB221 https://jacow.org/ipac2021/papers/wepab221.pdf In foil stripping of H⁻ some fraction of the emerging neutral H⁰ will be in excited states, which can then strip through the Stark effect in the magnetic field of the downstream orbit bump magnet. The resultant H⁺ will experience a depleted net kick compared to protons emerging from the foil and will track on trajectories different from the nominal circulating beam. This will lead to irradiation of downstream machine components. An analysis of these processes is of particular importance looking forward to the much higher beam power of the Fermilab PIP-II era. This study investigates where these errant protons will be lost, how much power is deposited, and whether this will be a shielding concern.