BOA is built to run on these versions of Microsoft Windows: Windows 2000, Vista, Windows 7 and Windows 10. The installer of BOA version 6.1 and later unify the platform to include both 32-bit and 64-bit platforms. It will detect the PC platform and install the appropriate version. Existing users of v 6.0 and earlier are required to remove their existing version first before installing v6.1 and later.

BOA version 8.0 is now available. It has two new features (1) to scan for beam currents with various combination of electrode potentials (2) to use Shapelet method to interpolate and smooth current/power density locally deposited by particles. Please refer to the Release Notes for more details.

BOA version 7.5 also comes with two versions, 32 bit and 64 bit and automatically installed a proper version on your PC. Please refer to the Release Notes for more details.

BOA version 6.0 or earlier is no longer supported and available for download. They did come in two versions, one for 32-bit and one for 64-bit computers.  Thus, for v6.0 or earlier, please make sure you select the correct version of BOA to install on your machine.  If you don’t know which version to install, go the Start Menu, choose “Run…”, type “cmd” in the edit box and hit OK.  A command prompt window will appear.  Type the word “set” and hit enter.  The command prompt window will display a long list of entries.  If this list includes “PROCESSOR_ARCHITECTURE=x86”, you have a 32-bit computer and should download the x86 version of BOA.  If the list says “PROCESSOR_ARCHITECTURE=AMD64”, you have a 64-bit computer and should download the x64 version of BOA.