Xing, Y MGlorius, JanVarga, LBott, LBrandau, CBruckner, BChen, R JChen, XDababneh, SDavinson, TLane, GregoryReed, Matthew2023-02-020168-9002http://hdl.handle.net/1885/284128Luminosity is a measure of the colliding frequency between beam and target and it is a crucial parameter for the measurement of absolute values, such as reaction cross sections. In this paper, we make use of experimental data from the ESR storage ring to demonstrate that the luminosity can be precisely determined by modelling the measured Rutherford scattering distribution. The obtained results are in good agreement with an independent measurement based on the x-ray normalization method. Our new method provides an alternative way to precisely measure the luminosity in low-energy stored-beam configurations. This can be of great value in particular in dedicated low-energy storage rings where established methods are difficult or impossible to apply.This work is supported in part by the European Research Coun- cil (ERC) under the European Union’s Horizon 2020 research and innovation programme (Grant Agreement No. 682841 ‘‘ASTRUm’’), the NSFC, China (Grants No. 11905261), the Key Research Program of Frontier Sciences of CAS, China (Grant No. QYZDJ-SSW-S), the National Key R&D Program of China (Grant No. 2016YFA0400504 and No. 2018YFA0404400) and the Helmholtz-CAS Joint Research Group, China (Grant No. HCJRG-108). Y.M.Xing. thanks for support from CAS ‘‘Light of West China’’ Program. Y.A.L. acknowledges support by the CAS President’s International Fellowship Initiative, China (Grant No. 2016VMA043)application/pdfen-AU© 2020 Elsevier B.V.LuminosityRutherford scatteringStorage ringBeamGas targetReaction202010.1016/j.nima.2020.1643672021-12-02