RMS ENVELOPE BACK-PROPAGATION IN THE XAL ONLINE MODEL
Christopher K. Allen, H. Sako, Masanori Ikegami · 2009
The ability to back-propagate RMS envelopes was added to the J-PARC XAL online model. Specifically, given an arbitrary downstream location, the online model can propagate the RMS envelopes backward to an arbitrary upstream location. This feature provides support for algorithms estimating upstream conditions from downstream data. The upgrade required significant refactoring, which we outline. We also show simulations using the new feature.