New features in AT 1.2

1. Multiple platforms - one distribution

AT 1.2 runs on Windows and UNIX platforms: SUN Solaris, Linux and Compaq TRU64.
Script atmexall can generate all platform-specific mex-files using the gcc compiler on Unix systems and MSVC on Windows. For the users who don't own MSVC compiler Windows mex-files are included with the distribution.

2. High-level Accelerator Physics Tools

Optimized tracking functions ringpass and linepass.
Function ringpass replaces platform specific functions for long-term tracking: ringpassw , ringpassl , ringpasst64... It is now equally efficient for small and large number of turns.
New functions twissring, twissline, and tunechrom
are much faster than linopt for linear optics calculations without x-y coupling.
Global structure NIMDIFPARAMS allows the user to overwrite the default step-size for numerical differentiation used by some AT functions

3. Low-level: Element Types and Pass Methods

corrector and CorrectorPass - dedicated element type and pass method to model corrector magnet for closed orbit correction.
Function ringpass replaces platform-specific functions in AT1.1 for long-term tracking: ringpassw , ringpassl , ringpasst64... It is now equally efficient for small and large number of turns.
BendLinearFringeTiltPass - pass-method for a tilted bending magnet in 3-d lattices with linear treatment of the fringe-field effects.

4 . Lattice Tools

Function readmad constructs AT lattice in the MATLAB workspace from MAD¹ output.
atparamgroup allows to define a functional relationship between a single scalar (control) parameter and multiple of physical parameters of the accelerator lattice. This can be used in combination with MATLAB optimization tools for fitting and optics matching.
intlat - an improved GUI tool for interactive lattice editing

AT Home

¹MAD: Methodical Accelerator Design program by C. Iselin and H. Grote (CERN)