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(The documents listed below are in Adobe Acrobat (.PDF) format. A free Acrobat browser may be found at Adobe's website,

[.pdf, 611K]
Antimatter-Initiated LiH Plasma Generated in a Penning Trap. ABSTRACT: Antimatter annihilation is one of few propulsion concepts able to provide near-interstellar speeds for spacecraft. It is also one of the least developed propulsion concepts, as it suffers from several technological challenges. However, with the High Performance Antimatter Trap (HiPAT) constructed at Marshall Space Flight Center, we can begin first-stage propulsion demonstrations with only 5 x 10^9 antiprotons. Here, we consider a prototype of an antimatter-initiated lithium hydride (LiH) plasma thruster. Through the use of the MHD code MACH2, we investigate the expansion and expulsion of such LiH plasmas using magnetic confinement. (Summary of thesis research conducted by Mr. Kirby Meyer)

[.pdf, 715K]
AIMSTAR: Antimatter Initiated Microfusion for Pre-cursor Interstellar Missions. ABSTRACT: We address the challenge of delivering a scientific payload to 10,000 A.U. in 50 years. This mission may be viewed as a pre-cursor to later missions to Alpha Centauri and beyond. We consider a small, nuclear fusion engine sparked by clouds of antiprotons, and describe the principle and operation of the engine and mission parameters.

[.pdf, 103K]
Antiproton Production for Near-term Propulsion Applications. ABSTRACT: The superior energy density of antimatter annihilation has often been pointed to as the ultimate source of energy for propulsion. Unfortunately, the limited capacity and very low efficiency of present-day antiproton production methods suggest that antimatter may be too costly to consider for near-term propulsion applications. We address this issue by assessing the antimatter requirements for six different types of propulsion systems, including two concepts in which antiprotons are used as a "catalyst" for fusion-based thrust production. (Courtesy NASA Marshall Space Flight Center)

[.pdf, 735K]
Antiproton-Catalyzed Microfission/Fusion Propulsion Systems for Exploration of the Outer Solar System and Beyond . ABSTRACT: Production and trapping of small numbers of antiprotons for space applications are reviewed, setting the stage for antiproton-catalyzed microfission/fusion (ACMF) reactions as a source of propulsive power. A spacecraft designed around an ACMF engine has been designed. Details, including Isp, thrust, structural features, power systems, radiation shields, ion drivers, payload and system masses, are reviewed.

[.pdf, 703K]
Antiproton Portable Traps and Medical Applications. ABSTRACT: Several medical applications utilizing antiprotons stored and transported in a portable Penning trap are considered. These include production of radioisotopes for PET, radiography and radiotherapy. Specifications of a portable antiproton trap suitable for this work are discussed, and progress on the development of such a trap is reported.

[.pdf, 368K]
Antiproton Production and Trapping for Space Propulsion Applications. ABSTRACT: Production and trapping of antiprotons for space propulsion applications are reviewed. Present and foreseeable production rates at Fermilab are discussed, and experiments on trapping, confinement, and transport of large quantities of antiprotons, as well as synthesis of atomic antihydrogen, are outlined.

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This page was last modified on February 27, 2001.