@article {699,
	title = {Wave{\textendash}particle interactions in a long traveling wave tube with upgraded helix},
	journal = {Physics of Plasmas},
	volume = {27},
	year = {2020},
	pages = {093108},
	type = {Selected as an Editor{\textquoteright}s Pick},
	issn = {1070-664X},
	doi = {10.1063/5.0018959},
	url = {http://aip.scitation.org/doi/10.1063/5.0018959},
	author = {M. C. de Sousa and Doveil, F. and Elskens, Y. and I. L. Caldas}
}
