Two Accel/Decel Experiments: Electron Capture for 6 to 20 MeV S exp 10 - exp 16+ on He and Ar and Interference Effects in MO K X-Ray Spectra for 5, 10, and 20 MeV Cl exp 16+ on Ar

摘要

The recent development of four-stage accel-decel operation of the dual MP tandem accelerators at Brookhaven National Laboratory has made it possible to extend atomic collision experiments over an unprecedented range of high charge states and low velocities. Briefly, this mode of operation uses the first MP tandem conventionally for two stages of acceleration, then with a negative terminal voltage the second MP tandem provides a third stage of acceleration to high velocity, stripping to high charge state and a final stage of deceleration to low velocity. Details of operation and recent upgrades of the facility were reviewed earlier. An overview of present capabilities and the results of two experimental studies using accel-decel beams are presented here. (ERA citation 09:010989)