Abstract
The injection beam loss is the main beam loss of the rapid cycling synchrotron (RCS) for the China Spallation Neutron Source (CSNS). After the optimization of injection system during the beam commissioning, the current injection beam loss for CSNS/RCS is approximately 1%. There are several sources of injection beam loss. In order to distinguish these different sources, the stripping efficiency of the main stripping foil should be studied and measured accurately. In this paper, a scheme for the accurate measurement of the stripping efficiency for CSNS will be proposed and studied. It can not only reduce the injection beam loss, but also be used to estimate the operation state and lifespan of the main stripping foil accurately. This method will be applied in future beam commissioning.
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