Los Alamos National Laboratory's Antiproton Research

This is the report on the status of the experiment to measure the gravitational mass of an antiproton in a vertical drift tube. The capability must be developed to capture, cool, and store millions of antiprotons produced at the target of the large accelerator at CERN. Of interest are the ion traps needed to do this. These traps can be used as an intermediate step in the production of antihydrogen because they can, in principle, hold useful quantities of antiprotons at low temperatures. Antihydrogen annihilation is a potential energy source for very high performance space propulsion systems. A number of successful trapping experiments were performed, the details of which are in Appendix 2 of this report and in Holzcheiter et.al. Captured 2-10 KeV negative Hydrogen Ions Into a Penning Trap, Physica Scripta T22, 290 1988.