Shift-scale invariance based computer code for wiggler radiation simulation

A new package of computer codes for calculating incoherent electromagnetic radiation from a relativistic electron beam moving in arbitrary three-dimen sional magnetic field is developed at Hiroshima University. The codes are a ble to accept either an experimentally measured magnetic field or numerical ly simulated field map (with field errors, if necessary). The near-field ef fects as well as the electron beam emittance effects are also included into simulation. The codes are based on the shift-scale invariance property of radiation spectra that enables us to reduce considerably the bulk of indivi dual calculations of single electron radiation. (C) 2001 Elsevier Science B .V. All rights reserved.