A proposal has been prepared to upgrade the LINAC at ANU, using re-plated PbSn split loop resonators performing at 3.6 MV/m, and the addition of two- and three-stub resonators. The system is designed to provide 6 MeV/a.m.u. 107Ag starting with gas-stripped beam from the 14 UD, which is then foil-stripped before the LINAC. No major changes to the beam optics components will be required other than addition of a large bore rebuncher in the middle of the 180° achromat. Models of the two- and three-stub resonators have been built and optimized for the goal frequency, for the separation of accelerating and other modes as well as for the minimization of the current in the demountable joints. A copper prototype has been constructed and is being plated with PbSn for cold testing.
Volume 95, 2021
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