Our objective in this paper is to describe an invariant optimality criterion and then apply it to the procedure of emittance measurement in periodic beam transport channels.
@article{arxiv.1305.1528,
title = {Optimal Twiss Parameters for Emittance Measurement in Periodic Transport Channels},
author = {V. Balandin and W. Decking and N. Golubeva},
journal= {arXiv preprint arXiv:1305.1528},
year = {2013}
}