TY - CPAPER AU - Lidia, S.M. AU - Murphy, K. TI - Error Analysis for Pepperpot Emittance Measurements Redux: Correlated Phase Spaces J2 - Proc. of IBIC2014 AB - Recently, Jolly et al. presented an analysis of the rms emittance measurement errors from a first principles approach [1]. Their approach demonstrated the propagation of errors in the single-plane rms emittance determination from several instrument and beam related sources. We have extended the analysis of error propagation and estimation to the fully correlated 4-D phase space emittances obtained from pepperpot measurements. We present the calculation of the variances using a Cholesky decomposition approach. Pepperpot data from recent experiments on the NDCX-II beamline are described, and estimates of the emittances and measurement errors for the 4-D as well as the projected rms emittances in this coupled system are presented. PB - JACoW CY - Geneva, Switzerland SP - 579 EP - 583 KW - emittance KW - background KW - target KW - diagnostics KW - ion DA - 2014/10 PY - 2014 SN - 978-3-95450-141-0 UR - http://jacow.org/IBIC2014/papers/wepf17.pdf ER -