@article {palchan2007electron,
	title = {Electron density in low density capillary plasma channel},
	journal = {Applied physics letters},
	volume = {90},
	number = {6},
	year = {2007},
	publisher = {AIP Publishing},
	author = {Palchan, T and Kaganovich, D and Sasorov, P and Sprangle, P and Ting, C and Zigler, A}
}
