ELISE, a code for intensity dependent effects

ELISE (electron ring limits on intensity, stability, and emittance) is a program which duplicates many of the functions provided by the more general program ZAP. The motivation for the code was to provide an interactive system for quick answers that could be used during accelerator commissioning. A lattice program, IDA, developed earlier by the author provides a good model of the type of user-friendly interaction that would be desirable in such a code.<>