A new secondary beamline was recently installed in the MeV Test Area (MTA) with the objective of enhancing mu+/mu- production by factors of 3/8 by using a tungsten target versus the conventional graphite production target using the 400 MeV Fermilab proton Linac beam. Ultra-low energy muon beams can support world-class physics experiments for fundamental muon measurements, sensitive searches for symmetry violation, and precision tests of theory. The beamline was designed to transport up to 100 MeV/c decay-in-flight pi- for mu- and down to a few MeV for mu+ surface muons. Mu- will be applied to a muon-catalyzed fusion experiment, which requires a large momentum acceptance within a small transverse acceptance. Studies are also underway towards a high-efficiency source of muonium by stopping the mu+ beam in superfluid helium. Muon production and transport scenarios have been simulated and optimized using the particle tracking code, G4Beamline. The results of these G4Beamline studies and target optimization will be presented here. Plans for experimental measurements to benchmark simulations and future applications using this multi-user, low-energy muon MTA facility will also be discussed.

A center for ion beam therapy and research is under development in Waco, TX with site preparation and construction underway. The center incorporates state-of-the-art accelerator technologies including the capability to perform ultra-high dose irradiation (FLASH) research with ions. The ion source and beam capture system will be comprised of an Electron-Cyclotron-Resonance (ECR) source coupled to a Radio-Frequency Quadrupole linac (RFQ) through a conventional Low-Energy Beam Transport (LEBT) section. An RFQ linac, which uses electrical RF focusing, has the noted advantage of capturing, auto-bunching and efficiently accelerating DC (constant current) ion beams directly from the source. A test stand is being designed and implemented using an existing CW, variable-frequency, ion RFQ with the capability to accelerate ions with a charge to mass ratio of 1/8 up to 1/2 to a maximum output energy of 0.4 MeV/nucleon. The ion RFQ, originally used as an injector to the HZB cyclotron, has been transferred to the Waco center for ion therapy and research. This paper documents source, the LEBT design and optimization to match to the RFQ capabilities. This multi-ion RFQ frontend will serve as the pre-accelerator and ion selector for injection into higher energy ion cyclotrons.