Ion ramjets

I see that Andrea Lucca Fabris and Mansur Tisaev of the University of Surrey Space Centre are now working on electric ion ramjets for satellite drag makeup. My friend James E. Cox was developing that idea at TRW in the 1970s. I have his TRW report* and he and I discussed the idea at the time as it related to my own work** on ion electric space propulsion.   

* TRW Systems Group 4753.75.3-003, Applications & Feasibility of An Electric Ion Ramjet, 13 January 1975

** See, for example, I.E.E.E. Transactions on Plasma Science,  vol. 10, pg. 8, 1982