Funding for this research was provided by:
National Science Foundation Graduate Research Fellowship (DGE 1256260)
Air Force Office of Scientific Research, National Defense Science and Engineering Graduate Research Fellowship (32 CFR 168a)
Universities Space Research Association - Center for Space Nuclear Research (Subcontract 06711-003)
Article History
Received: 11 October 2017
Accepted: 20 March 2018
First Online: 10 April 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.