Liu, W. (Argonne National Lab) ; Gai, W. (Argonne National Lab)

Abstract: Recent progress in technology made it possible to pursue high K and short period undulator as an option for ILC positron source. In general high K and short period undulator will radiate more photons and thus enhance the yield of positron source for a given length of undulator. This report will document the numerical studies so far for such positron source using high K short period undulator parameter for future reference.