Reconstruction of Particle Distributions at RFQ Exit at SNS Beam Test Facility

Zhouli Zhang, Alexander Aleksandrov, Sarah Cousineau, Berz, Martin (Ed.), Schaa, Volker RW (Ed.), Snopok, Pavel (Ed.), Makino, Kyoko (Ed.)
Fluctuations of beam parameters and uncertainties of quadrupole gradients during measurements have effects on the reconstruction of initial particle distributions. To evaluate these effects, the concept of a distribution discrepancy is proposed. Results suggest effects of fluctuations of beam parameters are small, while uncertainties of quadrupole gradients are the main factors that affect the reconstructed distributions. By comparing the measured distributions with distributions produced by
more » ... ions produced by tracking the reconstructed initial distributions, it is proved that the real or quasi-real (closest to real) initial distribution can be obtained as long as the minimum distribution discrepancy is found.
doi:10.18429/jacow-icap2018-supaf10 fatcat:45y74nkxxbeovbbbo6lf42qzvi