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TUPAG12 |
SNS Beam Test Facility for Experimental Benchmark of High Intensity Beam Dynamics Computer Simulation | |
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The SNS Beam Test Facility (BTF) is a 2.5 MeV hadron accelerator equipped with state-of-the-art transverse and longitudinal beam diagnostics. The BTF can produce pulsed high intensity H− beam with up to 50mA peak current. The expected available beam-on time of a few thousand hours per year provides an opportunity for carrying out advanced high intensity beam dynamics experiments. The first ever direct measurement of 6D phase space distribution of a beam in an accelerator has recently been completed. Preliminary analysis of the data shows a complex phase space structure that is not visible in measurements below 5D, including correlations between degrees of freedom not customarily measured together. This result opens path forward to solving the long-standing problem of initial condition in hadron linac beam dynamics simulation. An extension of the BTF beam line consisting of a FODO line and high dynamic range emittance monitor is being built to provide a test bench for simulation codes benchmarking against measurements in well controlled environment. This paper describes these efforts along with the longer-term plans. | ||
Slides TUPAG12 [3.610 MB] | ||
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