Mr. Carroll was born in San Francisco and grew up in the Bay Area. He received a BA in Philosophy in 1969 from Catholic University of America. Over the next 12 years he worked as a math teacher, store manager, photographer, and solar energy researcher. Since 1981 his main focus has been advanced space transportation concepts, with an emphasis on the use of long tethers to sling payloads into higher or lower orbits. He proposed and led the development of the Small Expendable Deployment System (SEDS), which was used 3 times in orbit. SEDS deployed tethers 4 to 20 km long, proving out tether concepts for spacecraft stationkeeping and controlled deorbit without rockets. He also developed the deployer and wire for the Plasma Motor Generator (PMG), which tested electrodynamic reboost in 1993. He has also worked on several electrodynamic concepts, including reboost of the Mir station, and a NIAC study of debris removal by electrodynamic tether which he will discuss at the Sunday panel. He has also worked on unmanned and manned reentry vehicle concepts for NASA MSFC and Ames and several startups. Mr. Carroll has 5 patents: 3 on electrodynamic tether operation (with Eugene Levin), and two on enhanced 'tile-type' thermal protection materials (with co-inventors from NASA Ames). His most recent work was design lead for the Naval Research Lab on a high-voltage electron collection experiment which was launched 2 months ago.
Tether Applications, Inc