New and Modified Elements

• The GFWIGGLER element was added, which allows simulation of wigglers and undulators using the generating-function method of J. Bahrdt and G. Wüstefeld. This was implemented by A. Xiao.
• The SCMULT element (space-charge kicks) now supports distributions that are transversely gaussian and uniform longitudinally. This was requested by R. Kishek (University of Maryland) and implemented by A. Xiao (ANL).
• The KQUAD element now supports symplectic fringe fields using the method of Irwin and Wang et al.. This was implemented by C. Wang and M. Borland (ANL).
• Sextupoles (SEXT) now include a third-order matrix treatment of fringe fields.
• Octupoles have been added. The OCTU and KOCTU elements are the matrix and kick implementations, respectively.
• The RIMULT element was added. It allows MULTiplying the Radiation Integrals by a specified factor, which allows computing the emittances etc. for a ring with many different sector types without simulating the entire ring.
• The CENTER element now has the ability to operate on the $s$, $t$, and $\delta$ coordinates.
• The ZLONGIT and ZTRANSVERSE elements now have two parameters, WAKE_START and WAKE_END, that allow specifying when to start and stop providing output of the computed wakes. This was suggested by Y. Chae (ANL).
• The CWIGGLER element will now accept up to 1000 harmonics.
• The default mode for LSRMDLTR was changed from ``ideal'' to ``leading terms.'' The former does not include vertical focusing, which is physically not correct. The default pole-strength factors were refined.
• The SCRIPT element has two new flags, USE_PARTICLE_ID and NO_NEW_PARTICLES, which improve particle accounting, particularly when particles are lost in the script element.