CW Electron Beams at 30 MeV
Pulse Stretchers – Microtrons and Superconducting Linacs
Dr. Townsend Zwart
Massachusetts Institute of Technology
Laboratory for Nuvlear Science
A variety of techniques are possible for the production of CW electron beams
at 30 MeV. Short linac pulses can be stored in a ring and extracted
quasi-continuously over timescales from milliseconds to seconds.
The design and performance of the MIT Bates South Hall Ring pulse stretcher
will be presented. The performance of the Bates ring using 1/2 integer resonant
extraction will also be compared with the Amsterdam Pulse Stretcher ring
using 1/3 integer resonant extraction. Other facilities exist that produce
CW beams in this energy regime. Two examples, the Mainz microtron and the
ELBE Superconducting accelerator will also be briefly presented.