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 - Bellan, L. AU - Comunian, M. AU - Donegani, E.M. AU - Eshraqi, M. AU - Grespan, F. AU - Jones, B. AU - Laface, E. AU - Levinsen, Y. AU - Milas, N. AU - Miyamoto, R. AU - Neri, L. AU - Noll, D. AU - Pisent, A. AU - Plostinar, D.C. AU - Sosa, A.G. ED - McIntosh, Peter ED - Burt, Graeme ED - Apsimon, Robert ED - Schaa, Volker R.W. TI - Space Charge and Electron Confinement in High Current Low Energy Transport Lines: Experience and Simulations From IFMIF/EVEDA and ESS Commissioning J2 - Proc. of LINAC2022, Liverpool, UK, 28 August-02 September 2022 CY - Liverpool, UK T2 - International Linear Accelerator Conference T3 - 31 LA - english AB - The mechanism of space charge compensation given by the residual gas ionization is a key factor for the emittance containment in the low energy beam transport (LEBT) lines of high intensity hadron injectors. A typical front end including a microwave Ion source, a LEBT and Radio Frequency Quadrupole (RFQ), is equipped with two repellers at each interface to prevent electrons from flowing back, to the source, or forward, to the RFQ. In this paper we will emphasize the importance of the ion Source and LEBT repellers on giving the appropriate boundary conditions for the space-charge compensation building-up mechanism. The theory and simulations are supported by experiments performed in the high intensity facility such as ESS and IFMIF/EVEDA. PB - JACoW Publishing CP - Geneva, Switzerland SP - 618 EP - 621 KW - rfq KW - electron KW - LEBT KW - extraction KW - ion-source DA - 2022/09 PY - 2022 SN - 2226-0366 SN - 978-3-95450-215-8 DO - doi:10.18429/JACoW-LINAC2022-TUPORI29 UR - https://jacow.org/linac2022/papers/tupori29.pdf ER -