Speaker
Description
At iThemba Laboratory for Accelerator Based Sciences (LABS) proton beams, extracted from an internal Penning ion source, are pre-accelerated in a K8 injector cyclotron and further accelerated in a K200 Separated Sector Cyclotron. The accelerated beams are transported to various target stations used for radionuclide production. An important parameter of the Penning ion source is its lifetime. The multitude of factors which impacts this parameter remains not well-understood for the Penning ion source at iThemba LABS. From previous investigations it is known that this parameter is strongly influenced by the discharge voltage and current. To develop a deeper understanding of the impact of these parameters on the source lifetime a new diagnostic is currently being developed in collaboration with the ISIS Facility of the Rutherford Appleton Laboratory. The proposed work builds on pioneering development of a similar system on the pulsed Penning ion source at ISIS. This contribution will present a preliminary design of the voltage monitoring system and some sputtering analysis of the cathode of the ion source after operation based on the measured voltage.
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