JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - CONF AU - McLain, J.T. AU - Scott, R.H. AU - Vondrasek, R.C. ED - Maimone, Fabio ED - Schaa, Volker RW ED - Mueller, Raphael TI - ECR2 performance upgrades at ATLAS J2 - Proc. of ECRIS2024, Darmstadt, Germany, 15-19 September 2024 CY - Darmstadt, Germany T2 - International Workshop on Electron Cyclotron Resonance Ion Sources T3 - 26 LA - english AB - The user requests for higher beam energies and intensities have driven the decision to upgrade the ECR2 ion source at the Argonne Tandem Linac Accelerator System. Multiple upgrades are in progress with the expected outcome of dramatically increased ECR2 beam intensities and charge state capabilities. The magnetic upgrades include integrating an improved hexapole permanent magnet array that provides the ion source radial fields, reworking the magnetic materials surrounding the plasma chamber, and installing a new cooling system for the electromagnetic solenoids that govern the ion source axial fields. The new hexapole and higher solenoid magnet operating currents will increase the ion source magnetic fields and support the use of 18 GHz RF heating, further increasing the ECR2 beam capabilities. Following these improvements and subsequent source performance, simulations of beam transport devices on the ion source platform will need to be revisited for transmission of high intensity beams. Details of these upgrade projects and simulations of the ion optics are presented. PB - JACoW Publishing CP - Geneva, Switzerland SP - 72 EP - 75 KW - ECR KW - plasma KW - ion-source KW - solenoid KW - extraction DA - 2024/09 PY - 2024 SN - 2222-5692 SN - 978-3-95450-257-8 DO - doi:10.18429/JACoW-ECRIS2024-TUA2 UR - https://jacow.org/ecris2024/papers/tua2.pdf ER -