Peters, C.C. Blokland, W. Justice, T.A. Southern, T.B. JACoW Geneva, Switzerland 978-3-95450-192-2 10.18429/JACoW-IBIC2017-TH2AB1 English 491-498 TH2AB1 ion cavity DTL linac rfq Contribution to a conference proceedings 2018 2018-03 https://doi.org/10.18429/JACoW-IBIC2017-TH2AB1 http://jacow.org/ibic2017/papers/th2ab1.pdf Over the years SNS has been optimizing the amount of errant beam pulses in the accelerator. The errant beam pulses can damage the superconducting cavities and thus lower the uptime of the accelerator. This talk will present the effort that has been made to lower the amount of errant beam pulses with new diagnostics, analysis of processes that cause errant beam, and the resulting lessons learned.