James Glanz
Louisville--The magnetic fusion program may be in tatters after Congressional budget cuts, but plasma physicists are applying fusion hardware and concepts to new problems. At a meeting here, one group reported using a fusion machine to study how pressure fluctuations in a plasma can drive a natural dynamo, producing a magnetic field--a process that may be responsible for some of the magnetic fields that thread the cosmos. Two other groups described schemes for turning fusion devices into rocket thrusters. A fourth line of work may have solved a problem that plagued fusion studies: explosions within plasmas that theory says should be stable.